Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 2, NWS Los Angeles, CA
NWS Los Angeles, CA issued this red flag warning at Jan 18, 2021, 11:40 AM PST for Los Angeles County, California. It took effect at Jan 18, 2021, 10:00 PM PST. It was in force for 36 hr. 25 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 18, 2021, 11:40 AM PST (19:40 UTC)
- In effect from
- Jan 18, 2021, 10:00 PM PST
- Expired
- Jan 20, 2021, 10:00 AM PST
- In force
- 36 hr
- Issued by
- NWS Los Angeles, CA
County Los Angeles County, CA
The radar
The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 19:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 19, 6:30 AM PST | NON-TSTM WND GST 64 | 4 N Chatsworth, CA | MESONET STATION SE079 OAT MOUNTAIN (SCE). |
| Jan 19, 8:00 AM PST | NON-TSTM WND GST 63 | 3 Ne San Fernando, CA | MESONET STATION SE177 PACOIMA DAM (SCE). |
| Jan 19, 8:30 AM PST | NON-TSTM WND GST 74 | 1 Nnw Chatsworth, CA | MESONET STATION SE712 BROWNS CYN (SCE). |
| Jan 19, 8:50 AM PST | NON-TSTM WND GST 69 | 6 Ne Val Verde, CA | MESONET STATION SE032 CASTAIC LAKE (SCE). |
| Jan 19, 8:53 AM PST | NON-TSTM WND GST 87 | 8 Ese Castaic Lake, CA | MESONET STATION WMSC1 WARM SPRINGS RAWS. |
| Jan 19, 9:10 AM PST | NON-TSTM WND GST 67 | 5 S Santa Clarita, CA | MESONET STATION SE486 NEWHALL PASS (SCE). |
| Jan 19, 9:50 AM PST | NON-TSTM WND GST 86 | 9 Ne San Fernando, CA | MESONET STATION SE678 MAGIC MTN TRUCK TRL (SCE). |
| Jan 19, 9:53 AM PST | NON-TSTM WND GST 59 | 9 Se Acton, CA | MESONET STATION MLCC1 MILL CREEK RAWS. |
| Jan 19, 9:53 AM PST | NON-TSTM WND GST 64 | 8 Nne Mount Wilson, CA | MESONET STATION CHOC1 CHILAO RAWS. |
| Jan 19, 9:55 AM PST | NON-TSTM WND GST 60 | 5 Nne San Fernando, CA | MESONET STATION CNIC1 CAMP NINE RAWS. |
| Jan 19, 9:56 AM PST | NON-TSTM WND GST 59 | 5 S Santa Clarita, CA | MESONET STATION NHPC1 NEWHALL PASS RAWS. |
| Jan 19, 9:57 AM PST | NON-TSTM WND GST 71 | 2 N Santa Clarita, CA | MESONET STATION SAUC1 SAUGUS. |
| Jan 19, 10:10 AM PST | NON-TSTM WND GST 62 | 8 E Santa Clarita, CA | MESONET STATION 049SE SCE MAGIC MOUNTAIN. |
| Jan 19, 11:30 AM PST | NON-TSTM WND DMG | Santa Clarita, CA | LARGE TREE FELL ON TO MCBEAN PARKWAY NEAR GRANARY SQUARE. ROAD CLOSED FOR MULTIPLE HOURS. ANOTHER TREE FELL IN SAME AREA AT 2PM. |
| Jan 19, 11:31 AM PST | NON-TSTM WND DMG | Santa Clarita, CA | TREE BLOWN DOWN BLOCKING PICO CANYON ROAD AT MARRIOTT WAY. |
| Jan 19, 12:57 PM PST | NON-TSTM WND GST 68 | 6 Ssw Castaic Lake, CA | MESONET STATION WTPC1 WHITAKER PEAK RAWS. |
| Jan 19, 1:53 PM PST | NON-TSTM WND GST 78 | 6 Ne Pyramid Lake, CA | ASOS STATION KSDB SANDBERG. |
| Jan 19, 2:30 PM PST | NON-TSTM WND GST 73 | 3 Ene Santa Clarita, CA | MESONET STATION SE669 SOLEMINT MOTORWAY (SCE). |
| Jan 19, 2:57 PM PST | NON-TSTM WND GST 71 | 2 N Santa Clarita, CA | MESONET STATION SAUC1 SAUGUS. |
| Jan 19, 3:20 PM PST | NON-TSTM WND GST 59 | 2 Se Val Verde, CA | MESONET STATION SE705 WOLCOTT WAY (SCE). |
| Jan 19, 5:20 PM PST | NON-TSTM WND GST 60 | 7 Wsw Acton, CA | MESONET STATION 027SE SCE MESA GRANDE RD. |
| Jan 19, 6:00 PM PST | NON-TSTM WND GST 66 | 5 Ssw Castaic Lake, CA | MESONET STATION SE683 WHITAKER RDG RD (SCE). |
| Jan 19, 7:50 PM PST | NON-TSTM WND GST 75 | 1 Nnw Chatsworth, CA | MESONET STATION SE712 BROWNS CYN (SCE). |
| Jan 19, 8:53 PM PST | NON-TSTM WND GST 64 | 8 Nne Mount Wilson, CA | MESONET STATION CHOC1 CHILAO RAWS. |
| Jan 19, 8:56 PM PST | NON-TSTM WND GST 67 | 5 S Santa Clarita, CA | MESONET STATION NHPC1 NEWHALL PASS RAWS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 7.7 hours before the alert went out and 184 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
- 3778 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
