Alert archive / California / High Wind Watches in 2008
High Wind Watch 21, NWS Las Vegas, NV
NWS Las Vegas, NV issued this high wind watch at Dec 18, 2008, 3:15 PM PST for Inyo County, California. It took effect at Dec 19, 2008, 2:00 AM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 18, 2008, 3:15 PM PST (23:15 UTC)
- In effect from
- Dec 19, 2008, 2:00 AM PST
- Expired
- Dec 18, 2008, 9:17 PM PST
- In force
- Issued by
- NWS Las Vegas, NV
County Inyo County, CA
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 11.3 hours before the alert went out and 127 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
- 689 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS75 KVEF 182315 NPWVEF URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 315 PM PST THU DEC 18 2008 CAZ519-190715- /O.NEW.KVEF.HW.A.0021.081219T1000Z-081220T0000Z/ EASTERN SIERRA SLOPES- INCLUDING THE CITIES OF...ASPENDELL...MT WHITNEY 315 PM PST THU DEC 18 2008 ...HIGH WIND WATCH IN EFFECT FROM 2 AM PST FRIDAY THROUGH FRIDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A HIGH WIND WATCH FOR THE EASTERN SIERRA SLOPES...WHICH IS IN EFFECT FROM 2 AM PST FRIDAY THROUGH FRIDAY AFTERNOON. A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE NORTHERN GREAT BASIN TONIGHT AND FRIDAY. CONDITIONS LOOK FAVORABLE FOR A STRONG DOWNSLOPE WIND EVENT AFTER MIDNIGHT ALONG THE UPPER EASTERN SLOPES OF THE SIERRA WITH SUSTAINED WINDS AROUND 50 MPH AND GUSTS IN EXCESS OF 70 MPH POSSIBLE. THE STRONGEST WINDS ARE EXPECTED OVER THE CREST AND AT CANYON OPENINGS ALONG THE EAST SLOPES. A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 50 MPH AND...OR GUSTS OF 70 MPH OR STRONGER MAY OCCUR IN THE WATCH AREA. CONTINUE TO MONITOR FORECASTS FOR THE LATEST INFORMATION. $$
1 follow-up statement
000 WWUS75 KVEF 190517 NPWVEF URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 917 PM PST THU DEC 18 2008 CAZ519-191500- /O.UPG.KVEF.HW.A.0021.081219T1000Z-081220T0000Z/ /O.NEW.KVEF.WI.Y.0050.081219T1000Z-081220T0000Z/ EASTERN SIERRA SLOPES- INCLUDING THE CITIES OF...ASPENDELL...MT WHITNEY 917 PM PST THU DEC 18 2008 ...WIND ADVISORY IN EFFECT FROM 2 AM TO 4 PM PST FRIDAY... THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A WIND ADVISORY FOR THE EAST SLOPES OF THE SIERRA ABOVE 5000 FEET...WHICH IS IN EFFECT FROM 2 AM TO 4 PM PST FRIDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE NORTHERN GREAT BASIN TONIGHT AND FRIDAY. A JET STREAM MOVING ACROSS THE SIERRA WILL LEAD TO VERY STRONG RIDGETOP WINDS AND THESE STRONG WINDS WILL DESCEND DOWN THE UPPER EAST SLOPES OF THE SIERRA AT TIMES LATE TONIGHT THROUGH FRIDAY. SUSTAINED WINDS WILL GENERALLY RANGE FROM 35 TO 45 MPH WITHE GUSTS AROUND 65 MPH. A WIND ADVISORY MEANS THAT WIND ADVISORY MEANS THAT WINDS OF 40 TO 49 MPH AND...OR WIND GUSTS OF 58 TO 69 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. $$
Nearby
High Wind Watches in California, 2008Every high wind watch in 2008
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.