Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 1, NWS San Diego, CA
NWS San Diego, CA issued this winter storm warning at Jan 24, 2021, 10:12 AM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Jan 24, 2021, 10:00 PM PST. It was in force for 32 hr. 8 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 24, 2021, 10:12 AM PST (18:12 UTC)
- In effect from
- Jan 24, 2021, 10:00 PM PST
- Expired
- Jan 26, 2021, 6:00 AM PST
- In force
- 32 hr
- Issued by
- NWS San Diego, CA
Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 18:10 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 25, 8:00 AM PST | HEAVY SNOW 4 | 5 Sse Crestline, CA | CHAIN CONTROL AT ENTRANCE OF HIGHWAY 330. ELEVATION NEAR 2000 FEET. |
| Jan 25, 8:00 AM PST | HEAVY SNOW 28 | 5 Nne Crestline, CA | STORM TOTAL FROM FRIDAY TO MONDAY. |
| Jan 25, 8:46 AM PST | HEAVY SNOW 9 | 1 Nnw Mt Baldy, CA | STORM TOTAL FRIDAY TO MONDAY AT 4100 FEET. |
| Jan 25, 9:00 AM PST | HEAVY SNOW 4.5 | 3 Se Mountain Center, CA | 4.5 INCHES SNOW AT 4400 FEET AT LAKE HEMET. |
| Jan 25, 9:30 AM PST | SNOW 4 | 1 E Mountain Pass, CA | INTERSTATE 15 WAS CLOSED FROM BAKER TO PRIMM FROM 0930 TO 1300 PST DUE TO SNOW IN MOUNTAIN PASS. |
| Jan 25, 3:00 PM PST | HEAVY SNOW 17 | 1 E Idyllwild, CA | FERN VALLEY, TOTAL SINCE FRIDAY. GRAUPEL SNOW PELLET. LIGHTNING DETECTED ON HIGHWAY 243. |
| Jan 25, 4:00 PM PST | HEAVY SNOW 4 | 12 Ene Campo, CA | 4 INCHES REPORTED AT 3500 FEET AT BOULEVARD. |
| Jan 25, 5:00 PM PST | HEAVY SNOW 18 | 1 N Wrightwood, CA | SNOWFALL ON MONDAY AT 5900 FEET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The text
As transmitted.
318 WWUS46 KSGX 241812 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 1012 AM PST Sun Jan 24 2021 ...WINTER STORM WARNING FOR THE MOUNTAINS OF RIVERSIDE...SAN BERNARDINO...AND SAN DIEGO COUNTIES FROM LATE THIS EVENING THROUGH MONDAY EVENING... ...WINTER WEATHER ADVISORY FOR THE SANTA ANA MOUNTAINS TONIGHT THROUGH MONDAY MORNING... .An unusually cold Winter Storm will bring low elevation snowfall and the potential for severe travel disruptions starting tonight and continuing through Monday in the mountains. The Cajon Pass and the I-8 corridor will likely be impacted. The Ortega Highway may be impacted as well due to the low snow levels expected. CAZ055-056-058-250215- /O.UPG.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/ /O.NEW.KSGX.WS.W.0001.210125T0600Z-210126T0600Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Julian, and Pine Valley 1012 AM PST Sun Jan 24 2021 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM PST MONDAY... * WHAT...Heavy snow is expected. In the San Bernardino and Riverside County Mountains, total accumulations up to 6 inches between 3,000 and 4,000 feet, and 5 to 10 inches above 4,000 feet, with local amounts to 12 inches above 5,000 feet. In the San Diego County Mountains, 2 to 6 inches between 3,000 and 4,000 feet, and 8 to 12 inches between 4,000 and 5,000 feet. Local amounts to 18 inches possible, especially at the higher elevations. Plan on difficult travel conditions. * WHERE...Mountains above 3000 feet. Heaviest snowfall above 4000 feet. * WHEN...10 PM today to 10 PM Monday. * IMPACTS...Severe travel disruptions with treacherous driving conditions. Accumulating snow and ice likely to impact major freeways, including I-15 through Cajon Pass, and especially I-8 between Viejas and Boulevard. Low-elevation snow may result in more widespread travel impacts compared to typical winter storms. * ADDITIONAL DETAILS...Southwest winds increasing overnight 20 to 30 MPH with gusts to 50 MPH...Becoming west on Monday. Be prepared for significant reductions in visibility at times due to dense fog and blowing snow. Some accumulating snow is possible to 2500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ057-250215- /O.NEW.KSGX.WW.Y.0003.210125T0600Z-210125T1800Z/ Santa Ana Mountains and Foothills- 1012 AM PST Sun Jan 24 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST MONDAY... * WHAT...Snow expected. Plan on slippery road conditions. Total snow accumulations of 2 to 4 inches, with localized amounts of 6 to 8 inches, on the highest peaks. * WHERE...Santa Ana mountains above 2500 feet. * WHEN...10 PM this evening to 10 AM Monday. * Impacts...Travel may be impacted on the Ortega Highway where below freezing temperatures could result in accumulations of ice and snow. * ADDITIONAL DETAILS...Southwest winds increasing overnight 20 to 30 MPH with gusts to 40 MPH...becoming west on Monday. Be prepared for significant reductions in visibility at times due to fog and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ 10
7 follow-up statements
