California, 2023Winter Storm and High Wind in California, February 27 to 28, 2023
February 27 to 28, 2023 · NWS SGX · 4 events in 4 counties and zones
A very powerful winter storm produced additional heavy snow and high wind over portions Southern California still recovering from historic amounts of snowfall. This event eventually set multiple multi-day snowfall records, and required an extensive recovery period that lasted through March.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
A very powerful winter storm produced additional heavy snow and high wind over portions Southern California still recovering from historic amounts of snowfall. This event eventually set multiple multi-day snowfall records, and required an extensive recovery period that lasted through March. Accumulating snow and high winds continued over into March 1st and 2nd, the totals and reports of which are reflected in a separate episode and event.
What forecasters said that day
The local office's own words before the first event, 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 the first event at Feb 27, 2:00 PM PST, 1 hour earlier.
Area forecast discussion, Feb 27, 2:00 PM PST, 1 hour before
Area Forecast Discussion
National Weather Service San Diego CA
200 PM PST Mon Feb 27 2023
.SYNOPSIS...
Low pressure aloft will bring occasional rounds of rain and mountain
snow this afternoon through Tuesday, becoming heavier and more
widespread Tuesday night and Wednesday. Strong winds will occur at
times through Wednesday, especially in the mountains and deserts.
Fair weather will return Thursday and continue through the weekend,
with another chance of precipitation early next week.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
Precipitation has moved into much of Orange County and western and
northern parts of the Inland Empire and through much of the San
Bernardino Mountains early this afternoon. Amounts so far have been
less than 1/10 inch, though some of the gauges in the mountains show
melting snow from previous snowfall. The precip will gradually move
east and southeast through this evening and continue overnight as
additional weak shortwaves move through the region. Timing will
be the key for the precipitation through Tuesday as periods of
mostly light precip occurs. Snowfall will be variable due to the
showery nature of the precip in the mountains, but will generally be
3-6 inches in the San Bernardino County Mountains through Tuesday,
which will add to the issues with previous snow/snow removal/road
closures there.
The main wave with the broad West Coast trough will move through
southern Nevada Wednesday, and with strong west flow over SoCal and
a weak atmospheric river, there will be more precipitation, locally
heavy. This will be a cold storm, though some brief warming could
occur Tuesday night with the atmospheric river. Snow levels of 4000-
4500 feet initially should fall to around 2500 feet north of San
Diego County by Wednesday afternoon, with NBM 1-D viewer showing the
snow level possibly down to 1500 feet around SBD when some light
lingering precip occurs late Wednesday afternoon. Total snowfall
Tuesday night-Wednesday of one to two feet will be possible in parts
of the mountains, especially west and southwest slopes, though San
Diego County will be mostly below one foot. Winds will add to the
winter storm threat with gusts to 80 MPH possible from the crests
into the desert slopes, and blowing and drifting of snow will occur.
High-resolution models indicate rainfall rates locally over 1/3 inch
per hour along somewhat convective bands, but that should remain
below flash flood guidance, and the thunderstorm chance is rather
small, less than 15% during any 6 hourly period and CAPE values
mostly 250 J/kg or less, even over the warmer surface of the ooastal
waters. General total precip through Wednesday evening will be
around 1/2" near the coast, 1/2" to 1" in the valleys, with local 2-
4" of liquid on the coastal mountain slopes.
After the main trough moves east, warmer weather with weak offshore
flow to the north will occur Thursday, though temperatures remain
below normal through next weekend. Waves will continue to move east
across the Pacific west of the Pac NW/Canada to maintain the
longwave trough over really much of North America. Cluster analysis
shows some hint of at least zonal flow or even slight ridging over
SoCal and the southern part of the wetsern US early next week, about
a 35% chance of the GEFS/EPS/Canadian ensembles, but the other
solutions keep the West Coast trough pattern which would likely
bring another round of precipitation sometime early next week. There
is a rather large range of potential high temperatures then from
basically the 50s to perhaps just beyond 70 in near-coastal areas.
&&
.AVIATION...
272120Z...Mainly BKN clouds with bases 3000-5000 feet MSL as a band
of -SHRA moves through the region (except deserts) from northwest to
southeast through about 05Z this afternoon and evening. Cloud bases
would lower briefly to 2500 feet MSL and vis to 3-5SM in
SHRA. Coastal slopes of the mountains occasionally obscured in
clouds below 8000 feet MSL. Another band of -SHRA will pass through
with similar effect on clouds/vis 08-16Z Tuesday with stronger winds
expected and heavier showers expected. Confidence in the height of
the low cloud bases in the KSAN TAF is moderate.
Winds will increase over the mountains and deserts this evening
with sfc gusts 30-40 kts with isolated gusts to 50 kts along the
wind prone desert slopes. Locally moderate up and downdrafts can be
expected over the mountains and desert slope regions. These winds
will shift from southwesterly to become northwesterly by
Tuesday night, increase in strength, and continue through Wednesday.
&&
.MARINE...
Winds will strengthen and seas will build late Tuesday, leading to
strong winds and hazardous boating conditions Tuesday afternoon
through Wednesday night. West to northwest gales 20 to 30 kt with
gusts to 40 kt are expected Tuesday afternoon and continue through
Wednesday. No hazardous marine conditions are expected today
through Tuesday morning before the winds and seas begin to increase.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Winter Storm Warning until 4 PM PST Wednesday for San Bernardino
County Mountains.
