Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 289, NWS Tulsa, OK

December 30, 2002McIntosh County, Pittsburg County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Dec 30, 2002, 12:08 PM CST for McIntosh County, Pittsburg County, Oklahoma. It was in force for 37 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Dec 30, 2002, 12:08 PM CST (18:08 UTC)
Expired
Dec 30, 2002, 12:45 PM CST
In force
37 min
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

Counties McIntosh County, OK, Pittsburg County, OK

The radar

The Tulsa radar (KINX), 101 km from the middle of the area, began a volume at 18:11 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
Dec 30, 12:23 PM CSTHail 0.75Vivian, OK
Dec 30, 12:35 PM CSTHail 0.75Eufaula, OK
Dec 30, 12:52 PM CSTHail 0.75Checotah, 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 6.1 hours before the alert went out and 151 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 12:00Z on 2002-12-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2002-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1476 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

792 
WUUS54 KTSA 301808
SVRTUL
OKC091-121-301845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1207 PM CST MON DEC 30 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA
  NORTHEASTERN PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1245 PM CST

* AT 1207 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 2   
MILES SOUTH OF RAIFORD...MOVING NORTHEAST AT 30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...EUFAULA...
  HANNA...RAIFORD...VIVIAN...STIDHAM AND INDIANOLA.

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


LAT...LON 3530 9594 3511 9593 3522 9545 3548 9544

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 Dec 30, 11:30 AM CST, 38 minutes earlier.

Area forecast discussion, Dec 30, 11:30 AM CST, 38 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
1130 AM CST MON DEC 30 2002

BACK TO SPRINGTIME. HAVE ISSUED UPDATE FOR SEVERE TSTM WATCH
808...ALONG WITH UPDATE FOR HIGHER POPS SOUTH OF I-40. SHOWERS AND
THUNDERSTORMS INCREASING ACROSS SOUTHEAST OKLAHOMA THIS MORNING IN
RESPONSE TO UPPER LOW MOVING ACROSS WEST TEXAS. VERY SPRINGLIKE
AIRMASS IN PLACE OVER MUCH OF THE AREA WITH DEW POINTS IN LOW 60S.
MOST OF THE CONVECTION HAS BEEN ELEVATED IN NATURE THUS FAR...EVEN
SO A FEW REPORTS OF SEVERE HAIL OVER SC OK. NOT TOO CONCERNED ABOUT
ANY STORMS BECOMING ROOTED IN BL AS FAR NORTH AS SE OK SO MAINLY
LOOKING AT THREAT OF LARGE HAIL. WILL UPDATE HWO MOMENTARILY.

MEANWHILE...COLD FRONT BEGINNING TO PUSH INTO NW SECTIONS OF CWA
WITH WINDS SHIFTING TO THE WEST. CHANCE OF PRECIP MINIMAL ONCE FRONT
PUSHES THROUGH. WILL LEAVE IN CHANCE POPS ACROSS MOST OF NE OKLAHOMA
FOR NOW...BUT MAY NEED TO ADD SOME HIGHER POPS EAST OF TULSA BEFORE
ALL IS SAID AND DONE.

IN ADDITION...MADE A FEW MINOR CHANGES TO TEMP AND WIND GRIDS BASED
ON CURRENT TRENDS.

.TSA...
AR...NONE.
OK...NONE.

SULLIVAN
Hazardous weather outlook, Dec 30, 11:45 AM CST, 23 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-311200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1145 AM CST MON DEC 30 2002

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

.DAY ONE...

SEVERE WEATHER OUTLOOK
AREA 1...SOUTH OF A LINE FROM OKMULGEE OKLAHOMA TO FORT SMITH ARKANSAS

PROBABILITY OF THUNDERSTORMS...100

IF THUNDERSTORMS DEVELOP...
     PROBABILITY OF SEVERE STORMS...40
     TIME OF INITIAL EVENT...12:30 PM
     PROBABILITY OF A TORNADO / F2 OR GREATER TORNADO...5/0
     PROBABILITY OF GOLFBALL HAIL OR LARGER...20
     PROBABILITY OF 73 MPH WIND OR GREATER...20

GIVEN PROBABILITIES REPRESENT THE POTENTIAL FOR AN OCCURRENCE
ANYWHERE IN THE DEFINED AREA.

.DISCUSSION...
SHOWERS AND THUNDERSTORMS WILL BE ON THE INCREASE SOUTH OF
INTERSTATE 40 OVER THE NEXT FEW HOURS AS AN UPPER LOW CONTINUES TO
MOVE ACROSS WEST TEXAS. SURFACE DEW POINTS IN THE LOWER 60S ARE
COMMON ACROSS MUCH OF SOUTHEAST OKLAHOMA. MOST OF THE STORMS ARE
EXPECTED TO REMAIN ELEVATED IN NATURE...HOWEVER STEEP MID LEVEL
LAPSE RATES OF AROUND 8 C/KM WILL SUPPORT THE THREAT OF LARGE HAIL
WITH THESE ELEVATED STORMS. ANY STORMS THAT BECOME ROOTED IN THE
BOUNDARY LAYER WILL ALSO BE CAPABLE OF PRODUCING DAMAGING WINDS.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE REQUIRED ACROSS SOUTHEAST OKLAHOMA THIS
AFTERNOON.

.DAYS TWO THROUGH SEVEN...
NO HAZARDOUS WEATHER IS EXPECTED.

COOLER WEATHER IS EXPECTED FOR THE REMAINDER OF THE WEEK AND INTO
THE WEEKEND AS THE UPPER FLOW BECOMES NORTHWESTERLY.

RELATED GRAPHICAL INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA

In the hours before

Special weather statement, Dec 30, 9:38 AM CST, 2 hours 30 minutes before
OKZ076-301615-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
938 AM CST MON DEC 30 2002

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR LE FLORE COUNTY UNTIL 1015
   AM CST...

AT 936 AM CST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES
NORTHEAST OF BIG CEDAR...MOVING NORTHEAST AT 40 MPH. THIS STORM WILL
BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE
COMMUNITIES OF BIG CEDAR AND MUSE WILL BE AFFECTED BY THIS STORM
THROUGH 1015 AM CST. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN
CASE WARNINGS ARE ISSUED.
Special weather statement, Dec 30, 11:55 AM CST, 13 minutes before
ARZ019-029-OKZ072-301830-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1155 AM CST MON DEC 30 2002

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR CRAWFORD...SEBASTIAN AND
   SEQUOYAH COUNTIES UNTIL 1230 PM CST...

AT 1155 AM CST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7
MILES SOUTH OF MULDROW...MOVING NORTHEAST AT 30 MPH. THIS STORM WILL
BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. THE
COMMUNITIES OF MULDROW...ROLAND...MOFFETT...FORT SMITH...BARLING...
VAN BUREN...CEDARVILLE...KIBLER...SHIBLEY...FURRY AND FIGURE FIVE
WILL BE AFFECTED BY THIS STORM THROUGH 1230 PM CST. RESIDENTS IN
THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 30, 12:47 PM CSTSevere Thunderstorm WarningTSAMcIntosh, Muskogee43 min
Dec 30, 1:30 PM CSTSevere Thunderstorm WarningTSAAdair, Cherokee, Sequoyah45 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.