540 WWUS46 KSGX 250543 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 943 PM PST Sun Jan 24 2021 ...WINTER STORM WARNING FOR THE MOUNTAINS OF RIVERSIDE...SAN BERNARDINO...AND SAN DIEGO COUNTIES FROM LATE THIS EVENING THROUGH MONDAY EVENING... ...WINTER WEATHER ADVISORY FOR THE SANTA ANA MOUNTAINS TONIGHT THROUGH MONDAY MORNING... .An unusually cold winter storm will bring low elevation snowfall and the potential for severe travel disruptions starting tonight and continuing through Monday in the mountains. The Cajon Pass and the I-8 corridor will likely be impacted. The Ortega Highway may be impacted as well due to the low snow levels expected. CAZ055-056-058-251400- /O.CON.KSGX.WS.W.0001.210125T0600Z-210126T0600Z/ San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Julian, and Pine Valley 943 PM PST Sun Jan 24 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST MONDAY... * WHAT...Heavy snow expected. In the San Bernardino and Riverside County Mountains, total accumulations of 2 to 4 inches between 3,000 and 4,000 feet, and 4 to 8 inches above 4,000 feet, and 8 to 12 inches above 5,000 feet. In the San Diego County Mountains, 2 to 6 inches between 3,000 and 4,000 feet, and 8 to 12 inches between 4,000 and 5,000 feet. Local amounts to 18 inches possible, especially at the higher elevations of the San Bernardino and Riverside Mountains, as well as near Cuyamaca Peak and Mount Laguna in San Diego County. Plan on difficult travel conditions, including along I-15 and I-8. * WHERE...Mountains above 3000 feet. Heaviest snowfall above 4000 feet. * WHEN...Through 10 PM Monday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times in snow, blowing snow, and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ057-251400- /O.CON.KSGX.WW.Y.0003.210125T0600Z-210125T1800Z/ Santa Ana Mountains and Foothills- 943 PM PST Sun Jan 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Snow expected. Plan on slippery road conditions. Total snow accumulations of up to one inch, with localized amounts up to 6 inches, are expected. * WHERE...Santa Ana mountains above 2500 feet. * WHEN...Through 10 AM Monday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ SS
011 WWUS46 KSGX 251059 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 259 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING FOR THE MOUNTAINS OF RIVERSIDE...SAN BERNARDINO...AND SAN DIEGO COUNTIES FROM LATE THIS EVENING THROUGH MONDAY EVENING... ...WINTER WEATHER ADVISORY FOR THE SANTA ANA MOUNTAINS TONIGHT THROUGH MONDAY MORNING... .An unusually cold winter storm will bring low elevation snowfall and the potential for severe travel disruptions starting tonight and continuing through Monday in the mountains. The Cajon Pass and the I-8 corridor will likely be impacted. The Ortega Highway may be impacted as well due to the low snow levels expected. CAZ055-252330- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 259 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Damage to trees and power lines is possible. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-252330- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 259 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-252330- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 259 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Travel will be very difficult to impossible, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 4 to 8 inches above 4000 feet with 8 to 14 inches above 5000 feet with isolated amounts up to 20 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ057-251800- /O.CON.KSGX.WW.Y.0003.000000T0000Z-210125T1800Z/ Santa Ana Mountains and Foothills- 259 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Snow occurring. Plan on slippery road conditions, including during the morning commute. Additional snow accumulations of up to two inches, with localized amounts up to 5 inches, are expected. * WHERE...Santa Ana mountains above 2500 feet. * WHEN...Until 10 AM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ 17
904 WWUS46 KSGX 251329 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 529 AM PST Mon Jan 25 2021 CAZ055-252300- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 529 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Damage to trees and power lines is possible. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Snow is expected to impact travel at times along Interstate 15 through the Cajon Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-252300- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 529 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-252300- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 529 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Travel will be very difficult to impossible, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 5 to 9 inches, with localized amounts up to 20 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. There will be difficult driving conditions at times along Interstate 8 and along the Sunrise Highway. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ060-251800- /O.EXA.KSGX.WW.Y.0003.000000T0000Z-210125T1800Z/ Apple and Lucerne Valleys- Including the cities of Victorville, Hesperia, and Apple Valley 529 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Snow occurring. Plan on difficult travel conditions, including during the morning commute. Tree branches could fall as well. Additional snow accumulations of up to two inches are expected. * WHERE...The most likely location for accumulating snow is near the foothills of the mountains where a few inches of snow is possible. * WHEN...Until 10 AM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ057-251800- /O.CON.KSGX.WW.Y.0003.000000T0000Z-210125T1800Z/ Santa Ana Mountains and Foothills- 529 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Snow occurring. Plan on slippery road conditions, including during the morning commute. Additional snow accumulations of up to one inch, with localized amounts up to 3 inches, are expected. * WHERE...Santa Ana mountains above 2500 feet. * WHEN...Until 10 AM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ 17
