Alert archive / Oklahoma / Flash Flood Warnings in 2016

Flash Flood Warning 1, NWS Tulsa, OK

May 12, 20164 counties in Oklahoma; Crawford County, Washington County, Arkansas

NWS Tulsa, OK issued this flash flood warning at May 12, 2016, 12:20 AM CDT for 4 counties in Oklahoma; Crawford County, Washington County, Arkansas. It was in force for 3 hr. 2 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
May 12, 2016, 12:20 AM CDT (05:20 UTC)
Expired
May 12, 2016, 3:45 AM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Crawford County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Muskogee County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 63 km from the middle of the area, began a volume at 05:19 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

TimeReportWhereRemark
May 12, 1:30 AM CDTFLASH FLOODCookson, OKWATER RESCUE IN SE CHEROKEE COUNTY. COOKSON FD ON SCENE.
May 12, 3:00 AM CDTFLASH FLOOD1 Nw Bunch, OKWIDESPREAD FLOODING. PEA SIZE HAIL ALSO REPORTED.

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, 5.3 hours before the alert went out and 161 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 00:00Z on 2016-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1205 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 00:00Z on 2016-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
1205 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

887 
WGUS54 KTSA 120520
FFWTSA
ARC033-143-OKC001-021-101-135-120545-
/O.NEW.KTSA.FF.W.0001.160512T0520Z-160512T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1220 AM CDT THU MAY 12 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CRAWFORD COUNTY IN NORTHWESTERN ARKANSAS...
  SOUTHWESTERN WASHINGTON COUNTY IN NORTHWESTERN ARKANSAS...
  NORTHWESTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHEASTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...
  NORTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHERN ADAIR COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 1245 AM CDT

* AT 1218 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  STILWELL...                       BRAGGS...
  BUNCH...                          COOKSON...
  ADAIR STATE PARK...               STRICKLER...
  MARYETTA...                       LAKE TENKILLER STATE PARK...
  CHEROKEE LANDING STATE PARK...    PUMPKIN CENTER...
  GREENLEAF STATE PARK...           MORROW...
  ODELL...                          CLYDE...
  CANEHILL...                       

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST
FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3556 9512 3577 9528 3594 9434 3572 9427

$$
3 follow-up statements
912 
WGUS54 KTSA 120525
FFWTSA
ARC033-143-OKC001-021-101-135-120845-
/O.EXT.KTSA.FF.W.0001.000000T0000Z-160512T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1225 AM CDT THU MAY 12 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CRAWFORD COUNTY IN NORTHWESTERN ARKANSAS...
  SOUTHWESTERN WASHINGTON COUNTY IN NORTHWESTERN ARKANSAS...
  NORTHWESTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHEASTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...
  NORTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHERN ADAIR COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 345 AM CDT

* AT 1224 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  STILWELL...                       BRAGGS...
  BUNCH...                          COOKSON...
  ADAIR STATE PARK...               STRICKLER...
  MARYETTA...                       LAKE TENKILLER STATE PARK...
  CHEROKEE LANDING STATE PARK...    PUMPKIN CENTER...
  GREENLEAF STATE PARK...           MORROW...
  ODELL...                          CLYDE...
  CANEHILL...                       

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST
FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3556 9512 3577 9528 3594 9434 3572 9427

$$
124 
WGUS74 KTSA 120612
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
112 AM CDT THU MAY 12 2016

ARC033-143-OKC001-021-101-135-120845-
/O.CON.KTSA.FF.W.0001.000000T0000Z-160512T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD AR-WASHINGTON AR-SEQUOYAH OK-CHEROKEE OK-MUSKOGEE OK-
ADAIR OK-
112 AM CDT THU MAY 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR
NORTHWESTERN CRAWFORD...SOUTHWESTERN WASHINGTON...NORTHWESTERN
SEQUOYAH...SOUTHEASTERN CHEROKEE...NORTHEASTERN MUSKOGEE AND SOUTHERN
ADAIR COUNTIES...

AT 109 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. 3 TO 4 INCHES OF RAIN HAVE
FALLEN. SIGNIFICANT FLASH FLOODING IS LIKELY OCCURRING IN SOUTHERN
CHEROKEE COUNTY NEAR THE COOKSON AREA. 

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
STILWELL...                       BRAGGS...
BUNCH...                          COOKSON...
ADAIR STATE PARK...               STRICKLER...
MARYETTA...                       LAKE TENKILLER STATE PARK...
CHEROKEE LANDING STATE PARK...    PUMPKIN CENTER...
GREENLEAF STATE PARK...           MORROW...
ODELL...                          CLYDE...
CANEHILL...                       

