Sunday, June 13, 2010

[californiadisasters] Red Flag Warning - East Bay Hills (6/12/10/PM)



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 AM PDT SUNDAY FOR
GUSTY OFFSHORE WINDS WITH LOW HUMIDITY...

* AFFECTED AREA: FIRE ZONE 511 EAST BAY HILLS AND DIABLO
RANGE...INCLUDING THE SANTA CLARA UNIT AND ELEVATIONS ABOVE
1000 FEET IN SANTA CLARA COUNTY.

* TIMING: GUSTY OFFSHORE FLOW WILL CONTINUE THROUGH EARLY
SUNDAY MORNING.

* WIND: NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH ARE FORECAST WITH
GUSTS UP TO 30 MPH OVERNIGHT.

* HUMIDITY: AFTER DAYTIME HUMIDITIES RANGING FROM 15 TO 20
PERCENT...NIGHTTIME HUMIDITIES WILL RANGE FROM 30 TO 50
PERCENT.

* IMPACTS: THE COMBINATION OF LOW RELATIVE HUMIDITIES AND GUSTY
OFFSHORE WINDS HAS CREATED CRITICAL FIRE WEATHER CONDITIONS...
ESPECIALLY AT ELEVATIONS BETWEEN 1000 TO 2000 FEET WHERE FUELS
ARE DRIEST. THE PERIOD OF STRONG WINDS AND LOW HUMIDITY HAS
COINCIDED WITH THE WARMEST WEEKEND SO FAR THIS SEASON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$
GUDGEL

HTTP://WEATHER.GOV/SANFRANCISCO


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