Weather Alert in Oklahoma
Fire Weather Watch issued February 18 at 12:56AM CST until February 19 at 7:00PM CST by NWS Norman OK
AREAS AFFECTED: Harper; Woods; Alfalfa; Grant; Kay; Ellis; Woodward; Major; Garfield; Noble; Roger Mills; Dewey; Custer; Blaine; Kingfisher; Logan; Beckham; Washita; Caddo; Canadian; Oklahoma; Grady; McClain; Cleveland; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Hardeman; Foard; Wilbarger; Knox; Baylor
DESCRIPTION: ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... * WINDS...For today, southwest 15 to 25 mph with gusts up to 40 mph. For Thursday, west to northwest winds 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...For today, as low as 10 to 15 percent. For Thursday, as low as 7 to 12 percent. * TEMPERATURES...Up to 75 degrees today. 60 to 70 degrees on Thursday. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Near-Critical to Critical...2 to 3 (out of 5). FIRE ENVIRONMENT...6 to 7 (out of 10).
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures will contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
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