Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 721, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Aug 23, 2016, 6:10 PM CDT for Roger Mills County, Oklahoma. It was in force for 35 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
- Aug 23, 2016, 6:10 PM CDT (23:10 UTC)
- Expired
- Aug 23, 2016, 6:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Roger Mills County, OK
The radar
The Altus AFB radar (KFDR), 170 km from the middle of the area, began a volume at 23:10 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 |
|---|---|---|---|
| Aug 23, 6:15 PM CDT | HAIL 1 | 3 Nnw Reydon, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.2 hours before the alert went out and 178 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
- 1421 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.5
The text
As transmitted.
549
WUUS54 KOUN 232310
SVROUN
OKC129-232345-
/O.NEW.KOUN.SV.W.0721.160823T2310Z-160823T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
610 PM CDT TUE AUG 23 2016
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ROGER MILLS COUNTY IN WESTERN OKLAHOMA...
* UNTIL 645 PM CDT
* AT 610 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR REYDON TO 9 MILES SOUTH OF ALLISON...MOVING
NORTHEAST AT 20 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
* LOCATIONS IMPACTED INCLUDE...
REYDON...SWEETWATER...ROLL...CRAWFORD AND DEMPSEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3580 10000 3590 9979 3589 9978 3588 9975
3586 9972 3585 9967 3568 9966 3544 9981
3542 9988 3542 10000
TIME...MOT...LOC 2310Z 228DEG 17KT 3567 9996 3546 10009
HAIL...0.88IN
WIND...60MPH
$$
BRB1 follow-up statement
456
WWUS54 KOUN 232323
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
623 PM CDT TUE AUG 23 2016
OKC129-232345-
/O.CON.KOUN.SV.W.0721.000000T0000Z-160823T2345Z/
ROGER MILLS OK-
623 PM CDT TUE AUG 23 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR WESTERN ROGER MILLS COUNTY...
AT 622 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES NORTHWEST OF CHEYENNE TO 7 MILES SOUTHEAST OF
ALLISON...MOVING NORTHEAST AT 25 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES.
LOCATIONS IMPACTED INCLUDE...
REYDON...ROLL...CRAWFORD AND DEMPSEY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 3549 9978 3545 10000 3580 10000 3590 9979
3589 9978 3588 9975 3586 9972 3585 9967
3568 9966
TIME...MOT...LOC 2322Z 241DEG 24KT 3568 9978 3552 10001
HAIL...0.88IN
WIND...60MPH
$$
BRBThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 4:22 PM CDT | Special Weather Statement | OUN | Roger Mills | 23 min |
| Aug 23, 4:36 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 39 min |
| Aug 23, 5:05 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Roger Mills | 40 min |
| Aug 23, 5:44 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Custer, Roger Mills, Washita | 46 min |
| Aug 23, 5:57 PM CDT | Special Weather Statement | OUN | Roger Mills | 33 min |
| Aug 23, 6:11 PM CDT | Areal Flood Advisory | OUN | Roger Mills | 2 hr |
| Aug 23, 6:28 PM CDT | Severe Thunderstorm Warning | OUN | Custer | 47 min |
| Aug 23, 6:46 PM CDT | Special Weather Statement | OUN | Roger Mills | 29 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2016Every severe thunderstorm warning in 2016
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.