Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 161, NWS Norman, OK

June 7, 2014Jackson County, Oklahoma; Hardeman County, Texas

NWS Norman, OK issued this severe thunderstorm warning at Jun 7, 2014, 11:15 PM CDT for Jackson County, Oklahoma; Hardeman County, Texas. 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 counties it named.

The facts

Issued: Jun 7, 2014, 11:15 PM CDT (04:15 UTC)
Expired: Jun 8, 2014, 12:00 AM CDT
In force: 45 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Jackson County, OK, Hardeman County, TX

The radar

The Altus AFB radar (KFDR), 56 km from the middle of the area, began a volume at 04:17 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
Jun 7, 8:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 4.3 hours before the alert went out and 212 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 11 J/kg
Mixed-layer CIN: -422 J/kg
Mixed-layer LCL: 1959 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

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 Jun 7, 10:15 PM CDT, 1 hour earlier.

Area forecast discussion, Jun 7, 10:15 PM CDT, 1 hour before

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Hazardous weather outlook, Jun 7, 9:10 PM CDT, 2 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
910 PM CDT SAT JUN 7 2014

OKZ004>048-050>052-TXZ083>090-081100-
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-
1155 AM CDT SAT JUN 7 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...THROUGH TONIGHT...

.THUNDERSTORMS...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF
SOUTHERN AND WESTERN OKLAHOMA AND WESTERN NORTH TEXAS TONIGHT.

LOCATION...
THE SLIGHT RISK AREA IS ALONG AND SOUTH OF A LINE FROM
CHEYENNE TO WEATHERFORD TO PURCELL TO ATOKA.

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE THROUGH 5 AM SUNDAY
MORNING.

IMPACTS...
DAMAGING WIND GUSTS 60 TO 70 MPH
LARGE HAIL UP TO THE SIZE OF TENNIS BALLS
HEAVY RAINFALL MAY RESULT IN SOME FLOODING

DISCUSSION...
SCATTERED STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE TO
DEVELOP NEAR AND NORTH OF A FRONTAL BOUNDARY FROM WESTERN NORTH
TEXAS INTO SOUTHERN OKLHOMA THIS EVENING. ADDITIONAL THUNDERSTORMS WILL ALSO
LIKELY MOVE SOUTHEASTWARD FROM THE HIGH PLAINS INTO OKLAHOMA AND
NORTH TEXAS LATER TONIGHT.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD
PREPARE FOR SEVERE WEATHER OPERATIONS OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
SEVERE THUNDERSTORMS...ALONG WITH HEAVY RAINFALL...WILL BE POSSIBLE
AGAIN SUNDAY AFTERNOON AND NIGHT...MAINLY ACROSS THE SOUTHERN
HALF OF OKLAHOMA AND WESTERN NORTH TEXAS. THUNDERSTORM CHANCES
WILL DECREASE AFTER MONDAY BUT CONTINUE THROUGH THE WORK WEEK.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

In the hours before

Local storm report, Jun 7, 10:14 PM CDT, 1 hour 1 minute before

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Local storm report, Jun 7, 10:17 PM CDT, 58 minutes before

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Local storm report, Jun 7, 10:28 PM CDT, 47 minutes before

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Local storm report, Jun 7, 10:32 PM CDT, 43 minutes before

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Special weather statement, Jun 7, 10:59 PM CDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1059 PM CDT SAT JUN 7 2014

OKZ031-042-080430-
SEMINOLE OK-PONTOTOC OK-
1059 PM CDT SAT JUN 7 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN SEMINOLE AND
NORTHEASTERN PONTOTOC COUNTIES UNTIL 1130 PM CDT...

AT 1056 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR BYNG...MOVING
NORTHEAST AT 20 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LAT...LON 3476 9670 3491 9683 3493 9680 3490 9680
      3490 9678 3495 9677 3508 9659 3496 9649
      3491 9649 3491 9646 3488 9643
TIME...MOT...LOC 0356Z 235DEG 16KT 3488 9670

Special weather statement, Jun 7, 11:02 PM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1102 PM CDT SAT JUN 7 2014

OKZ036-080430-
JACKSON OK-
1102 PM CDT SAT JUN 7 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JACKSON COUNTY UNTIL 1130
PM CDT...

