Alert archive / California / Red Flag Warnings in 2024
Red Flag Warning 3, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this red flag warning at Jul 3, 2024, 12:47 PM PDT for Monterey County, San Benito County, California. It took effect at Jul 5, 2024, 9:00 AM PDT. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 3, 2024, 12:47 PM PDT (19:47 UTC)
- In effect from
- Jul 5, 2024, 9:00 AM PDT
- Expired
- Jul 6, 2024, 9:00 PM PDT
- In force
- 36 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Monterey County, CA, San Benito County, CA
The radar
The San Francisco radar (KMUX), 103 km from the middle of the area, began a volume at 19:52 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 7.8 hours before the alert went out and 171 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3501 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
924 WWUS86 KMTR 031947 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 1247 PM PDT Wed Jul 3 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO FRIDAY... .Red Flag Warnings currently in effect for high elevations of the North Bay, East Bay Hills, and the Santa Cruz Mtns and have been extended through 9 PM Saturday. The Marin and Sonoma Coastal Ranges will see their Red Flag Warning end at 5 AM Friday. The Fire Weather Watch for Monterey and San Benito counties has been upgraded to a Red Flag Warning for 5 AM Friday through 9 PM Saturday. While the winds are marginal, this decision was made due to a combination of continued very low RH in the teens, very dry fuels, and the 4th of July holiday. Also, gusts up to 25 mph will be possible across ridgetops and higher peaks. Fuels continue to cure and will see no relief through this weekend. In fact, 10 and 100 hour fuels are near historic levels in the North Bay in regard to the energy release component going into the weekend. The same fuels in the Diablo Range and Santa Cruz Mtns aren't far behind. CAZ516>518-040400- /O.UPG.KMTR.FW.A.0001.240705T1600Z-240708T0700Z/ /O.NEW.KMTR.FW.W.0003.240705T1600Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 1247 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING IN EFFECT FROM 9 AM FRIDAY TO 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... The National Weather Service in San Francisco has issued a Red Flag Warning for winds, critically dry fuels, and low relative humidities, which is in effect from 9 AM Friday to 9 PM PDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 7 percent. * TEMPERATURES...Up to 112. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$ CAZ504-512-515-040400- /O.EXT.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 1247 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Up to 107. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ CAZ502-503-040400- /O.CON.KMTR.FW.W.0002.000000T0000Z-240705T1200Z/ Marin Coastal Range-Sonoma Coastal Range- 1247 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR THE MARIN AND SONOMA COASTAL RANGES... * AFFECTED AREA...Fire Weather Zone 502 Marin Coastal Range and Fire Weather Zone 503 Sonoma Coastal Range. * TIMING...Until 5 AM Friday. * WINDS...Southwest 5 to 10 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Up to 103. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
9 follow-up statements
276 WWUS86 KMTR 040317 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 817 PM PDT Wed Jul 3 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO FRIDAY AND THE UPCOMING WEEKEND... .Red Flag Warnings currently in effect for high elevations of the North Bay, East Bay Hills, and the Santa Cruz Mtns and have been extended through 9 PM Saturday. The Marin and Sonoma Coastal Ranges will see their Red Flag Warning end at 5 AM Friday. Also, Red Flag Warnings go into effect at 5 AM Friday through 9 PM Saturday for the higher terrain of Monterey and San Benito counties as well as the southern Salinas Valley. While the winds are marginal, this decision was made due to a combination of continued very low RH in the teens, very dry fuels, and the 4th of July holiday. Also, gusts up to 25 mph will be possible across ridgetops and higher peaks. Fuels continue to cure and will see no relief through this weekend. In fact, 10 and 100 hour fuels are near historic levels in the North Bay in regard to the energy release component going into the weekend. The same fuels in the Diablo Range and Santa Cruz Mtns aren't far behind. CAZ502-503-041300- /O.CON.KMTR.FW.W.0002.000000T0000Z-240705T1200Z/ Marin Coastal Range-Sonoma Coastal Range- 817 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR THE MARIN AND SONOMA COASTAL RANGES... * AFFECTED AREA...Fire Weather Zone 502 Marin Coastal Range and Fire Weather Zone 503 Sonoma Coastal Range. * TIMING...Until 5 AM Friday. * WINDS...Southwest 5 to 10 mph with gusts up to 15 to 20 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Up to 103. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$ CAZ504-512-515-041300- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 817 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Up to 107. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$ CAZ516>518-041300- /O.CON.KMTR.FW.W.0003.240705T1600Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 817 PM PDT Wed Jul 3 2024 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Fire Weather Zone 517 Santa Lucia Mountains and Los Padres National Forest and Fire Weather Zone 518 Mountains of San Benito County And Interior Monterey County including Pinnacles National Park. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 7 percent. * TEMPERATURES...Up to 112. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
