Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 421, NWS Tulsa, OK

October 31, 1994Tulsa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 31, 1994, 4:05 AM CST for Tulsa County, Oklahoma. It was in force for 40 min.

The area

The counties it named.

The facts

Issued: Oct 31, 1994, 4:05 AM CST (10:05 UTC)
Expired: Oct 31, 1994, 4:45 AM CST
In force: 40 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Tulsa County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 10.1 hours before the alert went out and 166 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: 25 J/kg
Mixed-layer CIN: -231 J/kg
Mixed-layer LCL: 1111 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Oct 31, 3:41 AM CST, 24 minutes earlier.

Area forecast discussion, Oct 31, 3:41 AM CST, 24 minutes before

AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
340 AM CST MON OCT 31 1994

VRY SLW MOVG CDFNT LTS-NR OKC-BVO SHUD GET A KICK SWD AS S/W MOVS
ACRS FCST AREA TDAY. STG CNVCTN ALNG BNDRY WL MOVE ACRS FCST AREA
NXT FEW HRS...PROB EXITING NE OK BY 12Z. SCTD RW- PSBL BHND BAND
OF RW/TRW UNTIL S/W TROF AXIS MOVS ACRS FCST AREA. WILL WORD SCTD
RW/TRW ENDG THIS MORNG XTRM N...ENDG BY MIDDAY ELSWHR IN NE/ECTRL
OK...AND JUST CHC RW/TRW MAINLY IN MORNING SE. WILL ONLY GO WITH
40 TO 50 POPS ACRS AREA...AS RAIN NOW ON RDR SHUD DIMINISH TO
SCTD RW- TUL NWD (WITH WDSPRD RN ACRS SE KS) AND BAND OF RW/TRW
(WKNG) E AND SE OF TUL BY 12Z.

MDLS PUSH S/W TROF AXIS ACRS FCST AREA ARND 18Z AND E OF FCST
AREA BY 00Z. CDFNT SHUD PUSH SE OF FCST AREA BY 00Z. SGNFCNT
DRYING AND DOWNWRD VRTCL MOTION BEHIND S/W SHUD SPRD ACRS MUCH OF
AREA THIS AFTN (XTRM SE ZNS THIS EVNG). WILL GO WITH DCRSG CLDS
THIS AFTN NE AND ECTRL...CLRG LATE IN DAY SE (IN EVNG XTRM SE).
MSTLY SUNNY SKIES XPCTD TMRW AS S/W RIDGE BLDS OVR FCST AREA.

TEMPS TDAY TRICKY WITH CLDS/PCPN/CAA BEHND FNTL BDRY AND CLRG
SKIES THIS AFTN...WL GO W/ HI TMPS 60-65 XTRM N...MID 60S NE/
ECTRL...AND ARND 70 SE. FOR TNGT...CUD SEE SOME M-U 30S NRN
ZNS...WL GO WITH 35-40 XTRM N...ARND 40 NE/ECTRL...40-45 SE. WITH
M SUNNY SKIES AND WAA RTRNG TMRW...SHUD SEE AFTN TEMPS IN 65 TO
70 RANGE ACRS FCST AREA (ARND 70 SE).

PRELIM NUMBERS...

TUL 64/39  67/46  5000
MjLC 65/40  69/46  4000
BVO 63/37  67/45  5000
IDB 71/46  69/45  4-00

.TUL...NONE.

In the hours before

Local storm report, Oct 31, 3:40 AM CST, 25 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
340 AM CST MON OCT 31 1994

TIME (CDT)     COUNTY/STATE     EVENT

325 AM         CREEK/OK         60 MILE AN HOUR WINDS IN DRUMRIGHT

Local storm report, Oct 31, 3:42 AM CST, 23 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
340 AM CST MON OCT 31 1994

TIME (CDT)     COUNTY/STATE     EVENT

325 AM         CREEK/OK         60 MILE AN HOUR WINDS IN DRUMRIGHT

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 31, 2:46 AM CST	Severe Thunderstorm Warning	TSA	Osage, Pawnee	59 min
Oct 31, 3:18 AM CST	Severe Thunderstorm Warning	TSA	Creek	57 min
Oct 31, 3:41 AM CST	Severe Thunderstorm Warning	TSA	Tulsa	64 min
Oct 31, 3:56 AM CST	Severe Thunderstorm Warning	TSA	Okmulgee	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1994 Every 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.