Winter Storm Warning from 6 PM this evening to 10 PM PST
Wednesday for Riverside County Mountains-San Diego County
Mountains.
High Wind Warning from 2 PM Tuesday to 10 PM PST Wednesday for
Apple and Lucerne Valleys-San Diego County Deserts-San
Gorgonio Pass Near Banning.
High Wind Warning from 6 AM to 10 PM PST Wednesday for Coachella
Valley.
PZ...Gale Watch from Tuesday afternoon through Wednesday evening for
Coastal Waters from San Mateo Point to the Mexican Border
and out to 30 nm-Waters from San Mateo Point to the Mexican
Border Extending 30 to 60 nm out including San Clemente
Island.
&&
PUBLIC...Maxwell
AVIATION/MARINE...SmallIn the hours before
Local storm report, Feb 27, 9:38 AM PST, 5 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
938 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HEAVY SNOW 3 E BIG BEAR LAKE 34.24N 116.89W
02/26/2023 M75.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
BEAR MOUNTAIN SNOW SUMMIT 7000 TO 7500 FEET
TOTAL SNOWFALL FROM WEDNESDAY THROUGH EARLY
SUNDAY.
&&
AOTLocal storm report, Feb 27, 9:42 AM PST, 5 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
942 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM SNOW 1 N SANTA YSABEL 33.11N 116.68W
02/26/2023 M3.0 INCH SAN DIEGO CA BROADCAST MEDIA
3 INCHES OF SNOW, PHOTOS BY MEDIA. ELEVATION
3000 FEET.
&&
AOTLocal storm report, Feb 27, 9:43 AM PST, 5 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
943 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM SNOW 1 NW ANZA 33.56N 116.67W
02/26/2023 M8.0 INCH RIVERSIDE CA TRAINED SPOTTER
ELEVATION 3900 FEET. TOTAL SNOWFALL.
&&
AOTLocal storm report, Feb 27, 9:44 AM PST, 5 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
944 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0959 AM SNOW MT LAGUNA 32.87N 116.42W
02/26/2023 M29.0 INCH SAN DIEGO CA CO-OP OBSERVER
STORM TOTAL SNOWFALL SINCE WEDNESDAY.
&&
AOTLocal storm report, Feb 27, 9:47 AM PST, 5 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
947 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM SNOW 1 NNW FONTANA 34.11N 117.44W
02/25/2023 E1.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
VIDEO SHOWING 1 INCH OF SNOWFALL IN FONTANA
AT 1150 FEET.
&&
AOTLocal storm report, Feb 27, 9:53 AM PST, 5 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SAN DIEGO CA
953 AM PST MON FEB 27 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HEAVY SNOW 3 E BIG BEAR LAKE 34.24N 116.89W
02/26/2023 M75.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
BEAR MOUNTAIN SNOW SUMMIT 7000 TO 7500 FEET
TOTAL SNOWFALL FROM WEDNESDAY THROUGH EARLY
SUNDAY.
1031 AM SNOW WRIGHTWOOD 34.36N 117.64W
02/26/2023 M55.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
HIGHWAY 2 IS ONE LANE WITH 7 FT. TUNNEL.
CHAINS REQUIRED.
0959 AM SNOW MT LAGUNA 32.87N 116.42W
02/26/2023 M29.0 INCH SAN DIEGO CA CO-OP OBSERVER
STORM TOTAL SNOWFALL SINCE WEDNESDAY.
0900 AM SNOW 1 NW ANZA 33.56N 116.67W
02/26/2023 M8.0 INCH RIVERSIDE CA TRAINED SPOTTER
ELEVATION 3900 FEET. TOTAL SNOWFALL.
0808 AM HEAVY SNOW 1 SE CRESTLINE 34.24N 117.28W
02/26/2023 M63.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
4900 FEET. SINCE WEDNESDAY. SAN BERNARDINO
COUNTY PUBLIC WORKS.
0804 AM SNOW 1 E IDYLLWILD 33.75N 116.70W
02/26/2023 M17.0 INCH RIVERSIDE CA TRAINED SPOTTER
17 STORM TOTAL AVERAGE. SETTLING AND WIND
DRIFTS SO HARD TO MEASURE AND COULD BE 20
INCHES. ELEVATION 5630.
0800 AM HEAVY SNOW 2 E RUNNING SPRINGS 34.21N 117.08W
02/26/2023 M65.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
ARROWBEAR AT 6200 FEET. SAN BERNARDINO
PUBLIC WORKS. SINCE WEDNESDAY.
0800 AM HEAVY SNOW 1 NW MT BALDY 34.24N 117.66W
02/26/2023 M27.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
MT BALDY VILLAGE AT 4200 FEET. SAN
BERNARDINO PUBLIC WORKS.
0800 AM HEAVY SNOW 6 NW FOREST FALLS 34.14N 116.98W
02/26/2023 M33.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
ANGELUS OAKS AT 5800 FEET REPORTED BY SAN
BERNARDINO COUNTY PUBLIC WORKS.
0800 AM HEAVY SNOW 1 E FOREST FALLS 34.08N 116.90W
02/26/2023 M36.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
FOREST FALLS AT 5900 FEET REPORTED BY SAN
BERNARDINO COUNTY PUBLIC WORKS.
0800 AM HEAVY SNOW 1 SSW LYTLE CREEK 34.24N 117.50W
02/26/2023 M27.0 INCH SAN BERNARDINO CA PUBLIC
LYTLE CREEK AT 3400 FEET REPORTED BY SAN
BERNARDINO PUBLIC WORKS. 24 PAST 24 HOURS.
