Alert archive / California / High Wind Warnings in 2025

High Wind Warning 5, NWS San Diego, CA

December 22, 2025San Bernardino County, California

NWS San Diego, CA issued this high wind warning at Dec 22, 2025, 6:37 PM PST for San Bernardino County, California. It took effect at Dec 23, 2025, 12:00 PM PST. It was in force for 51 hr. 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
Dec 22, 2025, 6:37 PM PST (02:37 UTC)
In effect from
Dec 23, 2025, 12:00 PM PST
Expired
Dec 25, 2025, 3:00 PM PST
In force
51 hr
Issued by
NWS San Diego, CA

County San Bernardino County, CA

What was reported inside it

TimeReportWhereRemark
Dec 23, 10:51 PM PSTNON-TSTM WND GST 9113 Ese Big Bear City, CABurns Canyon observation station reported wind gust of 91 mph.
Dec 24, 4:12 AM PSTNON-TSTM WND GST 50Lake Arrowhead, CAScaffolding at Lake Arrowhead Village destroyed by winds; reported to have occurred during the night (prior to sunrise 12/24/25). Wind Gusts 4-6 AM were 45 to 55 mph around Lake Arrowhead.
Dec 24, 4:12 AM PSTNON-TSTM WND DMGLake Arrowhead, CAScaffolding at Lake Arrowhead Village destroyed by winds; reported to have occurred during the night (prior to sunrise 12/24/25). Wind Gusts 4-6 AM were 45 to 55 mph around Lake Arrowhead.
Dec 24, 6:00 AM PSTFLOOD2 Ne Wrightwood, CAAt SR-2 and Desert Front rd, there is a report of a flood on cardinal rd that has made it impossible to access. Area has seen near 1 inch of rain over the last 3 hours.
Dec 24, 6:00 AM PSTFLOOD2 Ne Wrightwood, CAUpdate to previous flood report from 2 NE Wrightwood. At SR-2 and Desert Front rd, there is a report of a flood on cardinal rd that has made it impossible to access. Update as of 10 AM 12/24: SR2 is closed between the HWY 2/SR138 interchange and SR2/Elm St in
Dec 24, 6:34 AM PSTFOG 0.022 E Joshua Tree, CACHP reports visibility of less than 100 feet due to fog.
Dec 24, 7:00 AM PSTFLOOD1 Ese Wrightwood, CAReport of vehicle stuck in water in a wash on Thrush Rd and Heath Creek Dr in Wrightwood. Area has seen about 2 inches of rain in the last 3 hours.
Dec 24, 7:30 AM PSTFLASH FLOOD3 Sw Phelan, CASheep creek is leaving the main channel resulting in flood impacts to Phelan Rd and Hwy 18. Quick maps reports a mud slide across HWY 18 in the High Desert.
Dec 24, 8:12 AM PSTFLOOD6 Nw Phelan, CARoad closed due to major flooding on SR 18 and Wintergreen Rd.
Dec 24, 8:30 AM PSTFLOODDevore, CARoad completely flooded with water over the bridge due to flooding and Levee brake on Glen Helen Pkwy and Cajon Blvd. Hard closure in place.
Dec 24, 9:13 AM PSTFLASH FLOOD4 Nne Lytle Creek, CAExcessive mud and debris running onto North and Southbound I-15 where I-15 intersects HWY 138 through the Cajon Pass.
Dec 24, 9:30 AM PSTFLOOD4 E Wrightwood, CACar stuck in mud and flood waters at Stuveling St / Monte Vista Rd east of Wrightwood. Area has seen 1-2 inches of rain in the past 3 hours.
Dec 24, 10:10 AM PSTNON-TSTM WND GST 807 Nne Lytle Creek, CASCE Cajon Lookout Rd observation station reported an 80 mph wind gust at 10:10 am.
