Alert archive / Oklahoma / Flash Flood Warnings in 2017

Flash Flood Warning 18, NWS Tulsa, OK

April 29, 20176 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Apr 29, 2017, 8:04 PM CDT for 6 counties in Oklahoma. It was in force for 4 hr. 5 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
Apr 29, 2017, 8:04 PM CDT (01:04 UTC)
Expired
Apr 30, 2017, 12:00 AM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Creek County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Tulsa County, OK

The radar

The Tulsa radar (KINX), 69 km from the middle of the area, began a volume at 01:07 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
Apr 29, 8:29 PM CDTFLASH FLOOD4 Ne Tulsa, OK4 INCHES OF RUNNING WATER IN STREETS
Apr 29, 9:30 PM CDTFLASH FLOODTulsa, OK86TH SREET NORTH BETWEEN SHERIDAN AND YALE IS CLOSED DUE TO FLOODING
Apr 29, 10:24 PM CDTFLASH FLOODSchulter, OKCHERRY ROAD IN SCHULTER ROAD CLOSED DUE TO HIGH WATER
Apr 29, 10:54 PM CDTFLASH FLOODOkmulgee, OKBIXBY RD CLOSED BETWEEN ADAMS RD AND FERGUSON RD DUE TO HIGH WATER. SNAKE CREEK IS OUT OF ITS BANKS.
Apr 29, 11:00 PM CDTFLASH FLOODOwasso, OK106TH ST IMPASSABLE DUE TO WATER BETWEEN 161 ST EAST AVE AND 193 EAST AVE. 193 EAST AVE FLOODED NORTH OF 106TH ST.

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

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.1 hours before the alert went out and 341 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 00:00Z on 2017-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2017-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
13.3

Open this sounding in Storm Lab

The text

As transmitted.

837 
WGUS54 KTSA 300104
FFWTSA
OKC037-107-111-113-117-143-300500-
/O.NEW.KTSA.FF.W.0018.170430T0104Z-170430T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
804 PM CDT SAT APR 29 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Southeastern Osage County in northeastern Oklahoma...
  Creek County in northeastern Oklahoma...
  Southeastern Pawnee County in northeastern Oklahoma...
  Okmulgee County in northeastern Oklahoma...
  Tulsa County in northeastern Oklahoma...
  Okfuskee County in east central Oklahoma...

* Until midnight CDT

* At 803 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 1 to 3 inches of rain have 
  fallen today. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Tulsa...                          Broken Arrow...
  Sand Springs...                   Okmulgee...
  Bristow...                        Okemah...
  Owasso...                         Bixby...
  Sapulpa...                        Jenks...
  Okfuskee...                       Glenpool...
  Skiatook...                       Catoosa...
  Henryetta...                      Collinsville...
  Mannford...                       Drumright...
  Kiefer...                         Morris...

Additional rainfall amounts of 1 to 2 inches are possible in the 
warned area.

This includes the following highways,
 Interstate 40 in Oklahoma between mile markers 212 and 244.
 Interstate 44 between mile markers 178 and 232.

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.

&&

LAT...LON 3615 9662 3643 9600 3642 9580 3616 9581
      3616 9577 3590 9576 3590 9582 3586 9582
      3585 9577 3559 9572 3555 9582 3538 9588
      3537 9598 3529 9598 3529 9644 3546 9644
      3543 9650 3545 9655 3539 9654 3540 9662

$$
1 follow-up statement
056 
WGUS74 KTSA 300321
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
1021 PM CDT SAT APR 29 2017

OKC037-107-111-113-117-143-300500-
/O.CON.KTSA.FF.W.0018.000000T0000Z-170430T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage OK-Creek OK-Pawnee OK-Okmulgee OK-Tulsa OK-Okfuskee OK-
1021 PM CDT SAT APR 29 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTHEASTERN OSAGE...CREEK...SOUTHEASTERN PAWNEE...OKMULGEE...TULSA
AND OKFUSKEE COUNTIES...

At 1020 PM CDT, Doppler radar indicated that much of the rain has 
ended across the warned area. 2 to 4 inches of rain have fallen 
today and flash flooding is likely continuing.

Some locations that may experience flooding include...
Tulsa...                          Broken Arrow...
Sand Springs...                   Okmulgee...
Bristow...                        Okemah...
Owasso...                         Bixby...
Sapulpa...                        Jenks...
Okfuskee...                       Glenpool...
Skiatook...                       Catoosa...
Henryetta...                      Collinsville...
Mannford...                       Drumright...
Kiefer...                         Morris...

This includes the following highways,
 Interstate 40 in Oklahoma between mile markers 212 and 244.
 Interstate 44 between mile markers 178 and 232.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 3615 9662 3643 9600 3642 9580 3616 9581
      3616 9577 3590 9576 3590 9582 3586 9582
      3585 9577 3559 9572 3555 9582 3538 9588
      3537 9598 3529 9598 3529 9644 3546 9644
      3543 9650 3545 9655 3539 9654 3540 9662

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 7:10 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Muskogee, Pittsburg35 min
Apr 29, 7:12 PM CDTSpecial Weather StatementTSACherokee48 min
Apr 29, 7:32 PM CDTSpecial Weather StatementTSAHaskell, Muskogee28 min
Apr 29, 7:39 PM CDTSpecial Weather StatementTSANowata51 min
Apr 29, 7:45 PM CDTSpecial Weather StatementTSAMcIntosh30 min
Apr 29, 7:54 PM CDTSpecial Weather StatementTSAMuskogee36 min
Apr 29, 8:04 PM CDTSpecial Weather StatementTSAOkfuskee26 min
Apr 29, 8:07 PM CDTSpecial Weather StatementTSAOkmulgee23 min
Apr 29, 8:20 PM CDTSpecial Weather StatementTSAWagoner25 min
Apr 29, 9:13 PM CDTSpecial Weather StatementTSALeFlore32 min
Apr 29, 9:42 PM CDTSpecial Weather StatementTSAChoctaw18 min
Apr 29, 11:09 PM CDTAreal Flood WarningTSACreek, Okfuskee, Okmulgee, Osage, Pawnee, Tulsa36 hr
Apr 29, 11:17 PM CDTAreal Flood WarningTSAHaskell, McIntosh, Muskogee, Pittsburg, Sequoyah36 hr
Apr 29, 11:25 PM CDTAreal Flood WarningTSAAdair, Cherokee, Craig, Delaware, Mayes, Muskogee and 4 more36 hr
Apr 30, 3:02 AM CDTRiver Flood WarningTSANowata53 hr
Apr 30, 4:11 AM CDTWind AdvisoryTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more17 hr
Apr 30, 7:35 AM CDTFlash Flood WarningTSADelaware, Mayes4 days
Apr 30, 7:46 AM CDTFlash Flood WarningTSAMayes5 days
Apr 30, 10:40 AM CDTRiver Flood WarningTSACherokee, Delaware11 hr

Nearby

Flash Flood Warnings in Oklahoma, 2017Every flash flood warning in 2017

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.