Alert archive / Oklahoma / Flash Flood Warnings in 2012

Flash Flood Warning 7, NWS Norman, OK

June 6, 2012Carter County, Love County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jun 6, 2012, 3:20 PM CDT for Carter County, Love 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 as issued.

The facts

Issued
Jun 6, 2012, 3:20 PM CDT (20:20 UTC)
Expired
Jun 6, 2012, 6:15 PM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

Counties Carter County, OK, Love County, OK

The radar

The Dallas/Ft Worth radar (KFWS), 148 km from the middle of the area, began a volume at 20:23 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

Fort Worth, TX (KFWD), launched 12:00Z, 8.3 hours before the alert went out and 120 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, Fort Worth, TX at 12:00Z on 2012-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1946 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2012-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 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
1946 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1089 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

620 
WGUS54 KOUN 062020
FFWOUN
OKC019-085-062315-
/O.NEW.KOUN.FF.W.0007.120606T2020Z-120606T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORMAN OK
320 PM CDT WED JUN 6 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARTER COUNTY IN SOUTHERN OKLAHOMA...
  LOVE COUNTY IN SOUTHERN OKLAHOMA...

* UNTIL 615 PM CDT

* AT 316 PM CDT...NATIONAL WEATHER SERVICE RADAR AND RAIN GAUGES 
  INDICATED THAT HEAVY RAIN WAS FALLING OVER THE AREA. NEARLY TWO 
  INCHES OF RAIN HAS FALLEN NEAR RINGLING BETWEEN 230 AND 315 PM. 
  FLASH FLOODING IS EXPECTED...ESPECIALLY WEST OF INTERSTATE 35. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE
  ARDMORE...LONE GROVE...HEALDTON...WILSON...MARIETTA...THACKERVILLE...
  RATLIFF CITY...LEON...BURNEYVILLE...OVERBROOK...RUBOTTOM...LAKE 
  MURRAY...GRAHAM AND MILO. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE 
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE 
USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS 
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING 
FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 3376 9720 3382 9721 3385 9716 3392 9721
      3382 9737 3383 9746 3391 9747 3391 9755
      3448 9755 3428 9719 3395 9696 3395 9700
      3385 9701 3385 9709 3382 9705 3380 9710
      3372 9711

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 7:49 PM CDTSpecial Weather StatementOUNBryan26 min
Jun 5, 7:58 PM CDTSevere Thunderstorm WarningOUNBryan27 min
Jun 6, 1:21 AM CDTSpecial Weather StatementOUNMurray39 min
Jun 6, 7:23 AM CDTSpecial Weather StatementOUNCotton37 min
Jun 6, 1:43 PM CDTSpecial Weather StatementOUNJefferson32 min
Jun 6, 1:46 PM CDTSpecial Weather StatementOUNDewey29 min
Jun 6, 2:18 PM CDTSpecial Weather StatementOUNCarter, Love, Murray42 min
Jun 6, 2:39 PM CDTSevere Thunderstorm WarningOUNLove66 min
Jun 6, 3:28 PM CDTAreal Flood AdvisoryOUNJefferson, Stephens3 hr
Jun 6, 3:33 PM CDTSpecial Weather StatementOUNCuster, Washita27 min
Jun 6, 3:40 PM CDTSpecial Weather StatementOUNCarter, Garvin, Love, Murray50 min
Jun 6, 4:15 PM CDTAreal Flood AdvisoryOUNBlaine, Caddo, Custer, Washita2 hr

Nearby

Flash Flood Warnings in Oklahoma, 2012Every flash flood warning in 2012

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.