Thursday, October 4, 2007

RED FLAG WARNING - IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-

[EDIS] Red flag warning in effect from 10 am mst /10 am pdt/ to 8 pm mst /8 pm pdt/ friday for southeast california and the lower colorado river valley due to strong gusty winds and low relative humidities IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-


THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM MST /10 AM PDT/ TO 8 PM MST /8 PM PDT/ FRIDAY. THE FIRE WEATHER WATCH THAT WAS ISSUED PREVIOUSLY IS NO LONGER IN EFFECT AND HAS BEEN UPGRADED TO A RED FLAG WARNING. A STRONG COLD UPPER LEVEL LOW PRESSURE SYSTEM WILL MOVE THROUGH SOUTHERN CALIFORNIA AND PORTIONS OF ARIZONA FRIDAY. THIS WILL CAUSE WINDS TO INCREASE TO 15 TO 30 MPH WITH GUSTS TO NEAR 40 MPH ACROSS PORTIONS OF SOUTHEAST CALIFORNIA AND THE LOWER COLORADO RIVER VALLEY. IN ADDITION...A VERY DRY AIRMASS WILL OVERSPREAD THE AREA... RESULTING IN MINIMUM RELATIVE HUMIDITY VALUES FALLING TO NEAR 10 PERCENT. THE STRONG WINDS AND LOW RELATIVE HUMIDITY VALUES WILL COMBINE TO CREATE HAZARDOUS FIRE WEATHER CONDITIONS DURING THE AFTERNOON AND EARLY EVENING HOURS ON FRIDAY.

Instruction:
PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING.

Area: ARIZONA FIRE WEATHER ZONE 131YUMA/MARTINEZ LAKE AND VICINITY/LOWER COLORADO RIVER VALLEY AZ-CALIFORNIA FIRE WEATHER ZONE 230JOSHUA TREE NATIONAL PARK-CALIFORNIA FIRE WEATHER ZONE 231LOWER COLORADO RIVER VALLEY CA-CALIFORNIA FIRE WEATHER ZONE 232IMPERIAL COUNTY AND EASTERN RIVERSIDE COUNTY-

Affected Counties or parts of: Riverside, Imperial,

Sent: 2007-10-04T15:18:56-07:00

From: NATIONAL WEATHER SERVICE PHOENIX AZ

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