Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 33, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 3, 2012, 9:09 PM MST for Mohave County, Arizona. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 3, 2012, 9:09 PM MST (04:09 UTC)
- Expired
- Aug 3, 2012, 10:00 PM MST
- In force
- 51 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 104 km from the middle of the area, began a volume at 04:12 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
Las Vegas, NV (KVEF), launched 00:00Z, 4.2 hours before the alert went out and 168 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
- 35 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 3971 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
252 WUUS55 KVEF 040409 SVRVEF AZC015-040500- /O.NEW.KVEF.SV.W.0033.120804T0409Z-120804T0500Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 909 PM MST FRI AUG 3 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 1000 PM MST. * AT 903 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES SOUTH OF GRAND CANYON SKYWALK...AND WAS MOVING WEST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE...BRAND CANYON SKYWALK...GRAND CANYON RANCH...AND BUCK AND DOW AND DIAMOND BAR ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS WHICH CAN BRING DOWN TREES AND POWER LINES AND CAUSE SIGNIFICANT BLOWING DUST AND DEBRIS. IN ADDITION...HAIL AND LIGHTNING ARE LIKELY. LIGHTNING CAN KILL! TAKE COVER IN A SUBSTANTIAL SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM PASSES. REPORT SEVERE WEATHER BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...NWSVEGAS. && LAT...LON 3579 11365 3584 11403 3609 11391 3594 11358 TIME...MOT...LOC 0408Z 105DEG 24KT 3592 11385 $$ KENNEDY
2 follow-up statements
321 WWUS55 KVEF 040427 SVSVEF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 927 PM MST FRI AUG 3 2012 AZC015-040500- /O.CON.KVEF.SV.W.0033.000000T0000Z-120804T0500Z/ MOHAVE AZ- 927 PM MST FRI AUG 3 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM MST FOR CENTRAL MOHAVE COUNTY... AT 920 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH. THIS STORM WAS LOCATED JUST EAST OF GRAND CANYON RANCH AND WILL PASS DIRECTLY OVER GRAND CANYON RANCH. THIS DANGEROUS STORM IS MOVING WEST AT 20 MPH. LOCATIONS IMPACTED INCLUDE...LOCATIONS IMPACTED INCLUDE...GRAND CANYON RANCH...BUCK AND DOW AND DIAMOND BAR ROADS...AND THE GRAND CANYON SKYWALK. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS WHICH CAN BRING DOWN TREES AND POWER LINES AND CAUSE SIGNIFICANT BLOWING DUST AND DEBRIS. IN ADDITION...HAIL AND LIGHTNING ARE LIKELY. LIGHTNING CAN KILL! TAKE COVER IN A SUBSTANTIAL SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM PASSES. REPORT SEVERE WEATHER BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...NWSVEGAS. && LAT...LON 3579 11365 3584 11403 3609 11391 3594 11358 TIME...MOT...LOC 0423Z 105DEG 24KT 3595 11397 $$ KENNEDY
968 WWUS55 KVEF 040500 SVSVEF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1000 PM MST FRI AUG 3 2012 AZC015-040503- /O.EXP.KVEF.SV.W.0033.000000T0000Z-120804T0500Z/ MOHAVE AZ- 1000 PM MST FRI AUG 3 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MOHAVE COUNTY NEAR GRAND CANYON RANCH WILL EXPIRE AT 1000 PM MST. ALTHOUGH THERE IS NO LONGER A THREAT OF SEVERE WEATHER WITH WINDS IN EXCESS OF 65 MPH...WINDS WILL LIKELY REMAIN GUSTY THROUGH 1030 PM...ALONG WITH LIGHT TO MODERATE RAIN SHOWERS AND INTERMITTENT LIGHTNING NEAR GRAND CANYON RANCH AND GRAND CANYON SKYWALK. LAT...LON 3579 11365 3584 11403 3609 11391 3594 11358 TIME...MOT...LOC 0453Z 105DEG 24KT 3600 11421 $$ KENNEDY
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 5:38 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 37 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2012Every severe thunderstorm warning in 2012
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.