Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 113, NWS Tulsa, OK

May 8, 2002Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 8, 2002, 10:04 PM CDT for Pawnee County, Oklahoma. It was in force for 56 min. 1 report 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 8, 2002, 10:04 PM CDT (03:04 UTC)
Expired
May 8, 2002, 11:00 PM CDT
In force
56 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Pawnee County, OK

The radar

The Tulsa radar (KINX), 103 km from the middle of the area, began a volume at 03:03 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 8, 10:48 PM CDTHail 0.88Watchorn, 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 8, 9:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.1 hours before the alert went out and 137 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 090304
SVRTUL
OKC117-090400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1004 PM CDT WED MAY 8 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1100 PM CDT

* AT 1004 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 18
  MILES NORTHWEST OF PAWNEE...MOVING EAST AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...PAWNEE...
  BLACKBURN...SKEDEE AND RALSTON.

HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE 
EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS 
UNTIL THE STORM HAS PASSED.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

$$

MANNING

LAT...LON 3649 9704 3636 9704 3629 9692 3630 9645
          3644 9669 3654 9675

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, 10:26 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, 2:09 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee, Wagoner51 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.