Alert archive / Oklahoma / Flash Flood Warnings in 2012

Flash Flood Warning 15, NWS Tulsa, OK

March 20, 20125 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Mar 20, 2012, 6:16 AM CDT for 5 counties in Oklahoma. It was in force for 8 hr. 7 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 20, 2012, 6:16 AM CDT (11:16 UTC)
Expired: Mar 20, 2012, 2:00 PM CDT
In force: 8 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Craig County, OK, Nowata County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 43 km from the middle of the area, began a volume at 11:15 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.

What was reported inside it

Time	Report	Where	Remark
Mar 20, 7:00 AM CDT	HEAVY RAIN 4.5	8 E Claremore, OK
Mar 20, 8:00 AM CDT	HEAVY RAIN 4.5	3 E Sperry, OK	96TH STREET NORTH AND HIGHWAY 75
Mar 20, 8:25 AM CDT	FLASH FLOOD	3 E Owasso, OK	86TH STREET NORTH AT CENTENNIAL PARK CLOSED DUE TOHIGH WATER
Mar 20, 9:00 AM CDT	HEAVY RAIN 4	Nowata, OK	A LITTLE OVER 4 INCHES AND STILL RAINING.
Mar 20, 10:40 AM CDT	HEAVY RAIN 5.09	Sperry, OK
Mar 20, 12:00 PM CDT	FLASH FLOOD	2 Ssw Inola, OK	640 ROAD TO THE WEST OF 4200 ROAD CLOSED.
Mar 20, 12:00 PM CDT	FLASH FLOOD	7 N Nowata, OK	WATER COVERING THE ROADWAY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.3 hours before the alert went out and 155 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 173 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1207 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 369 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

886 
WGUS54 KTSA 201116
FFWTSA
OKC035-105-131-143-147-201900-
/O.NEW.KTSA.FF.W.0015.120320T1116Z-120320T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
616 AM CDT TUE MAR 20 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL TULSA COUNTY IN NORTHEAST OKLAHOMA...
  NOWATA COUNTY IN NORTHEAST OKLAHOMA...
  ROGERS COUNTY IN NORTHEAST OKLAHOMA...
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA...
  WESTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 200 PM CDT TUESDAY

* AT 614 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 4 INCHES OF RAINFALL       
  HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 3 INCHES POSSIBLE.   

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
  BARTLESVILLE...CLAREMORE...NOWATA...TULSA...CATOOSA...CHELSEA...
  COLLINSVILLE...COPAN...DELAWARE...DEWEY...FOYIL...INOLA...
  LENAPAH...NEW ALLUWE...OCHELATA...OOLOGAH...OWASSO...RAMONA...SOUTH
  COFFEYVILLE...SPERRY...TALALA...TIAWAH...VERA...VERDIGRIS...WANN
  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 3700 9504 3651 9533 3651 9544 3608 9544
      3617 9563 3616 9600 3700 9600

$$

1 follow-up statement

665 
WGUS74 KTSA 201445
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
945 AM CDT TUE MAR 20 2012

OKC035-105-131-143-147-201900-
/O.CON.KTSA.FF.W.0015.000000T0000Z-120320T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAIG OK-NOWATA OK-ROGERS OK-TULSA OK-WASHINGTON OK-
945 AM CDT TUE MAR 20 2012

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WASHINGTON...NORTH
CENTRAL TULSA...ROGERS...NOWATA AND WESTERN CRAIG COUNTIES IN
NORTHEAST OKLAHOMA UNTIL 200 PM CDT...

AT 945 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND A FEW THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED 
AREA. 4 TO 5 INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN 
ADDITIONAL 1 TO 2 INCHES POSSIBLE.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
BARTLESVILLE...CLAREMORE...NOWATA...TULSA...CATOOSA...CHELSEA...
COLLINSVILLE...COPAN...DELAWARE...DEWEY...FOYIL...INOLA...LENAPAH...
NEW ALLUWE...OCHELATA...OOLOGAH...OWASSO...RAMONA...SOUTH
COFFEYVILLE...SPERRY...TALALA...TIAWAH...VERA...VERDIGRIS...WANN 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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TULSA.

&&

LAT...LON 3700 9504 3651 9533 3651 9544 3608 9544
      3617 9563 3616 9600 3700 9600

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 19, 7:10 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	6 hr
Mar 19, 7:16 PM CDT	Tornado Warning	TSA	Haskell, Muskogee	29 min
Mar 19, 7:37 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okmulgee, Pittsburg	23 min
Mar 19, 7:48 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	42 min
Mar 19, 7:56 PM CDT	Tornado Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	34 min
Mar 19, 8:03 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pittsburg, Pushmataha	43 min
Mar 19, 8:21 PM CDT	River Flood Warning	TSA	Choctaw	25 hr
Mar 19, 8:23 PM CDT	River Flood Warning	TSA	Pushmataha	56 hr
Mar 19, 8:29 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Muskogee, Pittsburg, Pushmataha	61 min
Mar 19, 8:32 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	28 min
Mar 19, 8:34 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah	6 hr
Mar 19, 8:51 PM CDT	Tornado Warning	TSA	Adair, Cherokee, Sequoyah	39 min
Mar 19, 9:04 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 2 more	41 min
Mar 19, 9:24 PM CDT	Special Weather Statement	TSA	Delaware	36 min
Mar 19, 9:33 PM CDT	Flash Flood Warning	TSA	Choctaw, Latimer, LeFlore, Pushmataha	6 hr
Mar 19, 9:41 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Haskell, LeFlore, Sequoyah	6 hr
Mar 19, 9:44 PM CDT	Severe Thunderstorm Warning	TSA	Adair, LeFlore, Sequoyah	61 min
Mar 19, 10:54 PM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 2 more	12 hr
Mar 20, 12:49 AM CDT	Areal Flood Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	10 hr
Mar 20, 12:59 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	10 hr
Mar 20, 2:05 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	12 hr
Mar 20, 2:09 AM CDT	Flash Flood Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, Muskogee, Pittsburg and 2 more	12 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Cherokee	24 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Cherokee	12 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	42 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Osage, Tulsa	24 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Tulsa	30 hr
Mar 20, 2:37 AM CDT	River Flood Warning	TSA	Adair	24 hr
Mar 20, 3:06 AM CDT	River Flood Warning	TSA	Nowata	18 hr
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	Ottawa	5 days
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	LeFlore	24 hr
Mar 20, 3:48 AM CDT	River Flood Warning	TSA	LeFlore	3 days
Mar 20, 4:50 AM CDT	River Flood Warning	TSA	Muskogee	22 hr
Mar 20, 8:38 AM CDT	River Flood Advisory	TSA	Cherokee, Delaware	22 hr
Mar 20, 8:51 AM CDT	River Flood Warning	TSA	Ottawa	18 hr
Mar 20, 10:54 AM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 2 more	3 hr
Mar 20, 10:57 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, Pittsburg	3 hr
Mar 20, 11:02 AM CDT	Areal Flood Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	3 hr
Mar 20, 11:13 AM CDT	River Flood Warning	TSA	Sequoyah	16 hr
Mar 20, 1:51 PM CDT	Flash Flood Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, Muskogee, Pittsburg and 2 more	8 hr
Mar 20, 1:55 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	8 hr
Mar 20, 1:59 PM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, McIntosh, Mayes, Muskogee and 2 more	8 hr
Mar 20, 2:04 PM CDT	Areal Flood Warning	TSA	Craig, Creek, Muskogee, Nowata, Okmulgee, Osage and 4 more	32 hr

Nearby

Flash Flood Warnings in Oklahoma, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.