0800 AM HEAVY SNOW 1 NW DEVORE 34.24N 117.42W
02/26/2023 M20.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
DEVORE AT 2700 FEET REPORTED BY SAN
BERNARDINO COUNTY PUBLIC WORKS. MOST OF THIS
PAST 24 HOURS.
0800 AM HEAVY SNOW 3 WSW BIG BEAR CITY 34.25N 116.88W
02/26/2023 M40.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
BIG BEAR YARD REPORTED BY SAN BERNARDINO
COUNTY PUBLIC WORKS. SINCE WEDNESDAY.
0800 AM HEAVY SNOW LAKE ARROWHEAD 34.25N 117.19W
02/26/2023 M68.0 INCH SAN BERNARDINO CA PUBLIC
LAKE ARROWHEAD, SAN BERNARDINO COUNTY PUBLIC
WORKS. SINCE WEDNESDAY AT 5200 FEET.
0800 AM HEAVY SNOW 3 NE RUNNING SPRINGS 34.24N 117.08W
02/26/2023 M70.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
GREEN VALLEY LAKE AT 6900 FEET. SAN
BERNARDINO PUBLIC WORKS. SINCE WEDNESDAY.
STATE HIGHWAYS CLOSED.
0800 AM HEAVY SNOW 2 E RUNNING SPRINGS 34.22N 117.08W
02/26/2023 E71.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
RIM OF THE WORLD HIGHWAY 18. SAN BERNARDINO
PUBLIC WORKS AT 6200 FEET SINCE WEDNESDAY.
STATE HIGHWAYS ARE CLOSED.
0800 AM HEAVY SNOW 3 NNE MT BALDY 34.27N 117.62W
02/26/2023 M77.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
END OF BALDY ROAD AT 6300 FEET. SAN
BERNARDINO PUBLIC WORKS.
0800 AM SNOW 1 N SANTA YSABEL 33.11N 116.68W
02/26/2023 M3.0 INCH SAN DIEGO CA BROADCAST MEDIA
3 INCHES OF SNOW, PHOTOS BY MEDIA. ELEVATION
3000 FEET.
0800 AM SNOW 3 E BIG BEAR LAKE 34.24N 116.89W
02/26/2023 M63.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
BEAR MOUNTAIN SNOW SUMMIT AT 7200 FEET.
SINCE WEDNESDAY.
0800 AM SNOW 4 ENE RUNNING SPRINGS 34.22N 117.04W
02/26/2023 M84.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
SNOW VALLEY RESORT ON HIGHWAY 18. 75 TO 84
INCHES. 7000 TO 7500 FEET. TOTALS SINCE
WEDNESDAY.
0800 AM SNOW DEVORE 34.23N 117.40W
02/26/2023 M12.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
DEVORE HEIGHTS AT 2600 FEET. 10 INCHES ON
SATURDAY.
0800 AM SNOW 3 SSW FOREST FALLS 34.04N 116.93W
02/26/2023 M26.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
OAK GLEN AT 4900 FEET. SAN BERNARDINO COUNTY
PUBLIC WORKS.
0800 AM SNOW 1 SSW PHELAN 34.42N 117.57W
02/26/2023 M6.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
DESERT SIDE. PAST 2 DAYS. PUBLIC WORKS
REPORT.
0800 AM SNOW WRIGHTWOOD 34.36N 117.63W
02/26/2023 M41.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
WRIGHTWOOD AT 5900 FEET. REPORTED BY PUBLIC
WORKS. SINCE WEDNESDAY. 32 INCHES PAST 2
DAYS.
0800 AM SNOW 8 WSW HESPERIA 34.39N 117.43W
02/26/2023 M6.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
TOP OF CAJON PASS DESERT SIDE. 3800 FEET.
SAN BERNARDINO PUBLIC WORKS.
0800 AM SNOW 1 WNW PALOMAR MOUNTAIN 33.32N 116.88W
02/26/2023 M32.0 INCH SAN DIEGO CA TRAINED SPOTTER
BIRCH HILL AT 5700 FEET. STORM TOTAL.
0800 AM SNOW 3 WNW VICTORVILLE 34.52N 117.37W
02/26/2023 M1.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
VICTORVILLE REPORTED BY PUBLIC WORKS.
SATURDAY SNOWFALL. 2700 FEET.
0800 AM SNOW 4 NE APPLE VALLEY 34.57N 117.16W
02/26/2023 M2.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
ON SATURDAY. SAN BERNARDINO COUNTY PUBLIC
WORKS. 3000 FEET.
0759 AM SNOW 1 ESE PALOMAR MOUNTAIN 33.31N 116.85W
02/26/2023 M32.0 INCH SAN DIEGO CA TRAINED SPOTTER
STORM TOTAL IS 32 WITH 4 INCHES OVERNIGHT AT
BIRCH HILL AT 5700 FEET.
0711 AM HEAVY RAIN 2 NNW ALISO VIEJO 33.60N 117.74W
02/26/2023 M0.90 INCH ORANGE CA TRAINED SPOTTER
PAST 24 HOURS. STORM TOTAL IS 2.65.
0700 AM HEAVY SNOW PALOMAR MOUNTAIN 33.31N 116.87W
02/26/2023 E28.0 INCH SAN DIEGO CA FIRE DEPT/RESCUE
REPORTED BY CALFIRE AND SHOWN ON CAMERA WITH
STAKE. SINCE WEDNESDAY.