534 WWUS86 KLOX 181940 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1140 AM PST Mon Jan 18 2021 ...RED FLAG WARNINGS IN EFFECT FOR MUCH OF SOUTHWEST CALIFORNIA TONIGHT THROUGH WEDNESDAY MORNING WITH STRONG AND DAMAGING OFFSHORE WINDS... .A strong and widespread damaging wind event is expected to impact a large portion of Southwest California tonight through Wednesday morning, with the peak of the wind event Tuesday into Tuesday night. Damaging wind gusts of 60 to 80 mph are expected across portions of Los Angeles and Ventura counties during the peak, as well as the higher elevations of San Luis Obispo and Santa Barbara counties. The lowest humidities with this event are expected to be across coastal and valley areas where downslope drying will be maximized. There will be an increased risk of fire ignitions due to downed trees and powerlines, along with the threat of rapid fire spread and extreme fire behavior, especially considering the very dry fuels in place across Southwest California. CAZ240-241-244>246-288-547-548-191800- /O.UPG.KLOX.FW.A.0002.210119T0900Z-210120T0600Z/ /O.NEW.KLOX.FW.W.0002.210119T0600Z-210120T0600Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- 1140 AM PST Mon Jan 18 2021 ...RED FLAG WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST TUESDAY FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY COASTS AND VALLEYS AND SANTA MONICA MOUNTAINS... The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY, which is in effect from 10 PM this evening to 10 PM PST Tuesday. The Fire Weather Watch is no longer in effect. * Winds...Northeast winds increasing tonight, peaking Tuesday into Tuesday evening. During the peak, northeast to east winds 30 to 50 mph with damaging gusts 60 to 75 mph across valley and foothills areas, as well as the Santa Monicas, and 25 to 45 mph with damaging gusts of 50 to 65 mph for coastal areas. Strongest winds across the Ventura county Valleys, San Fernando Valley, Santa Clarita Valley, and coastal areas from Ventura to Malibu and the Hollywood Hills. Locally strong winds also expected to impact portions of the Los Angeles Basin on Tuesday. * Relative Humidity...12 to 25 percent, increasing to 20 to 30 percent by Tuesday evening. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. 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 and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ CAZ253-254-191800- /O.UPG.KLOX.FW.A.0002.210119T0900Z-210120T0600Z/ /O.NEW.KLOX.FW.W.0002.210119T0600Z-210120T0600Z/ Ventura County Mountains / Los Padres National Forest- Los Angeles County Mountains / Angeles National Forest- 1140 AM PST Mon Jan 18 2021 ...RED FLAG WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST TUESDAY FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS... The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY, which is in effect from 10 PM this evening to 10 PM PST Tuesday. The Fire Weather Watch is no longer in effect. * Winds...Northeast winds increasing tonight, peaking Tuesday into Tuesday evening. During the peak, northeast to east winds 35 to 55 mph with damaging gusts 60 to 80 mph, except isolated gusts to 90 mph possible across the Los Angeles county mountains. * Relative Humidity...15 to 30 percent tonight through Tuesday morning, increasing to 20 to 40 percent Tuesday afternoon and evening. Driest conditions across Ventura and western Los Angeles counties. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ CAZ234>236-251-252-191800- /O.UPG.KLOX.FW.A.0002.210119T0600Z-210120T1800Z/ /O.NEW.KLOX.FW.W.0002.210119T0600Z-210120T1800Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast-Santa Ynez Valley- San Luis Obispo County Mountains / Los Padres National Forest- Santa Barbara County Mountains- 1140 AM PST Mon Jan 18 2021 ...RED FLAG WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST WEDNESDAY FOR STRONG AND LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE CENTRAL COAST, SANTA YNEZ VALLEY, AND MOUNTAINS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES... The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning FOR LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY, which is in effect from 10 PM this evening to 10 AM PST Wednesday. The Fire Weather Watch is no longer in effect. * Winds...Northeast to east winds will be increasing across the San Luis obispo county coast and foothills this evening, with winds strengthening and becoming widespread across San Luis Obispo and Santa Barbara counties Tuesday into Tuesday night. During the peak, northeast to east winds 20 to 35 mph with gusts of 35 to 50 mph are expected for the Central Coast and Santa Ynez Valley, strongest in the foothills. For the mountains, northeast to east winds 30 to 50 mph with damaging wind gusts of 60 to 70 mph likely. * Relative Humidity...15 to 30 percent. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. 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 and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ Gomberg
4 follow-up statements
285 WWUS86 KLOX 191735 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 935 AM PST Tue Jan 19 2021 ...RED FLAG WARNINGS IN EFFECT FOR MUCH OF SOUTHWEST CALIFORNIA THROUGH WEDNESDAY MORNING WITH STRONG AND DAMAGING OFFSHORE WINDS... .A strong and widespread damaging wind event is expected to impact a large portion of Southwest California through Wednesday morning, with the peak of the wind event today into tonight. Damaging wind gusts of 60 to 80 mph are expected across portions of Los Angeles and Ventura counties during the peak, as well as the higher elevations of San Luis Obispo and Santa Barbara counties. The lowest humidities with this event are expected to be today across coastal and valley areas where downslope drying will be maximized. There will be an increased risk of fire ignitions due to downed trees and powerlines, along with the threat of rapid fire spread and extreme fire behavior, especially considering the very dry fuels in place across Southwest California. CAZ240-241-244>246-288-547-548-200145- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- 935 AM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY COASTS AND VALLEYS AND SANTA MONICA MOUNTAINS... * Winds...Northeast winds 30 to 50 mph with damaging gusts 60 to 75 mph across valley and foothills areas, as well as the Santa Monicas, and 25 to 45 mph with damaging gusts of 50 to 65 mph for coastal areas. Strongest winds across the Ventura county Valleys, San Fernando Valley, Santa Clarita Valley, and coastal areas from Ventura to Malibu and the Hollywood Hills. Locally strong winds also expected to impact portions of the Los Angeles Basin. * Relative Humidity...15 to 25 percent, increasing to 20 to 30 percent by this evening. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. 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 and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ CAZ253-254-200145- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Mountains / Los Padres National Forest- Los Angeles County Mountains / Angeles National Forest- 935 AM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS... * Winds...Northeast 35 to 55 mph with damaging gusts 60 to 80 mph, except isolated gusts to 90 mph possible across the Los Angeles county mountains. * Relative Humidity...15 to 30 percent, increasing to 20 to 40 percent this afternoon and evening. Driest conditions across Ventura and western Los Angeles counties. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. 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 and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ CAZ234>236-251-252-200145- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T1800Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast-Santa Ynez Valley- San Luis Obispo County Mountains / Los Padres National Forest- Santa Barbara County Mountains- 935 AM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY FOR STRONG AND LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE CENTRAL COAST, SANTA YNEZ VALLEY, AND MOUNTAINS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES... * Winds...Northeast to east winds 20 to 35 mph with gusts of 35 to 50 mph are expected for the Central Coast and Santa Ynez Valley, strongest in the foothills. For the mountains, northeast to east winds 30 to 50 mph with damaging wind gusts of 60 to 70 mph likely. * Relative Humidity...15 to 30 percent. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ Wofford
