The Joint Typhoon Warning Center. A Wind Advisory means that wind speeds over 25 mph are expected or wind gusts over 40 mph. The drag force is now much smaller than at the beginning, but it still could accelerate the boat. Extreme winds that have ripped through the Netherlands, Germany, and Belgium are causing some serious and scary sights. Types of wind energy conversion devices. These super-fast winds, combined with heat rising from within the planet's interior, cause the yellow and gold bands visible in Saturn's atmosphere. Wind forecasts, wind maps and live weather reports for kite- and windsurfing, sailing and fishing Windfinder is loading Wind forecasts, wind speed, live weather and wind map for kitesurfing, windsurfing, sailing and fishing. Click the Calculate button. 7 mph > 30 psf = 86. Return to Knots vs MPH lesson. 1-Wind Speed Conversions. The time available for the absorption of impact forces (the absorption rate) will also affect the degree of injury. There's been recent speculation on the reflector about allowable tower wind loads under various conditions. ) to mach. Wind conditions are described as "strong" and whole. 8 at 130 mph. The pressure acting the surface transforms to a force. So, a 10 ft diameter wind turbine in 12 mph average winds might produce about (0. 56 hp should be available, which can still pump a lot of water. Wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature. Let's convert from miles per second to miles per hour. Premium sellers. High near 56. F w = p d A = 1/2 ρ v 2 A (1) where. It affects many aspect of our lives, including the weather and maritime and aircraft operations. Delmarva Power Initiates Multi-Year Wood-to-Steel Utility Pole Conversion Projects to Withstand Hurricane-Force Winds able to withstand up to 120 mph winds. sustained winds of 75 for cat 1 hurricane. Ground Source Heat Pumps. National Weather Service uses to compute wind chill is:. The lake in question is Lake Greenbrier. The joule is a measure of energy, or the ability or capacity to. 00256 x V^2 (V= wind speed in Mph). Severe Weather 101 Types of Damaging Winds. Rain will be accompanied by strong winds with gusts of 50 mph possible inland and perhaps 60 mph around some coasts. IGNACE, MI - Winds measured at higher than 50 mph across the surface of the Mackinac Bridge have prompted a partial closure of the span, the Bridge Authority said Tuesday morning. 9 reduction factor. Convert the wind speed into miles per hour, if they aren't already. NASA-NOAA's Suomi NPP satellite passed over the Northwestern Pacific Ocean revealed that Typhoon Bualoi continued to look asymmetric because of ongoing wind shear. That’s strong enough to be called a tornado. 361794924 lbs/(mph) using the online calculator for metric conversions. Tropical cyclones are like rotating cylinders of winds. February 25, 2019 at 10:39 am Locally, yesterday’s top wind recorded was 66 mph in the Latrobe area. Sunday advisory the storm's core was about 375 miles north of Cape Race, Newfoundland, moving northeast at 24 mph with maximum sustained winds of 60 mph. Parts of Southcentral Alaska could see hurricane-force wind gusts of up to 100 mph and heavy rain starting Tuesday night from a Bering Sea storm system, the National Weather Service reported. 44704 meters per second. The wind map is a personal art project, not associated with any company. This is very helpful when you quickly need to see what one measure equates to in other units. 48979591 speed of sound (at std. THE BEAUFORT WIND SCALE One of the first scales to estimate wind speeds and the effects was created by Britain's Admiral Sir Francis Beaufort (1774-1857). Hurricane Michael’s strongest winds were 155 mph, though as the storm came ashore, gusts were in the 104 and 129 range. Smoke rises vertically. Wednesday's 121. Help Hydraulic bar pressure to kg force conversion. Surface winds in excess of 58 mph are no longer occurring and storm has passed. A Wind Advisory means that wind speeds over 25 mph are expected or wind gusts over 40 mph. F = A x P x Cd. (One trick to remembering this is to think of the letter "m" in miles per hour as standing for "more. By comparison, a 7-foot prop on an efficient PM alternator made from scratch gives peaks of 50-60 amps in similar winds!. If your area has a high wind warning, here is what you should do:-- Damaging winds will likely occur across parts of the. PyramydAir Airgun Calculator. How many pounds-force in a newton: If F N = 1 then F lbf = 0. I've tried to verify all of the numbers, but I can't guarantee that they are 100% correct so I would have appreciated that you contacted me (in the highly unlikely event :) if you should find any errors. Return to Knots vs MPH lesson. 