Land Management Forecasts
Issued by NWS San Francisco Bay Area, CA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
906
FNUS86 KMTR 152154
FWLMTR

ECCDA Discussions
National Weather Service SAN FRANCISCO BAY AREA
254 PM PDT Sun Jun 15 2025

#####################################################################
##                                                                 ##
##            Discussions from the latest FWF below                ##
##                                                                 ##
#####################################################################

...Discussion from SFOFWFMTR...

Dry air with some moderate wind continues above the marine layer,
with RH as low as 10-20% at some inland sites above 2,000 feet.
Despite the dry air aloft, the wind direction remains onshore
through the week, preventing critical fire weather  conditions. A
small disturbance may deepen the marine layer a bit on Monday before
weak ridging returns. A more robust system will bring strong onshore
winds to the coast next weekend.


...Discussion from SFOFWFEKA...

Warmer inland temperatures today. An approaching  shortwave trough
is bringing some weak elevated instability and  moisture this
afternoon. Moisture is lacking, but a low chance (up to 5%) exits
for isolated dry thunderstorms this afternoon and  evening for
mainly Humboldt and Del Norte counties as this  feature interacts
with the higher terrain. Colder cloud tops and  a cumulus field are
observed on satellite over Humboldt and Del  Norte counties this
afternoon. Trinity County has a brief chance  this afternoon and a
second chance in far NE portions of the  county Monday afternoon for
an isolated thunderstorm as the trough axis passes. Northerly winds
are increasing in southern Mendocino and Lake County this afternoon.
These winds will further increase Monday afternoon over the interior
ridges, mainly in southern  Mendocino and Lake counties. These
mainly diurnally- driven  afternoon winds will trend slightly lower
Tuesday, but will  increase again late next week with a stronger
trough and front.  Minimum RH values will trend lower early to mid
next week, with  some values in the mid to upper teens Wednesday.
Locally elevated  to some brief critical fire weather conditions
will develop with  these afternoon wind pulses and lowering RH.


#####################################################################
##                                                                 ##
##       Complete a discussion for each ECCDA segment below        ##
##      When done click transmit, product sent as KMTRFWLMTR       ##
##                                                                 ##
#####################################################################

ECC010-161000-
St Helena ECC Dispatch-
DISCUSSION FOR Marin and Sonoma and Napa Counties
254 PM PDT Sun Jun 15 2025

Dry air with some moderate wind continues above the marine layer,
with RH as low as 10-20% at some inland sites above 2,000 feet.
Despite the dry air aloft, the wind direction remains onshore
through the week, preventing critical fire weather  conditions. A
small disturbance may deepen the marine layer a bit on Monday before
weak ridging returns. A more robust system will bring strong onshore
winds to the coast next weekend.

$$

ECC014-161000-
Morgan Hill ECC Dispatch-
DISCUSSION FOR Alameda and Contra Costa and Santa Clara Counties
254 PM PDT Sun Jun 15 2025

Dry air with some moderate wind continues above the marine layer,
with RH as low as 10-20% at some inland sites above 2,000 feet.
Despite the dry air aloft, the wind direction remains onshore
through the week, preventing critical fire weather  conditions. A
small disturbance may deepen the marine layer a bit on Monday before
weak ridging returns. A more robust system will bring strong onshore
winds to the coast next weekend.

$$

ECC013-161000-
Felton ECC Dispatch-
DISCUSSION FOR Santa Cruz and San Mateo Counties
254 PM PDT Sun Jun 15 2025

Dry air with some moderate wind continues above the marine layer,
with RH as low as 10-20% at some inland sites above 2,000 feet.
Despite the dry air aloft, the wind direction remains onshore
through the week, preventing critical fire weather  conditions. A
small disturbance may deepen the marine layer a bit on Monday before
weak ridging returns. A more robust system will bring strong onshore
winds to the coast next weekend.

$$

ECC018-161000-
Monterey ECC Dispatch-
DISCUSSION FOR Monterey and San Benito County
254 PM PDT Sun Jun 15 2025

Dry air with some moderate wind continues above the marine layer,
with RH as low as 10-20% at some inland sites above 2,000 feet.
Despite the dry air aloft, the wind direction remains onshore
through the week, preventing critical fire weather  conditions. A
small disturbance may deepen the marine layer a bit on Monday before
weak ridging returns. A more robust system will bring strong onshore
winds to the coast next weekend.

$$