874 
WWUS86 KMTR 181245
RFWMTR

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Francisco CA
545 AM PDT Sun Jul 18 2021

...Dry lightning potential Sunday into Monday...

.Upper level moisture will increase over the region today 
into Monday from south to north. This 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.

CAZ517-518-182045-
/O.CON.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-
545 AM PDT Sun Jul 18 2021

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

* 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.

&&

$$

CAZ507-511-512-182045-
/O.CON.KMTR.FW.W.0003.210719T0000Z-210720T0000Z/
North Bay Mountains-East Bay Hills and the Diablo Range-
Santa Cruz Mountains-
545 AM PDT Sun Jul 18 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 PM PDT MONDAY FOR DRY LIGHTNING FOR HIGHER ELEVATIONS OF FIRE
WEATHER ZONES 507 511 AND 512...

* AFFECTED AREA...Fire Weather Zone 507 North Bay Mountains, 
  Fire Weather Zone 511 East Bay Hills and the Diablo Range and 
  Fire Weather Zone 512 Santa Cruz Mountains.

* 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 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.

&&

$$