Weather Alert in Illinois
Red Flag Warning issued February 18 at 9:03AM CST until February 18 at 8:00PM CST by NWS Chicago IL
AREAS AFFECTED: Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane; La Salle; Kendall; Grundy; Livingston
DESCRIPTION: ...RED FLAG WARNING EXPANDED TO INCLUDE CHICAGO METRO... Conditions will turn very dry and windy this afternoon, making conditions supportive of brush fire spread. Even with rainfall last night generally 0.05 to 0.15 of an inch across northeastern Illinois, the combination of warm, dry, and windy conditions will cause fine fuels to dry out by early afternoon. As a result, the Red Flag Warning was expanded to include Cook, DuPage, Will, Kankakee, and Lake (IL) Counties until 8 PM this evening. * Affected Area...Winnebago, Boone, McHenry, Ogle, Lee, De Kalb, Kane, La Salle, Kendall, Grundy and Livingston. * Timing...Until 8 PM CST this evening. * Winds...Southwest 20 to 30 mph with gusts up to 50 mph. * Relative Humidity...As low as 15 to 20 percent. * Impacts...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
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 can contribute to extreme fire behavior.
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Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
Weather Topic: What is Fog?
Home - Education - Cloud Types - Fog
Next Topic: Fractus Clouds
Fog is technically a type of stratus cloud, which lies along the
ground and obscures visibility.
It is usually created when humidity in the air condenses into tiny water droplets.
Because of this, some places are more prone to foggy weather, such as regions
close to a body of water.
Fog is similar to mist; both are the appearance of water droplets suspended in
the air, but fog is the term applied to the condition when visibility is less than 1 km.
Next Topic: Fractus Clouds
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