3: 9 kts 10 mph. Unfortunately, we may struggle with making sense out of wind direction data that is in degrees. Thus, a doubling in wind speed will much more than double the force produced by the wind speed. F (lbs/ft^2) = 0. A major hurricane has winds greater than 110 mph. Eh? Type a value in ONE of the fields below to see the equivalent speeds. Convert metric, imperial and SI units like volume, pressure, length, surface, area, temperature, weight, mass, energy, force. How to Convert Units of Force. Wind forecasts, wind maps and live weather reports for kite- and windsurfing, sailing and fishing Windfinder is loading Wind forecasts, wind speed, live weather and wind map for kitesurfing, windsurfing, sailing and fishing. The fastest wind speed ever recorded comes from a hurricane gust. The Italian physicist Galileo Galilei defined speed as the distance covered per unit of time. GALE force winds battered the coast of Wales yesterday with reports of 60mph gusts. The wind map is a personal art project, not associated with any company. 361794924 lbs/(mph) using the online calculator for metric conversions. The Generic Formula. Delmarva Power Initiates Multi-Year Wood-to-Steel Utility Pole Conversion Projects to Withstand Hurricane-Force Winds able to withstand up to 120 mph winds. Wind Chill temperature only will not cause water to freeze. He has no f'n idea what a hurricane is. 2256kg/m^3 So P = 1. Wind gusts over 60 mph ripped through the Baltimore region Friday, closing highway access in many areas due to accidents, high wind and felled trees, and causing more than a quarter million power. * Conversion is a basic mathematical calculation which does not consider environment and/or location. This is part of the aftermath. Not even close. To convert between G-unit (G) and Mile/hour Second you have to do the following: First divide 9. sustained winds of 75 for cat 1 hurricane. The ultimate design wind speed, V ult, in mph, for the determination of the wind loads shall be determined by Figures 1609. Knots is how the speed of aircraft and boats is measured. Hurricane force winds projected for early hours (2 am) of Monday, October 30 but I note that he also specifies Monday 10 am wind gusts up to 100 miles per hour in New Brunswick area. Wind Speed Conversion from Beaufort Scale Classic Sailing hopes you find our fact sheet helpful. There are many abbreviations for the unit kilometers per hour (kph, kmph, k. Weight Conversion. Gale-Force Winds To Hit Parts Of Maryland - Annapolis, MD - Winds of up to 55 mph are expected to hit Maryland overnight and much of Sunday; power outages are likely. Our conversions provide a quick and easy way to convert between Speed or Velocity units. Convert the wind speed into miles per hour, if they aren't already. Wind barely moves tree leaves. Estimate the upward 2163 the tolerance is +/-2%. Science & Nature 4. It is based on observation rather than accurate measurement. Storm Callum is set to hit the UK later this week, bringing heavy rain and gale-force winds up to 80mph, as the Met Office says there is a danger to life. From SI (meters per second or kilometres per hour) to Imperial (miles per hour or Knots) units or to the Beaufort or Hurricane scale. The following online calculator converts common wind speed given in common measurement units to Beaufort numbers. Tropical Storm Beryl formed Thursday in the Atlantic Ocean. GALE force winds battered the coast of Wales yesterday with reports of 60mph gusts. Camp Muir at Mount Rainier National Park recorded peak winds at 84 mph. 13, 2005, a barrage of wind traveling at 63 miles per hour hit Leland and Empire, but not Glen Arbor. wind speed conversion chart knots= mph mph= knots 5 6 5 4 10 12 10 9 15 17 15 13 20 23 20 17 25 29 25 22 30 35 30 26 35 40 35 30 40 46 40 35 45 52 45 39 50 58 50 43 55 63 55 48 60 69 60 52 65 75 65 56 70 81 70 61 75 86 75 65 80 92 80 69 85 98 85 74 90 104 90 78 95 109 95 82 100 115 100 87 105 121 105 91 110 127 110 96 115 132 115 120 138. Its full name is the Beaufort Wind Force Scale, although it is a measure of wind. Calculate the wind's force by squaring the wind speed in miles per hour and multiplying the answer by 0. Strong winds could force firefighting helicopters to be. The BFE is 9 feet and existing ground eleva-tion is approximately 7 feet. Wind Conversion. Here's something to think about as a pitcher. Buildings, Windmills, ect sic--I believe, and so assert and retort; that a direct and constant that will convert wind velocity to applied force, can not be made without considering the 'area', in square proportions, of the structure under analysis. In many areas in the US, the average windspeed is around 10 mph. 0639115 psi What the computation does confirm is that at the speed of road vehicles, the force of the wind on a large exposed surface can be very great, but the pressure per unit area is small when compared to atmospheric pressure. 