Alert archive / California / Red Flag Warnings in 2025
Red Flag Warning 3, NWS San Diego, CA
NWS San Diego, CA issued this red flag warning at Jan 18, 2025, 12:54 PM PST for 4 counties in California. It took effect at Jan 20, 2025, 8:00 AM PST. It was in force for 4 days. 28 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, 2025, 12:54 PM PST (20:54 UTC)
- In effect from
- Jan 20, 2025, 8:00 AM PST
- Expired
- Jan 24, 2025, 10:00 AM PST
- In force
- 4 days
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 20:59 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 20, 1:20 PM PST | WILDFIRE | 2 Nnw Poway, CA | Ted Williams Pkwy and Pomerado Road, Ted Williams brush fire burned 3 acres. |
| Jan 20, 2:10 PM PST | NON-TSTM WND GST 63 | 7 Nnw Ripley, CA | AWOS station KBLH 7 NNW Ripley. |
| Jan 20, 2:20 PM PST | NON-TSTM WND GST 37 | 2 Sw Irvine, CA | Leaves and Branches flying. |
| Jan 20, 6:20 PM PST | NON-TSTM WND GST 83 | 3 Ese Banning, CA | Mesonet station 645SE Banning (SCE1645) - Santa Ana wind. |
| Jan 20, 8:24 PM PST | NON-TSTM WND DMG | Winchester, CA | Tree down on roadway blocking both lanes. Peak Santa Ana wind gust 65 mph at SCE El Centro Ave Ext at 10 pm. Gust 45 mph at time of report. |
| Jan 20, 8:50 PM PST | NON-TSTM WND GST 80 | 4 N Rancho Cucamonga, CA | Mesonet station SE216 Deer Canyon (SCE216) - Santa Ana winds. |
| Jan 20, 9:50 PM PST | NON-TSTM WND GST 102 | 9 Ssw Julian, CA | Mesonet station SILSD Sill Hill (SDGE) - Santa Ana winds. This station record is 105 mph. |
| Jan 21, 12:48 AM PST | WILDFIRE | 4 Ese Bonsall, CA | Lilac 2 wildfire is near 100 acres. Aircraft doing night water drops. Circle R weather station is 6 percent humidity and earlier gust to 24 mph at 3 am. Santa Ana wind. Evacuation orders along and west of SR 395. |
| Jan 21, 5:40 AM PST | NON-TSTM WND GST 80 | 6 Wnw Campo, CA | Mesonet station HAUSD Hauser Mountain - Santa Ana winds. |
| Jan 21, 7:30 AM PST | NON-TSTM WND GST 88 | 6 Wnw Campo, CA | Mesonet station HAUSD Hauser Mountain, Santa Ana winds. |
| Jan 21, 12:09 PM PST | WILDFIRE | 4 N San Diego, CA | 7000 block of Friars Road next to Fashion Valley mall brush fire called Friars. Burned 15 to 20 acres in urban area on hillside. Humidity jumped from 5 to 25 percent (dewpoint temperature -6F) and east wind shifted to west wind with gusts 14 mph. |
| Jan 21, 5:00 PM PST | WILDFIRE | 5 W Riverside, CA | Clay brush fire burned 39 acres. Santa Ana River Bottom near Pedley Road and Van Buren Boulevard, Jurupa Valley. Relative humidity was 8 percent and northeast wind gusts 25 mph at SCE Camino Real. |
| Jan 22, 10:02 AM PST | WILDFIRE | 2 Ssw Rancho Bernardo, CA | *** 1 INJ *** Center wildfire near I-15 and Camino Del Norte road. Media reported one injury. 4 acres in neighborhood on hill. Ramps to I-15 closed. Significant aircraft drops. Black Mountain summit had east wind gust 16 mph, GW1405 had calm wind but relative |
| Jan 23, 4:51 AM PST | NON-TSTM WND GST 72 | 8 Ene Orange, CA | Mesonet station FRCC1 Fremont Canyon RAWS - Santa Ana wind. |
| Jan 23, 8:21 AM PST | NON-TSTM WND GST 68 | 6 Ssw Corona, CA | Mesonet station E3131 Pleasants Peak - Santa Ana winds. |
| Jan 23, 8:45 AM PST | NON-TSTM WND GST 79 | 3 Wnw Palomar Mountain, CA | Mesonet station HP014 Boucher Hill (HPWREN). |
| Jan 23, 9:18 AM PST | NON-TSTM WND DMG | 3 Sse Pine Valley, CA | Big rig overturned on I-8 at check point. Buckman Springs gust 73 mph near this time. Santa Ana wind. |
| Jan 23, 9:20 AM PST | NON-TSTM WND GST 97 | 9 Ssw Julian, CA | Mesonet station SILSD Sill Hill (SDGE) - Santa Ana wind. |
| Jan 23, 10:30 AM PST | NON-TSTM WND GST 76 | 7 E Valley Center, CA | Mesonet station HHCSD Hellhole Canyon (SDGE) - Santa Ana wind. |
| Jan 23, 10:55 AM PST | NON-TSTM WND DMG | 3 N Beaumont, CA | Powerlines down on roadway. 10440 Live Oak Ave. SCE Mountain orchard had gust 41 mph. SCE Elm had gust 46 mph. Santa Ana winds. |
| Jan 23, 11:00 AM PST | NON-TSTM WND DMG | 1 S Alpine, CA | Via Dieguenos and Via Belota has tree down on lanes. Viejas SDGE had gust 59 mph at 1130 am, Santa Ana wind. |
| Jan 23, 11:20 AM PST | NON-TSTM WND GST 68 | 7 Nne Campo, CA | Mesonet station LPTSD La Posta (SDGE) - Santa Ana winds. |
| Jan 23, 11:35 AM PST | NON-TSTM WND GST 88 | 9 Wnw Santa Ysabel, CA | Mesonet station HP016 Big Black Mountain - Santa Ana wind. |
| Jan 23, 11:52 AM PST | NON-TSTM WND GST 68 | 5 E Alpine, CA | Mesonet station ANEC1 Alpine RAWS - Santa Ana winds. |
