Weather Alert in Florida
Fire Weather Watch issued February 21 at 1:10PM EST until February 23 at 7:00PM EST by NWS Jacksonville FL
AREAS AFFECTED: Suwannee; Baker; Inland Nassau; Union; Bradford; Gilchrist; Inland Flagler; Eastern Hamilton; Coastal Nassau; Coastal Duval; Eastern Clay; Eastern Alachua; Eastern Putnam; Coastal Flagler; Eastern Marion; Western Hamilton; Trout River; Western Clay; Northeast Coastal St. Johns; Western Alachua; Western Putnam; Central Marion; Northern Columbia; South Central Duval; Southeast Coastal St. Johns; Western Marion; Southeastern Columbia; Western Duval; Northern Inland St. Johns; Southwestern Columbia; Southern Inland St. Johns; Western St. Johns; Echols; Clinch; Northeastern Charlton; Southern Ware; Western Charlton
DESCRIPTION: ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING FOR LOW HUMIDITY AND STRONG NORTHWESTERLY WINDS FOR SOUTHEAST GEORGIA AND NORTHEAST FLORIDA... The National Weather Service in Jacksonville has issued a Red Flag Warning for critically low humidity and strong northwesterly winds, which is in effect from 1 PM to 9 PM EST Sunday. A Fire Weather Watch has also been issued. This Fire Weather Watch for an additional period of critical fire weather conditions and in effect from Monday afternoon through Monday evening. * AFFECTED AREA...In Florida, Suwannee, Baker, Inland Nassau, Union, Bradford, Gilchrist, Inland Flagler, Eastern Hamilton, Coastal Nassau, Coastal Duval, Eastern Clay, Eastern Alachua, Eastern Putnam, Coastal Flagler, Eastern Marion, Western Hamilton, Trout River, Western Clay, Northeast Coastal St. Johns, Western Alachua, Western Putnam, Central Marion, Northern Columbia, South Central Duval, Southeast Coastal St. Johns, Western Marion, Southeastern Columbia, Western Duval, Northern Inland St. Johns, Southwestern Columbia, Southern Inland St. Johns and Western St. Johns. In Georgia, Echols, Clinch, Northeastern Charlton, Southern Ware and Western Charlton. * TIMING...1 PM to 9 PM. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 24 percent. * TEMPERATURES...Up to 69. * IMPACTS...Ongoing wildfires will become difficult to contain and newly ignited fires may exhibit erratic fire behavior. Rapid rates of wildfire spread is expected.
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. 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 is Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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