Dec 24, 10:15 AM PSTNON-TSTM WND GST 742 Nw Running Springs, CAMesonet station HHPC1 Heaps Peak RAWS.
Dec 24, 10:35 AM PSTNON-TSTM WND DMG5 Se Lucerne Valley, CALarge rockslide covering both sides of the road. Wind gusts in the area were around 50-65 mph.
Dec 24, 10:48 AM PSTDEBRIS FLOW4 Nne Lytle Creek, CAAll lanes of I-15 northbound south of SR-138 are shut down for debris clean up. Traffic is being diverted off at SR-138. Mormon Rock RAWS station (near Cajon Junction) upstream of the road closure had received 7.42 inches of rain between 6-11 AM.
Dec 24, 11:26 AM PSTFLOOD4 Nne Lytle Creek, CAEmergency road closure due to flooding at Cajon Junction (I-15 Interchange and SR-138).
Dec 24, 12:00 PM PSTFLOODWrightwood, CAContinued flooding and worsening debris flows led to an Evacuation Warning in Wrightwood from Pine St to the Los Angeles County line.
Dec 24, 12:00 PM PSTDEBRIS FLOWWrightwood, CAMajor mud and debris flow in Wrightwood CA, resulted in damage to multiple properties as well as multiple swiftwater rescues. Road was washed out at sheep creek and Lone Pine rd, along with major impacts to HWY 138. An evacuation warning was issued in Wrightwo
Dec 24, 12:37 PM PSTFLASH FLOOD3 Nne Mt Baldy, CAMt Baldy Road severely impacted and closed in places due to flooding and road washouts. Mt. Baldy rd at Shin Rd was closed due to multiple land and mudslides. Stations in the area recorded 5.75-6.5 inches of rain in 24 hours.
Dec 24, 1:15 PM PSTNON-TSTM WND GST 762 Nw Running Springs, CAMesonet station HHPC1 Heaps Peak RAWS.
Dec 24, 1:15 PM PSTDEBRIS FLOW1 Nw Mt Baldy, CAMt. Baldy Road severely impacted by debris flow.
Dec 24, 1:30 PM PSTFLASH FLOOD1 S Devore, CAA new bridge and its construction site along the Glen Helen Parkway at the entrance of the Cajon Pass north of Rialto was completely overwhelmed with floodwaters washing things away and nearly toppling a truck trailer. 4 to 8 inches of rain fell north of the p
Dec 24, 2:00 PM PSTFLASH FLOODLytle Creek, CAMultiple reports of Happy Jack bridge washed out from rushing water in Lytle Creek. Area recorded 8-12 inches of rain in 24 hours.
Dec 24, 3:56 PM PSTFLOOD2 Se Lytle Creek, CAReports of multiple homes flooded in the Lytle Creek area (at least 3). Area received 7-10 inches of rain over 24 hours.
Dec 24, 3:56 PM PSTFLASH FLOOD2 Se Lytle Creek, CACorrects rainfall amount in previous flood report from 2 SE Lytle Creek. Reports of multiple homes flooded in the Lytle Creek area (at least 3). Area received 8-12 inches of rain over 24 hours.
Dec 25, 1:10 AM PSTNON-TSTM WND GST 767 N Big Bear City, CA
Dec 25, 8:20 AM PSTRAIN 2.26Big Bear City, CA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 2.6 hours before the alert went out and 180 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 00:00Z on 2025-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2025-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2390 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