| Jan 23, 12:40 PM PST | NON-TSTM WND GST 83 | 6 Wnw Campo, CA | Mesonet station HAUSD Hauser Mountain - Santa Ana wind. |
| Jan 23, 2:30 PM PST | WILDFIRE | 5 Wsw Dulzura, CA | Border2 wildfire on Otay mountain. 4300 acres and 10 percent contained. Evacuation warnings in effect to the west. Otay mountain SDGE had relative humidity 8 percent and Santa Ana east wind gusts to 35 to 45 mph at start and through overnight hours. Humidity d |
| Jan 23, 2:42 PM PST | WILDFIRE | 5 Nne Mission Beach, CA | Gilman brush fire burned 2 acres. Gilman Drive and Via Alicante, South of La Jolla. Relative humidity was 6 percent and Santa Ana wind gusts 15 to 20 mph at nearest weather station. Dewpoint temperature as low as -9F overnight. |
| Jan 23, 4:40 PM PST | WILDFIRE | 3 S Hemet, CA | Gibbel brush fire reached 15 acres. State Street and Gibbel Road, Hemet. SCE Heshmet had relative humidity at 7 percent and wind gusts 15 mph. |
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, 8.9 hours before the alert went out and 124 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
- 768 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
040 WWUS86 KSGX 182054 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 1254 PM PST Sat Jan 18 2025 CAZ248-250-255>258-265-554-190630- /O.UPG.KSGX.FW.A.0004.250120T1800Z-250122T0600Z/ /O.NEW.KSGX.FW.W.0003.250120T1800Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 1254 PM PST Sat Jan 18 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 10 AM MONDAY TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA ANA MOUNTAINS, SAN GORGONIO PASS, SAN BERNARDINO COUNTY MOUNTAINS, RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO COUNTY MOUNTAINS, INLAND EMPIRE, INLAND ORANGE COUNTY AND THE SAN DIEGO COUNTY VALLEYS... The National Weather Service in San Diego has issued a Red Flag Warning for strong gusty winds and low relative humidity, which is in effect from 10 AM Monday to 10 PM PST Tuesday. The Fire Weather Watch is no longer in effect. * WINDS...Northeast and east winds 25 to 35 mph with gusts 40 to 50 mph, locally over 60 mph in mountain passes and canyons. Highest winds Monday night and Tuesday morning. * RELATIVE HUMIDITY...As low as 5 percent, lowest on Tuesday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
18 follow-up statements
688 WWUS86 KSGX 190553 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 953 PM PST Sat Jan 18 2025 CAZ248-250-255>258-265-554-191400- /O.CON.KSGX.FW.W.0003.250120T1800Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 953 PM PST Sat Jan 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...VALLEYS...AND INLAND ORANGE COUNTY... * WINDS...Northeast 25 to 35 mph with gusts up to 50 mph. Isolated gusts to 75 mph. * RELATIVE HUMIDITY...15 to 20 percent on Monday, falling to 5 to 8 percent on Tuesday with poor overnight recover. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ SS http://www.weather.gov/sandiego
716 WWUS86 KSGX 191126 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 326 AM PST Sun Jan 19 2025 CAZ248-250-255>258-265-554-192215- /O.CON.KSGX.FW.W.0003.250120T1800Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 326 AM PST Sun Jan 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...VALLEYS...AND INLAND ORANGE COUNTY... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts to 75 mph. * RELATIVE HUMIDITY...15 to 20 percent on Monday, falling to 5 to 8 percent on Tuesday with poor overnight recovery. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
156 WWUS86 KSGX 192127 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 127 PM PST Sun Jan 19 2025 CAZ248-250-255>258-265-554-200630- /O.EXT.KSGX.FW.W.0003.250120T1600Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 127 PM PST Sun Jan 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM MONDAY TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...VALLEYS...AND INLAND ORANGE COUNTY... * WINDS...Northeast 20 to 30 mph with gusts up to 60 mph. Isolated gusts over 75 mph. * RELATIVE HUMIDITY...10 to 20 percent on Monday, falling to 5 to 8 percent on Tuesday with poor overnight recovery. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
