Alert archive / Oklahoma / Flash Flood Warnings in 1997
Flash Flood Warning 22, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Jun 28, 1997, 8:40 AM CDT for Canadian County, Kingfisher 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 28, 1997, 8:40 AM CDT (13:40 UTC)
- Expired
- Jun 28, 1997, 11:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Canadian County, OK, Kingfisher County, OK
The radar
The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 13:44 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 12:00Z, 1.7 hours before the alert went out and 58 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
- 2059 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KOKC 281342
FFWOKC
OKC017-073-281630-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORMAN OK
840 AM CDT SAT JUN 28 1997
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 1130 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN CENTRAL OKLAHOMA
CANADIAN AND SOUTHERN KINGFISHER
INCLUDING THE FOLLOWING LOCATIONS
CALUMET...CASHION...EL RENO...KINGFISHER...MUSTANG...
OKARCHE...PIEDMONT...UNION CITY AND YUKON
AT 835 AM CDT RADAR INDICATED VERY HEAVY RAIN CONTINUING ACROSS
SOUTHERN KINGFISHER COUNTY AND MUCH OF THE WESTERN HALF OF CANADIAN
COUNTY. FIVE INCHES OF RAIN WAS OBSERVED OVERNIGHT ACROSS EXTREME
SOUTHWEST KINGFISHER COUNTY. HIGH WATER MAY MAKE SOME HIGHWAYS
IMPASSABLE...ESPECIALLY IN THE EL RENO AREA.
ALTHOUGH THE HEAVY RAIN ACTIVITY IS BEGINNING TO SHOW A DISSIPATING
TREND...THE THREAT OF FLASH FLOODING WILL CONTINUE FOR THE NEXT SEVERAL
HOURS.
DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS. IT ONLY TAKES A FOOT
OR TWO OF WATER TO WASH MOST CARS AWAY. IF YOU LIVE IN A FLOOD
PRONE AREA MOVE TO HIGHER GROUND. DO NOT ATTEMPT TO WALK
THROUGH AREAS OF RAPIDLY FLOWING WATER. AVOID STORM DRAINS AND
SMALL CREEKS THAT WILL QUICKLY RISE TO DANGEROUS LEVELS.
LAT...LON 3535 9770 3539 9821 3589 9817 3589 9766What 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 Jun 28, 3:30 AM CDT, 5 hours 10 minutes earlier.
Area forecast discussion, Jun 28, 3:30 AM CDT, 5 hours 10 minutes before
FPUS3 KOKC 280824 AFDOKC AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 330 AM CDT SAT JUN 28 1997 ABUNDANT LOW LEVEL MOISTURE...LITTLE OR NO CAP...AND A WK AND SLOW MOVING TROF AT H5 SHD AGAIN COMBINE TO CAUSE SCATTERED THUNDERSTORMS THIS AFTERNOON. DRYLINE SHD STAY WEST OF THE FA BUT TSTMS WHICH FORM JUST TO THE EAST OF IT THIS AFTERNOON COULD DRIFT INTO WRN COUNTIES OF OKLA AND N TX TONIGHT. SUNDAY SHD SEE THE SLOW MOVING TROF SHIFTING E OF THE AREA...FOLLOWED BY SOME WEAK RIDGING ALF AND WRMING AT H7 LEVELS WHICH WL STRENGTHEN THE CAP. WL HOLD ONTO CHICKEN 20 PCT POPS MOST SECS INTO SUN NGT. EXTENDED PD LOOKS LIKE TYPICAL SUMMER WX PTRN WITH DAYTIME TEMPS IN THE 90S. GUID POPS NR CLIMO AND WL OPT TO LEAVE MENTION OF PCPN OUT OF EFP PDS FOR NOW. FCSTID = 12 OKC 92 71 93 72 / 30 20 20 20 HBR 92 70 94 71 / 20 30 20 20 SPS 95 72 96 73 / 30 20 20 20 GAG 90 68 92 69 / 20 30 20 20 PNC 96 72 97 73 / 30 20 20 20 DUA 91 73 93 73 / 40 30 20 20 .OKC... OK...NONE. TX...NONE.