920 WWUS46 KSGX 251756 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 956 AM PST Mon Jan 25 2021 CAZ057-251900- /O.EXP.KSGX.WW.Y.0003.000000T0000Z-210125T1800Z/ Santa Ana Mountains and Foothills- 956 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... Precipitation will continue to diminish, allowing the hazard to expire. $$ CAZ060-251900- /O.EXP.KSGX.WW.Y.0003.000000T0000Z-210125T1800Z/ Apple and Lucerne Valleys- Including the cities of Victorville, Hesperia, and Apple Valley 956 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... Precipitation will continue to diminish, allowing the hazard to expire. $$ CAZ055-260200- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 956 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Damage to trees and power lines is possible. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Snow is expected to impact travel at times along Interstate 15 through the Cajon Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-260200- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 956 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 3 to 6 inches above 4000 feet with 6 to 12 inches above 5000 feet with isolated amounts up to 18 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-260200- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 956 AM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Heavy snow occurring. Travel will be very difficult to impossible, including during the morning commute. Expect damage to trees and power lines as well. Additional snow accumulations of 5 to 9 inches, with localized amounts up to 20 inches, are expected. * WHERE...Heaviest snowfall above 4500 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...There will be areas of southwest to west winds 25 to 35 mph with gusts to 65 mph. Be prepared for significant reductions in visibility at times from heavy snow, blowing snow, and fog. There will be difficult driving conditions at times along Interstate 8 and along the Sunrise Highway. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ048-050-260200- /O.EXB.KSGX.WW.Y.0003.210125T1800Z-210126T1400Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Diego County Valleys- Including the city of Moreno Valley 956 AM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM PST TUESDAY FOR AREAS ABOVE 1500 FEET IN THE INLAND EMPIRE AND ABOVE 2000 FEET IN SAN DIEGO COUNTY... * WHAT...Snow showers may occur at lower elevations, leading to difficult travel conditions. Tree branches could fall as well. Additional snow accumulations of up to an inch are expected, highest in San Diego County. * WHERE...Above 1500 feet in the Inland Empire and above 2000 feet in the San Diego County valleys. * WHEN...Until 6 AM Tuesday. * ADDITIONAL DETAILS...Snow will slowly subside from north to south through this afternoon into tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling, especially in open areas. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ APR
464 WWUS46 KSGX 252107 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 107 PM PST Mon Jan 25 2021 CAZ055-260515- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 107 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Difficult travel conditions with possible damage to trees and power lines due to heavy snow. Additional snow accumulations of up to 2 inches above 4000 feet with 2 to 6 inches (locally higher) above 5000 feet are expected. * WHERE...Heaviest above 4000 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times in snow, fog, and gusty winds. Snow is expected to impact travel at times along many roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-260515- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 107 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Difficult travel conditions with possible damage to trees and power lines due to heavy snow. Additional snow accumulations of up to 3 inches above 4000 feet with 3 to 6 inches (locally higher) above 5000 feet are expected. * WHERE...Heaviest above 4000 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times in snow and fog. Winds may gust over 60 mph at times. Snow is expected to impact travel at times along many roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-260515- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 107 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Difficult travel conditions with possible damage to trees and power lines due to heavy snow. Additional snow accumulations of up to 5 inches below 4500 feet, with localized amounts near one foot above 4500 feet. * WHERE...Heaviest snowfall above 4000 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times in snow and fog. Winds may gust over 60 mph at times. There will be difficult driving conditions at times along Interstate 8, Route 79, and along the Sunrise Highway. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ048-050-260515- /O.CON.KSGX.WW.Y.0003.000000T0000Z-210126T1400Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Diego County Valleys- Including the city of Moreno Valley 107 PM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY... * WHAT...Snow showers may occur at lower elevations, leading to difficult travel conditions. Tree branches could fall as well. Additional snow accumulations of up to an inch are expected, highest in San Diego County. * WHERE...Above 1500 feet in the Inland Empire and above 2000 feet in the San Diego County valleys. * WHEN...Until 6 AM Tuesday. * ADDITIONAL DETAILS...Snow will slowly subside from north to south through this afternoon into tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling, especially in open areas. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ APR