0700 AM SNOW 1 ENE IDYLLWILD 33.75N 116.72W
02/26/2023 M17.0 INCH RIVERSIDE CA TRAINED SPOTTER
HARD TO MEASURE WITH DRIFTING AND SETTLING.
16 TO 19 INCHES.
1252 AM HAIL BONITA 32.68N 117.01W
02/26/2023 E0.25 INCH SAN DIEGO CA TRAINED SPOTTER
1159 PM HEAVY RAIN 2 WSW EL CAJON 32.79N 116.99W
02/25/2023 M1.36 INCH SAN DIEGO CA TRAINED SPOTTER
SATURDAY RAINFALL.
1059 PM SNOW 1 ESE PALOMAR MOUNTAIN 33.31N 116.85W
02/25/2023 M27.5 INCH SAN DIEGO CA TRAINED SPOTTER
STORM TOTAL SNOW OF 27.5 INCHES.
1058 PM HAIL BONITA 32.68N 117.01W
02/25/2023 M0.25 INCH SAN DIEGO CA TRAINED SPOTTER
1040 PM HAIL 1 W LA MESA 32.77N 117.03W
02/25/2023 E0.25 INCH SAN DIEGO CA TRAINED SPOTTER
SPOTTER REPORT OF PEA SIZE HAIL AND HEAVY
RAIN IN WESTERN LA MESA.
0750 PM HAIL 4 ESE TEMECULA 33.48N 117.11W
02/25/2023 M0.25 INCH RIVERSIDE CA TRAINED SPOTTER
SMALL PELLET SIZED HAIL FOR TWO MINUTES.
FROZEN PRECIP. WAS HARD/SOLID; NOT CRUSHABLE
LIKE GRAUPEL IS.
0715 PM SNOW 2 ESE HESPERIA 34.41N 117.26W
02/25/2023 M4.5 INCH SAN BERNARDINO CA TRAINED SPOTTER
SNOW BEGAN 630 AM ON SATURDAY.
0655 PM HEAVY RAIN 5 WNW RIVERSIDE 34.01N 117.47W
02/25/2023 M0.97 INCH RIVERSIDE CA TRAINED SPOTTER
SATURDAY RAINFALL IN JURUPA VALLEY.
0600 PM HEAVY RAIN RANCHO BERNARDO 33.02N 117.08W
02/25/2023 M1.38 INCH SAN DIEGO CA PUBLIC
TODAYS RAINFALL REPORT FROM THE NWS OFFICE
IN RANCHO BERNARDO.
0547 PM HEAVY SNOW 1 W WRIGHTWOOD 34.36N 117.65W
02/25/2023 M51.0 INCH SAN BERNARDINO CA PUBLIC
TOTAL ON GROUND IN WEST WRIGHTWOOD,
ELEVATION IS 6275 FEET. STILL SNOWING AND
22.8F.
0448 PM SNOW WRIGHTWOOD 34.36N 117.64W
02/25/2023 M40.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
STORM TOTAL AND STILL SNOWING.
0435 PM SNOW 1 W WRIGHTWOOD 34.36N 117.65W
02/25/2023 M49.0 INCH SAN BERNARDINO CA PUBLIC
STORM TOTAL AT 6275 - STILL SNOWING.
0430 PM HEAVY SNOW PHELAN 34.44N 117.56W
02/25/2023 M11.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
SNOW TOTAL FOR TODAY. HEAVY SNOW OCCURRING
AT 430 PM WITH 1/4 MILE VISIBLITY.
0400 PM HEAVY RAIN SAN MARCOS 33.14N 117.17W
02/25/2023 M1.73 INCH SAN DIEGO CA TRAINED SPOTTER
CORRECTS PREVIOUS HEAVY RAIN REPORT FROM SAN
MARCOS. TODAYS TOTAL WAS MEASURED 1.73
INCHES.
0315 PM HEAVY RAIN 1 N LEMON GROVE 32.75N 117.02W
02/25/2023 M0.73 INCH SAN DIEGO CA TRAINED SPOTTER
DOOR MAT COVERED WITH SMALL HAIL; VIOLENT
FOR HERE STORM CELL.
0314 PM HAIL 1 N LEMON GROVE 32.75N 117.02W
02/25/2023 M0.25 INCH SAN DIEGO CA TRAINED SPOTTER
0227 PM FLOOD 1 SE SANTA ANA 33.73N 117.87W
02/25/2023 ORANGE CA PUBLIC
REPORT FROM MPING: STREET/ROAD FLOODING;
STREET/ROAD CLOSED; VEHICLES STRANDED.
0200 PM SNOW 1 NNW FONTANA 34.11N 117.44W
02/25/2023 E1.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
VIDEO SHOWING 1 INCH OF SNOWFALL IN FONTANA
AT 1150 FEET.
0111 PM HEAVY RAIN 9 WNW LAKE ELSINORE 33.74N 117.45W
02/25/2023 M2.60 INCH RIVERSIDE CA TRAINED SPOTTER
RAINFALL TOTAL PAST 2 DAYS.
0100 PM SNOW 1 NNW DEVORE 34.23N 117.41W
02/25/2023 M8.5 INCH SAN BERNARDINO CA TRAINED SPOTTER
DEVORE HEIGHTS AT 2700 FEET. TOTAL IS 10.5
AS THE 8.5 IS FROM TODAY.