867 
WWUS76 KSGX 230237
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
637 PM PST Mon Dec 22 2025

CAZ055-060-231415-
/O.UPG.KSGX.HW.A.0004.251223T2000Z-251225T2300Z/
/O.NEW.KSGX.HW.W.0005.251223T2000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Crestline, Wrightwood, Hesperia, Lake
Arrowhead, Running Springs, Big Bear Lake, Adelanto, Victorville,
Southern California Logistics Airport, Apple Valley, and Big Bear
City
637 PM PST Mon Dec 22 2025

...HIGH WIND WARNING IN EFFECT FROM NOON TUESDAY TO 3 PM PST 
THURSDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph expected. 
  Isolated gusts to 75 mph.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains. Strongest winds along the desert slopes of the 
  mountains and adjacent desert foothills.

* WHEN...From noon Tuesday to 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-231415-
/O.CON.KSGX.WI.Y.0024.251224T1100Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Huntington Beach, Corona, San Diego,
Ontario, Poway, Oceanside, Irvine, Garden Grove, Anaheim, El
Cajon, Mission Viejo, Rancho Cucamonga, Fontana, San Marcos,
Carlsbad, Moreno Valley, Santee, National City, Santa Ana,
Riverside, San Bernardino, Orange, Costa Mesa, Chula Vista,
Fullerton, La Mesa, Vista, Escondido, and Encinitas
637 PM PST Mon Dec 22 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM TO 10 PM PST 
WEDNESDAY...

* WHAT...South winds 15 to 25 mph with gusts 30 to 40 mph expected. 

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...From 3 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the 
  Inland Empire will be in the morning to early afternoon. Strongest 
  winds for San Diego county will be mid to late morning into the 
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

SS
7 follow-up statements
310 
WWUS76 KSGX 231023
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
223 AM PST Tue Dec 23 2025

CAZ055-060-232330-
/O.CON.KSGX.HW.W.0005.251223T2000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Big Bear City, Wrightwood, Lake
Arrowhead, Big Bear Lake, Hesperia, Crestline, Apple Valley,
Southern California Logistics Airport, Victorville, Adelanto, and
Running Springs
223 AM PST Tue Dec 23 2025

...HIGH WIND WARNING REMAINS IN EFFECT FROM NOON TODAY TO 3 PM PST 
THURSDAY...

* WHAT...South winds 25 to 35 mph with gusts to 60 mph expected. 
  Isolated gusts to 75 mph.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains.

* WHEN...From noon today to 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-232330-
/O.CON.KSGX.WI.Y.0024.251224T1100Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Encinitas, Poway, Orange, Riverside, San
Bernardino, Escondido, La Mesa, Vista, National City, Santa Ana,
Huntington Beach, Carlsbad, Corona, Anaheim, Irvine, Garden
Grove, Costa Mesa, Fullerton, Fontana, Mission Viejo, Ontario,
Moreno Valley, San Marcos, El Cajon, Chula Vista, Oceanside,
Rancho Cucamonga, Santee, and San Diego
223 AM PST Tue Dec 23 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM TO 10 PM PST 
WEDNESDAY...

* WHAT...South winds 15 to 25 mph with gusts to 40 mph expected. 

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...From 3 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the 
  Inland Empire will be in the morning to early afternoon. Strongest 
  winds for San Diego county will be mid to late morning into the 
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

17
377 
WWUS76 KSGX 232031
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1231 PM PST Tue Dec 23 2025

CAZ055-060-240615-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Southern California Logistics Airport,
Big Bear Lake, Apple Valley, Victorville, Hesperia, Running
Springs, Big Bear City, Lake Arrowhead, Wrightwood, Adelanto, and
Crestline
1231 PM PST Tue Dec 23 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY...

* WHAT...South winds 25 to 35 mph with gusts to 60 mph expected. 
  Isolated gusts to 75 mph. Strongest winds will be on the desert 
  slopes of the San Bernardino mountains.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-240615-
/O.CON.KSGX.WI.Y.0024.251224T1100Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Santee, Corona, Huntington Beach,
Carlsbad, Moreno Valley, National City, Mission Viejo, El Cajon,
Anaheim, Fullerton, Chula Vista, San Bernardino, Orange, La Mesa,
San Diego, Irvine, Ontario, Escondido, Poway, Vista, Rancho
Cucamonga, Santa Ana, Fontana, San Marcos, Oceanside, Riverside,
Encinitas, Garden Grove, and Costa Mesa
1231 PM PST Tue Dec 23 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM TO 10 PM PST 
WEDNESDAY...

* WHAT...South winds 15 to 25 mph with gusts 30 to 40 mph expected, 
  locally up to 45 mph possible.

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...From 3 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the 
  Inland Empire will be in the morning to early afternoon. Strongest 
  winds for San Diego county will be mid to late morning into the 
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

CO
413 
WWUS76 KSGX 240520
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
920 PM PST Tue Dec 23 2025

CAZ055-060-241430-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Crestline, Adelanto, Lake Arrowhead,
Wrightwood, Apple Valley, Big Bear City, Southern California
Logistics Airport, Victorville, Hesperia, Running Springs, and
Big Bear Lake
920 PM PST Tue Dec 23 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY...