44704 meters per second. Grandfather Mountain: 120 mph winds set new record on iconic WNC peak. BRECKENRIDGE, Colo. For results, click Convert or press Enter or Tab. Wind speed and wind direction are two separate factors. How Strong is 60 mph Wind? The scale uses a 1 through 12 rating for wind ranging from "Calm" to "Hurricane" force. Nowadays it is widely accepted that WMO Code. 60-MPH wind, hail, buffet Patriot Express players. Transferring this to American unit’s yields: q= (V^2)/383. An Office 365 subscription offers an ad-free interface, custom domains, enhanced security options, the full desktop version of Office, and 1 TB of cloud storage. Air density is 1. That’s strong enough to be called a tornado. Its full name is the Beaufort wind force scale. What's a sure-fire way of securing a tent in gale-force winds? Is there a proper way to save your tent, short of taking it down, in winds over 50 mph? I had one fail, and I wonder if it was. e-mail; 734. Gusts as high as a category 1 hurricane along with dry conditions have prompted more red flag warnings. This program converts English and American measures to metric units. There are many abbreviations for the unit kilometers per hour (kph, kmph, k. Estimating Wind Speeds with Visual Clues Beaufort number Description Speed Visual Clues and Damage Effects 0 Calm Calm Calm wind. Unit Converter is online units conversion tool that allows you to convert units of measure between various measurement systems e. Chance of precipitation is 90%. Hydropower. Extremely high winds and humans don't mix well, but a bold weather observer steps into a tempest-level gust to battle the. F w = p d A = 1/2 ρ v 2 A (1) where. Most of Connecticut is under a High Wind Warning until 6 p. In effect there is a drag coefficient involved, not to mention density of the medium. So you can save the time and energy you would lose with doing repetitive operations. There are twelve levels, plus 0 for "no wind". ** This empirical relation between windforce, estimated on the Beaufort-scale, and the windspeed is based on the 10 minute average of the windspeed. The equation relating the wind velocities (V in mph) with the F scale (F) is V = 14. Odd question on milage and wind. Force experienced by one kilogram mass at 1G (9. For most practical intents, multiplying by 1. This wasn't the worst of it. For most pleasure sailors a 'fresh breeze' (Force 5) will prove demanding especially if the wind is against tide! www. , winds were near tropical-storm force at Dulles Airport, sustained at 37 mph, and gusting to 53 mph. The FT Technologies Wind Speed Converter allows you to convert between different wind speed measurement scales. Often all wind speeds faster than 11 Beaufort are grouped together to 12 Beaufort. For a reasonable range of winds, the average effiency is around 20%,. org/wiki/December_2007_Pacific_Northwe. The Sonoma County Sheriff’s Office tweeted Sunday that it’s the largest evacuation that any member of the force can remember. (for conversion in the direction of the arrow, multiply by the number provided) miles per hour per second (mphps) Force = mass acceleration 1 N = 1 kg m/s2. fort Wind Scale force number, wind speed range in miles per hour, a mid-point wind pressure value in pounds per square feet, wind force classification description, and potential tree impacts. a design wind speed of 170 mph while Risk Categories III and IV have a design wind speed of 180 mph. The air pressure on Mars is about 1% that of Earth's at sea level. Metal Roofing Options. 6 where q is the pressure in PSF and V is the velocity in mph. How is wind helpful to Earth? Wind is the fastest growing source of electricity in the world. After weeks of fighting blazes, fire officials braced for this bout of Santa Ana winds of 50 mph to 70 mph, with gusts up to 80. 32 - 38 mph 14-16. Re: Wind - MPH to PSI ?? by NormD on 10/06/05 at 17:28:29 You really can't, at least not by multiplying by a conversion factor, like MPH to km/hour. It is the most widely used system to measure wind speed today. With some paper cups, a. The air on a windy day feels colder than that indicated by a thermometer. A text only version of answer is also available. This force is required to change a 5 1/8th ounce ball from a speed of 90 mph to a speed of 110 mph, this distorts the baseball to half its original diameter and the bat is compressed one fiftieth of it's size. Before using any of the provided tools or data you must check with a competent authority to validate its correctness. In the summer of 1805 Beaufort was appointed to the command of the Woolwich, a 44-gun man-of-war. This script creates a wind speed converter that can convert six different speed units at one time. People in western Mexico in the path of Hurricane Patricia are in for a terrifying night of ferocious wind. A private weather station at Bald Point on