Alert archive / Nevada / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 18, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 13, 2021, 7:36 PM PDT for Clark County, Nevada. It was in force for 69 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 13, 2021, 7:36 PM PDT (02:36 UTC)
- Expired
- Jul 13, 2021, 8:45 PM PDT
- In force
- 69 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Clark County, NV
The radar
The Las Vegas radar (KESX), 107 km from the middle of the area, began a volume at 02:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 13, 8:09 PM PDT | TSTM WND GST 70 | 4 E Moapa, NV | |
| Jul 13, 8:41 PM PDT | TSTM WND DMG | 2 Ne Bunkerville, NV | TREE BLOWN OVER INTO ROADWAY BY WINDS ASSOCIATED WITH A THUNDERSTORM. GENERAL LOCATION ESTIMATED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 00:00Z, 2.6 hours before the alert went out and 73 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
- 829 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 3527 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
303
WUUS55 KVEF 140236
SVRVEF
NVC003-140345-
/O.NEW.KVEF.SV.W.0018.210714T0236Z-210714T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Las Vegas NV
736 PM PDT Tue Jul 13 2021
The National Weather Service in Las Vegas has issued a
* Severe Thunderstorm Warning for...
Northeastern Clark County in southern Nevada...
* Until 845 PM PDT.
* At 736 PM PDT, a severe thunderstorm was located over Sr 168 Mile
Marker 21, or 16 miles northwest of Moapa Town, moving southeast at
20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs and trees.
* Locations impacted include...
Mesquite, Moapa Town, Moapa Valley, Sr 168 Mile Marker 21, Coyote
Springs, Logandale and Bunkerville.
This includes the following highways...
Interstate 15 in Arizona near mile marker 3.
Interstate 15 in Nevada between mile markers 64 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3650 11460 3637 11486 3642 11511 3661 11522
3683 11504 3685 11498 3685 11476 3683 11472
3680 11408
TIME...MOT...LOC 0236Z 332DEG 16KT 3679 11490
HAIL...<.75IN
WIND...60MPH
$$
CP2 follow-up statements
002
WWUS55 KVEF 140319
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
819 PM PDT Tue Jul 13 2021
NVC003-140345-
/O.CON.KVEF.SV.W.0018.000000T0000Z-210714T0345Z/
Clark NV-
819 PM PDT Tue Jul 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM PDT
FOR NORTHEASTERN CLARK COUNTY...
At 817 PM PDT, a severe thunderstorm was located 10 miles west of
Moapa Town, moving southeast at 20 mph. At 8:09pm there was an
observed wind gust of 70 mph in Moapa, NV.
HAZARD...60 to 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs and trees.
Locations impacted include...
Mesquite, Moapa Town, Moapa Valley, Sr 168 Mile Marker 21, Coyote
Springs, Logandale and Bunkerville.
This includes the following highways...
Interstate 15 in Arizona near mile marker 3.
Interstate 15 in Nevada between mile markers 64 and 120.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3650 11460 3637 11486 3642 11511 3661 11522
3683 11504 3685 11498 3685 11476 3683 11472
3680 11408
TIME...MOT...LOC 0317Z 332DEG 16KT 3663 11479
HAIL...<.75IN
WIND...60MPH
$$
CP298
WWUS55 KVEF 140336
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
836 PM PDT Tue Jul 13 2021
NVC003-140345-
/O.EXP.KVEF.SV.W.0018.000000T0000Z-210714T0345Z/
Clark NV-
836 PM PDT Tue Jul 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLARK COUNTY WILL
EXPIRE AT 845 PM PDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds up to 55 mph are still
possible with this thunderstorm.
LAT...LON 3650 11460 3637 11486 3642 11511 3661 11522
3683 11504 3685 11498 3685 11476 3683 11472
3680 11408
TIME...MOT...LOC 0335Z 332DEG 16KT 3657 11475
$$
CPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:41 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 49 min |
| Jul 13, 7:24 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 96 min |
| Jul 13, 8:52 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 53 min |
Nearby
Severe Thunderstorm Warnings in Nevada, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.