526 WWUS86 KLOX 192245 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 245 PM PST Tue Jan 19 2021 ...RED FLAG WARNINGS IN EFFECT FOR MUCH OF SOUTHWEST CALIFORNIA THROUGH WEDNESDAY MORNING WITH STRONG AND DAMAGING OFFSHORE WINDS... .Strong and widespread damaging winds are expected to impact a large portion of Southwest California through Wednesday morning, with the peak of the wind event today into tonight. Damaging wind gusts of 60 to 80 mph are expected across portions of Los Angeles and Ventura counties during the peak, as well as the higher elevations of San Luis Obispo and Santa Barbara counties. The lowest humidities with this event are expected to be Tuesday across coastal and valley areas where downslope drying will be maximized. There will be an increased risk of fire ignitions due to downed trees and powerlines, along with the threat of rapid fire spread and extreme fire behavior, especially considering the very dry fuels in place across Southwest California. CAZ240-241-244>246-288-547-548-200600- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- 245 PM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY COASTS AND VALLEYS AND SANTA MONICA MOUNTAINS... * Winds...Northeast winds 30 to 50 mph with damaging gusts 60 to 75 mph across valley and foothills areas, as well as the Santa Monicas, and 25 to 45 mph with damaging gusts of 50 to 65 mph for coastal areas. Strongest winds across the Ventura county Valleys, San Fernando Valley, Santa Clarita Valley, and coastal areas from Ventura to Malibu and the Hollywood Hills. Locally strong winds also expected to impact portions of the Los Angeles Basin. * Relative Humidity...15 to 25 percent, increasing to 20 to 30 percent by Tuesday evening and Wednesday. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. && $$ CAZ253-254-200600- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Mountains / Los Padres National Forest- Los Angeles County Mountains / Angeles National Forest- 245 PM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS... * Winds...Northeast 35 to 55 mph with damaging gusts 60 to 80 mph, except isolated gusts to 90 mph possible across the Los Angeles county mountains. * Relative Humidity...15 to 30 percent, increasing to 20 to 40 percent Tuesday evening into Wednesday. Driest conditions across Ventura and western Los Angeles counties. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$ CAZ234>236-251-252-200645- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T1800Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast-Santa Ynez Valley- San Luis Obispo County Mountains / Los Padres National Forest- Santa Barbara County Mountains- 245 PM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY FOR STRONG AND LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE CENTRAL COAST, SANTA YNEZ VALLEY, AND MOUNTAINS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES... * Winds...Northeast to east winds 20 to 35 mph with gusts of 35 to 50 mph are expected for the Central Coast and Santa Ynez Valley, strongest in the foothills. For the mountains, northeast to east winds 30 to 50 mph with damaging wind gusts of 60 to 70 mph likely. * Relative Humidity...15 to 30 percent. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. 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 and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$
