Alert archive / Oklahoma / Flash Flood Warnings in 1993
Flash Flood Warning 36, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at May 23, 1993, 7:20 AM CDT for McClain County, Oklahoma. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 23, 1993, 7:20 AM CDT (12:20 UTC)
- Expired
- May 23, 1993, 10:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County McClain County, OK
The radar
The Norman radar (KTLX), 39 km from the middle of the area, began a volume at 12:21 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, 0.3 hours before the alert went out and 24 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- -74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 May 23, 6:45 AM CDT, 35 minutes earlier.
Area forecast discussion, May 23, 6:45 AM CDT, 35 minutes before
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</html>In the hours before
Special weather statement, May 23, 6:05 AM CDT, 1 hour 15 minutes before
OKZ004>021-TXZ076-TXZ077-231300- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 600 AM CDT SAT MAY 22 1993 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND TONIGHT OVER THE WESTERN PORTIONS OF NORTH TEXAS AND IN NORTHERN...WESTERN AND CENTRAL OKLAHOMA...GENERALLY NORTHWEST OF A LINE FROM HOLDENVILLE TO MARIETTA. THUNDERSTORMS IN THE SLIGHT RISK AREA HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND STRONG WINDS. WEAK WINDS THROUGHOUT MOST OF THE ATMOSPHERE SHOULD PRECLUDE SUPERCELL AND SIGNIFICANT TORNADIC DEVELOPMENT. HOWEVER...WEAK ISOLATED TORNADOES ARE POSSIBLE. EARLY MORNING THUNDERSTORM ACTIVITY AND RATHER WEAK WIND FIELDS THROUGHOUT MOST OF THE ATMOSPHERE MAY PRECLUDE SEVERE THUNDERSTORM DEVELOPMENT UNTIL THIS EVENING OR TONIGHT WHEN THUNDERSTORMS MOVE FROM WEST TEXAS AND SOUTHWEST KANSAS INTO WESTERN OKLAHOMA AND THE WESTERN PORTIONS OF NORTH TEXAS. FLASH FLOODING IS POSSIBLE ACROSS PORTIONS OF WESTERN AND CENTRAL OKLAHOMA AND WESTERN PORTIONS OF NORTH TEXAS TODAY AND TONIGHT. ABUNDANT LOW LEVEL MOISTURE IS EXPECTED TO CONTINUE FLOWING NORTHWARD FROM THE GULF OF MEXICO. WEAK WINDS THROUGHOUT MOST OF THE ATMOSPHERE WILL LIKELY RESULT IN SLOW MOVING THUNDERSTORMS WHICH MAY RESULT IN FLASH FLOODING. SPOTTER ACTIVATION MAY BE NEEDED ACROSS THE SLIGHT RISK AREA LATER TODAY OR TONIGHT. AN UPDATED THUNDERSTORM OUTLOOK WILL BE ISSUED AROUND 1230 PM THIS AFTERNOON.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 9:45 AM CDT | Flash Flood Warning | OUN | Cleveland | 3 hr |
| May 23, 10:05 AM CDT | Flash Flood Warning | OUN | McClain | 3 hr |
| May 23, 11:07 AM CDT | Flash Flood Warning | OUN | Jefferson | 3 hr |
| May 23, 6:29 PM CDT | Severe Thunderstorm Warning | OUN | Foard | 46 min |
Nearby
Flash Flood Warnings in Oklahoma, 1993Every flash flood warning in 1993
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.