622 WWUS86 KSGX 200538 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 938 PM PST Sun Jan 19 2025 CAZ248-250-255>258-265-554-201430- /O.CON.KSGX.FW.W.0003.250120T1600Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 938 PM PST Sun Jan 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM MONDAY TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...VALLEYS...AND INLAND ORANGE COUNTY... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 75 mph on the favored coastal slopes and canyons. * RELATIVE HUMIDITY...10-15 percent Monday afternoon, falling as low as 5-8 percent on Tuesday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
351 WWUS86 KSGX 201140 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 340 AM PST Mon Jan 20 2025 CAZ248-250-255>258-265-554-202215- /O.CON.KSGX.FW.W.0003.250120T1600Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 340 AM PST Mon Jan 20 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS...VALLEYS...AND INLAND ORANGE COUNTY... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 75 mph on the favored coastal slopes and canyons. * RELATIVE HUMIDITY...10-15 percent this afternoon, falling as low as 5-8 percent on Tuesday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
999 WWUS86 KSGX 202135 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 135 PM PST Mon Jan 20 2025 CAZ250-255>258-265-210630- /O.NEW.KSGX.FW.A.0005.250123T0200Z-250124T0200Z/ /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- 135 PM PST Mon Jan 20 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAINS AND THE SAN DIEGO COUNTY VALLEYS... ...FIRE WEATHER WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAINS AND THE SAN DIEGO COUNTY VALLEYS... The National Weather Service in San Diego has issued a Fire Weather Watch for strong gusty winds and low relative humidity, which is in effect from Wednesday evening through Thursday afternoon. * RED FLAG WARNING WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 80 mph on the favored coastal slopes and canyons. * FIRE WEATHER WATCH WINDS...Northeast 20 to 30 with gusts up to 55 mph, highest winds on Thursday morning and afternoon. * RELATIVE HUMIDITY...As low as 4 percent Tuesday and Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest and San Gorgonio Pass Near Banning. 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ CAZ248-554-210630- /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- Orange County Inland Areas- 135 PM PST Mon Jan 20 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE AND ORANGE COUNTY INLAND AREAS... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 75 mph on the favored coastal slopes and canyons. * RELATIVE HUMIDITY...As low as 5 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys-The Inland Empire and Orange County Inland Areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ http://www.weather.gov/sandiego
470 WWUS86 KSGX 210535 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 935 PM PST Mon Jan 20 2025 CAZ250-255>258-265-211415- /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ /O.CON.KSGX.FW.A.0005.250123T0200Z-250124T0200Z/ San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- 935 PM PST Mon Jan 20 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAINS AND THE SAN DIEGO COUNTY VALLEYS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAINS AND THE SAN DIEGO COUNTY VALLEYS... * RED FLAG WARNING WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 75 mph on the favored coastal slopes and canyons. * FIRE WEATHER WATCH WINDS...Northeast 20 to 30 with gusts up to 55 mph, peaking Thursday morning and afternoon. * RELATIVE HUMIDITY...10-15 percent tongiht, falling to as low as 4-8 percent Tuesday and Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest and San Gorgonio Pass Near Banning. 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ CAZ248-554-211415- /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- Orange County Inland Areas- 935 PM PST Mon Jan 20 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST TUESDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE AND ORANGE COUNTY INLAND AREAS... * WINDS...Northeast 25 to 35 mph with gusts up to 60 mph. Isolated gusts in excess of 75 mph on the favored coastal slopes and canyons. * RELATIVE HUMIDITY...10 to 15 percent tonight falling to 4 to 8 percent Tuesday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire and Orange County Inland Areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ http://www.weather.gov/sandiego