164 WWUS86 KLOX 200546 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 946 PM PST Tue Jan 19 2021 ...RED FLAG WARNING IN UNTIL 10 AM PST WEDNESDAY FOR THE SANTA BARBARA AND SAN LUIS OBISPO COUNTY MOUNTAINS, CENTRAL COAST, AND SANTA YNEZ VALLEY... .Moderate to strong and offshore winds will continue to affect portions of Santa Barbara and San Luis Obispo Counties through Wednesday morning. Damaging wind gusts of 60 to 70 mph are likely across the higher mountain areas. The lowest humidities will continue to affect coastal and valley areas where downslope drying has been maximized. There will be an increased risk of fire ignitions due to downed trees and powerlines, along with the threat of rapid fire spread and extreme fire behavior, especially considering the very dry fuels in place across Southwest California. CAZ240-241-244>246-288-547-548-200700- /O.EXP.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Coast- Los Angeles County Coast including Downtown Los Angeles- Ventura County Interior Valleys-Ventura County Coastal Valleys- Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- 946 PM PST Tue Jan 19 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY COASTS AND VALLEYS AND SANTA MONICA MOUNTAINS... Red Flag Warning conditions have ended, however elevated to brief critical conditions will be possible tonight into Wednesday due to continued strong and gusty offshore winds. $$ CAZ253-254-200700- /O.EXP.KLOX.FW.W.0002.000000T0000Z-210120T0600Z/ Ventura County Mountains / Los Padres National Forest- Los Angeles County Mountains / Angeles National Forest- 946 PM PST Tue Jan 19 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 PM PST THIS EVENING FOR STRONG AND DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS... Red Flag Warning conditions have ended, however elevated to brief critical conditions will be possible tonight into Wednesday due to continued strong and gusty offshore winds. $$ CAZ234>236-251-252-201800- /O.CON.KLOX.FW.W.0002.000000T0000Z-210120T1800Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast-Santa Ynez Valley- San Luis Obispo County Mountains / Los Padres National Forest- Santa Barbara County Mountains- 946 PM PST Tue Jan 19 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY FOR STRONG AND LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE CENTRAL COAST, SANTA YNEZ VALLEY, AND MOUNTAINS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES... * Winds...Northeast to east winds 20 to 35 mph with gusts of 35 to 50 mph are expected for the Central Coast and Santa Ynez Valley, strongest in the foothills. For the mountains, northeast to east winds 30 to 50 mph with damaging wind gusts of 60 to 70 mph likely. * Relative Humidity...15 to 30 percent. * Impacts...If fire ignition occurs, conditions will be favorable for rapid fire spread, long range spotting, and extreme fire behavior which would threaten life and property. Due to the strength of the expected winds, there will be an increased potential for downed trees and powerlines, causing an increased threat of fire ignitions. In addition, there will be an increased risk for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds and low relative humidity can contribute to extreme fire behavior. Use extreme caution with potential fire ignition sources. && $$
681 WWUS86 KLOX 201735 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 935 AM PST Wed Jan 20 2021 ...RED FLAG WARNINGS EXPIRED... .Widespread critical fire weather conditions have diminished. Therefore, the Red Flag Warnings will be allowed to expire at 1000 AM PST. CAZ234>236-251-252-201845- /O.EXP.KLOX.FW.W.0002.000000T0000Z-210120T1800Z/ San Luis Obispo County Central Coast- Santa Barbara County Central Coast-Santa Ynez Valley- San Luis Obispo County Mountains / Los Padres National Forest- Santa Barbara County Mountains- 935 AM PST Wed Jan 20 2021 ...RED FLAG WARNING WILL EXPIRE AT 10 AM PST THIS MORNING FOR STRONG AND LOCALLY DAMAGING NORTHEAST TO EAST WINDS AND MODERATELY LOW RELATIVE HUMIDITY FOR THE CENTRAL COAST, SANTA YNEZ VALLEY, AND MOUNTAINS OF SAN LUIS OBISPO AND SANTA BARBARA COUNTIES... Widespread critical fire weather conditions are no longer expected. $$
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 3:23 AM PST | High Wind Warning | LOX | Los Angeles, Santa Barbara | 48 hr |
| Jan 18, 10:42 AM PST | Gale Warning | LOX | 47 hr | |
| Jan 18, 2:01 PM PST | Wind Advisory | LOX | Los Angeles, Santa Barbara | 52 hr |
Nearby
Red Flag Warnings in California, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.