010 WWUS86 KMTR 041233 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 533 AM PDT Thu Jul 4 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, and Santa Cruz Mountains until 9 PM Saturday. Red Flag Warnings are in effect for the Marin and Sonoma Coastal Range until 5 AM Friday. Red Flag Warnings are in effect for the Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley from 9 AM Friday through 9 PM Saturday. CAZ502-503-042200- /O.CON.KMTR.FW.W.0002.000000T0000Z-240705T1200Z/ Marin Coastal Range-Sonoma Coastal Range- 533 AM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR MARIN AND SONOMA COASTAL RANGES... * AFFECTED AREA...Fire Weather Zone 502 Marin Coastal Range and Fire Weather Zone 503 Sonoma Coastal Range. * TIMING...Until 5 AM Friday. * WINDS...Southwest 5 to 10 mph. * RELATIVE HUMIDITY...As low as 18 percent. * TEMPERATURES...Up to 97. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$ CAZ504-512-515-042200- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 533 AM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 14 percent. * TEMPERATURES...Up to 106. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-042200- /O.CON.KMTR.FW.W.0003.240705T1600Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 533 AM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
692 WWUS86 KMTR 042108 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 208 PM PDT Thu Jul 4 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, and Santa Cruz Mountains until 9 PM Saturday. Red Flag Warnings are in effect for the Marin and Sonoma Coastal Range until 5 AM Friday. Red Flag Warnings are in effect for the Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley from 9 AM Friday through 9 PM Saturday. CAZ502-503-051200- /O.CON.KMTR.FW.W.0002.000000T0000Z-240705T1200Z/ Marin Coastal Range-Sonoma Coastal Range- 208 PM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR MARIN AND SONOMA COASTAL RANGES... * AFFECTED AREA...Fire Weather Zone 502 Marin Coastal Range and Fire Weather Zone 503 Sonoma Coastal Range. * TIMING...Until 5 AM Friday. * WINDS...West 5 to 10 mph with gusts up to 20 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 96. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ504-512-515-051300- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 208 PM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 105. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$ CAZ516>518-051300- /O.CON.KMTR.FW.W.0003.240705T1600Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 208 PM PDT Thu Jul 4 2024 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Fire Weather Zone 517 Santa Lucia Mountains and Los Padres National Forest and Fire Weather Zone 518 Mountains of San Benito County And Interior Monterey County including Pinnacles National Park. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$
484 WWUS86 KMTR 051152 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 452 AM PDT Fri Jul 5 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, and Santa Cruz Mountains until 9 PM Saturday. Red Flag Warnings are in effect for the Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley from 9 AM Friday through 9 PM Saturday. CAZ502-503-051300- /O.EXP.KMTR.FW.W.0002.000000T0000Z-240705T1200Z/ Marin Coastal Range-Sonoma Coastal Range- 452 AM PDT Fri Jul 5 2024 ...RED FLAG WARNING WILL EXPIRE AT 5 AM PDT EARLY THIS MORNING FOR MARIN AND SONOMA COASTAL RANGES... $$ CAZ504-512-515-052200- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 452 AM PDT Fri Jul 5 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 16 percent. * TEMPERATURES...Up to 105. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-052200- /O.CON.KMTR.FW.W.0003.240705T1600Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 452 AM PDT Fri Jul 5 2024 ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
377 WWUS86 KMTR 051947 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 1247 PM PDT Fri Jul 5 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, and Santa Cruz Mountains until 9 PM Saturday. Red Flag Warnings are in effect for the Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley from 9 AM Friday through 9 PM Saturday. CAZ504-512-515-061000- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 1247 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 16 percent. * TEMPERATURES...Up to 105. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-061000- /O.CON.KMTR.FW.W.0003.000000T0000Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 1247 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...From 9 AM Friday to 9 PM Saturday. * WINDS...Northwest 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
