Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 173, NWS Tulsa, OK

May 7, 1994Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 7, 1994, 6:49 AM CDT for Okfuskee County, Okmulgee County, Oklahoma. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
May 7, 1994, 6:49 AM CDT (11:49 UTC)
Expired
May 7, 1994, 7:30 AM CDT
In force
41 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 11:53 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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 11.8 hours before the alert went out and 120 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 1994-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1390 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 1994-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 115 square meters per square second.19395878Sfc1 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
1390 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
1160 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
115 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.3
Supercell composite
5.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 7, 4:32 AM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, May 7, 4:32 AM CDT, 2 hours 17 minutes before
AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
430 AM CDT SAT MAY 7 1994

AT 0830 THE CDFNT XTNDD FM NR MIAMI TO NR BRISTOW...WITH AN APRNT
TSTM BNDRY ACRS THE MID PART OF THE FA FM NR OKEMAH TO EUFAULA.
EARLIER SUPERCELLS DIED AS THEY MOVD INTO THE STRGR CAP OVR SE OK.
CONVCTN HAS BN INCRSNG IN NE OK JUST N OF THE FNT WHERE FNTL LIFT
AND UVM ASSOCD WITH THE RRQ OF AN H3 WIND MAX AND DIFFLNT FLOW
ALOFT WERE PHASING.

WL GO WITH SCT SHWRS AND TSTMS FOR TODAY ACRS THE FA...WITH THE
ACTVTY ENDING FM THE NW DURING THE DAY AS THE FNT PUSHES SE AND OUT
OF THE FA LATE TODAY.  A FEW SVR STRMS PSBL THIS MRNG IN NE OK AND
AGN IN SE OK THIS AFTN DURING THE USUAL DIURNAL TIMES FOR PEAK
ACTVTY.

THE FNT WL STALL ACRS E TX AND LA LATE TNGT AND MAY SHIFT A LTL N
SUN AND SUN NITE AS THE SWRN U.S. SYS APCHS.  WAA PRECIP SHUD BE ON
THE INCRS SUN NITE AND MONDAY AS THE SFC FNT RMNS NR THE SRN PART
OF THE FA AND THE UPR SYS TO THE SW DRAWS NR.

FYI FOR VORTEX...ARCHIVES II...III AND IV WERE UP DURNG LAST NITES
EVENTS.  THE TVS TRIPPED 3 TIMES.

TUL 074/048 072/057 067 40-4
MLC 074/052 073/058 068 40-4
BVO 074/046 072/055 XXX 30-4
IDB 079/053 075/057 XXX 4-14

/8

.TUL...NONE.

In the hours before

Special weather statement, May 7, 2:58 AM CDT, 3 hours 51 minutes before
OKC061-077-091-101-107-111-121-070900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
255 AM CDT SAT MAY 7 1994

...TORNADO WATCH 195 HAS BEEN CANCELLED...

THE TORNADO WATCH THAT WAS IN EFFECT FOR PARTS OF EAST CENTRAL AND
SOUTHEAST OKLAHOMA UNTIL 400 AM HAS BEEN CANCELLED. ISOLATED
THUNDERSTORMS IN SOUTHEAST OKLAHOMA HAVE BEEN WEAKENING. THE
ATMOSPHERE HAS BECOME LESS FAVORABLE FOR TORNADIC AND/OR
SEVERE THUNDERSTORMS TO DEVELOP. THUS THE WATCH HAS BEEN CANCELLED.
Special weather statement, May 7, 3:45 AM CDT, 3 hours 4 minutes before
OKZ054-059-060-070945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
345 AM CDT SAT MAY 7 1994

...A STRONG THUNDERSTORM WAS MOVING INTO WESTERN PAWNEE COUNTY...

AT 340AM...WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN AND POSSIBLY SOME HAIL ABOUT 10 MILES NORTHWEST OF THE CITY OF
PAWNEE. THE STORM WAS MOVING EAST SOUTHEAST AT 25 MPH AND WILL MOVE INTO
WESTERN PAWNEE COUNTY BY 4AM.

