Alert archive / California / Winter Storm Warnings in 2021
Winter Storm Warning 2, NWS San Diego, CA
NWS San Diego, CA issued this winter storm warning at Jan 27, 2021, 12:58 PM PST for Riverside County, San Bernardino County, California. It took effect at Jan 28, 2021, 3:00 PM PST. It was in force for 24 hr. 6 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 27, 2021, 12:58 PM PST (20:58 UTC)
- In effect from
- Jan 28, 2021, 3:00 PM PST
- Expired
- Jan 29, 2021, 3:00 PM PST
- In force
- 24 hr
- Issued by
- NWS San Diego, CA
The radar
The Santa Ana Mts radar (KSOX), 152 km from the middle of the area, began a volume at 21:03 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 29, 12:10 AM PST | HEAVY SNOW 6 | 1 Nnw Wrightwood, CA | WHITE OUT CONDITIONS AT WRIGHTWOOD WITH 6 INCHES OF SNOW THROUGH MIDNIGHT. |
| Jan 29, 2:29 AM PST | HEAVY SNOW 11 | Wrightwood, CA | WRIGHTWOOD SPOTTER REPORTED 11 INCHES OF SNOW THROUGH 2 AM. STILL SNOWING. |
| Jan 29, 6:33 AM PST | HEAVY SNOW 10 | 2 Sw Big Bear City, CA | |
| Jan 29, 6:38 AM PST | SNOW 0.5 | 4 Sw Hesperia, CA | QUICK BURST OF SNOWFALL FELL BETWEEN 3 AND 4AM TOTALING 0.5 INCH. PRECIPITATION HAS CHANGED TO ALL RAIN SINCE THEN. ELEVATION 3580 FT. |
| Jan 29, 8:48 AM PST | HEAVY SNOW 4 | 1 W Phelan, CA | ELEVATION 4100 TO 4300 FEET. |
| Jan 29, 9:00 AM PST | HEAVY SNOW 15 | 1 W Wrightwood, CA | SPOTTER REPORT 1.07 WATER EQUIVALENT AT ELEVATION 6100 FEET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.0 hours before the alert went out and 195 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
179 WWUS46 KSGX 272058 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 1258 PM PST Wed Jan 27 2021 CAZ055-280615- /O.UPG.KSGX.WS.A.0002.210128T2300Z-210129T2300Z/ /O.NEW.KSGX.WS.W.0002.210128T2300Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 1258 PM PST Wed Jan 27 2021 ...WINTER STORM WARNING IN EFFECT FROM 3 PM THURSDAY TO 3 PM PST FRIDAY FOR ELEVATIONS ABOVE 5000 FEET... * WHAT...Heavy snow expected. Travel will be very difficult to impossible, including during the morning commute Friday. Damage to trees and power lines is possible. Total snow accumulations of 6 to 10 inches above 5000 feet, 10 to 15 above 6000 feet, with localized amounts up to 30 inches above 7000 feet. * WHERE...All areas above 5000 feet in the San Bernardino County mountains. * WHEN...3 PM Thursday to 3 PM Friday. * 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 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. $$ CAZ056-280615- /O.UPG.KSGX.WS.A.0002.210129T0200Z-210129T2300Z/ /O.NEW.KSGX.WS.W.0002.210129T0200Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 1258 PM PST Wed Jan 27 2021 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THURSDAY TO 3 PM PST FRIDAY FOR ELEVATIONS ABOVE 5000 FEET... * WHAT...Heavy snow expected. Plan on difficult travel conditions. Tree branches could fall as well. Total snow accumulations of 4 to 8 inches above 5000 feet, with 16 to 18 inches on Mount San Jacinto. * WHERE...All areas above 5000 feet in the Riverside County mountains. * WHEN...6 PM Thursday to 3 PM Friday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CO
7 follow-up statements
654 WWUS46 KSGX 280501 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 901 PM PST Wed Jan 27 2021 CAZ055-281400- /O.CON.KSGX.WS.W.0002.210128T2300Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 901 PM PST Wed Jan 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THURSDAY TO 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Travel will be very difficult to impossible. Damage to trees and power lines is possible. Total snow accumulations of 6 to 10 inches above 5000 feet, 10 to 15 above 6000 feet, with localized amounts up to 30 inches above 7000 feet. * WHERE...All areas above 5000 feet in the San Bernardino County mountains. * WHEN...3 PM Thursday to 3 PM Friday. * 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 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. $$ CAZ056-281400- /O.CON.KSGX.WS.W.0002.210129T0200Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 901 PM PST Wed Jan 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THURSDAY TO 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Plan on difficult travel conditions. Tree branches could fall as well. Total snow accumulations of 4 to 8 inches above 5000 feet, with 16 to 18 inches on Mount San Jacinto. * WHERE...All areas above 5000 feet in the Riverside County mountains. * WHEN...6 PM Thursday to 3 PM Friday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ APR