Apalachee Bay, Florida, recently measured a sustained wind of 37 mph (59 km/h) and a gust to 56 mph (91 km/ h). The wind blows the blades of the turbine, which are attached to a rotor. A major hurricane has winds greater than 110 mph. Tornadoes can reach 300 mph. calculators, engineering calculators Enter value, select unit and click on calculate. But that begs the question: just how much wind does a wind farm, or at least a wind turbine, need? It shouldn't surprise you to find out that, just as the wind constantly changes, wind turbines are built to operate within a wide range of wind specifications, so the answer varies. Calculate the wind's force by squaring the wind speed in miles per hour and multiplying the answer by 0. Calculator Use. 6 where q is the pressure in PSF and V is the velocity in mph. To calculate wind load using the generic formula, use F = A × P × Cd, where F is the force or wind load, A is the projected area of the object, P is the wind pressure, and Cd is the drag coefficient. This wind speed is based on local wind climate with a nominal annual probability of 0. The World Meteorological Organization (WMO) still uses the wind speed equivalents, or WMO Code 1100, of the Beaufort scale adopted in 1946, for operational use (OMI-CMI, 1947). The three major forces that must be overcome to maintain a certain speed are air resistance, rolling resistance, and gravity. A wind gauge in Lewes, Delaware, only a ferry's ride away from Cape May, had sustained winds of 39 mph at 11 a. The cyclist will feel an effective wind yaw angle of 3 degrees. For example, suppose the wind speed is 15 mph and produces 3,375 units of power (15^3). With an understanding that wind force is a function of. 5 m/s) to 36 mph (16 m/s). A 45 mph wind would produce a 90 lb force, and a 60 mph wind would produce a 160 lb force. Filling in the formula force equals air mass (A m) times wind speed squared (F = A m xa 2) gives this calculation: F = (1 m 2) × [1. World Record Wind. (One trick to remembering this is to think of the letter "m" in miles per hour as standing for "more. The power output of a wind turbine is directly related to the area swept by the blades. $\endgroup$ – Rick Dec 9 '14 at 14:42. ) use this converter speed of sound (at std. He entered the Royal Navy at the age of 13 and was a midshipman aboard the Aquilon. WIND CHILL Wind increases the rate at which a body loses heat. In our tests, DanB's PM induction motor conversion windmill peaks at around 25 amps in 30 mph winds, with a 7-foot diameter prop. Feet per Minute. Next type the circular duct dimensions of r = 2 in. At higher wind speeds, the wind-chill temperature is lower than the air temperature and measures the increased cold stress and discomfort associated with wind. Wind speeds are given in both km/h and also knots (a unit of measurement for wind speed, often used by mariners). msn back to msn home news. While this page was created to help gun enthusiast this conversion utility works. Winds could gust as high as 21 mph. With this simple unit conversion tool, you can quickly convert any wind speed from an initial unit (miles per hour, feet per second, meters per second, knots, and kilometers per hour) to all other units listed. Modern scale. WIND CHILL Wind increases the rate at which a body loses heat. the elusive nautical mile) with our calculator. Wind Chill is the temperature that it "feels like" based on actual temperature and wind speed. There are a number of safety systems that can turn off a turbine if wind speeds threaten the structure, including a remarkably simple vibration sensor used in some turbines that basically consists of a metal ball attached to a chain, poised on a tiny pedestal. A tail wind is blowing in the direction 400 west of north at 40 mph. Pedram Javaheri has the latest. The HWN provides up to date tropical weather information for the Atlantic and Eastern Pacific. Speed Units Converter is online conversion calculator that allows you to convert units of speed between various measurement systems. range of the nine Wind Speed Classes of 70 Mph thru 150 Mph acting under normal conditions for a Wind Exposure Category "B", these forces are then applied to the face area of the fence panel assumed to be solid. The metric system measures the acceleration for 0 to 100 kilometers per hour (0 to 62 miles per hour). Then multiply the amount of Knot you want to convert to Mile/hour (mph), use the chart below to guide you. F w = p d A = 1/2 ρ v 2 A (1) where. Bookmark this page Hit CTRL+D and be sure to share with your friends. GAC Speed Converter. As a result different pieces of equipment are needed to measure these different characteristics. 