605 WWUS46 KSGX 260208 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 608 PM PST Mon Jan 25 2021 CAZ058-261015- /O.EXT.KSGX.WS.W.0001.000000T0000Z-210126T1400Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 608 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM TUESDAY... * WHAT...Windy with snow. Roads will be icy. Additional snow accumulations from 1 to 6 inches through Tuesday morning. * WHERE...Heaviest snowfall above 4000 feet. * WHEN...Until 6 AM Tuesday. * ADDITIONAL DETAILS...Difficult driving conditions in snow, fog and strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ055-260600- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ San Bernardino County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 608 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM THIS EVENING... * WHAT...Snow showers and strong winds this evening. * WHERE...Heaviest above 4000 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Snow showers tapering off overnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning means significant amounts of ice are occurring This will make travel very hazardous or impossible. Strong winds are also possible. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-260600- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T0600Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 608 PM PST Mon Jan 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM THIS EVENING... * WHAT...Snow showers and strong winds this evening. Driving will be difficult on snow covered roads. Additional snow accumulations of 1 to 3 inches through 10 pm. * WHERE...Heaviest above 4000 feet. * WHEN...Until 10 PM today. * ADDITIONAL DETAILS...Significant reductions in visibility in snow and fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ048-050-261015- /O.CON.KSGX.WW.Y.0003.000000T0000Z-210126T1400Z/ San Bernardino and Riverside County Valleys-The Inland Empire- San Diego County Valleys- Including the city of Moreno Valley 608 PM PST Mon Jan 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM TUESDAY FOR FREEZING TEMPERATURES IN THE VALLEYS AND SNOW SHOWERS IN THE FOOTHILLS... * WHAT...Very cold tonight with lows from 30 to 35, cold enough to damage sensitive plants and harm pets if left unprotected. Snow showers in the foothills where 1 to 2 inches is possible overnight. * WHERE...Valleys and foothills. * WHEN...Until 6 AM Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling, especially in open areas. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ Moede
400 WWUS46 KSGX 261052 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 252 AM PST Tue Jan 26 2021 CAZ048-261200- /O.CAN.KSGX.WW.Y.0003.000000T0000Z-210126T1400Z/ San Bernardino and Riverside County Valleys-The Inland Empire- 252 AM PST Tue Jan 26 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow showers near the foothills have ended. $$ CAZ058-261400- /O.CON.KSGX.WS.W.0001.000000T0000Z-210126T1400Z/ San Diego County Mountains- Including the cities of Julian and Pine Valley 252 AM PST Tue Jan 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS MORNING... * WHAT...Heavy snow occurring. Plan on difficult travel conditions. Tree branches could fall as well. Additional snow accumulations of up to 3 inches are expected. * WHERE...Mountains from Julian southward. * WHEN...Until 6 AM today. * ADDITIONAL DETAILS...Scattered snow showers will continue through sunrise, mainly from Julian southward. The showers will end from the north during the morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ050-261400- /O.CON.KSGX.WW.Y.0003.000000T0000Z-210126T1400Z/ San Diego County Valleys- 252 AM PST Tue Jan 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS MORNING ABOVE 2500 FEET... * WHAT...Snow occurring. Plan on difficult travel conditions. Additional snow accumulations of up to one inch are expected. * WHERE...Inland valleys above 2500 feet from the Ramona area southward. * WHEN...Until 6 AM today. * ADDITIONAL DETAILS...Scattered snow showers will continue through around sunrise, then end from the north during the morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ 17
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 1:45 AM PST | High Surf Advisory | SGX | Orange, San Diego | 64 hr |
| Jan 24, 10:12 AM PST | Winter Weather Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 44 hr |
| Jan 24, 12:38 PM PST | High Wind Warning | SGX | San Diego | 38 hr |
| Jan 24, 12:38 PM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 33 hr |
Nearby
Winter Storm Warnings in California, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; radar from the NEXRAD Level II archive.