Alert archive / Oklahoma / Flash Flood Warnings in 1996

Flash Flood Warning 7, NWS Tulsa, OK

April 22, 1996LeFlore County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 22, 1996, 7:16 AM CDT for LeFlore County, Oklahoma. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 22, 1996, 7:16 AM CDT (12:16 UTC)
Expired
Apr 22, 1996, 9:15 AM CDT
In force
119 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County LeFlore County, OK

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 0.3 hours before the alert went out and 237 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, Springfield, MO at 12:00Z on 1996-04-22Temperature 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, Springfield, MO at 12:00Z on 1996-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-101 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.

000 
TTAA00 KTUL 221217
FFWTUL
OKC077-079-121-221415-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
716 AM CDT MON APR 22 1996
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST OKLAHOMA
 
   ...LATIMER COUNTY...CENTRAL LE FLORE COUNTY
   ...SOUTHERN PITTSBURG COUNTY
 
RADAR ESTIMATES INDICATE THAT UP TO 1 INCH OF RAIN HAS FALLEN IN THE
WARNED AREA SINCE 6 AM. SHOWERS AND THUNDERSTORMS CONTINUE TO MOVE
ACROSS THE WARNED AREA AND MAY PRODUCE AN ADDITIONAL INCH OF RAINFALL.
THIS WILL LIKELY RESULT IN FLASH FLOODING. THUS THE FLASH FLOOD WARNING
HAS BEEN EXTENDED FOR THIS AREA.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS LIKELY OR HAS BEEN
REPORTED.  STAY ALERT AND WATCH FOR RAPIDLY RISING WATER.
REMEMBER...IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO THE
NEAREST STREAM...CREEK OR RIVER WHICH CAN BECOME
 A KILLER DURING
PERIODS OF HEAVY RAIN.

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Apr 22, 4:05 AM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, Apr 22, 4:05 AM CDT, 3 hours 11 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
400 AM CDT MON APR 22 1996

STG/SVR TSTMS RMN ONGOING OVR FA THIS MRNG WITH ACTVTY CONTG
TO GRAD SHIFT TO THE SOUTH AND EAST.  CELLS CONTG TO TRAIN ACRS
THE AREA ROUGHLY FRM MLC TO FSM...SO WL CONT FF WATCH OVR A FEW
COUNTIES THRU MID-MRNG AS AXIS OF HEAVIEST RAIN WL RMN SLOW TO
TRANSLATE SOUTH AND EAST.  MESONET DATA SHOWNG RAINFALL AMTS OF
2 TO 4 INCHES IN AREAS WHERE TRAINING HAS BEEN OCCURRING DURING
THE NGT.  MESONET ALSO SHOWING CDFNT HAS FINALLY ENTERED NWRN
PART OF FA WITH STRONGER NWLY WNDS AND LOWER DWPTS MOVG IN
OVR OSAGE AND PAWNEE COUNTIES.  CDFNT WL CONT TO MOV ACRS THE
AREA THRU THE DAY AND SHLD BE TO THE SE OF THE AREA BY THIS EVNG.
SATL HAS S/WV MOVG ACRS NM THIS MRNG WITH UPR TROF AXIS TO
FINALLY MOV ACRS THE PLNS TDA AND TNGT BRINGING PRECIP TO AN
END AS SFC HI PRES BUILDS IN.

PRELIM NUMBERS:  TUL 66/43/73 100  BVO 62/40/73 1x00
                 FSM 68/46/73 910  FYV 64/42/69 910
...04...         MLC 66/46/74 7-0  IDB 75/48/75 910

.TUL...
OK...FLASH FLOOD WATCH ZNS 73/75/76 THRU MID-MRNG.
AR...FLASH FLOOD WATCH ZNS 29 THRU MID-MRNG.

In the hours before

Special weather statement, Apr 22, 1:31 AM CDT, 5 hours 45 minutes before
OKZ057-058-060>062-064-067-220900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
130 AM CDT MON APR 22 1996

...TORNADO WATCH NUMBER 218 HAS BEEN CANCELLED FOR THE FOLLOWING
NORTHEAST OKLAHOMA COUNTIES...

CREEK...TULSA...WAGONER...ROGERS...CRAIG...MAYES AND OTTAWA.

THE THREAT OF SEVERE WEATHER HAS SHIFTED TO THE SOUTH AND EAST
OF THESE COUNTIES.

A TORNADO WATCH REMAINS IN EFFECT FOR THE REST OF EASTERN OKLAHOMA
SOUTH AND EAST 4OF THESE COUNTIES UNTIL 300 AM CDT.
Special weather statement, Apr 22, 4:30 AM CDT, 2 hours 46 minutes before
OKZ057-058-060>062-064-067-220900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
425 AM CDT MON APR 22 1996

...TORNADO WATCH NUMBER 218 HAS BEEN CANCELLED FOR THE FOLLOWING
EASTERN OKLAHOMA COUNTIES...

SEQUOYAH AND HASKELL.

THE TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CDT FOR THE FOLLOWING
EASTERN OKLAHOMA COUNTIES...

PITTSBURG...LATIMER...AND LE FLORE.

SEE SHORT TERM FORECASTS ISSUED BY THIS OFFICE FOR DETAILS ON THE
THUNDERSTORMS.
Special weather statement, Apr 22, 4:33 AM CDT, 2 hours 43 minutes before
OKZ057-058-060>062-064-067-221000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
430 AM CDT MON APR 22 1996

...TORNADO WATCH NUMBER 218 HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES IN NORTHWEST ARKANSAS...