* WHAT...South winds 25 to 35 mph with gusts to 60 mph expected. 
  Isolated gusts to 75 mph. Strongest winds will be on the desert 
  slopes of the San Bernardino mountains.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-241430-
/O.CON.KSGX.WI.Y.0024.251224T1100Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of National City, Santee, Rancho Cucamonga,
Huntington Beach, Carlsbad, La Mesa, Corona, San Diego, Fontana,
Poway, Orange, Riverside, El Cajon, Anaheim, Oceanside, Garden
Grove, Encinitas, Ontario, Irvine, Chula Vista, Santa Ana, San
Bernardino, Fullerton, Vista, Escondido, Mission Viejo, Moreno
Valley, San Marcos, and Costa Mesa
920 PM PST Tue Dec 23 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 3 AM TO 10 PM PST 
WEDNESDAY...

* WHAT...South winds 15 to 25 mph with gusts 30 to 40 mph expected, 
  locally up to 45 mph possible at the beaches.

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...From 3 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the 
  Inland Empire will be in the morning to early afternoon. Strongest 
  winds for San Diego county will be mid to late morning into the 
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

SS
995 
WWUS76 KSGX 241021
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
221 AM PST Wed Dec 24 2025

CAZ055-060-242300-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Lake Arrowhead, Victorville, Apple
Valley, Running Springs, Southern California Logistics Airport,
Hesperia, Adelanto, Wrightwood, Crestline, Big Bear Lake, and Big
Bear City
221 AM PST Wed Dec 24 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY...

* WHAT...South winds 30 to 40 mph through this afternoon with gusts 
  of 55 to 75 mph are expected. Then south 25 to 35 mph with gusts 
  to 50 to 60 mph for tonight into Thursday afternoon.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains. The strongest winds are expected along and near the 
  desert slopes of the mountains with isolated gusts to 90 mph 
  through this afternoon.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-242300-
/O.CON.KSGX.WI.Y.0024.251224T1100Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Santa Ana, Escondido, Riverside,
Fullerton, San Marcos, Encinitas, Santee, Moreno Valley, Poway,
Anaheim, San Bernardino, National City, La Mesa, Irvine,
Oceanside, San Diego, Fontana, Costa Mesa, Carlsbad, Garden
Grove, Mission Viejo, Orange, Ontario, Corona, Rancho Cucamonga,
Huntington Beach, El Cajon, Vista, and Chula Vista
221 AM PST Wed Dec 24 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...South winds 20 to 30 mph with gusts to 45 mph expected.

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the 
  Inland Empire will be in the morning to early afternoon. Strongest 
  winds for San Diego county will be mid to late morning into the 
  evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

17
932 
WWUS76 KSGX 242112
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
112 PM PST Wed Dec 24 2025

CAZ055-060-250600-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Crestline, Victorville, Big Bear Lake,
Apple Valley, Wrightwood, Running Springs, Southern California
Logistics Airport, Adelanto, Hesperia, Big Bear City, and Lake
Arrowhead
112 PM PST Wed Dec 24 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY...

* WHAT...South winds 30 to 40 mph through this afternoon with gusts 
  of 55 to 80 mph are expected. Then south 25 to 35 mph with gusts 
  to 50 to 60 mph for tonight into Thursday afternoon.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

CAZ043-048-050-057-552-554-250600-
/O.CON.KSGX.WI.Y.0024.000000T0000Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Encinitas, Santa Ana, Huntington Beach,
San Diego, Orange, Ontario, San Bernardino, Rancho Cucamonga, La
Mesa, Carlsbad, Escondido, El Cajon, Moreno Valley, Riverside,
San Marcos, Costa Mesa, Corona, Santee, Fullerton, Fontana,
Poway, Chula Vista, Irvine, Garden Grove, Mission Viejo, National
City, Vista, Anaheim, and Oceanside
112 PM PST Wed Dec 24 2025

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...South winds 20 to 30 mph with gusts to 45 mph, locally 
  higher, expected.

