Alert archive / Arkansas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 140, NWS Tulsa, OK

April 28, 1994Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 28, 1994, 8:05 AM CDT for Crawford County, Sebastian County, Arkansas. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Apr 28, 1994, 8:05 AM CDT (13:05 UTC)
Expired: Apr 28, 1994, 9:00 AM CDT
In force: 55 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Crawford County, AR, Sebastian County, AR

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 1.1 hours before the alert went out and 172 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: 276 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 531 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 421 m²/s²
0-3 km storm-relative helicity: 444 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.9

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 Apr 28, 3:40 AM CDT, 4 hours 25 minutes earlier.

Area forecast discussion, Apr 28, 3:40 AM CDT, 4 hours 25 minutes before

AREA FORECAST DISCUSSION FOR EASTERN OKLAHOMA
NATIONAL WEATHER SERVICE TULSA OK
340 AM CDT THU APR 28 1994

TRW HV CONTD THIS MORN ALG KS BORDER NR AND JUST W OF 60 KT LO LVL
JET. EXTENT OF SWD DVLPMENT HAS BEEN LIMITD APPARENTLY DUE TO LYR OF
WARM AIR ARND 700 MB. SHORTWV CURRENTLY MOVG NEWD OUT OF NEW MEXICO
MAY AID DVLPMENT A LTL FARTHER S INTO NE OR EAST CNTRL OK THIS MORN.
AS SHORTWV MVS RAPIDLY NE INTO NEBRASKA THIS MORN...LOW LVL JET
PROGD TO SHIFT FROM ERN OK INTO MO AND IL. BY THIS EVE...XPCT
SFC LO BE NR BRL WITH A SFC BNDRY/FRONT EXTDG SWWD INTO SE OK AND
NRN TX. MODELS INDICATE SIG MID/UPR LVL DRYING TO MOVE INTO NW PART
OF FA THIS AFTN BEHIND THE NEB VORT MAX.

STG SW FLOW PATN TO CONT INTO FRI WITH ANOTHER STG SHORTWV MOVG
OUT OF SRN ROCKIES FRI AFTN. SHUD BE A LULL IN TRW ACTIVITY THURS
NITE BEFORE STG WAA AND UVM FROM APCH SHORTWV ALLOW WDSPRD TRW TO DVLP
OVR MAINLY NE OK FRI/FRI NITE. MODELS INDICATE THAT THIS SHORTWV WL COME
OUT A LTL FARTHER S THAN PREV WAVE...AND THEREFORE XPCT TRW DVLPMENT
TO OCCUR FARTHER SOUTH. THE THREAT OF SVR WL CONT ON FRI...AND CUD
BE SOME REAL MONSTER STORMS ALG WARM FRONT IN SRN OK/NRN TX
IN STGLY SHEARED ENVIRONMENT.

TEMPS FCST CONTS TO BE DIFFICULT WITH BIG TEMP CONTRAST ACRS
FA. WL FCST PERSISTENCE FOR EXTRM SE OK AND GO WITH AN LFM/NGM
MOS BLEND ELSEWHERE.
                                                     /9

TUL 65/49/63/50 4267      MLC 70/56/69/56 3247
BVO 65/48/63/49 6267      IDB 84/67/83/66 3336

.TUL...NONE.

In the hours before

Special weather statement, Apr 28, 2:55 AM CDT, 5 hours 10 minutes before

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Special weather statement, Apr 28, 3:22 AM CDT, 4 hours 43 minutes before

OKZ054>064-280930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
321 AM CDT THU APR 28 1994

...THE SEVERE THUNDERSTORM WATCH FOR NORTHEAST OKLAHOMA HAS BEEN
CANCELLED...

AT 316 AM...SHOWERS AND THUNDERSTORMS WERE SCATTERED TO THE NORTH OF A
FAIRFAX TO BARTLESVILLE TO WELCH LINE.  THESE SHOWERS AND THUNDERSTORMS
WILL STAY BELOW SEVERE LIMITS AS THEY MOVE NORTHEAST AT 40 MILES AN
HOUR.  NO SEVERE WEATHER IS EXPECTED ACROSS NORTHEAST OKLAHOMA DURING
THE REMAINDER OF THE NIGHT.  THUS...THE SEVERE THUNDERSTORM WATCH FOR
NORTHEAST OKLAHOMA HAS BEEN CANCELLED.

Special weather statement, Apr 28, 4:54 AM CDT, 3 hours 11 minutes before

OKC113-281100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
454 AM CDT THU APR 28 1994

...STRONG THUNDERSTORM IN OSAGE COUNTY...

AT 452 AM...RADAR INDICATED A STRONG THUNDERSTORM IN xOSAGE COUNTY ABOUT
5 MILES NORTH OF PAWHUSKA. PEA SIZE HAIL AND WIND GUSTS TO 50 MPH WILL
ACCOMPANY THIS STORM AS IT MOVES ACROSS BOWRING AND HULAH RESERVOIR. THE
STORM WAS MOVING NORTHEAST AT 45 MILES AN HOUR.

Special weather statement, Apr 28, 6:23 AM CDT, 1 hour 42 minutes before

OKZ054>071-281230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
623 AM CDT THU APR 28 1994

...SCATTERED STRONG THUNDERSTORMS ACROSS NORTHEAST OKLAHOMA...

SCATTERED THUNDERSTORMS WERE MOVING ACROSS NORTHEAST OKLAHOMA EARLY THIS
MORNING. AT 620 AM...RADAR INDICATED SHOWERS AND THUNDERSTORMS SCATTERED
OVER THAT PART OF EASTERN OKLAHOMA NORTH OF A LINE FROM HANNA TO
STILWELL. MOVEMENT WAS NORTHEAST AT 45 MILES AN HOUR.

THE STRO4NGEST STORMS AT 620 AM WERE NEAR INOLA...NEAR COLLINSVILLE...AND
NEAR OKMULGEE. THESE STORMS MAY PRODUCE SOME PEA SIZE HAIL AND WIND
GUSTS TO 50 MPH.

Special weather statement, Apr 28, 6:52 AM CDT, 1 hour 13 minutes before

OKC035-041-115-281300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
652 AM CDT THU APR 28 1994

AT 645 AM...RADAR INDICATED A SHORT LINE OF THUNDERSTORMS FROM NEAR
WELCH TO VINITA TO BIG CABIN...IN CRAIG COUNTY. THIS LINE WAS MOVING
RAPIDLY TO THE NORTHEAST AT ABOUT 45 MPH. THIS LINE OF THUNDERSTORMS
WILL PRODUCE STRONG GUSTY WINDS...AND OCCASIONALLY SMALL HAIL AS IT
MOVES NORTHEAST. PEA SIZE HAIL WAS REPORTED IN BIG CABIN AT 645 AzM.

THE LINE WILL MOVE ACROSS THE REMAINDER OF CRAIG COUNTY IN BY 715
AM...AND WILL MOVE INTO WESTERN PORTIONS OF OTTAWA AND NORTHERN
DELAWARE COUNTIES AROUND 715 AM.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Osage	58 min
Apr 27, 11:27 PM CDT	Severe Thunderstorm Warning	TSA	Osage	63 min
Apr 28, 8:05 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	40 min
Apr 28, 8:38 AM CDT	Severe Thunderstorm Warning	TSA	Madison	52 min
Apr 28, 9:18 AM CDT	Severe Thunderstorm Warning	TSA	Scott	27 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 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.