043 WWUS46 KSGX 281107 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 307 AM PST Thu Jan 28 2021 CAZ055-282345- /O.CON.KSGX.WS.W.0002.210128T2300Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 307 AM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Travel will be very difficult to impossible. Tree branches could fall as well. Total snow accumulations of 6 to 10 inches above 5000 feet, 10 to 16 above 6000 feet, with localized amounts up to 30 inches above 7000 feet. * WHERE...Mountain areas above 5000 feet. * WHEN...3 PM today to 3 PM Friday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Snow levels will rise to 5500 to 6000 feet this evening, then fall to around 4500 feet on Friday. 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. $$ CAZ056-282345- /O.CON.KSGX.WS.W.0002.210129T0200Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 307 AM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Plan on difficult travel conditions. Total snow accumulations of 4 to 8 inches above 5000 feet, with 12 to 18 inches on Mount San Jacinto. * WHERE...Mountain areas above 5000 feet. * WHEN...6 PM today to 3 PM Friday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. Snow levels will rise to 5500 to 6000 feet this evening, then fall to around 4500 feet on Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-282345- /O.NEW.KSGX.WW.Y.0004.210129T1600Z-210130T0200Z/ San Diego County Mountains- 307 AM PST Thu Jan 28 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 6 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Snow expected. Plan on difficult travel conditions, including during the evening commute on Friday. Total snow accumulations of 3 to 6 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...8 AM to 6 PM Friday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. Snow levels will rise to 5500 to 6000 feet tonight, then fall to around 4500 feet on Friday. 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. $$ 17
078 WWUS46 KSGX 282041 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 1241 PM PST Thu Jan 28 2021 CAZ055-290630- /O.CON.KSGX.WS.W.0002.210128T2300Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 1241 PM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Travel will be very difficult to impossible. Damage to trees and power lines is possible. Total snow accumulations of 6 to 10 inches above 5000 feet, 10 to 16 above 6000 feet, with localized amounts of 24 to 30 inches above 7000 feet. * WHERE...Mountain areas above 5000 feet. * WHEN...3 PM today to 3 PM Friday. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are expected. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-290630- /O.CON.KSGX.WS.W.0002.210129T0200Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 1241 PM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow expected. Travel will be very difficult to impossible, including during the evening commute on Friday. Tree branches could fall as well. Total snow accumulations of 4 to 10 inches above 5000 feet, with 12 to 18 inches on Mount San Jacinto. * WHERE...Mountain areas above 5000 feet. * WHEN...6 PM today to 3 PM Friday. * 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 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. $$ CAZ058-290630- /O.CON.KSGX.WW.Y.0004.210129T1600Z-210130T0200Z/ San Diego County Mountains- 1241 PM PST Thu Jan 28 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Snow expected. Travel will be very difficult to impossible, including during the evening commute on Friday. Total snow accumulations of 5 to 10 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...8 AM to 6 PM Friday. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CO
549 WWUS46 KSGX 290514 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 914 PM PST Thu Jan 28 2021 CAZ055-291400- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 914 PM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Additional snow accumulations of 8 to 14 inches, with localized amounts up to 20 inches, are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 PM Friday. * IMPACTS...Be prepared for significant reductions in visibility at times. Travel will be very difficult to impossible, especially during the morning commute Friday. Tree branches could fall as well. * ADDITIONAL DETAILS...Snow levels will start high tonight close to 5500 feet and fall to near 4000 feet later tonight into Friday 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. $$ CAZ056-291400- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 914 PM PST Thu Jan 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Additional snow accumulations of 6 to 12 inches, with localized amounts up to 20 inches, are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 PM Friday. * IMPACTS...Be prepared for significant reductions in visibility at times. Travel will be very difficult to impossible, especially during the morning commute Friday. Tree branches could fall as well. * ADDITIONAL DETAILS...Snow levels will start high tonight