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Red flag warning

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avatar Red flag warning
September 09, 2011 08:34PM
Red flag warning
Urgent - fire weather message
National weather service hanford ca
1247 pm pdt fri sep 9 2011

...Dry thunderstorms possible friday afternoon through saturday

.An upper level low pressure area will move over central
California this afternoon and will remain over the area through
The weekend. The flow aloft will turn to the east and northeast
This afternoon. This will allow thunderstorms to develop over the
Sierra to drift westward over the foothills this afternoon and

As the thunderstorms drift west toward the lower elevations...
Much of the rainfall may evaporate before reaching the ground.
This could result in scattered dry lightning strikes below
5000 feet.

The threat of dry thunderstorms will continue over the lower
Elevations of sierra nevada and the foothills and are also
Possible over the mountains of kern county saturday and saturday
Night. Thunderstorms are expected to be wetter on sunday.

Mariposa/madera and fresno county foothills-
Tulare county foothills-
Sierra nevada from yosemite to kings canyon national park-
Tulare county mountains-
1247 pm pdt fri sep 9 2011

...Red flag warning now in effect until midnight pdt saturday
Night for dry lightning and gusty outflow winds for the southern
Sierra nevada below 5000 feet...

The red flag warning for dry lightning and gusty outflow winds is
Now in effect until midnight pdt saturday night.

* affected area...Sierra nevada zones 293...294...296...And 297
Below 5000 feet.

* timing...Thunderstorms developing over the sierra nevada will
Spread into the lower elevations this afternoon and tonight.
Thunderstorms will continue over these same areas saturday
Through saturday night. The storms are expected to be mainly dry
Below 5000 feet.

* outflow winds...Strong...Gusty and erratic winds are possible
In and near thunderstorms.

* impacts...Very dry fuels...Scattered dry lightning strikes and
Locally gusty outflow winds may combine to create a hazardous
Fire environment near and below 5000 feet.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
Are either occurring now...Or will shortly. Please advise the
Appropriate officials or fire crews in the field of this red flag


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