* WHERE...Orange County Coastal Areas, Orange County Inland Areas, 
  San Bernardino and Riverside County Valleys-The Inland Empire, San 
  Diego County Coastal Areas, San Diego County Valleys, and Santa 
  Ana Mountains and Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

CO
114 
WWUS76 KSGX 250606
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1006 PM PST Wed Dec 24 2025

CAZ043-048-050-057-552-554-250715-
/O.EXP.KSGX.WI.Y.0024.000000T0000Z-251225T0600Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Santa
Ana Mountains and Foothills-Orange County Coastal Areas-Orange
County Inland Areas-
Including the cities of Fontana, Escondido, Orange, San
Bernardino, Santa Ana, Anaheim, La Mesa, Santee, Huntington
Beach, Carlsbad, Garden Grove, Riverside, Costa Mesa, Ontario,
Fullerton, Mission Viejo, Moreno Valley, Rancho Cucamonga,
Encinitas, San Diego, Irvine, El Cajon, Chula Vista, Corona,
National City, Vista, Oceanside, San Marcos, and Poway
1006 PM PST Wed Dec 24 2025

...WIND ADVISORY HAS EXPIRED...

Winds have decoupled and weakened enough to allow for the Wind 
Advisory to expire.

$$

CAZ055-060-251415-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Crestline, Victorville, Running Springs,
Big Bear City, Apple Valley, Lake Arrowhead, Southern California
Logistics Airport, Hesperia, Wrightwood, Big Bear Lake, and
Adelanto
1006 PM PST Wed Dec 24 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 65 mph.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain in the lower levels of your home during the windstorm, and 
avoid windows. Watch for falling debris and tree limbs. Use caution 
if you must drive.

&&

$$

PS
448 
WWUS76 KSGX 251054
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
254 AM PST Thu Dec 25 2025

CAZ055-060-252300-
/O.CON.KSGX.HW.W.0005.000000T0000Z-251225T2300Z/
San Bernardino County Mountains-Apple and Lucerne Valleys-
Including the cities of Southern California Logistics Airport,
Crestline, Apple Valley, Victorville, Running Springs, Big Bear
Lake, Adelanto, Lake Arrowhead, Hesperia, Big Bear City, and
Wrightwood
254 AM PST Thu Dec 25 2025

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS 
AFTERNOON...

* WHAT...Southwest winds 20 to 30 mph with gusts to 55 mph expected, 
  with gusts to 75 mph in the Lucerne Valley below the foothills of 
  the San Bernardino Mountains.

* WHERE...Apple and Lucerne Valleys and San Bernardino County 
  Mountains. Strongest winds along and below the desert slopes of 
  the mountains.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially 
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Watch for falling debris and tree limbs. Use caution if you must 
drive.

&&

$$

17

What forecasters said that day

The local office's own words before this high wind 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 high wind warning went out at Dec 22, 1:41 PM PST, 4 hours 56 minutes earlier.

Area forecast discussion, Dec 22, 1:41 PM PST, 4 hours 56 minutes before
Area Forecast Discussion
National Weather Service San Diego CA
141 PM PST Mon Dec 22 2025

.SYNOPSIS...
An Atmospheric River will bring widespread heavy rain and mountain
snow above 8000 ft late Tuesday into Wednesday, with more scattered
showers continuing into Thursday (Christmas Day). Gusty southerly
winds can be expected across much of the area, including near the
coast and over the coastal waters on Wednesday. There are additional
chances for widespread rain, mountain snow, and elevated winds in
the mountains and deserts Friday through Sunday with decreasing
chances into Sunday.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

Key Points:

* Widespread moderate to heavy rainfall Christmas Eve with the
  potential for roadway flooding and localized flash flooding from
  the coast to deserts. Rapid rises in small streams and increased
  flow in main stem rivers expected.

* Snow levels are forecast to remain above 8000 ft into Christmas
  morning, increasing potential for rock and mudslides along
  mountain highways, and debris flows in and below burn scars,
  especially in the San Bernardino County mountains.

* Gusty southerly winds are expected across the area with wind gusts
  30 to 45 mph on Wednesday for the coast and valleys and Tuesday
  afternoon through Thursday evening for the San Bernardino
  mountains and High Desert. Make sure to secure outdoor furniture.
  Tree damage is possible.

