Alert archive / Nevada / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 72, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 10, 2021, 1:44 PM PDT for Clark County, Nevada. It was in force for 46 min. 1 report 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
- Sep 10, 2021, 1:44 PM PDT (20:44 UTC)
- Expired
- Sep 10, 2021, 2:30 PM PDT
- In force
- 46 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), 38 km from the middle of the area, began a volume at 20:47 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 |
|---|---|---|---|
| Sep 10, 1:44 PM PDT | TSTM WND GST 74 | Henderson Executive Air, NV | WIND GUST OF 74 MPH OCCURRED AT 0144 PM. |
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 12:00Z, 8.7 hours before the alert went out and 58 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
- 612 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 2841 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
460 WUUS55 KVEF 102044 SVRVEF NVC003-102130- /O.NEW.KVEF.SV.W.0072.210910T2044Z-210910T2130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Las Vegas NV 144 PM PDT Fri Sep 10 2021 The National Weather Service in Las Vegas has issued a * Severe Thunderstorm Warning for... Central Clark County in southern Nevada... * Until 230 PM PDT. * At 144 PM PDT, a severe thunderstorm was located over Seven Hills, or over Anthem, moving northeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs and trees. * Locations impacted include... Las Vegas, Henderson, North Las Vegas, Boulder City, Anthem, Mountains Edge, The Strip, Nellis AFB, Downtown Las Vegas, East Las Vegas, Sam Boyd Stadium, Las Vegas Bay, Southern Highlands, Aliante, Lake Las Vegas, Spring Valley, Green Valley, Enterprise, Paradise and Lone Mountain. This includes Interstate 15 in Nevada between mile markers 24 and 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3581 11506 3599 11534 3635 11522 3606 11474 TIME...MOT...LOC 2044Z 224DEG 18KT 3597 11514 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ BKP
3 follow-up statements
500 WWUS55 KVEF 102051 SVSVEF Severe Weather Statement National Weather Service Las Vegas NV 151 PM PDT Fri Sep 10 2021 NVC003-102130- /O.CON.KVEF.SV.W.0072.000000T0000Z-210910T2130Z/ Clark NV- 151 PM PDT Fri Sep 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM PDT FOR CENTRAL CLARK COUNTY... At 149 PM PDT, a severe thunderstorm was located over Seven Hills, or over Anthem, moving northeast at 20 mph. So far peak wind gusts of 50 to 55 mph have been observed at Henderson Executive Airport and along St. Rose Parkway between Las Vegas Blvd. and Eastern. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs and trees. Locations impacted include... Las Vegas, Henderson, North Las Vegas, Boulder City, Anthem, Mountains Edge, The Strip, Nellis AFB, Downtown Las Vegas, East Las Vegas, Sam Boyd Stadium, Las Vegas Bay, Southern Highlands, Aliante, Lake Las Vegas, Spring Valley, Green Valley, Enterprise, Paradise and Lone Mountain. This includes Interstate 15 in Nevada between mile markers 24 and 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3581 11506 3599 11534 3635 11522 3606 11474 TIME...MOT...LOC 2049Z 224DEG 18KT 3599 11511 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ BKP
250 WWUS55 KVEF 102103 SVSVEF Severe Weather Statement National Weather Service Las Vegas NV 203 PM PDT Fri Sep 10 2021 NVC003-102130- /O.CON.KVEF.SV.W.0072.000000T0000Z-210910T2130Z/ Clark NV- 203 PM PDT Fri Sep 10 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM PDT FOR CENTRAL CLARK COUNTY... At 202 PM PDT, a severe thunderstorm was located over Green Valley, moving northeast at 20 mph. Henderson Executive Airport observed at peak wind of 74 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs and trees. Locations impacted include... Las Vegas, Henderson, North Las Vegas, Boulder City, Anthem, Mountains Edge, The Strip, Nellis AFB, Downtown Las Vegas, East Las Vegas, Sam Boyd Stadium, Las Vegas Bay, Southern Highlands, Aliante, Lake Las Vegas, Spring Valley, Green Valley, Enterprise, Paradise and Lone Mountain. This includes Interstate 15 in Nevada between mile markers 24 and 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3581 11506 3599 11534 3635 11522 3606 11474 TIME...MOT...LOC 2102Z 224DEG 18KT 3604 11505 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ BKP
197
WWUS55 KVEF 102128
SVSVEF
Severe Weather Statement
National Weather Service Las Vegas NV
228 PM PDT Fri Sep 10 2021
NVC003-102137-
/O.EXP.KVEF.SV.W.0072.000000T0000Z-210910T2130Z/
Clark NV-
228 PM PDT Fri Sep 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CLARK COUNTY WILL
EXPIRE AT 230 PM PDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorm.
LAT...LON 3581 11506 3599 11534 3635 11522 3606 11474
TIME...MOT...LOC 2127Z 224DEG 18KT 3613 11494
$$
BKPThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 5:11 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 34 min |
| Sep 10, 1:48 AM PDT | Excessive Heat Warning | VEF | 4 days | |
| Sep 10, 2:46 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 44 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.