Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 240, NWS Tulsa, OK

May 14, 2009Latimer County, Pittsburg County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 2009, 12:13 AM CDT for Latimer County, Pittsburg County, Pushmataha County, Oklahoma. It was in force for 62 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: May 14, 2009, 12:13 AM CDT (05:13 UTC)
Expired: May 14, 2009, 1:15 AM CDT
In force: 62 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 117 km from the middle of the area, began a volume at 05:13 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
May 13, 9:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.2 hours before the alert went out and 185 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: 3795 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 1317 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 17.1

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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 14, 12:02 AM CDT, 11 minutes earlier.

Area forecast discussion, May 14, 12:02 AM CDT, 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1202 AM CDT THU MAY 14 2009

...AVIATION...

.DISCUSSION...
A LINE OF SEVERE THUNDERSTORMS WILL WILL CONTINUE TO MOVE ACROSS
THE REGION... AFFECTING KMLC... AND ARKANSAS TAF SITES OVER THE
NEXT FEW HOURS. THIS WILL PRODUCE INTERMITTENT IFR CONDITIONS AT
THOSE SITES. VFR CONDITIONS UNDER OVERCAST SKIES WILL PREVAIL AT KRVS
AND KTUL... AND WILL RETURN TO THE OTHER TAF SITES AFTER THE LINE
OF STORMS PASSES.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 AM THURSDAY FOR OKZ049-OKZ053-OKZ054-
     OKZ055-OKZ056-OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-
     OKZ063-OKZ064-OKZ065-OKZ066-OKZ067-OKZ068-OKZ069-OKZ070-
     OKZ071-OKZ072-OKZ073-OKZ074-OKZ075-OKZ076.

AR...FLASH FLOOD WATCH UNTIL 7 AM THURSDAY FOR ARZ001-ARZ002-ARZ010-
     ARZ011-ARZ019-ARZ020-ARZ029.

&&

SHORT TERM...99
LONG TERM....99
AVIATION...06

Hazardous weather outlook, May 13, 5:11 PM CDT, 7 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
511 PM CDT WED MAY 13 2009

ARZ001-002-010-011-019-020-029-OKZ049-053>076-141000-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
511 PM CDT WED MAY 13 2009

...SEVERE WEATHER EXPECTED TONIGHT WITH AREAS OF HEAVY RAIN...

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...REST OF TONIGHT.
TORNADO RISK...ELEVATED.
AREA...NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET...EARLY EVENING.

AREA AT GREATEST RISK...NORTHEAST OKLAHOMA.

SEVERE THUNDERSTORM.
RISK...SIGNIFICANT.
AREA...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET...EARLY EVENING.

AREA AT GREATEST RISK...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.

FLASH FLOOD.
RISK...ELEVATED.
AREA....
ONSET...EARLY EVENING.

AREA AT GREATEST RISK...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.

HEAVY RAIN.
RISK...SIGNIFICANT.
AREA...ALL EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET...EARLY EVENING.

AREA AT GREATEST RISK...ALL EASTERN OKLAHOMA AND NORTHWEST
ARKANSAS.

SIGNIFICANT WINDS.
RISK...LIMITED.
AREA...NORTHEAST OKLAHOMA.
ONSET...ONGOING.

DISCUSSION...
CONDITIONS CONTINUE TO FAVOR THE DEVELOPMENT OF SEVERE WEATHER
ACROSS THE REGION ALONG AND AHEAD OF AN ADVANCING COLD FRONT EARLY
THIS EVENING. A CAPPING INVERSION HAS ALLOWED STRONG INSTABILITY
TO BUILD SOUTH OF THE FRONTAL BOUNDARY. HOWEVER... THE CAP HAS
SUFFICIENTLY WEAKENED AS EXPECTED... ALLOWING STORMS TO DEVELOP
ALONG THE FRONT.

THE INITIAL STAGES OF CONVECTION WILL FAVOR SUPERCELLS WITH
TORNADIC POTENTIAL AND VERY LARGE HAIL. THE STRONGEST WIND FIELDS
WILL REMAIN WELL NORTH OF THE REGION WHICH IS LIKELY TO LEAD TO
STORMS ORGANIZING ALONG THE FRONTAL BOUNDARY AND PUSHING SOUTHWARD
AS THEIR COMBINED OUTFLOW BOUNDARY STRENGTHENS. THIS SCENARIO WILL
LIMIT THE TORNADIC POTENTIAL WITH TIME. ALTHOUGH THE STRONG
INSTABILITY WILL MAINTAIN THE POTENTIAL FOR SIGNIFICANT HAIL AND
OUTFLOW WINDS THROUGHOUT THE EVENING AND INTO THE OVERNIGHT HOURS.

THE FRONTAL BOUNDARY RESPONSIBLE FOR THE STORM INITIATION WILL BE
SLOW MOVING AND EXPECTED TO STALL ACROSS THE SOUTHERN PORTION OF
THE FORECAST AREA OVERNIGHT. THIS WILL PROVIDE A ZONE FOR REPEATED
STORM DEVELOPMENT ACROSS THE REGION... WITH EXCESSIVE RAINFALL
ACROSS THE FORECAST AREA. A FLASH FLOOD WATCH IS IN EFFECT FOR THE
FORECAST AREA TONIGHT... WITH A FLOOD WATCH FOR SEVERAL RIVERS
ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL BE NEEDED.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...THUNDERSTORM POTENTIAL.
FRIDAY...THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
SATURDAY...THUNDERSTORM POTENTIAL.
SUNDAY...NO HAZARDS.
MONDAY...NO HAZARDS.
TUESDAY...NO HAZARDS.