1220 PM SNOW 4 SSW JULIAN 33.01N 116.61W
02/25/2023 M3.5 INCH SAN DIEGO CA TRAINED SPOTTER
NEW SNOWFALL TODAY.
1205 PM SNOW 2 NW DEVORE 34.25N 117.44W
02/25/2023 E4.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
VEHICLE STUCK IN SNOW NORTH OF KENWOOD AVE
ON I-15.
1201 PM SNOW DEVORE 34.22N 117.41W
02/25/2023 E4.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
CALTRANS CHP ISSUING SIG ALERT AND SHUTTING
DOWN I-15 AND I-215 INTERCHANGE IN CAJON
PASS DUE TO DISABLED VEHICLES AND SNOW AND
ICE PREVENTING THEM FROM TOWING. SHUT DOWN
WILL ALLOW FOR PLOWING.
1145 AM SNOW DEVORE 34.22N 117.41W
02/25/2023 E3.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
JACKKNIFED BIG RIG AT 1102 AM IN SLOW LANE.
UNABLE TO MOVE VEHICLE BY TOW DUE SNOW AND
ICE ON I-15.
1135 AM SNOW 4 NNW RIVERSIDE 34.04N 117.39W
02/25/2023 E0.5 INCH SAN BERNARDINO CA TRAINED SPOTTER
SNOW DOWN HERE IN BLOOMINGTON, JUST SOUTH OF
THE 10 FREEWAY. WOW! 1100 FEET MSL.
1130 AM SNOW 4 NNE MORENO VALLEY 33.97N 117.23W
02/25/2023 M0.1 INCH RIVERSIDE CA TRAINED SPOTTER
SNOW BUT LITTLE ACCUMULATION.
1113 AM SNOW 2 NW BEAUMONT 33.95N 117.00W
02/25/2023 E0.3 INCH RIVERSIDE CA TRAINED SPOTTER
SNOWING.
1050 AM SNOW 3 SSW DEVORE 34.19N 117.43W
02/25/2023 E1.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
GLEN HELEN PARKWAY AND SYCAMORE CREEK DRIVE
WITH SEVERAL VEHICLES PARKING. SNOWING AND
STICKING AS SEEN ON CALTRANS CAMERAS. 32F AT
1900 FEET.
1030 AM HEAVY RAIN 5 N RIALTO 34.16N 117.36W
02/25/2023 M3.70 INCH SAN BERNARDINO CA TRAINED SPOTTER
TOTAL RAINFALL. SNOWING NOW.
1030 AM SNOW 1 N DEVORE 34.23N 117.40W
02/25/2023 M3.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
HEAVY WET SNOW IN DEVORE AT 2500 FEET. LARGE
BRANCHES BREAKING FROM WEIGHT.
1028 AM SNOW 4 NNE MORENO VALLEY 33.97N 117.23W
02/25/2023 E0.2 INCH RIVERSIDE CA TRAINED SPOTTER
SNOWFALL, WITH LIMITED ACCUMULATION.
1025 AM SNOW 5 N RIALTO 34.16N 117.36W
02/25/2023 M1.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
SNOWING SINCE 830 AM.
1021 AM HEAVY RAIN 1 NNW ORANGE 33.79N 117.84W
02/25/2023 M3.10 INCH ORANGE CA TRAINED SPOTTER
RAINFALL FROM 1 PM FRIDAY 2/24 TO 10AM
SATURDAY 2/25.
1016 AM SNOW 4 N FONTANA 34.16N 117.42W
02/25/2023 M1.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
LOCATED AT ABOUT 1760 FEET. SNOW IS STICKING
AND AIR TEMPERATURE IS 33 FAHRENHEIT.
1015 AM SNOW 4 NNE LYTLE CREEK 34.31N 117.47W
02/25/2023 E3.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
VEHICLES STUCK IN SNOW IN CAJON PASS ALONG
I-15 AND SR 138. CAMERAS SHOW SNOW COVERED
INTERSTATE.
0930 AM SNOW 8 SSW CORONA 33.75N 117.60W
02/25/2023 E0.1 INCH ORANGE CA TRAINED SPOTTER
CHANGED OVER TO SNOW AT 1800 FEET. SCE SITE
IS 33F IN SILVERADO CANYON.
0911 AM SNOW 4 NNE MORENO VALLEY 33.97N 117.23W
02/25/2023 E0.1 INCH RIVERSIDE CA TRAINED SPOTTER
SNOW IS FALLING BUT NOT STICKING. SPOTTER IS
1947 FEET.
0906 AM HEAVY RAIN 2 WSW SAN MARCOS 33.13N 117.21W
02/25/2023 M1.58 INCH SAN DIEGO CA TRAINED SPOTTER
1.58 INCHES PAST 24 HOURS. 0.69 IN 1 HOUR
FROM 4 TO 5 AM. MULTIPLE STATIONS HAD 0.5 TO
0.7 INCHES. DRAINAGE ISSUES. 2.25 STORM
TOTAL SINCE WEDNESDAY. 16.47 FOR WATER YEAR
SO FAR. RAINING.
0800 AM SNOW 2 E BIG BEAR LAKE 34.24N 116.89W
02/25/2023 M57.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
BEAR MOUNTAIN SNOW SUMMIT REPORTS 57 INCHES
SINCE WEDNESDAY AT 7000 FEET. 12 INCHES
OVERNIGHT.
0800 AM SNOW 4 E RUNNING SPRINGS 34.22N 117.04W
02/25/2023 M66.0 INCH SAN BERNARDINO CA BROADCAST MEDIA
SNOW VALLEY REPORTS 60 TO 66 INCHES TOTAL
SINCE WEDNESDAY. ABOUT 3 FEET OVERNIGHT.
