Alert archive / Oklahoma / Flash Flood Warnings in 2015

Flash Flood Warning 82, NWS Tulsa, OK

June 12, 2015Nowata County, Rogers County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 12, 2015, 6:57 PM CDT for Nowata County, Rogers County, Oklahoma. It was in force for 4 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 12, 2015, 6:57 PM CDT (23:57 UTC)
Expired
Jun 12, 2015, 11:00 PM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Nowata County, OK, Rogers County, OK

The radar

The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 23:57 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

Springfield, MO (KSGF), launched 12:00Z, 12.0 hours before the alert went out and 173 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, Springfield, MO at 12:00Z on 2015-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1078 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, Springfield, MO at 12:00Z on 2015-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
1078 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
878 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
148 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.

578 
WGUS54 KTSA 122357
FFWTSA
OKC105-131-130400-
/O.NEW.KTSA.FF.W.0082.150612T2357Z-150613T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
657 PM CDT FRI JUN 12 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA...
  SOUTHERN NOWATA COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 1100 PM CDT

* AT 655 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. RAIN RATES 
NEAR 2 INCHES PER HOUR ARE POSSIBLE ALONG THE LINE OF TRAINING 
THUNDERSTORMS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...NEW
  ALLUWE...TALALA AND WATOVA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

&&

LAT...LON 3660 9543 3640 9579 3642 9580 3642 9582
      3660 9581 3667 9569

$$

LACY
1 follow-up statement
755 
WGUS74 KTSA 130126
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
826 PM CDT FRI JUN 12 2015

OKC105-131-130400-
/O.CON.KTSA.FF.W.0082.000000T0000Z-150613T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NOWATA OK-ROGERS OK-
826 PM CDT FRI JUN 12 2015

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN ROGERS AND
SOUTHERN NOWATA COUNTIES UNTIL 1100 PM CDT...

AT 825 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE HEAVY RAINFALL HAD ENDED ACROSS THE WARNED AREA. RADAR ESTIMATES 
THAT BETWEEN 2 AND 4 INCHES OF RAIN HAS ALREADY FALLEN AND FLOODING 
OF LOW LYING AREAS WILL LIKELY CONTINUE. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
NEW ALLUWE...OOLOGAH...TALALA AND WATOVA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.

&&

LAT...LON 3660 9543 3640 9579 3642 9580 3642 9582
      3660 9581 3667 9569

$$

LACY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:20 PM CDTFlash Flood WatchTSACraig, Creek, Nowata, Ottawa, Pawnee, Rogers and 2 more36 hr
Jun 12, 4:15 PM CDTSpecial Weather StatementTSACraig30 min
Jun 12, 4:37 PM CDTAreal Flood AdvisoryTSACraig, Nowata113 min
Jun 12, 4:40 PM CDTSpecial Weather StatementTSANowata35 min
Jun 12, 4:48 PM CDTSpecial Weather StatementTSACraig27 min
Jun 12, 5:11 PM CDTSpecial Weather StatementTSANowata34 min
Jun 12, 5:17 PM CDTFlash Flood WarningTSANowata4 hr
Jun 12, 5:25 PM CDTSevere Thunderstorm WarningTSANowata30 min
Jun 12, 5:45 PM CDTSpecial Weather StatementTSACraig30 min
Jun 12, 5:56 PM CDTSpecial Weather StatementTSACraig34 min
Jun 12, 6:11 PM CDTSpecial Weather StatementTSAOsage34 min
Jun 12, 6:18 PM CDTSpecial Weather StatementTSANowata27 min
Jun 12, 6:21 PM CDTSevere Thunderstorm WarningTSANowata, Rogers26 min
Jun 12, 6:26 PM CDTAreal Flood AdvisoryTSACraig, Nowata, Ottawa2 hr
Jun 12, 6:35 PM CDTFlash Flood WarningTSACraig4 hr

Nearby

Flash Flood Warnings in Oklahoma, 2015Every flash flood warning in 2015

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.