Alert archive / Oklahoma / Flash Flood Warnings in 1996
Flash Flood Warning 35, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Oct 20, 1996, 8:30 PM CDT for Stephens County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 20, 1996, 8:30 PM CDT (01:30 UTC)
- Expired
- Oct 20, 1996, 11:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Stephens County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.5 hours before the alert went out and 91 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.
- Mixed-layer CAPE
- 2190 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.1
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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before this flash flood warning went out at Oct 20, 3:57 PM CDT, 4 hours 33 minutes earlier.
Area forecast discussion, Oct 20, 3:57 PM CDT, 4 hours 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 330 PM CDT SUN OCT 20 1996 CDFNT HAS EDGED INTO NWRN CORNER OF OK THIS AFTN WHILE TO THE SW AN AREA OF SCT TSTMS HAS DVLPD IN THE SERN TX PH. FNT MOVG ON THROUGH MUCH OF THE FA TNGT WHILE LARGE AMP UPR TROF DVLPS AND APRCHS FM THE W. SUF DESTABILIZATION TO WARRANT MENTION OF TSTMS MST ALL ZONES TNGT THO LO LVL MSTR WL BE SHALLOW DUE TO VEERING LO LVL WNDS AHD OF THE FNTL ZONE. THE REAL CAA LAGS THE FNT CONSIDERABLY AND WL GET STARTED LATE TNGT AND TMRW WITH STEADY OR VRY SLOLY FALLING TEMPS EXPECTED MUCH OF THE AREA BY LATE MRNG. WITH GOOD LIFT FM APRCHG UPR WV... CLOUDY SKIES AND CHC OF RAIN ALSO ANTICIPATED. MODELS SHOW THICKNESS VALUES SUF COLD FOR SOME OF THE RAIN TO BCM MXD WITH SNOW NWRN COUNTIES BEFORE THE THREAT OF PCPN TAPERS OFF BY ERY MON NGT WITH END OF UVV FROM THE UPR SYSM. FCSTID = 12 OKC 53 55 36 50 / 30 40 20 10 HBR 49 52 < 36 52 / 30 50 20 10 SPS 59 64 38 56 / 30 40 30 10 GAG 40 42 29 47 / 30 40 20 10 PNC 50 53 35 48 / 30 40 30 10 DUA 63 66 45 56 / 30 40 30 10 .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, Oct 20, 5:59 PM CDT, 2 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
558 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
555 PM 4 SOUTH SNYDER OK 65 MPH WINDS
10/20/96 TILLMAN
CWLocal storm report, Oct 20, 6:27 PM CDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
628 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
615 PM 3 NW CHATTANOOGA OK .88 INCHES HAIL
10/20/96 COMANCHE
CWLocal storm report, Oct 20, 6:32 PM CDT, 1 hour 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
635 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
630 PM 7 SW LAWTON OK 1.00 INCH HAIL
10/20/96 COMANCHE
CWLocal storm report, Oct 20, 7:28 PM CDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
732 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
720 PM DUNCAN OK 1.25 INCH HAIL.
10/20/96 STEPHENS
721 PM 4 W DUNCAN OK 1.75 INCH HAIL.
10/20/96 STEPHENS
721 PM 1 N EMPIRE CITY OK 1.75 INCH HAIL.
10/20/96 STEPHENS
728 PM 2 S DUNCAN OK 1.75 INCH HAIL.
10/20/96 STEPHENS
728 PM 2 SW DUNCAN OK 2.75 INCH HAIL.
10/20/96 STEPHENS
MCCAMMONLocal storm report, Oct 20, 7:53 PM CDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
755 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
746 PM 5W VELMA OK 0.88 INCH HAIL.
10/20/96 STEPHENS
MCCAMMONLocal storm report, Oct 20, 8:10 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
814 PM CDT SUN OCT 20 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
8100 PM KINGFISHER OK 1.00 INCH HAIL.
10/20/96 KINGFISHER
MCCAMMONThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 20, 7:07 PM CDT | Tornado Warning | OUN | Stephens | 38 min |
| Oct 20, 7:43 PM CDT | Tornado Warning | OUN | Carter, Stephens | 32 min |
| Oct 20, 8:07 PM CDT | Severe Thunderstorm Warning | OUN | Kingfisher | 53 min |
| Oct 20, 8:13 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Kiowa, Tillman | 47 min |
| Oct 20, 8:15 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Murray | 45 min |
| Oct 20, 8:15 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 45 min |
| Oct 20, 8:26 PM CDT | Severe Thunderstorm Warning | OUN | Logan | 49 min |
| Oct 20, 8:55 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 50 min |
| Oct 20, 8:59 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Murray | 46 min |
| Oct 20, 9:00 PM CDT | Severe Thunderstorm Warning | OUN | Noble, Payne | 45 min |
| Oct 20, 9:15 PM CDT | Tornado Warning | OUN | Murray | 30 min |
| Oct 20, 9:20 PM CDT | Severe Thunderstorm Warning | OUN | Grady, Stephens | 40 min |
| Oct 20, 9:40 PM CDT | Flash Flood Warning | OUN | Murray | 3 hr |
| Oct 20, 9:40 PM CDT | Severe Thunderstorm Warning | OUN | Payne | 50 min |
| Oct 20, 9:43 PM CDT | Tornado Warning | OUN | Murray | 32 min |
| Oct 20, 9:47 PM CDT | Severe Thunderstorm Warning | OUN | Carter | 43 min |
| Oct 20, 9:49 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Oklahoma | 41 min |
| Oct 20, 9:57 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, Grady, McClain, Stephens | 48 min |
| Oct 20, 10:02 PM CDT | Severe Thunderstorm Warning | OUN | Johnston, Pontotoc | 43 min |
| Oct 20, 10:26 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Murray | 49 min |
| Oct 20, 10:26 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Payne | 49 min |
| Oct 20, 10:35 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal | 40 min |
| Oct 20, 10:41 PM CDT | Severe Thunderstorm Warning | OUN | Garvin | 49 min |
| Oct 20, 10:45 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Johnston | 60 min |
| Oct 20, 11:07 PM CDT | Severe Thunderstorm Warning | OUN | Murray, Pontotoc | 53 min |
| Oct 20, 11:11 PM CDT | Severe Thunderstorm Warning | OUN | Coal | 49 min |
| Oct 20, 11:37 PM CDT | Severe Thunderstorm Warning | OUN | Johnston, Marshall | 53 min |
| Oct 20, 11:43 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Pushmataha | 47 min |
| Oct 21, 12:01 AM CDT | Severe Thunderstorm Warning | OUN | Bryan | 29 min |
| Oct 21, 12:30 AM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Choctaw, Pushmataha | 60 min |
| Oct 21, 12:45 AM CDT | Severe Thunderstorm Warning | OUN | Marshall | 30 min |
| Oct 21, 1:28 AM CDT | Severe Thunderstorm Warning | OUN | Bryan | 47 min |
| Oct 21, 1:32 AM CDT | Severe Thunderstorm Warning | OUN | Choctaw, Pushmataha | 43 min |
| Oct 21, 2:53 AM CDT | Severe Thunderstorm Warning | OUN | Choctaw | 67 min |
| Oct 21, 9:38 AM CDT | Flash Flood Warning | OUN | Atoka, Bryan, Choctaw, Pushmataha | 3 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.