950 WWUS86 KSGX 211135 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 335 AM PST Tue Jan 21 2025 CAZ250-255>258-265-212300- /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ /O.CON.KSGX.FW.A.0005.250123T0200Z-250124T0200Z/ San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- 335 AM PST Tue Jan 21 2025 ...RED FLAG WARNING IN EFFECT UNTIL 10 PM PST THIS EVENING FOR THE SANTA ANA MOUNTAINS, SAN GORGONIO PASS, SAN BERNARDINO COUNTY MOUNTAINS, RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO COUNTY MOUNTAINS, AND THE SAN DIEGO COUNTY VALLEYS FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON FOR THE SANTA ANA MOUNTAINS, SAN GORGONIO PASS, SAN BERNARDINO COUNTY MOUNTAINS, RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO COUNTY MOUNTAINS, AND THE SAN DIEGO COUNTY VALLEYS FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY... * RED FLAG WARNING WINDS...Northeast 25 to 35 mph with gusts to 60 mph. Isolated gusts to 80 to 90 mph for the San Diego County mountains. * FIRE WEATHER WATCH WINDS...Northeast 20 to 30 with gusts to 55 mph, peaking Thursday morning and afternoon. * RELATIVE HUMIDITY...As low as 4 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest and San Gorgonio Pass Near Banning. 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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && $$ CAZ248-554-212300- /O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/ San Bernardino and Riverside County Valleys - The Inland Empire- Orange County Inland Areas- 335 AM PST Tue Jan 21 2025 ...RED FLAG WARNING IN EFFECT UNTIL 10 PM PST THIS EVENING FOR THE INLAND EMPIRE AND INLAND ORANGE COUNTY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY... * WINDS...Northeast 15 to 25 mph with gusts up to 55 mph. * RELATIVE HUMIDITY...As low as 4 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...Inland Empire and Orange County Inland Areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ http://www.weather.gov/sandiego 17
136 WWUS86 KSGX 212103 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 103 PM PST Tue Jan 21 2025 .RED FLAG WARNING THROUGH THURSDAY EVENING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS. CAZ250-255>258-265-212215- /O.CAN.KSGX.FW.A.0005.250123T0200Z-250124T0200Z/ /O.EXT.KSGX.FW.W.0003.000000T0000Z-250124T0400Z/ San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- 102 PM PST Tue Jan 21 2025 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PST THURSDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR INLAND ORANGE COUNTY, SANTA ANA MOUNTAINS, SAN BERNARDINO AND RIVERSIDE COUNTIES MOUNTAINS, INLAND EMPIRE, SAN GORGONIO PASS, INLAND SAN DIEGO COUNTY FOOTHILLS AND VALLEYS AND THE SAN DIEGO MOUNTAINS... ...FIRE WEATHER WATCH IS CANCELLED FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE MOUNTAINS, SAN GORGONIO PASS AND INLAND SAN DIEGO COUNTY VALLEYS AND FOOTHILLS AND UPGRADED TO A RED FLAG WARNING... The National Weather Service in San Diego has cancelled the Fire Weather Watch. * RED FLAG WARNING WINDS...Santa Ana winds decrease to speeds of 10 to 20 mph Tuesday evening and night with gusts 30 to 40 mph in the wind prone canyons and passes. On Wednesday, winds increasing northeast 20 to 30 mph with gusts to 40 to 50 mph. Isolated gusts to 75 mph for the San Diego County and Santa Ana mountains. Strongest winds during Wednesday night. * RELATIVE HUMIDITY...Very poor recovery Tuesday night and Wednesday morning of 10 to 20 percent in wind prone areas. As low 4 to 10 percent on Wednesday and again on Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest and San Gorgonio Pass Near Banning. 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 wildfire behavior. && $$ CAZ248-554-220715- /O.EXT.KSGX.FW.W.0003.000000T0000Z-250124T0400Z/ San Bernardino and Riverside County Valleys - The Inland Empire- Orange County Inland Areas- 103 PM PST Tue Jan 21 2025 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PST THURSDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR INLAND EMPIRE AND INLAND ORANGE COUNTY... * WINDS...Northeast winds becoming light northeast 5 to 15 mph during Tuesday night. Santa Ana winds increasing again to speeds 20 to 30 mph with gusts up to 40 mph during Wednesday afternoon and overnight into Thursday morning. * RELATIVE HUMIDITY...Poor recovery under 25 percent in wind prone areas. As low as 4 to 10 percent during Wednesday and Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme wildfire behavior. * LOCATION...San Bernardino and Riverside County Valleys - The Inland Empire and Orange County Inland Areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ AT http://www.weather.gov/sandiego