970 WWUS86 KMTR 060948 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 248 AM PDT Sat Jul 6 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, Santa Cruz Mountains, Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley through 9 PM Saturday. CAZ504-512-515-070000- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 248 AM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...As low as 15 percent. * TEMPERATURES...Up to 106. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-070000- /O.CON.KMTR.FW.W.0003.000000T0000Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 248 AM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT SATURDAY FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...Until 9 PM Saturday. * WINDS...Northwest 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
402 WWUS86 KMTR 061752 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 1052 AM PDT Sat Jul 6 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, Santa Cruz Mountains, Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley through 9 PM Saturday. CAZ504-512-515-070200- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 1052 AM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 106. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-070200- /O.CON.KMTR.FW.W.0003.000000T0000Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 1052 AM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...Until 9 PM Saturday. * WINDS...Northwest 5 to 10 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 111. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
245 WWUS86 KMTR 070108 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 608 PM PDT Sat Jul 6 2024 ...CRITICAL FIRE WEATHER CONDITIONS INTO SATURDAY... Red Flag Warnings are in effect for the North Bay Interior Mountains, East Bay Hills, Santa Cruz Mountains, Santa Lucia Mountains, San Benito County, and the Southern Salinas Valley through 9 PM Saturday. CAZ504-512-515-070400- /O.CON.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 608 PM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... * AFFECTED AREA...Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 9 PM Saturday. * WINDS...West 5 to 10 mph. * RELATIVE HUMIDITY...As low as 14 percent. * TEMPERATURES...Up to 103. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ CAZ516>518-070400- /O.CON.KMTR.FW.W.0003.000000T0000Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 608 PM PDT Sat Jul 6 2024 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, 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. * TIMING...Until 9 PM Saturday. * WINDS...Northwest 5 to 10 mph. * RELATIVE HUMIDITY...As low as 8 percent. * TEMPERATURES...Up to 107. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended. 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. && $$
129 WWUS86 KMTR 070334 RFWMTR URGENT - FIRE WEATHER MESSAGE National Weather Service San Francisco CA 834 PM PDT Sat Jul 6 2024 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... .Red Flag criteria has ended, however, fuels remain dry leading to fire weather concerns. CAZ504-512-515-070445- /O.EXP.KMTR.FW.W.0002.000000T0000Z-240707T0400Z/ North Bay Interior Mountains-Santa Cruz Mountains-East Bay Hills- 834 PM PDT Sat Jul 6 2024 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, AND SANTA CRUZ MOUNTAINS... Red Flag criteria has ended, however, fuels remain dry leading to fire weather concerns. $$ CAZ516>518-070445- /O.EXP.KMTR.FW.W.0003.000000T0000Z-240707T0400Z/ Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains of San Benito County And Interior Monterey County including Pinnacles National Park- 834 PM PDT Sat Jul 6 2024 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR SANTA LUCIA MOUNTAINS, SAN BENITO COUNTY, AND THE SOUTHERN SALINAS VALLEY... Red Flag criteria has ended, however, fuels remain dry leading to fire weather concerns. $$
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this red flag warning went out at Jul 3, 10:22 AM PDT, 2 hours 25 minutes earlier.
Area forecast discussion, Jul 3, 10:22 AM PDT, 2 hours 25 minutes before
Area Forecast Discussion
National Weather Service San Francisco CA
1022 AM PDT Wed Jul 3 2024
...New AVIATION, MARINE...
.SYNOPSIS...
Issued at 1224 AM PDT Wed Jul 3 2024
Extreme heat will continue for inland areas and higher elevations.
Triple digit afternoon temperatures are expected into early next
week. Please take it easy, we are still in the early stages of
this prolonged heat wave.
&&
.UPDATE...
Issued at 1005 AM PDT Wed Jul 3 2024
It's a bit past 9am, and temperatures across
the region are running on average anywhere from 3-7 degrees warmer
than this same time yesterday. A few spots in the South Bay are even
10-11 degrees warmer than this same time yesterday with current
temps sitting in the low 90s. Read that again. 9am, and temperatures
are in the 90s in the South Bay. But wait! They're in the 90s in the
East Bay, central San Benito county, and the eastern portion of Napa
county bordering that of Yolo and Solano counties too! Elsewhere but
for the immediate coast, temperatures are well into the upper 80s.