AT 1101 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF
ELDORADO...MOVING NORTHEAST AT 20 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LAT...LON 3451 9967 3463 9967 3473 9949 3473 9944
      3474 9943 3448 9930 3439 9971 3442 9973
      3443 9977 3450 9984
TIME...MOT...LOC 0401Z 244DEG 17KT 3454 9964

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 7, 7:33 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Love	42 min
Jun 7, 7:48 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson	27 min
Jun 7, 8:15 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Cotton, Jefferson, Love	45 min
Jun 7, 8:31 PM CDT	Special Weather Statement	OUN	Stephens	29 min
Jun 7, 8:38 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray, Stephens	52 min
Jun 7, 8:47 PM CDT	Special Weather Statement	OUN	Kiowa	28 min
Jun 7, 8:58 PM CDT	Severe Thunderstorm Warning	OUN	Love	46 min
Jun 7, 9:17 PM CDT	Special Weather Statement	OUN	Beckham	28 min
Jun 7, 9:20 PM CDT	Special Weather Statement	OUN	Stephens	25 min
Jun 7, 9:24 PM CDT	Severe Thunderstorm Warning	OUN	Garvin	51 min
Jun 7, 9:29 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Murray	46 min
Jun 7, 9:33 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Grady, Stephens	31 min
Jun 7, 10:14 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain, Pontotoc, Pottawatomie	28 min
Jun 7, 10:15 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Johnston, Murray	45 min
Jun 7, 10:36 PM CDT	Areal Flood Advisory	OUN	Garvin	3 hr
Jun 7, 10:42 PM CDT	Severe Thunderstorm Warning	OUN	Harmon	48 min
Jun 7, 10:58 PM CDT	Severe Thunderstorm Warning	OUN	Johnston	35 min
Jun 7, 10:59 PM CDT	Special Weather Statement	OUN	Pontotoc	31 min
Jun 7, 11:02 PM CDT	Special Weather Statement	OUN	Jackson	28 min
Jun 7, 11:30 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	45 min
Jun 7, 11:31 PM CDT	Special Weather Statement	OUN	Greer, Harmon	29 min
Jun 7, 11:55 PM CDT	Areal Flood Advisory	OUN	Greer, Harmon, Jackson	3 hr
Jun 7, 11:56 PM CDT	Special Weather Statement	OUN	Pottawatomie	34 min
Jun 7, 11:59 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	46 min
Jun 8, 12:08 AM CDT	Special Weather Statement	OUN	Grady	37 min
Jun 8, 12:16 AM CDT	Special Weather Statement	OUN	Atoka, Coal	29 min
Jun 8, 12:18 AM CDT	Special Weather Statement	OUN	Garvin	27 min
Jun 8, 12:41 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	49 min
Jun 8, 12:41 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jackson, Kiowa, Tillman	49 min
Jun 8, 1:01 AM CDT	Flash Flood Warning	OUN	Harmon, Jackson, Kiowa, Tillman	3 hr
Jun 8, 1:25 AM CDT	Areal Flood Advisory	OUN	Caddo, Comanche, Grady	3 hr
Jun 8, 1:30 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Kiowa, Tillman	45 min
Jun 8, 1:33 AM CDT	Special Weather Statement	OUN	Cleveland	27 min
Jun 8, 1:37 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland	23 min
Jun 8, 2:14 AM CDT	Special Weather Statement	OUN	Comanche, Cotton	31 min
Jun 8, 2:28 AM CDT	Areal Flood Advisory	OUN	Cleveland, Oklahoma	2 hr
Jun 8, 2:42 AM CDT	Special Weather Statement	OUN	Seminole	33 min
Jun 8, 3:29 AM CDT	Special Weather Statement	OUN	Cotton, Jefferson, Stephens	46 min
Jun 8, 3:38 AM CDT	Flash Flood Warning	OUN	Grady	2 hr
Jun 8, 4:01 AM CDT	Areal Flood Advisory	OUN	Cleveland, Garvin, Hughes, McClain, Pontotoc, Pottawatomie and 1 more	3 hr
Jun 8, 4:16 AM CDT	Special Weather Statement	OUN	Carter, Jefferson, Love, Stephens	44 min
Jun 8, 4:40 AM CDT	Areal Flood Advisory	OUN	Carter, Garvin, Johnston, Murray, Pontotoc	110 min
Jun 8, 5:22 AM CDT	Areal Flood Advisory	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc	3 hr
Jun 8, 5:49 AM CDT	Special Weather Statement	OUN	Johnston, Marshall	41 min
Jun 8, 2:04 AM CDT	Special Weather Statement	OUN	Baylor, Hardeman, Knox, Wilbarger	26 min
Jun 8, 2:43 AM CDT	Special Weather Statement	OUN	Archer, Baylor, Clay, Wichita	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2014 Severe Thunderstorm Warnings in Texas, 2014 Every 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.