879 WWUS86 KSGX 220319 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 719 PM PST Tue Jan 21 2025 .RED FLAG WARNING THROUGH THURSDAY EVENING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS. CAZ248-250-255>258-265-554-221400- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T0400Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 719 PM PST Tue Jan 21 2025 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PST THURSDAY FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR INLAND ORANGE COUNTY, SANTA ANA MOUNTAINS, SAN BERNARDINO AND RIVERSIDE COUNTIES MOUNTAINS, INLAND EMPIRE, SAN GORGONIO PASS, INLAND SAN DIEGO COUNTY FOOTHILLS AND VALLEYS AND THE SAN DIEGO MOUNTAINS... * WINDS...On Wednesday, winds increasing northeast 20 to 30 mph with gusts to 40 to 50 mph. Isolated gusts to 75 mph for the San Diego County and Santa Ana mountains. Strongest winds during Wednesday night. * RELATIVE HUMIDITY...Very poor recovery Tuesday night and Wednesday morning of 10 to 20 percent in wind prone areas. As low as 4 to 10 percent on Wednesday, and again on Thursday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest and San Gorgonio Pass Near Banning. 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. && $$ http://www.weather.gov/sandiego
113 WWUS86 KSGX 221025 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 225 AM PST Wed Jan 22 2025 CAZ248-250-255>258-265-554-222230- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T0400Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 225 AM PST Wed Jan 22 2025 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM PST THURSDAY FOR THE MOUNTAINS, VALLEYS, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 30 to 40 mph with gusts to 65 mph. Strongest winds are expected during the day on Thursday. * RELATIVE HUMIDITY...As low as 4 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego 17
966 WWUS86 KSGX 222010 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 1210 PM PST Wed Jan 22 2025 ..RED FLAG WARNING THROUGH FRIDAY MORNING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS FOR ALL MOUNTAINS, INLAND EMPIRE, INLAND ORANGE COUNTY, SAN DIEGO VALLEYS, AND SAN GORGONIO PASS.. CAZ248-250-255>258-265-554-230615- /O.EXT.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 1210 PM PST Wed Jan 22 2025 ...RED FLAG WARNING NOW IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 30 to 45 mph with gusts 60 to 75 mph. Strongest winds are expected on mountain foothills and below passes. Local gusts up to 85 mph on the coastal slopes of the San Diego County mountains. Winds will be strongest on Thursday, gradually weakening into Friday. * RELATIVE HUMIDITY...5 to 10 percent. Overnight humidity recovery will be poor tonight into Thursday and Thursday night into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. Fuels are critically dry. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
281 WWUS86 KSGX 230412 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 812 PM PST Wed Jan 22 2025 ..RED FLAG WARNING THROUGH FRIDAY MORNING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS FOR ALL MOUNTAINS, INLAND EMPIRE, INLAND ORANGE COUNTY, SAN DIEGO VALLEYS, AND SAN GORGONIO PASS.. CAZ248-250-255>258-265-554-231215- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Inland Areas- 812 PM PST Wed Jan 22 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 30 to 45 mph with gusts 60 to 75 mph. Strongest winds are expected on mountain foothills and below passes. Local gusts up to 85 mph on the coastal slopes of the San Diego County mountains. Winds will be strongest on Thursday, gradually weakening into Friday. * RELATIVE HUMIDITY...5 to 10 percent. Overnight humidity recovery will be poor tonight into Thursday, and Thursday night into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. Fuels are critically dry. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass Near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
388 WWUS86 KSGX 231013 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 213 AM PST Thu Jan 23 2025 CAZ248-250-255>258-265-554-232230- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass near Banning- Orange County Inland Areas- 213 AM PST Thu Jan 23 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 30 to 40 mph with gusts 60 to 70 mph. Isolated gusts to 70 to 80 mph for the San Diego County mountains. The strongest winds are expected from after sunrise this morning into the afternoon with winds diminishing for tonight into Friday morning. * RELATIVE HUMIDITY...Mostly 5 percent or less today, recovering to 5 to 15 percent for tonight. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. Fuels are critically dry. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego 17