In the hours before
Special weather statement, Jun 28, 6:30 AM CDT, 2 hours 10 minutes before
OKZ004>053-TXZ083>090-281730- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVEICE NORMAN OKLAHOMA 630 AM CDT SAT JUN 28 1997 ...THERE IS A RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON ACROSS PORTIONS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS. THE SLIGHT RISK AREA IS WEST OF A LINE FROM WOODWARD TO HOBART TO WICHITA FALLS. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS. EARLY THIS MORNING...SHOWERS AND THUNDERSTORMS WERE OCCURRING MAINLY ACROSS CENTRAL OKLAHOMA IN ASSOCIATION WITH AN UPPER LEVEL DISTURBANCE. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE AND WILL DECREASE IN COVERAGE AND INTENSITY DURING THE MORNING AS THE UPPER LEVEL DISTURBANCE MOVES EAST OF THE AREA. DURING THE AFTERNOON...A DRYLINE WILL SET UP ACROSS THE TEXAS PANHANDLE. AHEAD OF THE DRYLINE...THE AIRMASS OVER MUCH OF OKLAHOMA AND NORTH TEXAS WILL REMAIN VERY MOIST WITH DEWPOINT TEMPERATURES IN THE UPPER 60S TO LOWER 70S. THE MID LEVELS OF THE ATMOSPHERE WILL REMAIN RELATIVELY COOL...MAKING THE CAPPING INVERSION WEAK AT BEST. THUS...THE AIRMASS IMMEDIATELY EAST OF THE DRYLINE WILL BECOME UNSTABLE ENOUGH TO ALLOW FOR THUNDERSTORMS...SOME SEVERE...TO DEVELOP LATER THIS AFTERNOON AND EVENING. STORM MOVEMENT IS EXPECTED TO BE TO THE EAST AND NORTHEAST. THE MAIN THREATS WITH THE STORMS THAT DEVELOP LATER TODAY WILL BE LARGE HAIL AND DAMAGING WINDS. HOWEVER...THE VERTICAL WIND SHEAR PROFILE SUGGEST THAT STORMS DEVELOPING IN THE SLIGHT RISK AREA WILL HAVE THE POTENTIAL TO ROTATE...MAKING ISOLATED TORNADOES ALSO POSSIBLE. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS IN THE SLIGHT RISK AREA SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES. MMT
Special weather statement, Jun 28, 6:36 AM CDT, 2 hours 4 minutes before
OKZ004>053-TXZ083>090-281730- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVEICE NORMAN OKLAHOMA 630 AM CDT SAT JUN 28 1997 ...THERE IS A RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON ACROSS PORTIONS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS. THE SLIGHT RISK AREA IS WEST OF A LINE FROM WOODWARD TO HOBART TO WICHITA FALLS. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS. EARLY THIS MORNING...SHOWERS AND THUNDERSTORMS WERE OCCURRING MAINLY ACROSS CENTRAL OKLAHOMA IN ASSOCIATION WITH AN UPPER LEVEL DISTURBANCE. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE AND WILL DECREASE IN COVERAGE AND INTENSITY DURING THE MORNING AS THE UPPER LEVEL DISTURBANCE MOVES EAST OF THE AREA. DURING THE AFTERNOON...A DRYLINE WILL SET UP ACROSS THE TEXAS PANHANDLE. AHEAD OF THE DRYLINE...THE AIRMASS OVER MUCH OF OKLAHOMA AND NORTH TEXAS WILL REMAIN VERY MOIST WITH DEWPOINT TEMPERATURES IN THE UPPER 60S TO LOWER 70S. THE MID LEVELS OF THE ATMOSPHERE WILL REMAIN RELATIVELY COOL...MAKING THE CAPPING INVERSION WEAK AT BEST. THUS...THE AIRMASS IMMEDIATELY EAST OF THE DRYLINE WILL BECOME UNSTABLE ENOUGH TO ALLOW FOR THUNDERSTORMS...SOME SEVERE...TO DEVELOP LATER THIS AFTERNOON AND EVENING. STORM MOVEMENT IS EXPECTED TO BE TO THE EAST AND NORTHEAST. THE MAIN THREATS WITH THE STORMS THAT DEVELOP LATER TODAY WILL BE LARGE HAIL AND DAMAGING WINDS. HOWEVER...THE VERTICAL WIND SHEAR PROFILE SUGGEST THAT STORMS DEVELOPING IN THE SLIGHT RISK AREA WILL HAVE THE POTENTIAL TO ROTATE...MAKING ISOLATED TORNADOES ALSO POSSIBLE. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS IN THE SLIGHT RISK AREA SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR LATER UPDATES. MMT
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 1:35 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 40 min |
Nearby
Flash Flood Warnings in Oklahoma, 1997Every flash flood warning in 1997
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.