BENTON...CARROLL...WASHINGTON...MADISON...AND CRAWFORD.

THE TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CDT FOR MUCH OF ARKANSAS
INCLUDING...

SEBASTIAN COUNTY  IN NORTHWEST ARKANSAS.

SEE SHORT TERM FORECASTS ISSUED BY THIS OFFICE FOR DETAILS ON THE
THUNDERSTORMS.
Special weather statement, Apr 22, 5:56 AM CDT, 1 hour 20 minutes before
ARZ001-002-010-011-019-029-OKZ054>077-221800-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
600 AM CDT MON APR 22 1996

...TORNADO WATCH NUMBER 224 REMAINS IN EFFECT FOR PORTIONS OF
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS UNTIL 9 AM CDT...

...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR PITTSBURG...LATIMER...
AND LE FLORE COUNTIES IN OKLAHOMA...AND FOR SEBASTIAN COUNTY IN
ARKANSAS THROUGH MID MORNING...

A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE DURING THE MORNING OVER
SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS GENERALLY SOUTHEAST OF A
LINE FROM FORT SMITH TO MCALESTER.

MOIST UNSTABLE AIR WILL REMAIN OVER SOUTHEAST OKLAHOMA AND WESTERN
ARKANSAS THROUGH THE MORNING.  A LINE OF THUNDERSTORMS AT 6 AM
EXTENDED FROM NEAR FORT SMITH TO NEAR MCALESTER...AND SHOULD ACT AS
A NORTHERN BOUNDARY...AND KEEP ANY ADDITIONAL THUNDERSTORM
DEVELOPMENT ALONG OR SOUTH OF THAT LINE.  A COLD FRONT...MOVING
THOUGH NORTHEAST OKLAHOMA WILL MOVE THROUGH NORTHWEST ARKANSAS AND
SOUTHEAST OKLAHOMA LATER THIS MORNING...BRINGING DRIER AND MORE
STABLE AIR INTO THE AREA.  THIS SHOULD END THE CHANCE OF SEVERE
WEATHER BEFORE NOON.

SPOTTERS SHOULD REMAIN ALERT TO THE POSSIBILITY OF SEVERE WEATHER
THROUGH THE MORNING OVER THE OUTLOOKED AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:05 PM CDTTornado WarningTSACraig, Nowata40 min
Apr 21, 7:09 PM CDTTornado WarningTSAWashington36 min
Apr 21, 7:22 PM CDTTornado WarningTSANowata53 min
Apr 21, 7:32 PM CDTTornado WarningTSACraig, Ottawa43 min
Apr 21, 7:43 PM CDTTornado WarningTSANowata32 min
Apr 21, 7:54 PM CDTSevere Thunderstorm WarningTSACraig21 min
Apr 21, 8:08 PM CDTTornado WarningTSAOttawa37 min
Apr 21, 8:20 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg55 min
Apr 21, 8:57 PM CDTTornado WarningTSAMcIntosh, Pittsburg48 min
Apr 21, 9:30 PM CDTTornado WarningTSAHaskell45 min
Apr 21, 9:34 PM CDTSevere Thunderstorm WarningTSAOkfuskee41 min
Apr 21, 9:39 PM CDTTornado WarningTSAPittsburg21 min
Apr 21, 10:05 PM CDTTornado WarningTSAHaskell40 min
Apr 21, 10:15 PM CDTSevere Thunderstorm WarningTSAOkmulgee45 min
Apr 21, 10:22 PM CDTTornado WarningTSALeFlore, Sequoyah53 min
Apr 21, 10:25 PM CDTSevere Thunderstorm WarningTSAMcIntosh50 min
Apr 21, 10:37 PM CDTFlash Flood WarningTSACherokee3 hr
Apr 21, 11:17 PM CDTSevere Thunderstorm WarningTSAOkfuskee43 min
Apr 21, 11:28 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa, Wagoner47 min
Apr 21, 11:40 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Okmulgee50 min
Apr 21, 11:44 PM CDTSevere Thunderstorm WarningTSAOkfuskee46 min
Apr 22, 12:25 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee50 min
Apr 22, 12:36 AM CDTTornado WarningTSAMcIntosh39 min
Apr 22, 12:41 AM CDTSevere Thunderstorm WarningTSACherokee, Wagoner49 min
Apr 22, 12:46 AM CDTSevere Thunderstorm WarningTSAPittsburg44 min
Apr 22, 12:55 AM CDTTornado WarningTSAMuskogee35 min
Apr 22, 12:59 AM CDTSevere Thunderstorm WarningTSASequoyah46 min
Apr 22, 1:19 AM CDTTornado WarningTSASequoyah41 min
Apr 22, 1:24 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee51 min
Apr 22, 1:28 AM CDTSevere Thunderstorm WarningTSAPittsburg32 min
Apr 22, 1:36 AM CDTSevere Thunderstorm WarningTSAHaskell, Latimer54 min
Apr 22, 1:45 AM CDTTornado WarningTSALatimer, Pittsburg45 min
Apr 22, 1:50 AM CDTTornado WarningTSAAdair40 min
Apr 22, 2:18 AM CDTFlash Flood WarningTSALatimer, Pittsburg3 hr
Apr 22, 2:22 AM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore53 min
Apr 22, 2:34 AM CDTFlash Flood WarningTSAHaskell3 hr
Apr 22, 7:16 AM CDTFlash Flood WarningTSALatimer, Pittsburg119 min
Apr 22, 8:37 AM CDTFlash Flood WarningTSAHaskell2 hr

Nearby

Flash Flood Warnings in Oklahoma, 1996Every flash flood warning in 1996

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.