Needless to say, its going to be another very hot day across our
region. Keep in mind, this is JUST day 2 of an extraordinary heat
wave (interior regions reaching into 95-100+ degrees daytime highs)
that keeps going through at least Tuesday of next week, and
potentially even Wednesday. We're not just looking at a marathon,
but an ultra-marathon at this point. Its one thing to have a stretch
of very hot days, its another to have stretch of very hot days AND
little to no overnight relief. This is the part that can be most
taxing on our bodies: The normal relief we might get from cool
overnight temperatures just isn't quite there, therefore forcing our
bodies to keep working harder to keep us cool. But not just our
bodies; our infrastructure too.
So please, take it easy, take it safe, and stay cool however you
can. We've seen a lot of comments and replies downplaying the
severity of the heat we are expecting, and even accusing ourselves
and other offices of "fearmongering". Make no mistake, this heat
wave is extreme, and will likely be deadly as the days of extreme
heat continue to accumulate, especially given that there are many
homes throughout the Bay Area that do not have air conditioning
installed. We are not here to fearmonger, but rather to inform you
all to the best of our abilities and to protect life and property
during this extreme heat event. We want everyone to be safe and
informed.
This all aside, we are examining the need to extend Red Flag
Warnings for critically dry conditions that persist through the
weekend. All for now.
&&
.SHORT TERM...
(Today and tonight)
Issued at 1224 AM PDT Wed Jul 3 2024
It's almost 1 AM as I type this and it's still 80 degrees in San
Jose. Weather stations in the thermal belt around 1,500 ft are
still in the low 90s. This is 5-10 degrees higher than expected on
even the high-resolution short term models. If this trend holds
through sunrise, the warm start will lead to numerous daily
records being broken Wednesday. The NBM 50th percentile max
temperature strategy broadly panned out yesterday, and was used
again for the forecast this morning. One notable bust was Santa
Cruz, where we forecast mid 80s, but they never got out of the 60s.
This is evidence that the marine layer, while shallow, is still
having a profound cooling effect on coastal cities. This natural
air conditioning will continue along the coast today, but with
building high pressure, the marine layer will compress below 500
ft and won't extend as far inland. If you live along the coast,
enjoy the nice weather, but before you complain that we are
over-hyping the heat wave, remember that it was 108 degrees in
Concord yesterday.
&&
.LONG TERM...
(Thursday through Tuesday)
Issued at 1224 AM PDT Wed Jul 3 2024
July 4th is in the middle of this heat wave. It will be clear and
hot, unless you can make it to the coast. With a shallow marine
layer, there will be a big difference across the Bay Area
microclimates. As an example, downtown San Francisco will be in
the mid 80s, while Ocean Beach will remain in the mid 60s. Winds
will mostly remain gentle to moderate. Enjoy the day but stay
weather aware. Use caution in the heat or on the beach, and
please skip the fireworks this year. Wildfires will be easy to
start and quick to spread.
The lastest weather balloon found 850 mb temperatures have climbed
above 25C. This threshold is reached 1.8% of the time. More
interesting is the fact that the 850 mb temp now is expected to
remain above 25C through the end of next week. Nearly all members
of the ECMWF and GEFS ensembles keep a strong ridge in place that
very gradually slides east over the next week and a half. As such,
the confidence is high and increasing that this heat wave will
persist through the end of next week for inland areas. There may
be some slight relief after the weekend and inland temps may move
back in the double digits, but it's not a big cool-down.
Additionally, the cumulative effect of this long heat wave will
make it hard to appreciate the modest relief in afternoon temps.
With no strong offshore winds expected, coastal areas will remain
more mild through this event.
It cannot be stressed enough that this is an exceptionally
dangerous and lethal situation. It may not seem so if you live
near the coast, but an event of this scale, magnitude, and
longevity will likely rival anything we've seen in the last 18
years for inland areas. Several days of temperatures well above
normal and little relief overnight will lead to compounding
effects among people and infrastructure, with the possibility of
numerous heat related fatalities and rolling black outs. Heat is
the number one weather related killer in the United States. By
this weekend, it is VERY LIKELY that we add to that statistic if
preparations are not taken seriously.
&&
.AVIATION...
(18Z TAFS)
Issued at 1021 AM PDT Wed Jul 3 2024
Satellite shows clear skies across the region with some stratus off
the coast traveling northward. The marine layer has compressed under
the high pressure systems influence. This will increase the chances
for some low visibility and low ceilings near the coastal sites.