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3556 9512 3577 9528 3594 9434 3572 9427

$$
877 
WGUS74 KTSA 120704
FFSTSA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
204 AM CDT THU MAY 12 2016

ARC033-143-OKC001-021-101-135-120845-
/O.CON.KTSA.FF.W.0001.000000T0000Z-160512T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD AR-WASHINGTON AR-SEQUOYAH OK-CHEROKEE OK-MUSKOGEE OK-
ADAIR OK-
204 AM CDT THU MAY 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM CDT FOR
NORTHWESTERN CRAWFORD...SOUTHWESTERN WASHINGTON...NORTHWESTERN
SEQUOYAH...SOUTHEASTERN CHEROKEE...NORTHEASTERN MUSKOGEE AND SOUTHERN
ADAIR COUNTIES...

AT 200 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. 6 INCHES OF RAIN HAVE FALLEN OVER
SOUTHERN PORTIONS OF CHEROKEE AND ADAIR COUNTIES AND DANGEROUS LIFE
THREATENING FLASH FLOODING IS OCCURRING.  THERE HAVE BEEN REPORTS OF
SWIFT WATER RESCUES IN THE COOKSON AREA. 

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
STILWELL...                       BRAGGS...
BUNCH...                          COOKSON...
ADAIR STATE PARK...               STRICKLER...
MARYETTA...                       LAKE TENKILLER STATE PARK...
CHEROKEE LANDING STATE PARK...    PUMPKIN CENTER...
GREENLEAF STATE PARK...           MORROW...
ODELL...                          CLYDE...
CANEHILL...                       

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3556 9512 3577 9528 3594 9434 3572 9427

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 9:32 PM CDTSpecial Weather StatementTSASequoyah28 min
May 11, 9:51 PM CDTSpecial Weather StatementTSASequoyah24 min
May 11, 10:21 PM CDTSpecial Weather StatementTSACherokee24 min
May 11, 10:49 PM CDTSpecial Weather StatementTSACherokee26 min
May 11, 11:01 PM CDTSpecial Weather StatementTSASequoyah29 min
May 11, 11:09 PM CDTSpecial Weather StatementTSAAdair36 min
May 11, 11:30 PM CDTSpecial Weather StatementTSASequoyah30 min
May 11, 11:32 PM CDTSpecial Weather StatementTSAAdair28 min
May 11, 11:40 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Muskogee65 min
May 12, 12:34 AM CDTSpecial Weather StatementTSAMcIntosh26 min
May 12, 12:43 AM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Sequoyah47 min
May 12, 1:28 AM CDTSpecial Weather StatementTSASequoyah32 min
May 12, 1:53 AM CDTSpecial Weather StatementTSADelaware37 min
May 12, 2:14 AM CDTSpecial Weather StatementTSAHaskell, Pittsburg, Sequoyah31 min
May 12, 2:16 AM CDTSpecial Weather StatementTSADelaware44 min
May 12, 2:33 AM CDTSevere Thunderstorm WarningTSASequoyah27 min
May 12, 2:39 AM CDTSpecial Weather StatementTSAPittsburg36 min
May 12, 2:42 AM CDTSpecial Weather StatementTSAHaskell33 min
May 12, 2:55 AM CDTSevere Thunderstorm WarningTSASequoyah35 min
May 12, 2:58 AM CDTSevere Thunderstorm WarningTSAPittsburg32 min
May 12, 3:11 AM CDTSpecial Weather StatementTSAHaskell, Pittsburg34 min
May 12, 3:17 AM CDTAreal Flood WarningTSAAdair, Cherokee, Muskogee, Sequoyah12 hr
May 12, 3:21 AM CDTSevere Thunderstorm WarningTSASequoyah14 min
May 12, 3:26 AM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, LeFlore, Pittsburg, Pushmataha, Sequoyah64 min
May 12, 4:05 AM CDTSevere Thunderstorm WarningTSALeFlore40 min
May 12, 4:25 AM CDTSpecial Weather StatementTSAPushmataha50 min
May 12, 3:47 PM CDTRiver Flood WarningTSALeFlore25 hr
May 11, 9:41 PM CDTSpecial Weather StatementTSAWashington34 min
May 11, 9:58 PM CDTSpecial Weather StatementTSAWashington32 min
May 11, 10:07 PM CDTSpecial Weather StatementTSACrawford23 min
May 11, 10:27 PM CDTSpecial Weather StatementTSACrawford33 min
May 11, 10:40 PM CDTSpecial Weather StatementTSAWashington35 min
May 11, 11:08 PM CDTSpecial Weather StatementTSAMadison37 min
May 12, 12:15 AM CDTSpecial Weather StatementTSASebastian30 min
May 12, 12:18 AM CDTSpecial Weather StatementTSABenton27 min
May 12, 1:34 AM CDTSpecial Weather StatementTSAMadison26 min
May 12, 1:50 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin25 min
May 12, 2:05 AM CDTSpecial Weather StatementTSAFranklin25 min
May 12, 2:27 AM CDTSpecial Weather StatementTSAFranklin33 min
May 12, 3:16 AM CDTSpecial Weather StatementTSASebastian29 min

Nearby

Flash Flood Warnings in Oklahoma, 2016Flash Flood Warnings in Arkansas, 2016Every flash flood warning in 2016

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.