HomeMy WebLinkAboutFwd_ NWS Los Angeles_Oxnard Fire Weather Notes_ Monday Sep_ 5th - NO CALL TODAY (2).msgCAUTION: This message originated outside of our City of Diamond Bar network.
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Diana Manzano-Garcia, MPA
Disaster Management Area Coordinator
Area D Office of Disaster Management
500 W. Bonita Ave., Suite 5
San Dimas, CA 91773
Office: 909-394-3399
Cell: 626-201-0919
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From: David Gomberg - NOAA Federal <david.gomberg@noaa.gov>
Date: September 5, 2022 at 12:18:32 PM PDT
Subject: NWS Los Angeles/Oxnard Fire Weather Notes: Monday Sep. 5th - NO CALL TODAY
Greetings.
The National Weather Service in Oxnard will NOT be leading a local fire weather coordination call today. Here is an update of the key fire weather highlights for the upcoming week.
*** Dangerous long duration heat wave with potential for large vertical plume growth leading to elevated to brief critical fire weather conditions through at least Thursday***
***Slight chance of monsoonal thunderstorms through early evening across the mountains, Antelope Valley, and Cuyama Valley***
TODAY-THURSDAY: Significant long duration heat wave continues, with heat warnings extended through portions of the forecast area through Thursday.
*** EXCESSIVE HEAT WARNING FOR MOST VALLEYS, MOUNTAINS, AND INLAND PORTIONS OF LA COASTAL PLAIN THROUGH THURSDAY***
*** EXCESSIVE HEAT WARNING AND HEAT ADVISORY FOR REMAINING COASTAL AREAS THROUGH THIS EVENING ***
* Temperatures:
* Coastal Plain max 85-102 today, 80-98 Tuesday/Wednesday/Thursday
* Weak offshore flow this morning bringing another round of dangerous heat to coastal areas of LA/Ventura counties today.
* Valleys, Foothills, Lower Mountains, Deserts max 100-113 today, 98-110 Tuesday/Wednesday/Thursday
* Multiple daily record high temperatures likely
* Mixing heights 12,000-20,000 feet across interior each afternoon
* Mins 72-87 each night across valleys, foothills/lower mountains
* Hot temperatures will bring many beachgoers today
* Elevated surf across south facing beaches along with strong rip currents
* Humidity:
* Widespread minimums 8-25% away from coast through Thursday
* Lowest humidity across interior portions of San Luis Obispo County
* Poor overnight recoveries, especially foothills/mountains
* Winds:
* Increasing southeast winds tonight into Tuesday for higher mountains
* Gusts 25-40 mph across mountain ridgetops
* LAX-DAG gradient peaked at -1 mb this morning
* Thunderstorms:
* Slight chance (20 percent) of thunderstorms through early evening across LA/Ventura/ and interior Santa Barbara mountains/Antelope Valley/Cuyama Valley
* Thunderstorm threats will be brief heavy downpours, small hail, and locally strong wind gusts over 50 mph.
* 10 percent chance of thunderstorms across the San Gabriels/Antelope Valley on Tuesday afternoon
* Assessment:
* Elevated to brief critical fire weather conditions all areas away from immediate coast due to extended heat wave and low humidities
* Potential for large vertical plume growth for any new fires away from the immediate coast due to hot/unstable conditions
* Similar long duration heat waves generated large plume dominated fires in late August/early September (i.e. Station/Bobcat fires)
OUTLOOK: THURSDAY NIGHT THROUGH SUNDAY:
* Hot temperatures continue across interior Friday, with possible cooling Saturday/Sunday
* Continued dry conditions on Friday, with increasing humidity levels over the weekend
* Possible impacts from a decaying tropical system Thursday night through the weekend, but low confidence on details
* Chance of showers/thunderstorms Saturday/Sunday
* Potential large south-southeast swell with possible high surf/strong rip currents arriving by Thursday night/Friday and continuing through the weekend
* Possible coastal flooding issues due to potential high surf coupled with high tides
Read the full fire weather planning forecast: https://go.usa.gov/xRFM3
Monitor the current conditions with the Fire Weather Snooper at: https://www.weather.gov/lox/fwmV3 <https://www.weather.gov/lox/fwmV3>
Monitor the latest Warnings, Watches, and Advisories here: https://go.usa.gov/xfrA3 <https://go.usa.gov/xfrA3>
Fire One Page is a one-stop-shop for fire weather links: https://www.weather.gov/lox/fire <https://www.weather.gov/lox/fire>
We continue to be open and staff 24/7 for any weather related needs.
If you have any questions, please do not respond to this email, but call us at 805-988-6626 (unlisted)
Thank you and have a safe Labor Day weekend!
David Gomberg
Fire Weather Program Manager
National Weather Service Los Angeles/Oxnard, CA
0B0102