151 WWUS86 KSGX 232107 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 107 PM PST Thu Jan 23 2025 ..RED FLAG WARNING THROUGH FRIDAY MORNING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS FOR ALL MOUNTAINS, INLAND EMPIRE, INLAND ORANGE COUNTY, SAN DIEGO VALLEYS, AND SAN GORGONIO PASS.. CAZ248-250-255>258-265-554-240615- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass near Banning- Orange County Inland Areas- 107 PM PST Thu Jan 23 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 30 to 40 mph with gusts 60 to 70 mph. Isolated gusts near 75 mph for the San Diego County mountains. Wind will gradually weaken tonight into Friday morning. * RELATIVE HUMIDITY...Mostly 5 percent or less today, recovering to 5 to 15 percent for tonight. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. Fuels are critically dry. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
392 WWUS86 KSGX 240538 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 938 PM PST Thu Jan 23 2025 ..RED FLAG WARNING THROUGH FRIDAY MORNING FOR LOW HUMIDITY AND ADDITIONAL SANTA ANA WINDS FOR ALL MOUNTAINS, INLAND EMPIRE, INLAND ORANGE COUNTY, SAN DIEGO VALLEYS, AND SAN GORGONIO PASS.. CAZ248-250-255>258-265-554-241415- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass near Banning- Orange County Inland Areas- 938 PM PST Thu Jan 23 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...Northeast 20 to 30 mph with gusts 40 to 50 mph. Isolated gusts near 60 mph in the wind prone passes and canyons in the early part of the night. Wind will gradually weaken late tonight into Friday morning. * RELATIVE HUMIDITY...6-15 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego
248 WWUS86 KSGX 241100 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 300 AM PST Fri Jan 24 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST TODAY FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR GUSTY SANTA ANA WINDS AND VERY LOW RELATIVE HUMIDITY... CAZ248-250-255>258-265-554-241800- /O.CON.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass near Banning- Orange County Inland Areas- 300 AM PST Fri Jan 24 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING FOR THE MOUNTAINS, SAN DIEGO VALLEYS, INLAND EMPIRE, INLAND ORANGE COUNTY, AND THE SAN GORGONIO PASS FOR STRONG GUSTY WINDS AND VERY LOW RELATIVE HUMIDITY... * WINDS...East 10 to 20 mph with gusts to 40 mph. Isolated gusts to 40 to 50 mph through 6 AM. * RELATIVE HUMIDITY...As low as 2 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for rapid fire spread and extreme fire behavior. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest, Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest, San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest, San Gorgonio Pass near Banning and Orange County Inland Areas. 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. && $$ http://www.weather.gov/sandiego 17
936 WWUS86 KSGX 241752 RFWSGX URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 952 AM PST Fri Jan 24 2025 CAZ248-250-255>258-265-554-241900- /O.EXP.KSGX.FW.W.0003.000000T0000Z-250124T1800Z/ San Bernardino and Riverside County Valleys - The Inland Empire- San Diego County Inland Valleys-San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest-San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass near Banning- Orange County Inland Areas- 952 AM PST Fri Jan 24 2025 ...RED FLAG WARNING WILL EXPIRE AT 10 AM PST THIS MORNING FOR STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY MOUNTAINS AND INLAND VALLEYS... Santa Ana winds have diminished this morning. Very dry air remains in place, so elevated fire weather conditions will continue through the rest of the day before higher humidity and wetting rain occurs this weekend into early next week. $$ http://www.weather.gov/sandiego
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 Diego, CA wrote its last area forecast discussion before this red flag warning went out at Jan 18, 9:35 AM PST, 3 hours 19 minutes earlier.
Area forecast discussion, Jan 18, 9:35 AM PST, 3 hours 19 minutes before
Area Forecast Discussion
National Weather Service San Diego CA
935 AM PST Sat Jan 18 2025
.SYNOPSIS...
