Category Archives: Weather Glossary
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How is wind chill calculated (wind chill formula)
The wind chill temperature is calculated using the following formula: Windchill (F) = 35.74 + 0.6215T - 35.75(V^0.16) + 0.4275T(V^0.16) Where: T = Air Temperature (F) V = Wind Speed (mph) ^ = raised to a power (exponential) More about…
What is Hypothermia?
Hypothermia occurs when body temperature falls below 95 degrees Fahrenheit. Visible warning signs include uncontrollable shivering, memory loss, disorientation, incoherence, slurred speech, drowsiness, and exhaustion. The U.S. governments Occupational Safety & Health Administration (OSHA) recommended steps for a person suffering…
What is frostbite?
Frostbite is freezing of the skin and underlying tissues. The lower the temperature, the quicker frostbite will occur. Frostbite typically affects the extremities, particularly the feet, toes, hands, fingers, ear lobes, or tip of the nose. The U.S. government's Occupational…
Criteria for High Wind Warning
A High Wind Warning is sustained surface winds exceeding 40 mph (≥35 kts) for at least 1 hour; or any gusts exceeding 58 mph (≥50 kts) , predicted or occurring for an unspecified period of time. More Weather Glossary Terms:…
Criteria for High Wind Advisory
A High Wind Advisory is sustained surface winds 31-39 mph (27-34 kts) for at least 1 hour; or any gusts to 46-57 mph (40-49 kts), predicted or occurring for an unspecified period of time. More Weather Glossary Terms: High Wind Advisory…
Glossary of Weather Terms
Jump to Terms beginning with the letter: A | B | C | D | E | F | G | H | I | J | K | L | M N | O | P | Q |…
Criteria For a Hurricane Warning
The National Weather Service (NWS) is the official U.S. government agency charged with issuing weather watches, warnings, and advisories and is the source used by iAlert.com. Below is the criteria used by NWS forecasters when issuing a hurricane watch or…
Criteria For a Tropical Storm Warning
The National Weather Service (NWS) is the official U.S. government agency charged with issuing weather watches, warnings, and advisories and is the source used by iAlert.com. Below is the criteria used by NWS forecasters when issuing a tropical storm watch…
Criteria for a flood warning and flash flood warning
The National Weather Service (NWS) is the official U.S. government agency charged with issuing weather watches, warnings, and advisories and is the source used by iAlert.com. Below is the criteria for a flooding used by NWS forecasters when issuing flood…