Higher confidence that only Monterey terminals may be effected, but
chances still remain low. With some current fires, there is a chance
for haze near the terminals. Otherwise, expect VFR to prevail
through the TAF period for all terminals. Onshore winds will become
moderate to breezy this afternoon before becoming variable and light
tonight.
Vicinity of SFO...High confidence that VFR will prevail through
the TAF period. NW/W winds will become breezy this afternoon up to
12 knots. Winds become light this evening into the morning.
SFO Bridge Approach...Similar to SFO.
Monterey Bay Terminals...VFR through the TAF period. Confidence is
low that lower CIGs and visibility will occur but models suggest
LIFR conditions over night. Will continue to monitor for any updates
needed to the TAFs.
&&
.MARINE...
(Today through Monday)
Issued at 1021 AM PDT Wed Jul 3 2024
Gentle to moderate winds continue into the weekend, with
possible gusty and strong winds in the northern outer waters that
will pose hazardous to small crafts through today. Portions of
the northern outer waters may see peak wave heights between 11-16
feet through the late afternoon as well. Waves start to diminish
Thursday morning, bringing calm conditions over the waters.
&&
.FIRE WEATHER...
Issued at 1224 AM PDT Wed Jul 3 2024
Red Flag Warnings remain in effect for high elevations of the
North Bay, East Bay, and the Santa Cruz Mountains. These RFW
extend through 5 AM Friday, including the 4th of July holiday.
Fuels will continue quickly curing through the weekend. In fact,
10 and 100 hour fuels are near historic levels in the North Bay in
regard to the energy release component going into the weekend.
The same fuels in the Diablo Range and Santa Cruz Mtns aren't far
behind. Further south, things start to dry out more this weekend.
A Fire Weather Watch is in effect for the Santa Lucia Range,
Interior Monterey and San Benito county, and the Southern Salinas
Valley from Friday morning to Sunday night.
&&
.BEACHES...
Issued at 1224 AM PDT Wed Jul 3 2024
Beaches will be a popular destination over the Holiday and as one
of the few places to escape the oppressive inland temperatures.
Fortunately the waves are relatively low energy, but that doesn't
alleviate all beach safety concerns. Ocean temperatures are in
the mid-50s. This cold water may catch some off-guard. Cold water
shock can set in very quickly. Wear a life jacket, dress
appropriately, limit time in the water, swim near a lifeguard and
follow their instructions.
&&
.CLIMATE...
Issued at 1224 AM PDT Wed Jul 3 2024
This heat wave will continue to break daily records. Here's a look
at locations that tied or beat their daily record on Tuesday, July
2nd.
LOCATION HIGH PREVIOUS RECORD
---------------------------------------------------------------
SAN JOSE 102 (TIED) 102 IN 1970
SAN RAFAEL 103 101 IN 1991
KENTFIELD 103 101 IN 1991
SANTA ROSA 105 103 IN 1970
OAKLAND 90 89 IN 2001
These data are preliminary and have not undergone final quality
control by the National Centers for Environmental Information.
Therefore, these data are subject to revision. Final and certified
climate data can be accessed at www.ncei.noaa.gov.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
CA...Coastal Flood Advisory until 5 AM PDT Friday for CAZ006-506-508.
Heat Advisory until 7 PM PDT Thursday for CAZ006.
Excessive Heat Warning until 11 PM PDT Tuesday for CAZ502>504-
506-510-512>518.
Red Flag Warning until 5 AM PDT Friday for CAZ502>504-512-515.
Heat Advisory until 11 PM PDT Tuesday for CAZ508-528-529.
Fire Weather Watch from Friday morning through Sunday evening
for CAZ516>518.
PZ...Small Craft Advisory until 3 AM PDT Thursday for Pt Arena to Pt
Reyes 10-60 NM.
&&
SHORT TERM...Flynn
LONG TERM....Flynn
AVIATION...SO
MARINE...SO
Visit us at www.weather.gov/sanfrancisco
Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/nwsbayarea
www.twitter.com/nwsbayarea
www.youtube.com/nwsbayareaThe office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 2:52 AM PDT | Small Craft Advisory | MTR | 6 hr | |
| Jul 3, 8:36 AM PDT | Small Craft Advisory | MTR | 18 hr |
Nearby
Red Flag Warnings in California, 2024Every red flag warning in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.