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Friday, August 7, 2015

Northern California Fire Weather - Red Flag Warnings For Dry Lightning And Gusty Erratic Outflow Winds

CRITICAL FIRE WEATHER
CRITICAL FIRE WEATHER

Northern California Fire Weather Red Flag Warnings For Thunderstorms With Dry Lightning

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.


NWS California Fire Weather Map
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
326 AM PDT FRI AUG 7 2015

SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT
SHASTA-
326 AM PDT FRI AUG 7 2015

RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT
THIS EVENING..

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT
THIS EVENING.

* IMPACTS: LIGHTNING ACTIVITY WILL HAVE THE POTENTIAL TO PRODUCE
NUMEROUS FIRE STARTS THAT MAY OVERWHELM INITIAL ATTACK
RESOURCES. OUTFLOW WINDS MAY ALSO CREATE ERRATIC FIRE BEHAVIOR
AND THE POTENTIAL FOR RAPID FIRE GROWTH.

* AFFECTED AREA:
IN NORTHERN CA...FIRE WEATHER ZONE 284.

* COUNTIES AFFECTED: PORTIONS OF EASTERN SISKIYOU COUNTY.

* THUNDERSTORMS: ISOLATED THUNDERSTORM ACTIVITY JUST TO THE SOUTH
IS EXPECTED TO MOVE NORTH AND INCREASE TODAY. COVERAGE MAY
BECOME SCATTERED BY THIS AFTERNOON AND EVENING...BEFORE
DISSIPATING OVERNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS..

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

------------------------------------------------

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MEDFORD OR
326 AM PDT FRI AUG 7 2015

MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY-
KLAMATH BASIN AND THE FREMONT-WINEMA NATIONAL FOREST-
SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE
AND WESTERN HARNEY COUNTIES-
326 AM PDT FRI AUG 7 2015

RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT
THIS EVENING

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* IMPACTS: LIGHTNING ACTIVITY WILL HAVE THE POTENTIAL TO PRODUCE
NUMEROUS FIRE STARTS THAT MAY OVERWHELM INITIAL ATTACK
RESOURCES. OUTFLOW WINDS MAY ALSO CREATE ERRATIC FIRE BEHAVIOR
AND THE POTENTIAL FOR RAPID FIRE GROWTH.

* AFFECTED AREA:
IN NORTHERN CA FIRE ZONE...285.
IN SOUTH CENTRAL OR FIRE ZONES...624. ..625.

* COUNTIES AFFECTED:
IN NORTHERN CA...MODOC.
IN SOUTH CENTRAL OR...LAKE.

* THUNDERSTORMS: ISOLATED THUNDERSTORM ACTIVITY JUST TO THE SOUTH
IS EXPECTED TO MOVE NORTH AND INCREASE TODAY. COVERAGE MAY
BECOME SCATTERED BY THIS AFTERNOON AND EVENING...BEFORE
DISSIPATING OVERNIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS..

ABUNDANT LIGHTNING ON EXISTING VERY DRY FUELS COULD CAUSE
NUMEROUS NEW FIRE IGNITIONS. GUSTY AND ERRATIC OUTFLOW WINDS COULD
ALSO CREATE EXTREME FIRE GROWTH POTENTIAL.

------------------------------------

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
456 AM PDT FRI AUG 7 2015

THUNDERSTORMS EXPECTED ACROSS NORTHERN SIERRA..

A LOW PRESSURE SYSTEM MOVING EASTWARD OVER THE AREA WILL CONTINUE
TO BRING SHOWERS AND THUNDERSTORMS OVER THE NORTHERN SIERRA,
INCLUDING THE SIERRA FOOTHILLS.

SOUTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
CALAVERAS-TUOLUMNE UNIT-STANISLAUS NF WEST OF THE SIERRA CREST-
NORTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
NEVADA-YUBA-PLACER-AMADOR AND ELDORADO UNITS-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
456 AM PDT FRI AUG 7 2015

RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR THUNDERSTORMS WITH LITTLE RAINFALL FOR FIRE WEATHER
ZONES 220. ..221. .. 267 AND 269

* AFFECTED AREA...FIRE WEATHER ZONES 220. ..221. ..267 AND 269.

* WIND...EAST OR DOWNSLOPE UP TO 10 MPH TONIGHT BECOMING WEST OR
UPSLOPE UP TO 10 MPH THIS AFTERNOON.

* HUMIDITY...MODEST RECOVERY TONIGHT...AND AS LOW AS 20 PERCENT
THIS AFTERNOON.

* THUNDERSTORMS...ISOLATED/SCATTERED THUNDERSTORMS TODAY.

* IMPACTS...VERY DRY FUELS AND SPOTTY RAINFALL WILL INCREASE
THE THREAT OF FIRE STARTS. GUSTY AND ERRATIC THUNDERSTORM
WINDS COULD AFFECT FIRE BEHAVIOR.

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.

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****REMINDER**** Every fire has the ability to be catastrophic. The wildland fire management environment has profoundly changed. Growing numbers of communities, across the nation, are experiencing longer fire seasons; more frequent, bigger, and more severe, fires are a real threat. Be careful with all campfires and equipment.
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