Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 291, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Oct 6, 2014, 3:31 AM CDT for Garvin County, McClain County, Stephens County, Oklahoma. It was in force for 22 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
- Oct 6, 2014, 3:31 AM CDT (08:31 UTC)
- Expired
- Oct 6, 2014, 3:53 AM CDT
- In force
- 22 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Garvin County, OK, McClain County, OK, Stephens County, OK
The radar
The Norman radar (KTLX), 71 km from the middle of the area, began a volume at 08:32 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
Norman, OK (KOUN), launched 00:00Z, 8.5 hours before the alert went out and 55 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
- 321 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 2072 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 6, 12:05 AM CDT, 3 hours 26 minutes earlier.
Area forecast discussion, Oct 6, 12:05 AM CDT, 3 hours 26 minutes before
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</html>Hazardous weather outlook, Oct 5, 11:50 AM CDT, 15 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 1150 AM CDT SUN OCT 5 2014 OKZ004>048-050>052-TXZ083>090-061200- HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD- NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE- BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN- CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON- TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON- JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN- FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY- 1150 AM CDT SUN OCT 5 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...THROUGH TONIGHT... .THUNDERSTORMS... SHOWERS AND A FEW THUNDERSTORMS WILL BE POSSIBLE ACROSS PARTS OF SOUTHERN OKLAHOMA AND WESTERN NORTH TEXAS LATE TONIGHT INTO MONDAY MORNING AS MOISTURE SPREADS BACK NORTH INTO PARTS OF THE AREA...AND A COMPACT UPPER STORM SYSTEM MOVES THROUGH THE SOUTHERN PLAINS. A FEW OF THE STORMS IN SOUTHEAST OKLAHOMA COULD BECOME STRONG TO MARGINALLY SEVERE WITH HAIL UP TO THE SIZE OF QUARTERS. OTHERWISE... CLOUD TO GROUND LIGHTNING AND BRIEF HEAVY DOWNPOURS WILL BE THE MAIN IMPACTS WITH ANY STRONGER STORMS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... .THUNDERSTORMS... SOME SHOWERS AND ISOLATED THUNDERSTORMS WILL REMAIN POSSIBLE IN PARTS OF SOUTHEAST OKLAHOMA EARLY MONDAY...BUT SHOULD DISSIPATE THROUGH THE NOON HOUR. AFTER A BRIEF DRY PERIOD... RAIN CHANCES WILL RETURN TO PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS FOR THE LATER HALF OF THE WEEK INTO NEXT WEEKEND. WHILE A FEW STRONG STORMS MAY OCCUR...LOCALLY HEAVY RAINFALL APPEARS TO BE THE PRIMARY HAZARD AT THIS TIME. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. MAXWELL/AUSTIN
In the hours before
Special weather statement, Oct 6, 1:44 AM CDT, 1 hour 47 minutes before
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</html>Special weather statement, Oct 6, 2:44 AM CDT, 47 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
244 AM CDT MON OCT 6 2014
OKZ039>041-046-050-051-060830-
MARSHALL OK-LOVE OK-GARVIN OK-MURRAY OK-STEPHENS OK-CARTER OK-
244 AM CDT MON OCT 6 2014
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARSHALL...
NORTHEASTERN LOVE...WESTERN GARVIN...SOUTHWESTERN MURRAY...
NORTHEASTERN STEPHENS AND CARTER COUNTIES UNTIL 330 AM CDT...
