Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 13, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Feb 19, 2017, 10:07 PM CST for 13 counties in Oklahoma. It was in force for 53 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
- Feb 19, 2017, 10:07 PM CST (04:07 UTC)
- Expired
- Feb 19, 2017, 11:00 PM CST
- In force
- 53 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Canadian County, OK, Carter County, OK, Cleveland County, OK, Garvin County, OK, Jefferson County, OK, Kingfisher County, OK, Logan County, OK, Love County, OK, McClain County, OK, Murray County, OK, Oklahoma County, OK, Pottawatomie County, OK, Stephens County, OK
The radar
The Norman radar (KTLX), 129 km from the middle of the area, began a volume at 04:10 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 19, 4:07 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.1 hours before the alert went out and 116 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
- 325 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.9
The text
As transmitted.
259
WUUS54 KOUN 200407
SVROUN
OKC017-019-027-049-067-073-083-085-087-099-109-125-137-200500-
/O.NEW.KOUN.SV.W.0013.170220T0407Z-170220T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
1007 PM CST SUN FEB 19 2017
The National Weather Service in Norman has issued a
* Severe Thunderstorm Warning for...
Northeastern Jefferson County in southern Oklahoma...
Southeastern Kingfisher County in central Oklahoma...
Garvin County in southern Oklahoma...
Northwestern Love County in southern Oklahoma...
Oklahoma County in central Oklahoma...
Southern Logan County in central Oklahoma...
Northeastern Canadian County in central Oklahoma...
McClain County in central Oklahoma...
Southeastern Stephens County in southern Oklahoma...
Carter County in southern Oklahoma...
Cleveland County in central Oklahoma...
Western Murray County in southern Oklahoma...
Western Pottawatomie County in central Oklahoma...
* Until 1100 PM CST
* At 1006 PM CST, severe thunderstorms were located along a line
extending from near Cashion to near Maysville to 6 miles northeast
of Nocona, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Oklahoma City, Norman, Edmond, Moore, Midwest City, Ardmore, Del
City, Guthrie, Newcastle, Pauls Valley, Purcell, Davis, Bethany,
Choctaw, Warr Acres, The Village, Noble, Piedmont, Harrah and Lone
Grove.
This includes the following highways...
Interstate 35 between mile markers 22 and 161.
Interstate 40 between mile markers 141 and 175.
Interstate 44 between mile markers 105 and 149.
Interstate 240 between mile markers 1 and 16.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3383 9721 3389 9731 3388 9734 3382 9737
3382 9744 3391 9747 3390 9759 3395 9759
3399 9768 3480 9750 3583 9779 3596 9726
3486 9696 3389 9718 3390 9718 3391 9724
3387 9726 3383 9719 3380 9720
TIME...MOT...LOC 0406Z 262DEG 20KT 3578 9770 3482 9743 3384 9765
HAIL...<.75IN
WIND...60MPH
$$
WR2 follow-up statements
840
WWUS54 KOUN 200448
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
1048 PM CST SUN FEB 19 2017
OKC017-067-073-083-085-125-137-200458-
/O.CAN.KOUN.SV.W.0013.000000T0000Z-170220T0500Z/
Jefferson OK-Kingfisher OK-Love OK-Stephens OK-Logan OK-Canadian OK-
Pottawatomie OK-
1048 PM CST SUN FEB 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JEFFERSON...
SOUTHEASTERN KINGFISHER...NORTHWESTERN LOVE...SOUTHEASTERN
STEPHENS...SOUTHERN LOGAN...NORTHEASTERN CANADIAN AND WESTERN
POTTAWATOMIE COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened.
LAT...LON 3482 9739 3548 9764 3558 9735 3481 9709
3438 9722 3437 9751
TIME...MOT...LOC 0448Z 271DEG 17KT 3554 9748 3481 9724 3438 9733
$$
OKC019-027-049-087-099-109-200500-
/O.CON.KOUN.SV.W.0013.000000T0000Z-170220T0500Z/
Garvin OK-Oklahoma OK-Carter OK-Cleveland OK-Murray OK-McClain OK-
1048 PM CST SUN FEB 19 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CST
FOR CENTRAL GARVIN...SOUTHWESTERN OKLAHOMA...NORTHWESTERN CARTER...
CLEVELAND...WESTERN MURRAY AND WESTERN MCCLAIN COUNTIES...
