Alert archive / Nevada / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 61, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 13, 2021, 2:23 PM PDT for Clark County, Nevada; San Bernardino County, California. It was in force for 52 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 13, 2021, 2:23 PM PDT (21:23 UTC)
- Expired
- Aug 13, 2021, 3:15 PM PDT
- In force
- 52 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties San Bernardino County, CA, Clark County, NV
The radar
The Las Vegas radar (KESX), 51 km from the middle of the area, began a volume at 21:22 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 12:00Z, 9.4 hours before the alert went out and 107 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
- 487 J/kg
- Mixed-layer CIN
- -323 J/kg
- Mixed-layer LCL
- 2453 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
240
WUUS55 KVEF 132123
SVRVEF
CAC071-NVC003-132215-
/O.NEW.KVEF.SV.W.0061.210813T2123Z-210813T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
223 PM PDT Fri Aug 13 2021
The National Weather Service in Las Vegas has issued a
* Severe Thunderstorm Warning for...
North central San Bernardino County in southern California...
Central Clark County in southern Nevada...
* Until 315 PM PDT.
* At 222 PM PDT, a severe thunderstorm was located near Nipton, or 15
miles south of Primm, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs and trees.
* Locations impacted include...
Cima, Nipton, and Nipton And Ivanpah Roads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3560 11535 3554 11511 3514 11534 3526 11554
TIME...MOT...LOC 2122Z 018DEG 4KT 3541 11531
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
DSB2 follow-up statements
885
WWUS55 KVEF 132201
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
301 PM PDT Fri Aug 13 2021
CAC071-NVC003-132215-
/O.CON.KVEF.SV.W.0061.000000T0000Z-210813T2215Z/
San Bernardino CA-Clark NV-
301 PM PDT Fri Aug 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM PDT
FOR NORTH CENTRAL SAN BERNARDINO AND CENTRAL CLARK COUNTIES...
At 300 PM PDT, a severe thunderstorm was located 7 miles south of
Nipton, or 13 miles northeast of Cima, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs and trees.
Locations impacted include...
Cima, Nipton, and Nipton And Ivanpah Roads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3560 11535 3554 11511 3514 11534 3526 11554
TIME...MOT...LOC 2200Z 018DEG 4KT 3537 11533
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
DSB143
WWUS55 KVEF 132211
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
311 PM PDT Fri Aug 13 2021
CAC071-NVC003-132221-
/O.EXP.KVEF.SV.W.0061.000000T0000Z-210813T2215Z/
San Bernardino CA-Clark NV-
311 PM PDT Fri Aug 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SAN BERNARDINO
AND CENTRAL CLARK COUNTIES WILL EXPIRE AT 315 PM PDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 3560 11535 3554 11511 3514 11534 3526 11554
TIME...MOT...LOC 2211Z 018DEG 4KT 3537 11533
$$
DSBThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 7:06 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 39 min |
| Aug 12, 7:40 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 50 min |
| Aug 12, 7:46 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 12, 8:17 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 58 min |
| Aug 12, 8:42 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 12, 9:10 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 50 min |
| Aug 13, 2:37 AM PDT | Excessive Heat Watch | VEF | Clark, Nye | 12 hr |
| Aug 13, 2:18 PM PDT | Excessive Heat Warning | VEF | Clark, Nye | 3 days |
| Aug 13, 2:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Aug 13, 3:20 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Aug 13, 4:04 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 41 min |
| Aug 13, 4:55 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 50 min |
Nearby
Severe Thunderstorm Warnings in Nevada, 2021Severe Thunderstorm Warnings in California, 2021Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.