Alert archive / Oklahoma / Flash Flood Warnings in 1989

Flash Flood Warning 20, NWS Norman, OK

June 13, 1989Cleveland County, Oklahoma County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 13, 1989, 7:12 AM CDT for Cleveland County, Oklahoma County, Oklahoma. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 13, 1989, 7:12 AM CDT (12:12 UTC)
Expired
Jun 13, 1989, 9:15 AM CDT
In force
2 hr
Issued by
NWS Norman, OK
Area
Whole counties

Counties Cleveland County, OK, Oklahoma County, OK

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 0.2 hours before the alert went out and 18 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-pSkew-T log-p diagram, Norman, OK at 12:00Z on 1989-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 1989-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
17 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:01 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Grant, Woods59 min
Jun 12, 7:01 PM CDTSevere Thunderstorm WarningOUNKay59 min
Jun 12, 7:17 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward58 min
Jun 12, 7:57 PM CDTSevere Thunderstorm WarningOUNKay63 min
Jun 12, 8:14 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward46 min
Jun 12, 11:34 PM CDTSevere Thunderstorm WarningOUNHarmon56 min
Jun 13, 12:17 AM CDTSevere Thunderstorm WarningOUNGreer, Jackson58 min
Jun 13, 1:04 AM CDTSevere Thunderstorm WarningOUNKiowa41 min
Jun 13, 1:19 AM CDTSevere Thunderstorm WarningOUNTillman41 min
Jun 13, 2:13 AM CDTSevere Thunderstorm WarningOUNCaddo, Grady47 min
Jun 13, 2:34 AM CDTSevere Thunderstorm WarningOUNMcClain56 min
Jun 13, 2:55 AM CDTFlash Flood WarningOUNCaddo, Comanche3 hr
Jun 13, 3:01 AM CDTSevere Thunderstorm WarningOUNGrady44 min
Jun 13, 3:21 AM CDTSevere Thunderstorm WarningOUNCleveland54 min
Jun 13, 3:29 AM CDTSevere Thunderstorm WarningOUNMcClain46 min
Jun 13, 3:45 AM CDTSevere Thunderstorm WarningOUNOklahoma60 min
Jun 13, 4:01 AM CDTSevere Thunderstorm WarningOUNPottawatomie59 min
Jun 13, 4:06 AM CDTFlash Flood WarningOUNCleveland, Oklahoma3 hr
Jun 13, 4:22 AM CDTSevere Thunderstorm WarningOUNCarter53 min
Jun 13, 4:30 AM CDTSevere Thunderstorm WarningOUNLincoln60 min
Jun 13, 4:36 AM CDTFlash Flood WarningOUNLincoln, Pottawatomie3 hr
Jun 13, 6:52 AM CDTSevere Thunderstorm WarningOUNChoctaw53 min

Nearby

Flash Flood Warnings in Oklahoma, 1989Every flash flood warning in 1989

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.