STATE HIGHWAYS 18 AND 330 ARE CLOSED SINCE
FRIDAY EVENING. THE RESORT IS CLOSED.
0757 AM SNOW 2 W FOREST FALLS 34.09N 116.94W
02/25/2023 M0.5 INCH SAN BERNARDINO CA TRAINED SPOTTER
SNOW LEVEL. JUST CHANGED TO STEADY SNOW AT
5000 FEET. ONLY SLIGHT BREEZE FROM THE NNE
INTO THE CANYON. WE HAD QUITE A BIT OF SNOW
MELT LAST NIGHT. OUTSIDE TEMP DOWN TO 30.3F.
WAS 32F AN HOUR PRIOR.
0706 AM FLOOD 2 E VISTA 33.20N 117.21W
02/25/2023 SAN DIEGO CA DEPT OF HIGHWAYS
CALTRANS REPORT OF BOTH LANES ON FOOTHILL
DRIVE EXPERIENCING FLOODING.
0706 AM SNOW CRESTLINE 34.25N 117.29W
02/25/2023 E24.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
SR 138 AND OLD MILL ROAD. SEARCH AND RESCUE
IN EFFECT. UNABLE TO ACCESS VEHICLE.
0700 AM SNOW 4 NNE LYTLE CREEK 34.31N 117.47W
02/25/2023 E2.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
SNOW AND VISIBILITY DOWN TO 300 FEET IN
CAJON PASS AT SR 138.
0647 AM SNOW 1 W WRIGHTWOOD 34.36N 117.65W
02/25/2023 M32.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
CORRECTS PREVIOUS SNOW REPORT FROM 1 W
WRIGHTWOOD. TRAINED SPOTTER. ELEVATION 6275
FEET. STORM TOTAL SINCE WEDNESDAY.
0645 AM HEAVY RAIN 2 NNW ALISO VIEJO 33.60N 117.74W
02/25/2023 M1.60 INCH ORANGE CA TRAINED SPOTTER
SPOTTER REPORT. RAINFALL TOTAL IN LAST 24
HOURS WAS 1.6 INCHES. CUMULATIVE TOTAL SINCE
6:45 AM FEB 23 IS NOW 1.75 INCHES.
PRECIPITATION HAS BEEN MODERATE TO HEAVY AT
TIMES DURING THE OVERNIGHT HOURS.
0437 AM FLOOD 2 NE COSTA MESA 33.69N 117.89W
02/25/2023 ORANGE CA DEPT OF HIGHWAYS
THE BRISTOL ST ON RAMP IS FLOODED ON I-405
NORTH, WITH VEHICLES GETTING STUCK.
0433 AM FLOOD 2 E LAGUNA NIGUEL 33.56N 117.67W
02/25/2023 ORANGE CA DEPT OF HIGHWAYS
MUD AND WATER ON THE ON-RAMP TO I-5 N AT
CROWN VALLEY PKWY.
0417 AM FLOOD 2 E COSTA MESA 33.66N 117.88W
02/25/2023 ORANGE CA DEPT OF HIGHWAYS
SR 173 AND CAMPUS DRIVE HAS 1 TO 2 FEET OF
WATER IN 2 LANES. SNA AIRPORT HAD 0.51 IN 1
HOUR FROM 2 TO 3 AM. HIGHEST WAS ORANGE WITH
0.81 INCHES IN BAND OF HEAVY RAIN.
0402 AM NON-TSTM WND GST TEMECULA 33.50N 117.16W
02/25/2023 E50 MPH RIVERSIDE CA TRAINED SPOTTER
STRONG WINDS IN TEMECULA 40 TO 50 MPH.
0320 AM FLOOD 4 WSW MURRIETA 33.53N 117.27W
02/25/2023 RIVERSIDE CA DEPT OF HIGHWAYS
3-4 FT BOULDER CAME OFF THE MOUNTAIN INTO
THE ROAD WHEN HEAVY RAIN OCCURRED.
0310 AM NON-TSTM WND DMG 6 NNE TEMECULA 33.57N 117.11W
02/25/2023 RIVERSIDE CA TRAINED SPOTTER
STRONG WINDS BLOWING UNSECURED OBJECTS
AROUND GUSTS 50 TO 55 MPH.
0300 AM FLOOD 3 S SANTA ANA 33.70N 117.88W
02/25/2023 ORANGE CA PUBLIC
REPORT FROM MPING: STREET/ROAD FLOODING;
STREET/ROAD CLOSED; VEHICLES STRANDED NEAR
HIGHWAY 55.
0255 AM NON-TSTM WND GST MURRIETA 33.56N 117.21W
02/25/2023 M50 MPH RIVERSIDE CA TRAINED SPOTTER
STRONG WINDS GUSTING TO 45 TO 50 MPH IN
MURRIETA AND TEMECULA.
1224 AM NON-TSTM WND DMG 2 ENE COSTA MESA 33.68N 117.88W
02/25/2023 ORANGE CA DEPT OF HIGHWAYS
TREE DOWN BLOCKING SLOW LANES OF HIGHWAY 55
NORTH JUST NORTH OF THE HIGHWAY 73
TRANSITION. SOUTHEAST WINDS AT NEARBY JOHN
WAYNE AIRPORT GUSTED TO 43 MPH SHORTLY
BEFORE MIDNIGHT.
