A LOW PRESSURE SYSTEM WILL BRING STRONG WEST TO SOUTHWEST WINDS
TO THE MOJAVE DESERT THIS AFTERNOON EVENING. THESE WINDS WILL
COMBINE WITH LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER TO CREATE
CRITICAL FIRE WEATHER CONDITIONS. WINDY CONDITIONS AND LOW
RELATIVE HUMIDITY WILL PERSIST ACROSS NORTHWEST ARIZONA ON MONDAY.
AZZ101-CAZ228-229-NVZ466-100600-
/O.CON.KVEF.FW.W.0002.100509T2000Z-100510T0600Z/
LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-MOJAVE DESERT-
LOWER COLORADO RIVER VALLEY-LAKE MEAD NRA/COLORADO RIVER-NV SIDE-
643 AM PDT SUN MAY 9 2010 /643 AM MST SUN MAY 9 2010/
...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM PDT /1 PM MST/
THIS AFTERNOON TO 11 PM PDT /11 PM MST/ THIS EVENING BELOW
3000 FEET...
A RED FLAG WARNING BELOW 3000 FEET REMAINS IN EFFECT FROM 1 PM
PDT /1 PM MST/ THIS AFTERNOON TO 11 PM PDT /11 PM MST/ THIS
EVENING FOR SAN BERNARDINO COUNTY AND THE COLORADO RIVER VALLEY.
A PACIFIC LOW PRESSURE SYSTEM WILL BRING STRONG WEST TO SOUTHWEST
WINDS TO THE MOJAVE DESERT THIS AFTERNOON AND EVENING. RELATIVE
HUMIDITY VALUES BELOW 15 PERCENT ARE ALSO EXPECTED. THERE ARE MORE
SEASONAL GRASSES THAN NORMAL IN THE LOWER DESERTS DUE TO THE WET
WINTER...AND THESE SEASONAL GRASSES HAVE CURED...THUS FIRE DANGER
IS ALSO HIGH. THESE THREE FACTORS WILL COMBINE TO CREATE CRITICAL
FIRE WEATHER CONDITIONS THIS AFTERNOON AND EVENING. RELATIVE
HUMIDITY VALUES WILL BEGIN TO RECOVER BY LATE EVENING AND PERSIST
THROUGH MONDAY AS SURFACE DEWPOINTS INCREASE ACROSS THE HIGH
DESERT OF SAN BERNARDINO COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING OR ARE IMMINENT. A COMBINATION OF STRONG
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE
EXTREME FIRE GROWTH POTENTIAL.
&&
$$
PIERCE
URGENT - FIRE WEATHER MESSAGESource: http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=sgx&wwa=red%20flag%20warning
NATIONAL WEATHER SERVICE PHOENIX AZ
142 AM MST SUN MAY 9 2010
AZZ131>133-CAZ230>232-092300-
/O.CON.KPSR.FW.W.0005.100509T2000Z-100510T0600Z/
CALIFORNIA FIRE WEATHER ZONE 230
JOSHUA TREE NATIONAL PARK-
CALIFORNIA FIRE WEATHER ZONE 231
LOWER COLORADO RIVER VALLEY CA-
CALIFORNIA FIRE WEATHER ZONE 232
IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-
142 AM MST SUN MAY 9 2010 /142 AM PDT SUN MAY 9 2010/
...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM MST /1 PM PDT/
THIS AFTERNOON TO 11 PM MST /11 PM PDT/ THIS EVENING FOR FAR SOUTHEAST
CALIFORNIA...THE LOWER COLORADO RIVER VALLEY...AND SOUTHWEST AND
SOUTH-CENTRAL ARIZONA DUE TO STRONG SOUTHWEST TO WEST WINDS...LOW
RELATIVE HUMIDITY AND HIGH FIRE DANGER...
SOUTHWEST WINDS ARE EXPECTED TO STRENGTHEN THIS AFTERNOON AND
EVENING AS A LOW PRESSURE SYSTEM APPROACHES FROM THE WEST. SUSTAINED
25 TO 30 MPH WINDS...WITH PEAK GUSTS FROM 40 TO NEAR 50 MPH...ARE
ANTICIPATED OVER MUCH OF FAR SOUTHEAST CALIFORNIA AND SOUTHWEST AND
SOUTH-CENTRAL ARIZONA DURING THE LATE AFTERNOON AND EARLY EVENING
HOURS. THE STRONG WIND COMBINED WITH VERY LOW RELATIVE HUMIDITY AND
HIGH TO VERY HIGH FIRE DANGER WILL PRODUCE CRITICAL FIRE WEATHER
CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.
&&
$$
BRECKENRIDGE
--
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