Onshore flow will continue to bring cooler weather and partly
cloudy skies west of the mountains during the nights and mornings
into Monday. Offshore flow will develop late Monday with Santa
Ana Winds late Monday through Tuesday, and possibly again
Thursday.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
.SHORT TERM...
Update: The inversion is continuing to break with most of the low
clouds lifting and dissipating within the inland valleys, and
only a more predominant cloud bank still hugging a portion of the
coastal region in Orange County, south of Santa Ana. Clear skies
are expected to persist through the afternoon hours. Latestmodel
data still looks for the onset of moderate Santa Ana conditions
to begin on Monday afternoon, with the strongest winds occurring
on Tuesday during the morning hours. Through tomorrow, winds will
be mostly diurnally influenced with weak onshore flow during the
day, and light offshore flow at night. Analyzing high res
guidance, the inversion near the surface will establish itself
again by later this evening, and there could be low clouds and fog
developing again west of the mtns overnight and through tomorrow
morning.
Previous discussion (329 AM)
Weakening onshore sfc pressure gradients will result in a diurnal
wind pattern through Sunday, with downsloping winds at night and
a sea breeze in the afternoons. This will continue low clouds for
the coastal areas and valleys tonight and again Sunday night.
Daytime temperatures will remain somewhat below seasonal averages
for the lower elevations west of the mtns through Sunday.
Overnight low temps will remain below seasonal averages west of
the mountains through Sunday night, and some low-lying areas of
the inland valleys could experience frost.
Sfc high pressure moving into the Great basin and setting up
strong offshore pressure gradients, along with a shortwave trough
moving south out of Canada in the mean flow aloft will likely
produce another Santa Ana wind event early next week. With the
shortwave trough providing upper level support, the northeast to
east winds will likely peak Monday night/Tue morning with gusts
locally reaching 60-65 mph in the windiest locations. As we would
expect, humidities will drop into the single-digit range by Tue
afternoon for all areas inland of the immediate coast. After that
shortwave passes to the east, the winds will weaken as upper
support is lost and offshore sfc pressure gradients weaken.
Daytime high temperatures will rise but remain near or slightly
below seasonal averages due to the cold air advection opposing the
compression warming as the air flows downhill out of the Great
Basin.
A second shortwave trough will follow later in the week but will
likely take a more inland track which would be less effective at
lending upper support so that the next surge of offshore winds for
Thu/Fri will likely not be as strong as the Mon/Tue event.
Humidities will remain low for inland areas through Friday.
Onshore flow with lower temperatures, increasing humidity and a
return of marine layer low clouds could return for next Saturday.
&&
.AVIATION...
181630Z...Stratus based at 3500ft MSL lingers this morning. Coverage
is SCT-BKN over the northern half of Orange County and in parts of
the Inland Empire, but clouds have generally cleared off of the
coast. Stratus should fully clear the region by 19z.
Low clouds redevelop and move inland after 04-06z this evening with
lower bases and a more typical full coverage marine layer. Bases
will be around 1000-1500ft MSL, slightly lowering through the night,
and conditions may be IFR by 10-12z along the coast. VIS
restrictions 3-6SM possible along the coasts with locally lower VIS
within valleys and on coastal higher terrain down to 1/2SM.
Confidence for KSAN is 80-90% for MVFR CIGs and VIS around 6SM
overnight, and a 25-35% for IFR CIGs after 10z. Any low clouds
and/or FG should clear to the coasts by 16z with full clearing by 18-
19z.
NWS San Diego is aware of limited communications of observations
from KTRM since January 8th. We are working with the FAA to address
this issue.
&&
.MARINE...
No hazardous marine conditions are expected through Wednesday.
&&
.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Fire Weather Watch from Monday morning through Tuesday evening
for Orange County Inland Areas-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San
Bernardino National Forest-San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger
Districts Of The San Bernardino National Forest-San
Bernardino and Riverside County Valleys -The Inland Empire-
San Diego County Inland Valleys-San Diego County Mountains-
Including The Palomar And Descanso Ranger Districts of the
Cleveland National Forest-San Gorgonio Pass Near Banning-
Santa Ana Mountains-Including The Trabuco Ranger District
of the Cleveland National Forest.
PZ...None.
&&
UPDATE...Stewey
PUBLIC...PG
AVIATION/MARINE...ZuberNearby
Red Flag Warnings in California, 2025Every red flag warning in 2025
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.