EXTENDED DISCUSSION...
THUNDERSTORM CHANCES WILL CONTINUE INTO THE WEEKEND... WITH
YET ANOTHER ROUND OF HEAVY RAIN POSSIBLE LATE FRIDAY INTO
SATURDAY.  SHOULD THIS HEAVY RAIN DEVELOP... THEN BOTH
FLASH FLOODING AND RIVER FLOODING WILL BE A CONCERN OVER
THE WEEKEND.  THE WEATHER PATTERN LOOKS TO CHANGE BY EARLY
NEXT WEEK WITH POTENTIAL FOR A DRY PERIOD ACROSS THE AREA.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.

In the hours before

Local storm report, May 13, 10:52 PM CDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1052 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1050 PM     TSTM WND GST     TAHLEQUAH               35.92N 94.97W
05/13/2009  E60 MPH          CHEROKEE           OK   AMATEUR RADIO

            DIME SIZED HAIL REPORTED AS WELL.

&&

PBS

Local storm report, May 13, 11:04 PM CDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1104 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1103 PM     HAIL             OKMULGEE                35.62N 95.96W
05/13/2009  E0.75 INCH       OKMULGEE           OK   AMATEUR RADIO

&&

PBS

Local storm report, May 13, 11:13 PM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1113 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1108 PM     HAIL             TULSA                   36.13N 95.92W
05/13/2009  E0.75 INCH       TULSA              OK   AMATEUR RADIO

            MINGO AND 91ST

&&

PBS

Local storm report, May 13, 11:36 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1136 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1127 PM     TSTM WND DMG     WESTVILLE               35.99N 94.57W
05/13/2009                   ADAIR              OK   EMERGENCY MNGR

            SOME ROOF DAMAGE TO BUILDINGS

&&

SFP

Local storm report, May 13, 11:45 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1145 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 PM     TSTM WND GST     10 NE EUFAULA           35.39N 95.46W
05/13/2009  E70 MPH          MCINTOSH           OK   EMERGENCY MNGR

            SPOTTER REPORTED 70 MPH WIND AT TIGER MOUNTAIN

&&

BAS

Local storm report, May 13, 11:58 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1158 PM CDT WED MAY 13 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1156 PM     NON-TSTM WND GST EUFAULA                 35.29N 95.58W
05/13/2009  E70 MPH          MCINTOSH           OK   LAW ENFORCEMENT

            MULTIPLE TREES DOWN

&&

PBS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 7:22 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	53 min
May 13, 8:03 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	57 min
May 13, 8:11 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Washington	64 min
May 13, 8:16 PM CDT	Special Weather Statement	TSA	Craig, Nowata	44 min
May 13, 8:34 PM CDT	Tornado Warning	TSA	Nowata, Osage, Washington	41 min
May 13, 8:54 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Osage, Rogers, Tulsa and 1 more	66 min
May 13, 9:09 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	81 min
May 13, 9:10 PM CDT	River Flood Watch	TSA	Muskogee	3 hr
May 13, 9:38 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Rogers, Tulsa, Wagoner	52 min
May 13, 9:45 PM CDT	Tornado Warning	TSA	Craig, Ottawa	45 min
May 13, 9:49 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	44 min
May 13, 9:50 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Muskogee, Okmulgee, Osage, Tulsa, Wagoner	55 min
May 13, 10:00 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Rogers, Tulsa	30 min
May 13, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	24 min
May 13, 10:21 PM CDT	Areal Flood Advisory	TSA	Mayes, Rogers, Tulsa, Wagoner	54 min
May 13, 10:22 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	53 min
May 13, 10:29 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Rogers and 1 more	61 min
May 13, 10:38 PM CDT	Areal Flood Advisory	TSA	Osage, Tulsa	112 min
May 13, 10:43 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Rogers, Tulsa, Wagoner	49 min
May 13, 10:46 PM CDT	Flash Flood Warning	TSA	Osage, Rogers, Tulsa, Wagoner	2 hr
May 13, 10:47 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	58 min
May 13, 11:08 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, LeFlore, Muskogee, Sequoyah	67 min
May 13, 11:13 PM CDT	Areal Flood Advisory	TSA	Cherokee, Creek, Tulsa, Wagoner	2 hr
May 13, 11:31 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, LeFlore, McIntosh, Muskogee, Okmulgee and 2 more	59 min
May 14, 12:04 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	56 min
May 14, 12:09 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	81 min
May 14, 1:04 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	71 min
May 14, 1:28 AM CDT	Areal Flood Advisory	TSA	LeFlore, Sequoyah	92 min
May 14, 1:55 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw, LeFlore, Pittsburg, Pushmataha	75 min
May 14, 8:01 AM CDT	Special Weather Statement	TSA	McIntosh	29 min
May 13, 9:02 PM CDT	River Flood Warning	TSA	Crawford, Sebastian	4 days
May 13, 10:25 PM CDT	Special Weather Statement	TSA	Benton	35 min
May 13, 10:37 PM CDT	Special Weather Statement	TSA	Madison	23 min
May 13, 11:20 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	55 min
May 13, 11:52 PM CDT	Areal Flood Advisory	TSA	Benton, Carroll	113 min
May 13, 11:57 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison, Washington	63 min
May 14, 1:00 AM CDT	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2009 Every severe thunderstorm warning in 2009

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.