1211 AM NON-TSTM WND GST 3 S CORONA 33.82N 117.57W
02/25/2023 M58 MPH RIVERSIDE CA MESONET
CORONA RAWS REPORTED A WIND GUST OF 58 MPH
AHEAD OF COLD FRONT.
1119 PM NON-TSTM WND DMG 2 S FALLBROOK 33.33N 117.24W
02/24/2023 SAN DIEGO CA DEPT OF HIGHWAYS
LARGE EUCALYPTUS TREE DOWN ACROSS BOTH LANES
OF OLIVE HILL RD. NEARBY FALLBROOK AIRPORT
REPORTED SOUTHEAST WIND GUSTS OF 20 TO 25
MPH AT THE TIME.
1051 PM NON-TSTM WND GST 8 ENE ORANGE 33.81N 117.71W
02/24/2023 M60 MPH ORANGE CA MESONET
FREMONT CANYON SSE WIND GUST OF 60 MPH AHEAD
OF COLD FRONT.
1041 PM NON-TSTM WND GST 9 SSE CORONA 33.75N 117.50W
02/24/2023 M59 MPH RIVERSIDE CA MESONET
MESONET STATION TSCC1 TEMESCAL.
1041 PM NON-TSTM WND GST 9 SSE CORONA 33.75N 117.50W
02/24/2023 M59 MPH RIVERSIDE CA MESONET
MESONET STATION IN TEMESCAL REPORTED A SSE
WIND GUST OF 59 MPH AHEAD OF COLD FRONT.
1039 PM NON-TSTM WND DMG 9 SE CORONA 33.76N 117.47W
02/24/2023 RIVERSIDE CA DEPT OF HIGHWAYS
LARGE TREE BLOCKING RIGHT LANE OF CAMPBELL
RANCH RD AT MAYHEW CANYON RD IN TEMESCAL.
SOUTHEAST WINDS AT NEARBY SCE GLEN EDEN RD
MESONET WERE GUSTING 25 TO 30 MPH AT THE
TIME. WINDS UP THE HILL AT TEMESCAL RAWS
GUSTED UP TO 59 MPH AT 1041 PM.
0929 PM SNOW 1 ESE WRIGHTWOOD 34.35N 117.61W
02/24/2023 M18.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
ORCHARD DRIVE AND LAUSANNE DRIVE VEHICLES
STUCK IN SNOW. 1.5 FEET OF SNOW ON ROADWAY.
0845 PM FLASH FLOOD 2 ESE LYTLE CREEK 34.25N 117.46W
02/24/2023 SAN BERNARDINO CA FIRE DEPT/RESCUE
SAN BERNARDINO COUNTY FIRE REPORTS SWIFT
WATER RESCUE OF ONE OCCUPANT FROM A TRUCK.
VIDEO SHOWS RUSHING WATER ABOUT HALF WAY UP
THE TRUCK. OCCUPANT WAS RESCUED AND BROUGHT
TO SAFETY AND ASSESSED FOR INJURIES.
0830 PM FLOOD 5 NNE DEVORE 34.29N 117.37W
02/24/2023 SAN BERNARDINO CA DEPT OF HIGHWAYS
VEHICLE STUCK IN MUD ON CLEGHORN ROAD OFF OF
SR 138. SEARCH AND RESCUE IN PLACE AT
MIDNIGHT.
0756 PM NON-TSTM WND GST 10 SE CORONA 33.77N 117.45W
02/24/2023 M59 MPH RIVERSIDE CA TRAINED SPOTTER
59 MPH WIND GUST FROM THE SOUTH. TEMESCAL
VALLEY, AND CORONA RAWS 63 MPH AT 10 PM.
0608 PM SNOW 3 SSW PHELAN 34.39N 117.58W
02/24/2023 E6.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
HARD CLOSURE ON SR 138. ICY ROADWAY.
CALTRANS CAMERA SHOWS SIGNIFICANT SNOW ON
ROADWAY NEAR 4800 FEET.
0549 PM SNOW 5 SSE CRESTLINE 34.18N 117.28W
02/24/2023 M12.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
HIGHWAY 18 WATERMAN CANYON CLOSED FROM
BOTTOM TO VISTA POINT DUE TO SNOW CONDITIONS
AND MULTIPLE VEHICLES STUCK AT 4000 FEET.
0500 PM SNOW 6 SE BIG BEAR LAKE 34.17N 116.87W
02/24/2023 M25.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
CHP REPORTS VEHICLES STUCK IN SNOW. AREA HAD
RECEIVED 25 INCHES OF SNOW PAST 2 DAYS.
HIGHWAY 38.
0443 PM SNOW 2 N LAKE ARROWHEAD 34.27N 117.20W
02/24/2023 M24.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
TRUCK STUCK IN 2 FEET OF SNOW.
0400 PM HEAVY SNOW 2 SSE CRESTLINE 34.23N 117.28W
02/24/2023 M18.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
VEHICLES STUCK IN SNOW ON SR 18 AND RIM OF
THE WORLD HIGHWAY. HEAVY SNOW OCCURRING
ABOVE 4000 FEET.
0341 PM SNOW 1 W WRIGHTWOOD 34.36N 117.65W
02/24/2023 M20.0 INCH SAN BERNARDINO CA TRAINED SPOTTER
CURRENT STORM TOTAL AT WEST WRIGHTWOOD 6275
FEET. 9 INCHES SINCE 8 AM TODAY.
