Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 607, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Dec 26, 2018, 5:00 PM CST for Foard County, Hardeman County, Wilbarger County, Texas; Greer County, Harmon County, Jackson County, Oklahoma. It was in force for 45 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
- Dec 26, 2018, 5:00 PM CST (23:00 UTC)
- Expired
- Dec 26, 2018, 5:45 PM CST
- In force
- 45 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Greer County, OK, Harmon County, OK, Jackson County, OK, Foard County, TX, Hardeman County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 79 km from the middle of the area, began a volume at 23:02 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, 11.0 hours before the alert went out and 199 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
- 329 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
053
WUUS54 KOUN 262300
SVROUN
OKC055-057-065-TXC155-197-487-262345-
/O.NEW.KOUN.SV.W.0607.181226T2300Z-181226T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
500 PM CST WED DEC 26 2018
The National Weather Service in Norman has issued a
* Severe Thunderstorm Warning for...
Southwestern Jackson County in southwestern Oklahoma...
Harmon County in southwestern Oklahoma...
South central Greer County in southwestern Oklahoma...
Foard County in northern Texas...
Western Wilbarger County in northern Texas...
Hardeman County in northern Texas...
* Until 545 PM CST.
* At 500 PM CST, severe thunderstorms were located along a line
extending from 7 miles southwest of Dodson to 3 miles southwest of
Goodlett to 6 miles southeast of Crowell, moving northeast at 40
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Vernon, Quanah, Hollis, Crowell, Chillicothe, Eldorado, Gould,
Thalia, Vinson, Duke, Margaret, Goodlett, Lockett, Medicine Mound,
Odell, McQueen, Lazare, Rayland, Copper Breaks State Park and
McKnight.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3423 10000 3487 10000 3495 9963 3384 9912
3384 10002 3423 10005
TIME...MOT...LOC 2300Z 244DEG 37KT 3468 10010 3429 9991 3390 9968
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
301 follow-up statement
423
WWUS54 KOUN 262325
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
525 PM CST WED DEC 26 2018
OKC055-057-065-TXC155-197-487-262345-
/O.CON.KOUN.SV.W.0607.000000T0000Z-181226T2345Z/
Jackson OK-Harmon OK-Greer OK-Foard TX-Wilbarger TX-Hardeman TX-
525 PM CST WED DEC 26 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CST
FOR SOUTHWESTERN JACKSON...HARMON...SOUTH CENTRAL GREER...FOARD...
WESTERN WILBARGER AND HARDEMAN COUNTIES...
At 525 PM CST, severe thunderstorms were located along a line
extending from 7 miles south of Vinson to 5 miles south of Eldorado
to 5 miles southwest of Lockett, moving east at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Vernon, Quanah, Hollis, Crowell, Chillicothe, Eldorado, Gould,
Thalia, Vinson, Duke, Margaret, Goodlett, Lockett, Medicine Mound,
Odell, McQueen, Lazare, Rayland, Copper Breaks State Park and
McKnight.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3423 10000 3487 10000 3495 9963 3384 9912
3384 10002 3423 10005
TIME...MOT...LOC 2325Z 270DEG 37KT 3479 9983 3440 9964 3401 9941
TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
$$
30The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 26, 8:40 AM CST | River Flood Warning | OUN | Wichita, Wilbarger | 16 hr |
| Dec 26, 10:35 AM CST | Special Weather Statement | OUN | Wichita | 25 min |
| Dec 26, 11:06 AM CST | Special Weather Statement | OUN | Archer, Wichita | 39 min |
| Dec 26, 12:23 PM CST | Special Weather Statement | OUN | Archer, Wichita | 52 min |
| Dec 26, 12:58 PM CST | Areal Flood Advisory | OUN | Archer, Wichita | 3 hr |
| Dec 26, 1:43 PM CST | River Flood Warning | OUN | Clay, Wichita | 24 hr |
| Dec 26, 2:47 PM CST | Flash Flood Warning | OUN | Wichita | 3 hr |
| Dec 26, 4:28 PM CST | Special Weather Statement | OUN | Foard, Knox | 32 min |
| Dec 26, 5:40 PM CST | Severe Thunderstorm Warning | OUN | Hardeman, Wilbarger | 50 min |
| Dec 26, 5:55 PM CST | Severe Thunderstorm Warning | OUN | Archer, Baylor, Clay, Wichita, Wilbarger | 50 min |
| Dec 26, 7:51 AM CST | Special Weather Statement | OUN | Comanche | 24 min |
| Dec 26, 9:56 AM CST | Special Weather Statement | OUN | Jefferson, Stephens | 49 min |
| Dec 26, 1:31 PM CST | River Flood Warning | OUN | Jefferson | 37 hr |
| Dec 26, 1:33 PM CST | River Flood Warning | OUN | Cotton | 68 hr |
| Dec 26, 1:34 PM CST | River Flood Warning | OUN | Comanche, Cotton | 4 days |
| Dec 26, 2:10 PM CST | Areal Flood Advisory | OUN | Caddo, Comanche, Grady | 3 hr |
| Dec 26, 2:15 PM CST | Flash Flood Warning | OUN | Comanche | 3 hr |
| Dec 26, 2:41 PM CST | Areal Flood Advisory | OUN | Canadian, Cleveland, Grady, McClain, Oklahoma | 3 hr |
| Dec 26, 3:10 PM CST | Flash Flood Warning | OUN | Caddo, Comanche, Grady | 3 hr |
| Dec 26, 3:39 PM CST | Areal Flood Advisory | OUN | Cleveland, McClain | 3 hr |
| Dec 26, 4:36 PM CST | Special Weather Statement | OUN | Carter, Johnston, Love, Marshall, Murray, Pontotoc | 39 min |
| Dec 26, 5:53 PM CST | Special Weather Statement | OUN | Hughes, Pontotoc, Seminole | 37 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2018Severe 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.