6 is accurate enough. NOAA/ National Weather Service National Centers for Environmental Prediction Weather Prediction Center 5830 University Research Court College Park, Maryland 20740 Weather Prediction Center Web Team. Packing 120 mph winds, Hurricane Fabian pounded Bermuda Friday, causing buildings to sway amid the constant gusts of wind, toppling trees and felling power lines across the usually tranquil islands. ) to mach. It is based on observation rather than accurate measurement. With this simple unit conversion tool, you can quickly convert any wind speed from an initial unit (miles per hour, feet per second, meters per second, knots, and kilometers per hour) to all other units listed. The National Weather Service says wind gusted up to 120 mph in the Wyoming Range early. Convert speed units. Hurricane winds can rip siding off from buildings. Force of wind blowing against vertical structure Wind blowing against a wall or a tree evidently exerts a force. With that premise, the equation you are using is close to the basic equation used to convert wind speed to wind pressure as given in many texts and in ASCE 7, "Minimum Design Loads for Buildings and Structures". One mph is equal to 4. We launched the first version of our online units converter in 1995. Online converter for units of force. Wind forecasts, wind maps and live weather reports for kite- and windsurfing, sailing and fishing Windfinder is loading Wind forecasts, wind speed, live weather and wind map for kitesurfing, windsurfing, sailing and fishing. The following formula illustrates factors that are important to the performance of a wind turbine. If this is more than the weight of the RV it will likely flip over. Note: Beaufort cannot be entered because it would result in a range of numbers. Problem: How to convert from wind loads from MPH to PSF in AutoPIPE? Solution: Convert MPH to PSF: (MPH ^2) *0. Small wind turbines generally operate between force 3 and force 7 on the Beaufort scale with the rated capacity commonly being defined at force 6 with a wind speed of 12 m/s. The equations show that changing the characteristics of the trees had meager effects: Doubling the size of a tree only increases the required wind speed by 9%; likewise, using wood more resistant. For Example, Speed of 100 mph gives 26. Current weather observations and forecast. With max winds of 190 mph, Hurricane Allen holds the title as the storm with the highest wind speeds in the Gulf of Mexico. This is the conversion rate, since there are about 0. Homesteading Off The Grid 4,006,602 views. All wind load calculator programs give the building permit department required Components and Cladding (C&C) wind load pressures according to Methods 1 & 2 of ASCE 7. Wind Pressure and Force Exerted on Vertical Wall Equations. Both miles per hour and knots is a speed which is the number of units of distance that is covered for a certain amount of time. 98 mph in Bellingham! Dorian slams Bahamas with record. The lake in question is Lake Greenbrier. Discover a universal assistant for all of your unit conversion needs - download the free demo version right away!. A high wind. To begin, we can either convert rates to miles per hour, or we can convert the time to seconds. Next type the circular duct dimensions of r = 2 in. , about the same time an 81 mph wind gust. metric, imperial, US. To convert between miles per hour (mph) and knots (kts):. They would. Its full name is the Beaufort Wind Force Scale, although it is a measure of wind. ), but "km/h" is the SI unit symbol. ) conversion 1 speed of light is equal 874030. At force 3, wind speeds range from 3. How fast is 155 miles per hour? What is 155 miles per hour in kilometers per hour? This simple calculator will allow you to easily convert 155 mph to km/h. For example,Volume is a physical quantity and unit to measure it is liters or milliliters. e-mail; 734. 00256(V^2), where p=pressure in psf V=wind velocity in mph. Boston Logan International Airport recorded 70 mph on Thursday, while winds hit 125 mph at Mount Washington in New Hampshire. So the speed of 1 knot is slightly faster than 1 mile per hour. The amount of pressure exerted by wind on an object depends on the wind's speed and density, and the object's shape. If a wind blowing at 50 miles per hour exerts a force of 75 pounds on a surface of 500 ft squared, how much force will a wind of 75 mph place on a surface of 10 ft squared. A force 12. A wind gauge in Lewes, Delaware, only a ferry's ride away from Cape May, had sustained winds of 39 mph at 11 a. Civil Engineering and Design Resources. Useful Websites related to Power Generation. 