At 1048 PM CST, severe thunderstorms were located along a line
extending from near Oklahoma City to near Paoli to 3 miles north of
Milo, moving east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Oklahoma City, Norman, Moore, Midwest City, Del City, Newcastle,
Pauls Valley, Purcell, Choctaw, Noble, Slaughterville, Spencer,
Nicoma Park, Wynnewood, Lexington, Goldsby, Valley Brook, Elmore
City, Wayne and Washington.
This includes the following highways...
Interstate 35 between mile markers 57 and 133.
Interstate 40 between mile markers 144 and 164.
Interstate 44 between mile markers 112 and 122.
Interstate 240 between mile markers 1 and 15.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3482 9739 3548 9764 3558 9735 3481 9709
3438 9722 3437 9751
TIME...MOT...LOC 0448Z 271DEG 17KT 3554 9748 3481 9724 3438 9733
HAIL...<.75IN
WIND...60MPH
$$
WR659
WWUS54 KOUN 200450
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
1050 PM CST SUN FEB 19 2017
OKC019-027-049-087-099-109-200500-
/O.EXP.KOUN.SV.W.0013.000000T0000Z-170220T0500Z/
Garvin OK-Oklahoma OK-Carter OK-Cleveland OK-Murray OK-McClain OK-
1050 PM CST SUN FEB 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GARVIN...SOUTHWESTERN
OKLAHOMA...NORTHWESTERN CARTER...CLEVELAND...WESTERN MURRAY AND
WESTERN MCCLAIN COUNTIES WILL EXPIRE AT 1100 PM CST...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
and heavy rain are still possible with these thunderstorms.
LAT...LON 3482 9739 3548 9764 3558 9735 3481 9709
3438 9722 3437 9751
TIME...MOT...LOC 0450Z 262DEG 20KT 3554 9747 3481 9723 3438 9732
$$
WRThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 6:07 PM CST | Special Weather Statement | OUN | Caddo | 23 min |
| Feb 19, 6:25 PM CST | Areal Flood Advisory | OUN | Blaine, Caddo, Custer, Dewey, Kiowa, Major and 1 more | 2 hr |
| Feb 19, 6:35 PM CST | Special Weather Statement | OUN | Canadian | 25 min |
| Feb 19, 7:33 PM CST | Severe Thunderstorm Warning | OUN | Cotton, Jefferson | 42 min |
| Feb 19, 7:49 PM CST | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Tillman | 26 min |
| Feb 19, 7:58 PM CST | Severe Thunderstorm Warning | OUN | Jefferson | 47 min |
| Feb 19, 8:11 PM CST | Severe Thunderstorm Warning | OUN | Jefferson | 34 min |
| Feb 19, 8:20 PM CST | Special Weather Statement | OUN | Garfield | 25 min |
| Feb 19, 8:29 PM CST | Severe Thunderstorm Warning | OUN | Caddo, Comanche | 31 min |
| Feb 19, 8:37 PM CST | Severe Thunderstorm Warning | OUN | Carter, Garvin, Grady, Jefferson, Stephens | 38 min |
| Feb 19, 8:50 PM CST | Severe Thunderstorm Warning | OUN | Caddo, Carter, Comanche, Garvin, Grady, Jefferson and 4 more | 40 min |
| Feb 19, 9:27 PM CST | Severe Thunderstorm Warning | OUN | Canadian, Carter, Cleveland, Garvin, Grady, Jefferson and 8 more | 48 min |
| Feb 19, 9:39 PM CST | Flash Flood Warning | OUN | Jefferson | 3 hr |
| Feb 19, 10:03 PM CST | Areal Flood Advisory | OUN | Canadian, Cleveland, Grady, McClain, Oklahoma | 117 min |
| Feb 19, 10:57 PM CST | Special Weather Statement | OUN | Cleveland, Murray, Oklahoma, Pottawatomie | 48 min |
| Feb 19, 11:01 PM CST | Severe Thunderstorm Warning | OUN | Lincoln, Oklahoma | 29 min |
| Feb 19, 11:36 PM CST | Special Weather Statement | OUN | Lincoln, Pottawatomie | 24 min |
| Feb 19, 11:56 PM CST | Special Weather Statement | OUN | Payne | 34 min |
| Feb 20, 12:29 AM CST | Special Weather Statement | OUN | Payne | 31 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2017Every severe thunderstorm warning in 2017
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.