Weather Alert in California
Red Flag Warning issued June 21 at 9:44AM PDT until June 22 at 5:00AM PDT by NWS Los Angeles/Oxnard CA
AREAS AFFECTED: Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western Antelope Valley Foothills; Antelope Valley
DESCRIPTION: ...RED FLAG WARNING IN EFFECT FROM 1 PM TODAY TO 5 AM PDT SUNDAY FOR STRONG TO DAMAGING NORTHWEST TO NORTH WINDS AND LOW RELATIVE HUMIDITY FOR THE I-5 CORRIDOR, SANTA BARBARA COUNTY INTERIOR MOUNTAINS, VENTURA COUNTY MOUNTAINS, AND ANTELOPE VALLEY INCLUDING WESTERN FOOTHILLS... ...FIRE WEATHER WATCH CANCELLED FOR EASTERN SANTA YNEZ MOUNTAINS BUT BRIEF CRITICAL FIRE CONDITIONS POSSIBLE TONIGHT... .An unseasonably strong upper level trough of low pressure will move through the region today through tonight. Strong and locally damaging wind gusts of 50 to 65 mph are expected to be most focused this afternoon into tonight across the Santa Barbara County interior mountains, Ventura County mountains, I-5 corridor, and Antelope Valley including the western foothills. These stronger winds combined with humidities lowering to between 10 and 25 percent will likely bring critical fire weather conditions to these areas, resulting in the Red Flag Warning valid this afternoon into tonight. While locally stronger winds are still expected to surface across portions of the eastern Santa Ynez range tonight, it no longer appears they will have a sufficient duration of strong wind/low humidity overlap, resulting in the cancellation of the Fire Weather Watch for this area, and just including them with brief critical headlines. Areas in a Red Flag Warning this afternoon through tonight will have the highest risk for rapid fire spread and extreme fire behavior, with the threat of long range spotting. * WINDS...Northwest to north 25 to 40 mph with damaging gusts of 50 to 65 mph. * RELATIVE HUMIDITY...Areas of humidity 10 to 25 percent, gradually rising late tonight. * IMPACTS...If fire ignition occurs, conditions are favorable for extreme fire behavior, rapid fire growth, and long range spotting, which could threaten life and property.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information.
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Weather Topic: What is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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