AT 240 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHEAST
OF LONE GROVE...MOVING SOUTHEAST AT 30 MPH. ANOTHER STRONG STORM WAS
LOCATED 15 MILES NORTHWEST OF FOSTER.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
LAT...LON 3384 9717 3389 9718 3392 9721 3390 9725
3386 9726 3388 9730 3472 9767 3475 9767
3484 9748 3423 9693 3417 9694 3417 9688
3400 9673 3393 9690 3396 9692 3395 9698
3396 9698 3395 9700 3390 9698 3381 9721
TIME...MOT...LOC 0740Z 324DEG 24KT 3423 9722Local storm report, Oct 6, 3:06 AM CDT, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
306 AM CDT MON OCT 06 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 AM HAIL 1 WNW FOSTER 34.63N 97.50W
10/06/2014 E1.75 INCH GARVIN OK STORM CHASER
&&
EMLocal storm report, Oct 6, 3:08 AM CDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
308 AM CDT MON OCT 06 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0249 AM HAIL 2 W LONE GROVE 34.17N 97.30W
10/06/2014 E1.00 INCH CARTER OK PUBLIC
&&
EMSpecial weather statement, Oct 6, 3:23 AM CDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
323 AM CDT MON OCT 6 2014
OKZ028-040-060900-
MCCLAIN OK-GARVIN OK-
323 AM CDT MON OCT 6 2014
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MCCLAIN AND
NORTHWESTERN GARVIN COUNTIES UNTIL 400 AM CDT...
AT 321 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR CRINER...
MOVING SOUTHEAST AT 30 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
LAT...LON 3495 9767 3496 9767 3503 9748 3477 9725
3468 9758
TIME...MOT...LOC 0821Z 335DEG 25KT 3493 9755The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 10:15 PM CDT | Special Weather Statement | OUN | Payne | 30 min |
| Oct 5, 10:29 PM CDT | Special Weather Statement | OUN | Blaine | 31 min |
| Oct 5, 10:42 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Pottawatomie | 48 min |
| Oct 5, 10:42 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Caddo, Canadian, Grady | 48 min |
| Oct 5, 10:53 PM CDT | Special Weather Statement | OUN | Oklahoma | 37 min |
| Oct 5, 11:07 PM CDT | Severe Thunderstorm Warning | OUN | Canadian, Cleveland, Grady, McClain, Oklahoma | 27 min |
| Oct 5, 11:29 PM CDT | Severe Thunderstorm Warning | OUN | Caddo | 28 min |
| Oct 5, 11:53 PM CDT | Special Weather Statement | OUN | Cleveland | 22 min |
| Oct 6, 12:05 AM CDT | Special Weather Statement | OUN | Cleveland, Grady, McClain, Pottawatomie, Seminole | 25 min |
| Oct 6, 12:43 AM CDT | Special Weather Statement | OUN | Garvin, Hughes, Seminole | 32 min |
| Oct 6, 1:09 AM CDT | Special Weather Statement | OUN | Garvin, Hughes, Pontotoc | 36 min |
| Oct 6, 1:44 AM CDT | Special Weather Statement | OUN | Garvin | 31 min |
| Oct 6, 2:08 AM CDT | Special Weather Statement | OUN | Carter | 37 min |
| Oct 6, 2:44 AM CDT | Special Weather Statement | OUN | Carter, Love, Marshall | 46 min |
| Oct 6, 3:02 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Murray, Stephens | 43 min |
| Oct 6, 3:23 AM CDT | Special Weather Statement | OUN | McClain | 37 min |
| Oct 6, 3:39 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Jefferson, Love, Murray, Stephens | 51 min |
| Oct 6, 4:09 AM CDT | Special Weather Statement | OUN | Garvin | 36 min |
| Oct 6, 4:17 AM CDT | Special Weather Statement | OUN | Grady | 28 min |
| Oct 6, 4:24 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Love | 51 min |
| Oct 6, 4:37 AM CDT | Special Weather Statement | OUN | Garvin | 23 min |
| Oct 6, 4:38 AM CDT | Special Weather Statement | OUN | Grady | 37 min |
| Oct 6, 4:59 AM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, Stephens | 32 min |
| Oct 6, 5:32 AM CDT | Special Weather Statement | OUN | Carter | 43 min |
| Oct 6, 6:00 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Jefferson, Love | 20 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2014Every severe thunderstorm warning in 2014
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.