Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 129, NWS Tulsa, OK

May 9, 20024 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 2002, 2:09 AM CDT for 4 counties in Oklahoma. It was in force for 51 min. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 9, 2002, 2:09 AM CDT (07:09 UTC)
Expired
May 9, 2002, 3:00 AM CDT
In force
51 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 59 km from the middle of the area, began a volume at 07:08 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.

What was reported inside it

TimeReportWhereRemark
May 9, 2:30 AM CDTHail 0.75Morris, OK
May 9, 2:30 AM CDTHail 0.75Oktaha, OK
May 9, 2:35 AM CDTHail 1Checotah, OK
May 9, 2:35 AM CDTThunderstorm Wind 57 EChecotah, OK
May 9, 2:47 AM CDTHail 1Checotah, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 9, 1:15 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.2 hours before the alert went out and 167 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2002-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3758 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2002-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
3758 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
5.8
Supercell composite
21.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KTSA 090709
SVRTUL
OKC091-101-111-145-090800-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
208 AM CDT THU MAY 9 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA
  EASTERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA
  WAGONER COUNTY IN NORTHEAST OKLAHOMA
  MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 300 AM CDT

* AT 208 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM 7 MILES EAST OF COWETA TO 6 MILES SOUTH OF
  HASKELL TO 3 MILES SOUTHEAST OF HENRYETTA...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...OKMULGEE...
  HENRYETTA...DEWAR...HOFFMAN...GRAYSON...SCHULTER...MORRIS...BALD
  HILL...WAGONER...TULLAHASSEE...PORTER...OKAY...STONEBLUFF...
  COWETA...CHECOTAH...STIDHAM...RENTIESVILLE...MUSKOGEE...COUNCIL
  HILL...PORUM...WARNER...OKTAHA...KEEFETON...BOYNTON...BRAGGS...
  TAFT...FORT GIBSON...HASKELL AND WEBBERS FALLS.

HAIL TO THE SIZE OF HALF DOLLARS AND WIND GUSTS TO 65 MPH CAN BE 
EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS 
UNTIL THE STORM HAS PASSED. THESE STORMS HAVE A HISTORY OF LARGE 
HAIL.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

$$

MANNING

LAT...LON 3601 9564 3575 9588 3559 9603 3530 9603
          3536 9514 3574 9515 3582 9528 3601 9529

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 9:33 PM CDTSevere Thunderstorm WarningTSAOsage57 min
May 8, 10:04 PM CDTSevere Thunderstorm WarningTSAPawnee56 min
May 8, 10:26 PM CDTSevere Thunderstorm WarningTSAOsage64 min
May 8, 11:00 PM CDTSevere Thunderstorm WarningTSAPawnee60 min
May 8, 11:15 PM CDTFlash Flood WarningTSAOsage4 hr
May 8, 11:23 PM CDTSevere Thunderstorm WarningTSAWashington52 min
May 8, 11:27 PM CDTSevere Thunderstorm WarningTSAOsage93 min
May 8, 11:40 PM CDTSevere Thunderstorm WarningTSAAdair, Delaware65 min
May 8, 11:50 PM CDTSevere Thunderstorm WarningTSARogers55 min
May 9, 12:00 AM CDTSevere Thunderstorm WarningTSANowata60 min
May 9, 12:14 AM CDTSevere Thunderstorm WarningTSAWashington46 min
May 9, 12:20 AM CDTSevere Thunderstorm WarningTSACraig55 min
May 9, 12:29 AM CDTSevere Thunderstorm WarningTSATulsa61 min
May 9, 12:32 AM CDTSevere Thunderstorm WarningTSAOsage43 min
May 9, 12:44 AM CDTSevere Thunderstorm WarningTSAAdair, Creek61 min
May 9, 1:06 AM CDTSevere Thunderstorm WarningTSARogers54 min
May 9, 1:12 AM CDTSevere Thunderstorm WarningTSAOkfuskee63 min
May 9, 1:30 AM CDTSevere Thunderstorm WarningTSAOkmulgee, Tulsa, Wagoner45 min
May 9, 2:49 AM CDTTornado WarningTSAMuskogee41 min
May 9, 3:03 AM CDTTornado WarningTSASequoyah57 min
May 9, 3:05 AM CDTSevere Thunderstorm WarningTSAHaskell40 min
May 9, 3:23 AM CDTSevere Thunderstorm WarningTSALeFlore67 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2002Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.