Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 18, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Mar 16, 2021, 8:49 PM CDT for Hemphill County, Roberts County, Texas. It was in force for 41 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
- Mar 16, 2021, 8:49 PM CDT (01:49 UTC)
- Expired
- Mar 16, 2021, 9:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hemphill County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 121 km from the middle of the area, began a volume at 01:49 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 |
|---|---|---|---|
| Mar 16, 9:14 PM CDT | HAIL 1.75 | 1 Ssw Canadian, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 16, 7:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 1.8 hours before the alert went out and 120 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
- 127 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 3287 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
260
WUUS54 KAMA 170149
SVRAMA
TXC211-393-170230-
/O.NEW.KAMA.SV.W.0018.210317T0149Z-210317T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
849 PM CDT Tue Mar 16 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Eastern Roberts County in the Panhandle of Texas...
Southwestern Hemphill County in the Panhandle of Texas...
* Until 930 PM CDT.
* At 849 PM CDT, a severe thunderstorm was located over Lora, or near
Miami, moving north at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible.
Hail damage to vehicles is expected.
* Locations impacted include...
Canadian, Miami and Lora.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3564 10051 3565 10074 3602 10068 3593 10034
TIME...MOT...LOC 0149Z 195DEG 22KT 3574 10060
HAIL...1.00IN
WIND...60MPH
$$
TLH2 follow-up statements
547 WWUS54 KAMA 170159 SVSAMA Severe Weather Statement National Weather Service Amarillo TX 859 PM CDT Tue Mar 16 2021 TXC211-393-170230- /O.CON.KAMA.SV.W.0018.000000T0000Z-210317T0230Z/ Roberts TX-Hemphill TX- 859 PM CDT Tue Mar 16 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTHEASTERN ROBERTS AND WEST CENTRAL HEMPHILL COUNTIES... At 858 PM CDT, a severe thunderstorm was located 5 miles north of Lora, or 10 miles northeast of Miami, moving north at 35 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Canadian and Lora. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3568 10049 3578 10068 3602 10068 3593 10034 TIME...MOT...LOC 0158Z 201DEG 32KT 3583 10055 HAIL...1.25IN WIND...<50MPH $$ TLH
588 WWUS54 KAMA 170213 SVSAMA Severe Weather Statement National Weather Service Amarillo TX 913 PM CDT Tue Mar 16 2021 TXC211-393-170230- /O.CON.KAMA.SV.W.0018.000000T0000Z-210317T0230Z/ Roberts TX-Hemphill TX- 913 PM CDT Tue Mar 16 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR EAST CENTRAL ROBERTS AND WEST CENTRAL HEMPHILL COUNTIES... At 913 PM CDT, a severe thunderstorm was located 5 miles north of Canadian, moving northeast at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Canadian. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3576 10044 3591 10057 3599 10056 3593 10034 TIME...MOT...LOC 0213Z 216DEG 45KT 3599 10041 HAIL...1.00IN WIND...<50MPH $$ TLH
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 8:01 PM CDT | Special Weather Statement | AMA | Collingsworth | 44 min |
| Mar 16, 8:02 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth | 33 min |
| Mar 16, 8:17 PM CDT | Special Weather Statement | AMA | Roberts | 43 min |
| Mar 16, 8:26 PM CDT | Special Weather Statement | AMA | Roberts | 34 min |
| Mar 16, 8:33 PM CDT | Special Weather Statement | AMA | Wheeler | 27 min |
| Mar 16, 9:12 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb | 48 min |
| Mar 16, 9:27 PM CDT | Severe Thunderstorm Warning | AMA | Lipscomb | 63 min |
| Mar 16, 9:32 PM CDT | Severe Thunderstorm Warning | AMA | Lipscomb | 58 min |
| Mar 16, 9:35 PM CDT | Special Weather Statement | AMA | Hutchinson, Roberts | 40 min |
| Mar 16, 9:43 PM CDT | Severe Thunderstorm Warning | AMA | Carson, Hutchinson, Moore, Ochiltree, Potter, Roberts | 62 min |
| Mar 16, 10:43 PM CDT | Areal Flood Advisory | AMA | Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts | 4 hr |
| Mar 16, 10:47 PM CDT | Special Weather Statement | AMA | Hutchinson | 43 min |
| Mar 16, 10:54 PM CDT | Special Weather Statement | AMA | Gray, Roberts | 36 min |
| Mar 16, 11:01 PM CDT | Severe Thunderstorm Warning | AMA | Carson, Gray, Hemphill, Hutchinson, Ochiltree, Roberts and 1 more | 59 min |
| Mar 16, 11:03 PM CDT | Special Weather Statement | AMA | Lipscomb | 27 min |
| Mar 16, 11:08 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb, Ochiltree, Roberts | 67 min |
| Mar 16, 11:20 PM CDT | Areal Flood Advisory | AMA | Gray, Hemphill, Lipscomb, Roberts, Wheeler | 5 hr |
| Mar 16, 11:53 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb, Ochiltree, Roberts | 52 min |
| Mar 17, 3:16 AM CDT | High Wind Warning | AMA | Collingsworth, Donley, Wheeler | 15 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.