Alert archive / California / Wind Advisories in 2021
Wind Advisory 15, NWS Phoenix, AZ
NWS Phoenix, AZ issued this wind advisory at Apr 4, 2021, 1:27 PM PDT for Imperial County, California. It took effect at Apr 4, 2021, 6:00 PM PDT. It was in force for 35 hr.
The area
The counties it named.
The facts
- Issued
- Apr 4, 2021, 1:27 PM PDT (20:27 UTC)
- In effect from
- Apr 4, 2021, 6:00 PM PDT
- Expired
- Apr 6, 2021, 5:00 AM PDT
- In force
- 35 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 20:27 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, 8.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2720 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
265 WWUS75 KPSR 042027 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 127 PM MST Sun Apr 4 2021 CAZ562-050830- /O.NEW.KPSR.WI.Y.0015.210405T0100Z-210406T1200Z/ Imperial County Southwest- 127 PM PDT Sun Apr 4 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 6 PM this evening to 5 AM PDT Tuesday. * 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. && $$
3 follow-up statements
989 WWUS75 KPSR 050247 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 747 PM MST Sun Apr 4 2021 CAZ562-052330- /O.CON.KPSR.WI.Y.0015.000000T0000Z-210406T1200Z/ Imperial County Southwest- 747 PM PDT Sun Apr 4 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
272 WWUS75 KPSR 050726 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1226 AM MST Mon Apr 5 2021 CAZ562-052200- /O.CON.KPSR.WI.Y.0015.000000T0000Z-210406T1200Z/ Imperial County Southwest- 1226 AM PDT Mon Apr 5 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Tuesday. * 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. && $$
987 WWUS75 KPSR 051916 NPWPSR URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ 1216 PM MST Mon Apr 5 2021 CAZ562-061200- /O.CON.KPSR.WI.Y.0015.000000T0000Z-210406T1200Z/ Imperial County Southwest- 1216 PM PDT Mon Apr 5 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph. * WHERE...Southwest corner of Imperial County. * WHEN...Until 5 AM PDT Tuesday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. Minor tree damage possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles. In addition, strong winds over desert areas could result in briefly lowered visibilities to well under a mile at times in blowing dust or blowing sand. Use extra caution. && $$
Nearby
Wind Advisories in California, 2021Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.