Alert archive / Oklahoma / Flash Flood Warnings in 1995

Flash Flood Warning 11, NWS Tulsa, OK

April 29, 1995Creek County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 29, 1995, 5:09 AM CDT for Creek County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Apr 29, 1995, 5:09 AM CDT (10:09 UTC)
Expired: Apr 29, 1995, 8:15 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Whole counties

County Creek County, OK

The radar

The Tulsa radar (KINX), 79 km from the middle of the area, began a volume at 10:10 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, 10.2 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-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: 174 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 886 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 199 m²/s²
0-3 km storm-relative helicity: 409 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 291009
FFWTUL
OKC037-145-291315-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
509 AM CDT SAT APR 29 1995
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  815 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST OKLAHOMA
 
   ...NORTHERN CREEK COUNTY...WAGONER COUNTY
 
WEATHER SERVICE RADAR IS INDICATING RAINFALL AMOUNTS AROUND 2 INCHES
HAVE OCCURRED FROM SAPULPA TO BROKEN ARROW TO WAGONER. SLOW MOVING
THUNDERSTORMS WILL CONTINUE MOVING ACROSS THESE AREAS DURING THE
NEXT FEW HOURS...RESULTING IN ADDITIONAL HEAVY RAINFALL.  THE
RAINFALL WILL BE HEAVY ENOUGH TO PRODUCE WIDESPREAD STREET FLOODING...
AND PUSH WATER LEVELS IN CREEKS ABOVE BANKFULL.
 
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT DRIVE YOUR
VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY.  THE WATER
MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY.  IF YOUR
VEHICLE GETS CAUGHT IN RISING WATER...ABANDONED IT QUICKLY.  THEN
MOVE TO HIGHER GROUND.

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 29, 3:55 AM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, Apr 29, 3:55 AM CDT, 1 hour 14 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
350 AM CDT SAT APR 29 1995

DIFFICULT FCST THE NEXT 48 HRS WITH SIGNIFICANT DIFFERENCES NOTED IN
THE SHRT RNG MDLS...ESPECIALLY 36-48 HRS.  BASED ON NMC DISCUSSIONS...
ETA/AVN SEEM TO BE MDL OF CHOICE.

AT 08Z SFC LOW WAS OVR FAR NRN TX PANHANDLE WITH WM FNT OVR CNTRL OK
TO NE TX. STG TO SVR CONVECTION HAS DEVELOPED N OF THE WM FNT OVR NE
OK...IN AREA OF BEST H85 SPD CONVERGENCE.  ACTIVITY IS NOW SHOWING
A SWD PUSH...WITH A WELL-DEFINED STG GUST FNT ALG THE SRN EDGE.  THIS
CONVECTION WL SUPRESS WM FNT AND WL LEAVE A MESOSCALE BNDRY OVR THE
FA...BUT WERE THE BNDRY ENDS UP THIS AFTN IS TUFF TO ANSWER.  BY LATE
AFTN SFC LOW SHUD BE OVR NRN TX WITH SFC BNDRY ALG RED RVR.  GRIDDED
DATA INDICATES THAT A SUBTLE N-S SFC TROF/WND SHIFT LN WL TRAVERSE FA
TDY WITH DECENT VVELS ALG AND AHD OF THIS BNDRY.  ATTM...NOT SURE HOW
ONGOING CONVECTION WL AFFECT THE PROGRESSION OF THIS FEATURE.  FOR NOW
WL BROADBRUSH LIKELY POPS OVR ALL BUT EXTREME SE OK...WITH HIGHEST POPS
OVR NE OK/NW AR...IN RGN OF BEST LIFT.  CONSIDERED FFA FOR NE OK...BUT
DECIDED TO HANDLE SITN WITH WARNINGS IF NECESSARY.  COORD LIT/SGF/TOP.

BY TONIGHT...BEST VVEL SHIFTS E WITH WK SUBSIDENCE OVR MOST OF FA.  SFC
BNDRY WL STILL BE ALG RED RVR WITH GD LLVL MOISTURE (H85 DWPTS ARND 10C)
OVR SERN SECTIONS WITH ETA SHOWING H5 SHRTWV DROPPING INTO SW OK.  HIGHEST
POPS IN ORDER FOR SE OK...NR THE SFC FNT...WITH 20-30 POPS ELSEWHERE FOR
EVENING PCPN.

SFC FNT MOVES S AND E OF FA BY SUN WITH SFC RDG NOSING INTO ERN OK.  WL
KP LOW POPS OVR EXTREME SE OK EARLY...WITH DECREASING CLDS OVR REMAINDER
OF FA.  SFC PRES START TO LWR IN THE PLAINS SUN NGT WHICH CUD PULL SFC
BNDRY NWD IN WRN OK.  60 HR AVN SHOWS A FLAT H5 RDG MOVG INTO OK...SO
WON'T MENTION ANY POPS FOR NOW.

WENT A LTL BELOW GUIDANCE TDY DUE TO CLD CVR...OTHERWISE FWC/FAN LOOK OK.

PRELIM NUMBERS:

TUL 68/55 70/53 7211
FSM 72/56 74/52 7311
MLC 72/57 74/55 7311
BVO 66/53 69/51 7211
FYV 68/52 68/51 8311
IDB 75/60 75/58 5521

.TUL...NONE.

HODGES

In the hours before

Local storm report, Apr 29, 3:04 AM CDT, 2 hours 5 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
300 AM CDT SAT APR 29 1995

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

232 AM     HOMINY             f       OK   0.75 INCH HAIL
04/29/95   OSAGE

255 AM     AVANT                     OK   0.75 INCH HAIL
04/29/95   OSAGE

Local storm report, Apr 29, 4:05 AM CDT, 1 hour 4 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
404 AM CDT SAT APR 29 1995

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

340 AM     2 MI E OF CLAREMORE       OK   60 MPH WINDS
04/29/95   ROGERS

Local storm report, Apr 29, 4:46 AM CDT, 23 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
445 AM CDT SAT APR 29 1995

TIME(CDT)  .....CITY LOCATION.....   ST   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

445 AM     3 MI N OF LOCUST GROVE    OK   0.88 INCH HAIL
04/29/95   MAYES

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 1:05 AM CDT	Severe Thunderstorm Warning	TSA	Osage	55 min
Apr 29, 1:54 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	66 min
Apr 29, 1:54 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	66 min
Apr 29, 2:50 AM CDT	Flash Flood Warning	TSA	Nowata, Osage, Washington	3 hr
Apr 29, 2:54 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Tulsa	51 min
Apr 29, 3:03 AM CDT	Severe Thunderstorm Warning	TSA	Rogers, Washington	42 min
Apr 29, 3:41 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers	49 min
Apr 29, 3:56 AM CDT	Flash Flood Warning	TSA	Pawnee, Rogers, Tulsa	3 hr
Apr 29, 4:38 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes	52 min
Apr 29, 5:09 AM CDT	Flash Flood Warning	TSA	Wagoner	3 hr
Apr 29, 5:57 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	48 min
Apr 29, 6:10 AM CDT	Flash Flood Warning	TSA	Muskogee	3 hr
Apr 29, 7:26 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	49 min
Apr 29, 7:36 AM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee	3 hr
Apr 29, 9:43 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	47 min

Nearby

Flash Flood Warnings in Oklahoma, 1995 Every flash flood warning in 1995

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.