Alert archive / California / Wind Advisories in 2020
Wind Advisory 13, NWS Phoenix, AZ
NWS Phoenix, AZ issued this wind advisory at Apr 12, 2020, 1:59 PM PDT for Imperial County, California. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2020, 1:59 PM PDT (20:59 UTC)
- Expired
- Apr 13, 2020, 8:00 AM PDT
- In force
- 18 hr
- Issued by
- NWS Phoenix, AZ
County Imperial County, CA
The radar
The Yuma radar (KYUX), 90 km from the middle of the area, began a volume at 21:01 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.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.0 hours before the alert went out and 173 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
- 9 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 596 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
706 WWUS75 KPSR 122059 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 159 PM MST Sun Apr 12 2020 CAZ562-131200- /O.NEW.KPSR.WI.Y.0013.200412T2059Z-200413T1500Z/ Imperial County Southwest- 159 PM PDT Sun Apr 12 2020 ...WIND ADVISORY IN EFFECT UNTIL 8 AM PDT MONDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 8 AM PDT Monday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
2 follow-up statements
028 WWUS75 KPSR 130449 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 949 PM MST Sun Apr 12 2020 CAZ562-131500- /O.CON.KPSR.WI.Y.0013.000000T0000Z-200413T1500Z/ Imperial County Southwest- 949 PM PDT Sun Apr 12 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT MONDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 8 AM PDT Monday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
548 WWUS75 KPSR 130831 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 131 AM MST Mon Apr 13 2020 CAZ562-131500- /O.CON.KPSR.WI.Y.0013.000000T0000Z-200413T1500Z/ Imperial County Southwest- 131 AM PDT Mon Apr 13 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 8 AM PDT this morning. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
Nearby
Wind Advisories in California, 2020Every wind advisory in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.