Alert archive / Oklahoma / Flash Flood Warnings in 1997
Flash Flood Warning 40, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Jul 17, 1997, 9:33 AM CDT for Kay County, Noble 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
- Jul 17, 1997, 9:33 AM CDT (14:33 UTC)
- Expired
- Jul 17, 1997, 12:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties
Counties Kay County, OK, Noble County, OK
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 2.6 hours before the alert went out and 26 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
- 883 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1157 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.5
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 Jul 17, 3:53 AM CDT, 5 hours 40 minutes earlier.
Area forecast discussion, Jul 17, 3:53 AM CDT, 5 hours 40 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 350 AM CDT THU JUL 17 1997 MESOSCALE CONVECTIVE VORTMAX SITTING AND SPINNING ITS WHEELS NEAR THE KAY/COWLEY CO KS BORDER CREATING TSTM COMPLEX THAT AS A WHOLE IS NOT MOVING AT ALL. SOME FLOODING HAS BEEN REPORTED RECENTLY IN THE BLACKWELL AREA. TSTMS HAVE ALSO FIRED IN NW/W OKLA SIMILAR TO THE LAST FEW MORNINGS. IT HAS BEEN THESE MORNING STORMS THAT HAVE CREATED THE MCVS TO SPAWN REDEVELOPMENT LATER. WESTERN LINE HAS DEVELOPED FARTHER SOUTH THAN THE LAST COUPLE OF MORNINGS... SO IF SAME SCENARIO HOLDS TOGETHER CANNOT RULE OUT CHC OF MCV THAT WOULD AFFECT AREAS FARTHER SOUTH. ALSO UNCERTAIN HOW CURRENT MCV WILL BEHAVE LATER TODAY. YET AGAIN CAP STRENGTH WILL BE THE QUESTION AS FAR AS TIMING AND AREAL COVERAGE OF TSTMS. BUT WITH CURRENT ACTIVITY IN THE WEST AND HABIT OF MORNING DEVELOPMENT IN THE WEST... CAN NOT RULE OUT RAIN ANYWHERE. ON THE SYNOPTIC SCALE... MODELS SHOW GENERAL LOOSENING OF THE UPPER HIGH /STILL SHOWING 3 DM H5 HEIGHT FALLS BY 48 HRS/ AND SLIGHT COOLING OF THE AMS. MOS TEMPS LOOK IN THE RIGHT BALLPARK. BUT MESOSCALE AND LOCAL FEATURES WILL DOMINATE THE WX AND THEREFORE DO NOT TRUST SYNOPTIC SCALE MODEL UVV AND PRECIP. NO TIME TO LOOK AT EXTDD SO WILL LEAVE IT ALONE ATTM. ...SPEG. OKC 96 71 95 72 / 20 20 20 20 HBR 99 71 98 70 / 20 20 20 20 SPS 100 72 99 71 / 20 20 20 20 GAG 98 68 96 68 /8 40 20 20 20 PNC 98 74 97 74 / 40 20 20 20 DUA 94 72 93 70 / 20 20 20 20 .OKC... OK...NONE. TX...NONE.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 7:30 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 60 min |
| Jul 16, 7:45 PM CDT | Flash Flood Warning | OUN | Kay | 2 hr |
| Jul 16, 8:03 PM CDT | Severe Thunderstorm Warning | OUN | Grant | 42 min |
| Jul 16, 8:32 PM CDT | Tornado Warning | OUN | Grant, Kay | 28 min |
| Jul 16, 9:02 PM CDT | Severe Thunderstorm Warning | OUN | Kay, Noble | 28 min |
| Jul 16, 9:48 PM CDT | Flash Flood Warning | OUN | Kay | 117 min |
| Jul 17, 3:09 AM CDT | Flash Flood Warning | OUN | Kay | 3 hr |
| Jul 17, 6:20 AM CDT | Flash Flood Warning | OUN | Kay, Noble | 3 hr |
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.