0300 PM HEAVY SNOW 4 W BIG BEAR LAKE 34.25N 117.00W
02/24/2023 M36.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
CHP AND CALTRANS HAVE HARD CLOSURE ON
HIGHWAY 18 ARCTIC CIRCLE AND HIGHWAY 330.
AREA WAS SWEPT AND NO VEHICLES. NUMEROUS
VEHICLES WERE DISABLED AND STUCK AT 830 AM
LEADING TO CLOSURES. THIS AREA HAS RECEIVED
20 TO 40 INCHES OF SNOW SINCE WEDNESDAY.
0220 PM SNOW 2 NE LAKE ARROWHEAD 34.27N 117.17W
02/24/2023 M24.0 INCH SAN BERNARDINO CA DEPT OF HIGHWAYS
VAN STUCK IN SNOW.
0120 PM FLOOD 5 NNW FONTANA 34.17N 117.46W
02/24/2023 SAN BERNARDINO CA DEPT OF HIGHWAYS
DUNCAN CANYON ROAD OFFRAMP HAS VEHICLES
STOPPED (OFF I-15) AND ONE IN 2 FEET OF MUD.
RAINFALL 0.25 PER HOUR AND 0.75 PAST 3 HOURS
IN LYTLE CREEK.
&&
AOTWinter Storm, San Bernardino County Mountains
- When
- February 27, 3:00 PM PST to February 28, 11:59 PM PST
- Where
- San Bernardino County Mountains forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 34.841, -116.178 (the zone’s center; the record gives no point)
Additional rounds of light to moderate snow occurred in the San Bernardino County Mountains on February 27th, with more moderate to heavy snow occurring on February 28th. Numerous locations at elevations above 4000 feet received an additional 1 to 3 feet of snow during this time. Bear Mountain and Lake Arrowhead received upwards of 31 inches during the last two days of February. Crestline Yard and Mount Baldy received between 2 and 3 feet of snow during this time as well. Lower snow levels contributed to accumulating snow at elevations between 3000 and 4000 feet as well. A trained spotter reported moderate snow accumulating up to 1 inch at the top of the Cajon Pass. Accumulating snow was also reported near Devore during this time. Accumulating snow continued over into March 1st and 2nd, the totals and reports of which are reflected in a separate episode and event.
Winter Storm, Riverside County Mountains
- When
- February 27, 3:00 PM PST to February 28, 11:59 PM PST
- Where
- Riverside County Mountains forecast zone
- Reported by
- Trained Spotter
- Coordinates
- 33.744, -115.994 (the zone’s center; the record gives no point)
Additional rounds of light to moderate snow occurred in the Riverside County Mountains on February 27th, with more moderate to heavy snow occurring on February 28th. Numerous locations at elevations above 4000 feet received an additional 1 to 2 feet of snow during this time. A trained spotter in Idyllwild reported total snowfall of 17 inches on February 28th. Snow carried over into March 1st as well, with storm total reports reflected in a separate episode.
Winter Storm, San Diego County Mountains
- When
- February 27, 3:00 PM PST to February 28, 11:59 PM PST
- Where
- San Diego County Mountains forecast zone
- Reported by
- COOP Observer
- Coordinates
- 33.028, -116.770 (the zone’s center; the record gives no point)
Additional rounds of light to moderate snow occurred in the San Diego County Mountains on February 27th, with more moderate to heavy snow occurring on February 28th. A COOP observer on Palomar Mountain observed upwards of 20 inches of snow falling on the 28th. A COOP observer near Mount Laguna reported upwards of 10 inches of snow falling on the 28th. Snow carried over into March 1st, with storm totals reflected in a different event/episode.
High Wind, San Gorgonio Pass Near Banning
- When
- February 28, 2:00 PM PST to 11:59 PM PST
- Where
- San Gorgonio Pass Near Banning forecast zone
- Measured
- 53 kt (61 mph) measured gust
- Reported by
- RAWS
- Coordinates
- 33.744, -115.994 (the zone’s center; the record gives no point)
High winds impacted the San Gorgonio Pass starting on the afternoon of February 28th and lasted overnight, with high winds continuing over into March 1st as well. A peak gust of 61 mph occurred at the Whitewater RAWS site on the 28th.
- Winter Storm
- A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.
- High Wind
- Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Tornadoes and Damaging Winds in Missouri, February 27, 2023$1.2 million · EF1 · 48 events
- Tornadoes and Hail in Ohio, February 27, 2023$931,000 · EF1 · 15 events
- Tornadoes and Damaging Winds in Indiana, February 27, 2023$360,000 · EF1 · 9 events
- High Wind in North Carolina, February 27 to 28, 2023$60,000 · 63 kt wind · 2 events
- High Wind and Strong Wind in Kentucky, February 27, 2023$22,000 · 53 kt wind · 22 events
- Tornado and Damaging Winds in Ohio, February 27, 2023$51,000 · EF0 · 4 events
- Hail and Damaging Winds in Indiana, February 27, 2023$35,000 · 1 in hail · 8 events
- Strong Wind in Illinois, February 27, 2023$19,000 · 19 events
- Winter Storm and Winter Weather in Wisconsin, February 27, 20233 injured · 7 events
- Hail and Damaging Winds in Indiana, February 27, 2023$30,000 · 1.75 in hail · 5 events
- Tornado and Winter Storm in California, February 27 to 28, 202325 events
- Flood and Heavy Snow in California, February 27 to 28, 202322 events
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1080433, 1080434, 1080436, 1080427.