* Additional chances of rain, wind, and mountain snow Thursday night
  through Sunday. Snow levels are expected to lower to 6500-7000 ft
  by Friday morning and 5000-5500 ft by the weekend creating slick
  conditions on mountain highways.

An Atmospheric River is still on track to impact Southern California
on Wednesday. Periods of light to locally moderate rain may begin as
early as mid-day Tuesday with increasing chances of precipitation
into the overnight hours. Overnight Tuesday locally heavy rain may
develop, most likely on the coastal slopes of the San Bernardino
County mountains. The heaviest and most widespread rain is expected
through the day Wednesday, with the heavy rain moving northwest to
southeast from Orange County to San Diego County deserts. After the
rain band passes, scattered showers are expected to continue with
locally heavy rain into Thursday morning (Christmas Day). Latest
guidance shows a significant decrease in IVT (atmospheric moisture)
during the day Thursday, bringing the potential for periods no
precipitation. Snow levels are expected to remain quite high through
the duration of the heaviest precipitation, but are expected to
lower later in the week. Please see the Hydrology section below for
more information on expected rainfall rates, totals, and snow level
information. In addition to periods of heavy rain, gusty south winds
are expected. South winds are expected to increase on Tuesday
afternoon, with the strongest winds expected during the day
Wednesday. Peak wind gusts of 60-70 mph, locally up to 80 mph
possible on the coastal slopes of the San Bernardino County
mountains with gusts 45-65 mph into the High Desert. Winds will stay
elevated in San Bernardino county mountains and High Desert into
Thursday. For the coasts and valleys gust of 30-45 mph are expected,
with the strongest winds expected with the main band of rain.

There still remains some uncertainty in the upper level pattern for
late Thursday through Sunday. Global models continue to struggle
with the progression of the low pressure system that develops near
the Gulf of Alaska. The solutions with more ECMWF ensemble members
show a faster eastward movement of the low which would bring
additional chances of more widespread precipitation to the area as
early as late Thursday continuing into Friday, with scattered light
showers or dry conditions by the weekend. Solutions with more input
from GEFS members show a slower eastward progression of the low
which would continue our precipitation chances into at least Sunday.
In addition to rain and mountain snow chances winds are expected to
increase over the mountains and into the deserts, with timing of the
strongest winds dependent on timing and position of the incoming
trough. We will have to see how this evolves over the next few days,
but overall the rain for late into the week into the weekend looks
far less impactful, though snow could make travel difficult in the
mountains should the snow level lower enough.

&&

.AVIATION...
222100Z....Coast/Valleys...Fog has cleared the southern portions of
the San Diego coast with the Orange County coast clearing after 20Z.
Low clouds will linger along the immediate coast in areas through
the afternoon, before moving back onshore after 23/00Z. Bases
initially 700-900 ft MSL will steadily rise overnight, likely to
above 1500 ft MSL by 12Z Tuesday, and clouds will spread to cover
the coastal basin. Areas of DZ early Tues morning will locally lower
cigs/vis through the end of the TAF period.

Otherwise...SCT-BKN high clouds with unrestricted VIS continues
through Tuesday morning.

&&

.MARINE...

No hazardous marine conditions expected through Tuesday morning. An
approaching storm system will lead to strengthening winds and
building seas beginning Tuesday afternoon. Winds initially around 15-
20 kts gusting to 25 kts Tuesday afternoon will increase late
Tuesday night, potentially to gale force with wind gusts upwards of
30-35 kts. This will bring steep seas of 7-10 feet. Additionally,
periods of moderate to heavy rain Wednesday will lead to areas of
poor visibility. Strong winds and steep seas are expected to
continue through early Thursday morning. Winds will weaken slightly
by Thursday morning, but likely remain hazardous to small craft
through most of the day. Winds weaken and turn northwesterly
Friday.

&&

.BEACHES...
Frontal winds begin to make their way into the area Tuesday night
into the early morning hours wednesday creating gusty winds and
elevated surf heights of 6 to 8 ft. This will create hazardous
swimming conditions at area beaches through Saturday morning.

