Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 110, NWS Norman, OK

June 1, 2014Harper County, Woods County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 1, 2014, 9:28 PM CDT for Harper County, Woods County, Oklahoma. It was in force for 47 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 1, 2014, 9:28 PM CDT (02:28 UTC)
Expired: Jun 1, 2014, 10:15 PM CDT
In force: 47 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.5 in
Wind: 70.0 mph

Counties Harper County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 102 km from the middle of the area, began a volume at 02:31 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 1, 9:06 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 2.5 hours before the alert went out and 124 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: 1280 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 2144 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 307 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.2

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 1, 7:22 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Jun 1, 7:22 PM CDT, 2 hours 6 minutes before

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Hazardous weather outlook, Jun 1, 11:30 AM CDT, 9 hours 58 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1130 AM CDT SUN JUN 1 2014

OKZ004>048-050>052-TXZ083>090-021100-
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-
1130 AM CDT SUN JUN 1 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORMS...
THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS WESTERN KANSAS
THIS AFTERNOON WITH A FEW STORMS POSSIBLE IN THE OKLAHOMA
AND TEXAS PANHANLDES.  STORMS ARE EXPECTED TO ORGANIZE IN
WESTERN KANSAS AND MOVE EAST AND SOUTHEAST.  STORMS MAY ENTER
NORTHERN OKLAHOMA BY EARLY EVENING.  LOCATIONS ALONG AND NORTHWEST
OF A CHEYENNE TO ENID AND PONCA CITY LINE HAVE THE BEST CHANCE
OF BEING IMPACTED BY SEVERE STORMS.

THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING:

GOLF BALL SIZED HAIL...
WINDS 60 TO 70 MPH...
AND LOCALLY HEAVY RAINFALL.

THE MOST LIKELY TIME FOR SEVERE WEATHER WILL BE FROM:

7 PM TO MIDNIGHT...

THE THREAT OF SEVERE STORMS WILL DIMINISH THROUGH
MIDNIGHT... BUT THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL
CONTINUE OVERNIGHT INTO EARLY MONDAY MORNING...ESPECIALLY ACROSS
NORTH CENTRAL OKLAHOMA.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORMS...
THUNDERSTORMS WILL BE POSSIBLE ACROSS PARTS OF OKLAHOMA AND
WESTERN NORTH TEXAS LATE THIS WEEK AS AN UPPER LEVEL SYSTEM AND
COLD FRONT MOVE ACROSS THE REGION.

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

KURTZ/BT

In the hours before

Special weather statement, Jun 1, 7:42 PM CDT, 1 hour 46 minutes before

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Special weather statement, Jun 1, 9:23 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
923 PM CDT SUN JUN 1 2014

OKZ004-005-020300-
HARPER OK-WOODS OK-
923 PM CDT SUN JUN 1 2014

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HARPER AND NORTHERN
WOODS COUNTIES UNTIL 1000 PM CDT...

AT 919 PM CDT...SEVERE THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
7 MILES WEST OF AETNA TO 6 MILES SOUTHEAST OF ACRES...MOVING EAST AT
45 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
POTENTIALLY SEVERE WINDS GUSTING OVER 55 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE SITUATION CLOSELY. BE READY TO ACT QUICKLY IF A WARNING
IS ISSUED OR IF STORMS THREATEN YOU.

&&

LAT...LON 3684 9855 3678 9920 3679 9926 3680 9929
      3678 9929 3677 9936 3699 9976 3700 9859
TIME...MOT...LOC 0219Z 286DEG 39KT 3705 9911 3706 9978

WR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 7:42 PM CDT	Special Weather Statement	OUN	Ellis	33 min
Jun 1, 9:23 PM CDT	Special Weather Statement	OUN	Woods	37 min
Jun 1, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	46 min
Jun 1, 10:12 PM CDT	Severe Thunderstorm Warning	OUN	Woods, Woodward	48 min
Jun 1, 10:25 PM CDT	Special Weather Statement	OUN	Grant	35 min
Jun 1, 10:39 PM CDT	Severe Thunderstorm Warning	OUN	Grant	36 min
Jun 1, 10:59 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	46 min
Jun 1, 11:26 PM CDT	Special Weather Statement	OUN	Kay	34 min
Jun 1, 11:43 PM CDT	Special Weather Statement	OUN	Garfield	32 min
Jun 1, 11:53 PM CDT	Special Weather Statement	OUN	Alfalfa	37 min
Jun 2, 12:33 AM CDT	Special Weather Statement	OUN	Noble	27 min
Jun 2, 12:49 AM CDT	Special Weather Statement	OUN	Alfalfa	26 min
Jun 2, 1:03 AM CDT	Special Weather Statement	OUN	Garfield	27 min
Jun 2, 1:21 AM CDT	Areal Flood Advisory	OUN	Alfalfa, Garfield, Grant, Major, Woods	3 hr
Jun 2, 1:50 AM CDT	Special Weather Statement	OUN	Payne	25 min
Jun 2, 2:12 AM CDT	Special Weather Statement	OUN	Payne	33 min
Jun 2, 2:20 AM CDT	Severe Thunderstorm Warning	OUN	Payne	40 min
Jun 2, 2:51 AM CDT	Special Weather Statement	OUN	Lincoln	24 min
Jun 2, 3:12 AM CDT	Special Weather Statement	OUN	Logan	33 min
Jun 2, 3:52 AM CDT	Special Weather Statement	OUN	Lincoln, Oklahoma	23 min
Jun 2, 4:01 AM CDT	Areal Flood Advisory	OUN	Lincoln, Logan, Noble, Payne	3 hr
Jun 2, 4:06 AM CDT	Special Weather Statement	OUN	Payne	24 min
Jun 2, 4:24 AM CDT	Special Weather Statement	OUN	Payne	21 min
Jun 2, 4:34 AM CDT	Special Weather Statement	OUN	Oklahoma	26 min
Jun 2, 4:38 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln	37 min
Jun 2, 4:51 AM CDT	Special Weather Statement	OUN	Cleveland	24 min
Jun 2, 5:15 AM CDT	Special Weather Statement	OUN	Pottawatomie, Seminole	30 min
Jun 2, 5:42 AM CDT	Special Weather Statement	OUN	Seminole	33 min
Jun 2, 7:55 AM CDT	Special Weather Statement	OUN	Pottawatomie, Seminole	50 min
Jun 2, 6:54 PM CDT	Special Weather Statement	OUN	Grant	51 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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.