OTHER THUNDERSTORM WERE NORTH OF A LINE FROM NOWATA TO STILLWATER.

LISTEN FOR FURTHER UPDATES FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, May 7, 3:46 AM CDT, 3 hours 3 minutes before
OKZ054-059-060-070945-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
345 AM CDT SAT MAY 7 1994

...A STRONG THUNDERSTORM WAS MOVING INTO WESTERN PAWNEE COUNTY...

AT 340AM...WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN AND POSSIBLY SOME HAIL ABOUT 10 MILES NORTHWEST OF THE CITY OF
PAWNEE. THE STORM WAS MOVING EAST SOUTHEAST AT 25 MPH AND WILL MOVE INTO
WESTERN PAWNEE COUNTY BY 4AM.

OTHER THUNDERSTORM WERE N.ORTH OF A LINE FROM NOWATA TO STILLWATER.

LISTEN FOR FURTHER UPDATES FROM THE NATIONAL WEATHER SERVICE.
Local storm report, May 7, 5:55 AM CDT, 54 minutes before
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Local storm report, May 7, 5:56 AM CDT, 53 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
556 AM CDT SAT MAY 07 1994

TIME(CDT)    COUNTY       EVENT

520 AM       WASHINGTON   DIME SIZE HAIL AND WINDS TO 50 MPH
                          AT OCHELETA.
Local storm report, May 7, 5:58 AM CDT, 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
556 AM CDT SAT MAY 07 1994

TIME(CDT)    COUNTY       EVENT

520 AM       WASHINGTON   DIME SIZE HAIL AND WINDS TO 50 MPH
                          AT OCHELEbTA.

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 7:28 PM CDTSevere Thunderstorm WarningTSANowata47 min
May 6, 7:56 PM CDTTornado WarningTSAOsage, Pawnee49 min
May 6, 8:03 PM CDTTornado WarningTSANowata42 min
May 6, 8:12 PM CDTTornado WarningTSARogers63 min
May 6, 8:38 PM CDTTornado WarningTSAPawnee67 min
May 6, 8:41 PM CDTSevere Thunderstorm WarningTSAOsage49 min
May 6, 9:23 PM CDTTornado WarningTSACreek67 min
May 6, 9:50 PM CDTSevere Thunderstorm WarningTSAPawnee40 min
May 6, 10:18 PM CDTTornado WarningTSACreek57 min
May 6, 11:07 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee68 min
May 6, 11:15 PM CDTTornado WarningTSACreek, Okfuskee60 min
May 6, 11:23 PM CDTSevere Thunderstorm WarningTSAOttawa52 min
May 6, 11:47 PM CDTTornado WarningTSAOkfuskee43 min
May 7, 12:14 AM CDTTornado WarningTSAOkfuskee46 min
May 7, 12:37 AM CDTTornado WarningTSAMcIntosh, Pittsburg53 min
May 7, 1:29 AM CDTTornado WarningTSAPittsburg45 min
May 7, 4:03 AM CDTSevere Thunderstorm WarningTSAPawnee27 min
May 7, 4:44 AM CDTSevere Thunderstorm WarningTSAOsage46 min
May 7, 5:17 AM CDTSevere Thunderstorm WarningTSACreek43 min
May 7, 5:17 AM CDTSevere Thunderstorm WarningTSAWashington43 min
May 7, 5:38 AM CDTSevere Thunderstorm WarningTSANowata52 min
May 7, 6:04 AM CDTSevere Thunderstorm WarningTSACraig56 min
May 7, 6:35 AM CDTSevere Thunderstorm WarningTSAPittsburg40 min
May 7, 7:50 AM CDTSevere Thunderstorm WarningTSALatimer40 min
May 7, 7:59 AM CDTSevere Thunderstorm WarningTSALeFlore61 min
May 7, 9:00 AM CDTSevere Thunderstorm WarningTSALeFlore45 min
May 7, 8:40 AM CDTSevere Thunderstorm WarningTSAScott65 min
May 7, 9:44 AM CDTSevere Thunderstorm WarningTSAPolk46 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1994Every severe thunderstorm warning in 1994

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.