87 At 60 mph the theoretical dynamic pressure will be 0. Hint: 5280 feet per mile and 3600 seconds per hour. 8 at 130 mph. For results, click Convert or press Enter or Tab. One mph is equal to 4. Rain will be accompanied by strong winds with gusts of 50 mph possible inland and perhaps 60 mph around some coasts. the elusive nautical mile) with our calculator. BOULDER — In the span of roughly a month, Mel Tucker's Colorado defense will have seen both ends of the spectrum of offenses — from Air Force to Air Raid. Hurricane-force wind definition, a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 m/sec): the strongest of the winds. Is there a simple calculation that can be used? Or is there a table that can be used I would like to know how much force is cause by a wind speed of 125mph on a flat surface. Wind Chill is a mysterious and often misunderstood phenomenon. A yellow warning for wind for much of Scotland remains in place until midnight. Wind Speed Converter. 3 seconds, which is less than 2. The right call that day. The rapid variation of output with wind speed is one of the difficulties in applying wind power. To convert between miles per hour (mph) and knots (kts):. wind speed1 100 mph 78 mph 110 mph 85 mph 120 mph 93 mph 130 mph 101 mph 140 mph 108 mph 150 mph 116 mph 160 mph 124 mph 170 mph 132 mph 180 mph 139 mph 190 mph 147 mph 200 mph 155 mph 1 Nominal design wind speed determined from IBC 2012, Section 1609. The lake in question is Lake Greenbrier. Coroner Karl Addis said an autopsy revealed that the child died from blunt force head trauma, and said his manner of death has been ruled a homicide. A high wind. 5148 m/s 1 m/s = 3. Can't find something? Try searching. To convert between Knot and Mile/hour (mph) you have to do the following: First divide 1852/3600 / (0. That reduced the size of the main by about a 1/3. The new wind chill formula is now being used in Canada and the United States. Who is at risk from damaging winds? Since most thunderstorms produce some straight-line winds as a result of outflow generated by the thunderstorm downdraft, anyone living in thunderstorm-prone areas of the world is at risk for experiencing this. 3 mph 200 year return period basic wind speed = 90 mph x 1. In fact it's even older. The National Weather Service says west winds will be blowing 20 to 30 mph with gusts up to 65 mph. (One trick to remembering this is to think of the letter "m" in miles per hour as standing for "more. Wind conditions are described as "strong" and whole. Other common force units are dyne, pound force and kilogram force. The equation assumes the direction of wind is perpendicular to the window and there are no effects from surrounding terrain or the shape of the building in which it is installed. Hurricane-force wind definition, a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 m/sec): the strongest of the winds. The cyclist will feel an effective wind yaw angle of 3 degrees. 3 mph, 160 bpm is 4. Wind speed, or wind velocity, is a fundamental atmospheric rate. Positive (+) pressures act inward and Negative (-) pressures act outward on the window. Wind speed units & wind directions Being able to quicky convert wind speed values from units like knots, beaufort, m/s and km/h to another is quite helpful when you're in a pinch. Tyndall Air Force Base, which got the western eyewall winds of Michael, reported sustained winds of 86 mph, gusting to 129 mph, at 12:19 EDT, five minutes before the station stopped sending data. Coroner Karl Addis said an autopsy revealed that the child died from blunt force head trauma, and said his manner of death has been ruled a homicide. 174 feet per sec^2?) If the units are feet per second^2, then you should be able to use very simple math to convert to miles per hour. Specifically, the new WCT index: Calculates wind speed at an average height of five feet (typical height of an adult human face) based on readings from the national standard height of 33 feet (typical height of an anemometer). Note that the energy produced is proportional to the cube of wind speed --having enough average wind speed is everything in wind turbines. Boston Logan International Airport recorded 70 mph on Thursday, while winds hit 125 mph at Mount Washington in New Hampshire. A tropical-storm force wind gust of 47 mph has just been reported at Juno Beach Pier. How many pounds-force are in 1 newton? The answer is: 1 N equals 0. 174 05 ft/s²). Reply Reply Author. To convert between Knot and Mile/hour (mph) you have to do the following: First divide 1852/3600 / (0. KNOT TO MILE/HOUR (MPH) (kn TO mph) CHART. where v is wind speed and B is Beaufort scale number. Hurricane winds can rip siding off from buildings. The National Weather Service says wind gusts topped 90 mph. Since 1805, the Beaufort Scale has been adjusted to be used over land as well. Instructions: Use decimal inches, face dimensions, and nominal opening size for butted application. Air density is 1. F w = p d A = 1/2 ρ v 2 A (1) where. Our free Wind Speed Converter allows you to quickly convert between different wind-speed measurement units (knots, miles per hour, kilometers per hour, meters per second, Beaufort) GoodCalculators.