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Radar valid at 500 pm PDT, Jul 19th 2021

alert legend

...Dry lightning potential Sunday into Monday... .Upper level moisture will increase over the region Sunday morning through Monday morning from the south. The upper level moisture will accompany upper level instability increasing chances for thunderstorm activity. Thunderstorms will be a mix of dry and wet, but given how dry the fuels are any lightning strikes will be problematic. The threat for thunderstorms diminishes Monday afternoon as the moisture moves northward.

CAZ517-518-180500-
/O.UPG.KMTR.FW.A.0002.210718T1800Z-210719T1800Z/
/O.NEW.KMTR.FW.W.0003.210718T1800Z-210720T0000Z/
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
147 PM PDT Sat Jul 17 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM SUNDAY TO 5 PM PDT
MONDAY FOR DRY LIGHTNING FOR HIGHER ELEVATIONS OF
FIRE WEATHER ZONE 517 AND 518...

The National Weather Service in San Francisco has issued a Red
Flag Warning for dry lightning, which is in effect from 11 AM
Sunday to 5 PM PDT Monday. The Fire Weather Watch is no longer in
effect.

* AFFECTED AREA...Fire Weather Zone 517 Santa Lucia Mountains
and Los Padres National Forest and Fire Weather Zone 518
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park.

* WIND...Given the potentially dry nature of thunderstorms gusty
and erratic winds will be possible with developed storms.

* TIMING...Thunderstorm threat most likely Sunday afternoon
through early Monday afternoon.

* LIGHTNING...Isolated to scattered dry thunderstorms will be
possible Sunday afternoon through early Monday afternoon.

* IMPACTS...Given the dry fuels over the higher elevations, any
cloud to ground lightning strikes have the potential of
starting new wildfires.

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 can
contribute to extreme fire behavior.

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