Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 236, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 8, 2018, 5:05 PM CDT for Cimarron County, Texas County, Oklahoma. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 8, 2018, 5:05 PM CDT (22:05 UTC)
- Expired
- Aug 8, 2018, 5:45 PM CDT
- In force
- 40 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Cimarron County, OK, Texas County, OK
The radar
The Amarillo radar (KAMA), 170 km from the middle of the area, began a volume at 22:07 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, 10.1 hours before the alert went out and 171 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
- 30 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 2381 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- -19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 3:22 PM CDT, 1 hour 43 minutes earlier.
Area forecast discussion, Aug 8, 3:22 PM CDT, 1 hour 43 minutes before
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</html>Hazardous weather outlook, Aug 8, 3:10 PM CDT, 1 hour 55 minutes before
Hazardous Weather Outlook National Weather Service Amarillo TX 310 PM CDT Wed Aug 8 2018 OKZ001>003-TXZ001>020-317-091100- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- Palo Duro Canyon- 310 PM CDT Wed Aug 8 2018 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...This Afternoon and Tonight. Scattered to numerous thunderstorms are expected this evening and tonight across the Texas and Oklahoma Panhandles. Some storms may become strong to marginally severe, with brief gusty winds the being primary hazard. In addition, the strongest storms may produce heavy rainfall, which could lead to localized flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorms are expected across parts of the Panhandles through Tuesday. Some of the storms may become strong to marginally severe, with damaging winds and hail as the main threats. Heavy rainfall may also lead to localized flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. Schneider
In the hours before
Special weather statement, Aug 8, 4:38 PM CDT, 27 minutes before
Special Weather Statement National Weather Service Amarillo TX 438 PM CDT WED AUG 8 2018 OKZ001-082215- Cimarron OK- 438 PM CDT WED AUG 8 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CIMARRON COUNTY UNTIL 515 PM CDT... At 437 PM CDT, Doppler radar was tracking a strong thunderstorm 8 miles north of Kenton, or 31 miles northwest of Boise City, moving south at 20 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Black Mesa Park and Kenton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take shelter in a sturdy building if threatening weather approaches. && LAT...LON 3700 10279 3682 10269 3674 10300 3700 10300 TIME...MOT...LOC 2137Z 344DEG 18KT 3702 10294 TLH
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 12:48 AM CDT | Special Weather Statement | AMA | Deaf Smith, Oldham | 42 min |
| Aug 8, 1:22 AM CDT | Special Weather Statement | AMA | Deaf Smith, Randall | 53 min |
| Aug 8, 1:39 AM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Potter, Randall | 66 min |
| Aug 8, 3:41 AM CDT | Special Weather Statement | AMA | Carson | 34 min |
| Aug 8, 4:01 AM CDT | Areal Flood Advisory | AMA | Oldham | 119 min |
| Aug 8, 4:48 AM CDT | Special Weather Statement | AMA | Lipscomb | 27 min |
| Aug 8, 6:48 PM CDT | Special Weather Statement | AMA | Sherman | 27 min |
| Aug 8, 4:04 AM CDT | Special Weather Statement | AMA | Beaver | 41 min |
| Aug 8, 4:38 PM CDT | Special Weather Statement | AMA | Cimarron | 37 min |
| Aug 8, 4:55 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron | 65 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2018Every severe thunderstorm warning in 2018
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.