Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 252, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 12, 2021, 6:24 PM CDT for Potter County, Randall County, Texas. It was in force for 46 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 12, 2021, 6:24 PM CDT (23:24 UTC)
- Expired
- Aug 12, 2021, 7:10 PM CDT
- In force
- 46 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Potter County, TX, Randall County, TX
The radar
The Amarillo radar (KAMA), 14 km from the middle of the area, began a volume at 23:28 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 15 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
- 346 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 1810 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted.
822 WUUS54 KAMA 122324 SVRAMA TXC375-381-130030- /O.NEW.KAMA.SV.W.0252.210812T2324Z-210813T0030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Amarillo TX 624 PM CDT Thu Aug 12 2021 The National Weather Service in Amarillo has issued a * Severe Thunderstorm Warning for... Northeastern Randall County in the Panhandle of Texas... Southeastern Potter County in the Panhandle of Texas... * Until 730 PM CDT. * At 623 PM CDT, a severe thunderstorm was located 4 miles north of Lake Tanglewood, or 6 miles southeast of Amarillo, moving north at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Minor damage to roofs, siding, and trees is possible. * Locations impacted include... Amarillo, Canyon, Lake Tanglewood, Mescalero Park and Timbercreek Canyon. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3502 10204 3544 10196 3543 10162 3503 10163 TIME...MOT...LOC 2323Z 189DEG 23KT 3512 10178 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ LFM
2 follow-up statements
177 WWUS54 KAMA 130002 SVSAMA Severe Weather Statement National Weather Service Amarillo TX 702 PM CDT Thu Aug 12 2021 TXC375-381-130030- /O.CON.KAMA.SV.W.0252.000000T0000Z-210813T0030Z/ Randall TX-Potter TX- 702 PM CDT Thu Aug 12 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHEASTERN RANDALL AND SOUTHEASTERN POTTER COUNTIES... At 702 PM CDT, a severe thunderstorm was located near Amarillo, moving northeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Minor damage to roofs, siding, and trees is possible. Locations impacted include... Amarillo. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3510 10192 3544 10187 3543 10162 3509 10163 TIME...MOT...LOC 0002Z 218DEG 19KT 3518 10180 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ LFM
081
WWUS54 KAMA 130010
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
710 PM CDT Thu Aug 12 2021
TXC375-381-130020-
/O.CAN.KAMA.SV.W.0252.000000T0000Z-210813T0030Z/
Randall TX-Potter TX-
710 PM CDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RANDALL AND
SOUTHEASTERN POTTER COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled. However gusty winds are still possible with this
thunderstorm.
LAT...LON 3510 10192 3544 10187 3543 10162 3509 10163
TIME...MOT...LOC 0008Z 189DEG 23KT 3523 10179
$$
LFMThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 3:16 PM CDT | Special Weather Statement | AMA | Hartley | 29 min |
| Aug 12, 3:44 PM CDT | Special Weather Statement | AMA | Hartley | 31 min |
| Aug 12, 4:03 PM CDT | Severe Thunderstorm Warning | AMA | Dallam | 42 min |
| Aug 12, 4:14 PM CDT | Severe Thunderstorm Warning | AMA | Moore, Sherman | 46 min |
| Aug 12, 4:41 PM CDT | Special Weather Statement | AMA | Armstrong | 34 min |
| Aug 12, 4:48 PM CDT | Areal Flood Advisory | AMA | Hartley, Moore, Sherman | 3 hr |
| Aug 12, 5:05 PM CDT | Special Weather Statement | AMA | Potter | 25 min |
| Aug 12, 5:16 PM CDT | Special Weather Statement | AMA | Armstrong | 29 min |
| Aug 12, 5:29 PM CDT | Special Weather Statement | AMA | Armstrong | 31 min |
| Aug 12, 5:42 PM CDT | Special Weather Statement | AMA | Randall | 33 min |
| Aug 12, 5:52 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 38 min |
| Aug 12, 5:58 PM CDT | Special Weather Statement | AMA | Potter | 32 min |
| Aug 12, 6:13 PM CDT | Special Weather Statement | AMA | Armstrong | 32 min |
| Aug 12, 6:57 PM CDT | Special Weather Statement | AMA | Hutchinson | 33 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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.