&&

.HYDROLOGY...
While moderate to locally heavy rain may begin Tuesday evening
(especially for the mountains)guidance is coming into better
alignment that the heaviest and most widespread rainfall is expected
through the day Wednesday. Rain will move from northwest to
southeast through the day Wednesday, with scattered showers
lingering into the overnight hours and Christmas morning. Those
scattered showers may be locally heavy. Additionally there is a
slight chance of thunderstorms for Wednesday evening into early
Thursday morning and heavy rain is expected where thunderstorms
develop. Peak rainfall rates are expected to range from 0.5-1 inch
per hour, with the potential to be locally higher where embedded
convective showers or thunderstorms develop. The coastal slopes of
the San Bernardino mountains are expected to receive a significant
amount of rainfall due to strong southerly flow aloft (30-50 kt)
allowing for orographic enhancement of rainfall and the warm airmass
preventing snow formation below 8000 ft during the heaviest
precipitation.

For the San Bernardino/San Gabriel Mountains Tuesday afternoon
through early Thursday the current deterministic forecast is:
- Cajon Pass westward: 7-10", locally higher
- East of Cajon Pass: 5-8"

For remaining areas current deterministic forecast for Tuesday
afternoon through early Thursday is:
- Orange County: 3-4", highest north
- Inland Empire: 2.5-4", highest northwest
- San Diego County Coasts/Valleys: 2-3.5", highest north
- Santa Ana Mountains: 3-5"
- Riverside/San Diego County Mountains: 3-5"
- High Desert: 1.5-3", highest west
- Low Deserts: 0.75-1.5", locally 2.5" near the San Gorgonio Pass

The higher rainfall amounts in the deterministic ranges above will
likely be more localized to where heavier, more convective bands of
rainfall develop.

Most of the precipitation across southwestern California through
Christmas morning is expected to fall as rain with snow levels
remaining above 7500-8000 feet. Snow levels could drop to 6500-7000
ft by Friday morning, potentially down to 5000-5500 ft by the
weekend.

The San Diego River at Fashion Valley and the Santa Margarita River
at Ysidora are currently expected to reach Action/Monitor stage.
Based on current forecast, the San Diego river is expected to peak
at 8.9 ft early Thursday morning with the Santa Margarita expected
to peak at 11.5 ft late Wednesday night. Interested parties should
continue to monitor the river forecast as the forecasted peak and
timing are highly dependent on the timing of the heaviest rainfall.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory from 11 PM Tuesday to 11 AM PST Saturday for
     Orange County Coastal Areas-San Diego County Coastal Areas.

     Wind Advisory from 3 AM to 10 PM PST Wednesday for Orange County
     Coastal Areas-Orange County Inland Areas-San Bernardino and
     Riverside County Valleys-The Inland Empire-San Diego County
     Coastal Areas-San Diego County Valleys-Santa Ana Mountains
     and Foothills.

     Flood Watch from late Tuesday night through late Wednesday night
     for San Diego County Coastal Areas-San Diego County Deserts-
     San Diego County Mountains-San Diego County Valleys.

     Flood Watch from Tuesday afternoon through Wednesday evening for
     Apple and Lucerne Valleys-Coachella Valley-Orange County
     Coastal Areas-Orange County Inland Areas-Riverside County
     Mountains-San Bernardino County Mountains-San Bernardino
     and Riverside County Valleys-The Inland Empire-San Gorgonio
     Pass near Banning-Santa Ana Mountains and Foothills.

     High Wind Watch from Tuesday afternoon through Thursday
     afternoon for Apple and Lucerne Valleys-San Bernardino
     County Mountains.

PZ...Gale Watch from Tuesday afternoon through Wednesday afternoon
     for Coastal Waters from San Mateo Point to the Mexican
     Border and out to 10 nm-Waters from San Mateo Point to the
     Mexican Border Extending 10 to 60 nm out including San
     Clemente Island.

&&

PUBLIC...CO
AVIATION/MARINE/BEACHES...Villafane

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 23, 1:33 AM PSTHigh Surf AdvisorySGXOrange, San Diego4 days
Dec 23, 1:41 AM PSTGale WarningSGX38 hr

Nearby

High Wind Warnings in California, 2025Every high wind 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.