close to 5500 feet and fall to near 4000 feet later tonight into Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-291400- /O.CON.KSGX.WW.Y.0004.210129T1600Z-210130T0200Z/ San Diego County Mountains- 914 PM PST Thu Jan 28 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM PST FRIDAY ABOVE 5000 FEET... * WHAT...Snow expected. Total snow accumulations of 4 to 8 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...8 AM to 6 PM Friday. * IMPACTS...Be prepared for significant reductions in visibility at times. Travel will be very difficult to impossible. Tree branches could fall as well. * ADDITIONAL DETAILS...Snow levels will start high through the night close to 5500 feet and fall to near 4500 feet later tonight into Friday 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. $$ APR
365 WWUS46 KSGX 291142 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 342 AM PST Fri Jan 29 2021 CAZ055-292300- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 342 AM PST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM THIS AFTERNOON ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Travel will be very difficult to impossible. Additional snow accumulations of 4 to 10 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ056-292300- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 342 AM PST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM THIS AFTERNOON ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Travel will be very difficult to impossible, including during the evening commute. Additional snow accumulations of 4 to 8 inches. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...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. $$ CAZ058-292300- /O.CON.KSGX.WW.Y.0004.210129T1600Z-210130T0200Z/ San Diego County Mountains- 342 AM PST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM THIS EVENING ABOVE 5000 FEET... * WHAT...Snow expected. Travel will be very difficult. Total snow accumulations of 4 to 8 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...8 AM to 6 PM today. * ADDITIONAL DETAILS...Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ Moede
308 WWUS46 KSGX 292036 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 1236 PM PST Fri Jan 29 2021 CAZ055-292300- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ San Bernardino County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, and Wrightwood 1236 PM PST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 2 to 4 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 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. $$ CAZ056-292300- /O.CON.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ Riverside County Mountains- Including the city of Idyllwild-Pine Cove 1236 PM PST Fri Jan 29 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON ABOVE 5000 FEET... * WHAT...Heavy snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 2 to 4 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 3 PM today. * ADDITIONAL DETAILS...Be prepared for significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions are occurring. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. For road condition information in California...enter 8 0 0 4 2 7 7 6 2 3 if inside california or 9 1 6 4 5 5 7 6 2 3 if outside California. $$ CAZ058-300200- /O.CON.KSGX.WW.Y.0004.000000T0000Z-210130T0200Z/ San Diego County Mountains- 1236 PM PST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING ABOVE 5000 FEET... * WHAT...Snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 3 to 5 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 6 PM 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. $$ CO
291 WWUS46 KSGX 292312 WSWSGX URGENT - WINTER WEATHER MESSAGE National Weather Service SAN DIEGO CA 312 PM PST Fri Jan 29 2021 CAZ055-056-300015- /O.EXP.KSGX.WS.W.0002.000000T0000Z-210129T2300Z/ San Bernardino County Mountains-Riverside County Mountains- Including the cities of Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, and Idyllwild-Pine Cove 312 PM PST Fri Jan 29 2021 ...WINTER STORM WARNING HAS EXPIRED... Showers will continue to diminish this afternoon and little if any additional snowfall or damaging winds are expected. $$ CAZ058-300200- /O.CON.KSGX.WW.Y.0004.000000T0000Z-210130T0200Z/ San Diego County Mountains- 312 PM PST Fri Jan 29 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING ABOVE 5000 FEET... * WHAT...Snow occurring. Plan on difficult travel conditions, including during the evening commute. Additional snow accumulations of 3 to 5 inches are expected. * WHERE...Mountain areas above 5000 feet. * WHEN...Until 6 PM 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. $$
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 27, 10:58 AM PST | Flash Flood Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.