Alert archive / Oklahoma / Flash Flood Warnings in 2017

Flash Flood Warning 1, NWS Tulsa, OK

March 29, 2017Creek County, Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Mar 29, 2017, 2:12 AM CDT for Creek County, Osage County, Pawnee County, Oklahoma. It was in force for 6 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
Mar 29, 2017, 2:12 AM CDT (07:12 UTC)
Expired
Mar 29, 2017, 8:15 AM CDT
In force
6 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Creek County, OK, Osage County, OK, Pawnee County, OK

The radar

The Tulsa radar (KINX), 61 km from the middle of the area, began a volume at 07:12 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

Norman, OK (KOUN), launched 00:00Z, 7.2 hours before the alert went out and 152 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, Norman, OK at 00:00Z on 2017-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 307 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, Norman, OK at 00:00Z on 2017-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 287 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
307 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
763 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
287 m²/s²
0-3 km storm-relative helicity
385 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.7

Open this sounding in Storm Lab

The text

As transmitted.

685 
WGUS54 KTSA 290712
FFWTSA
OKC037-113-117-291315-
/O.NEW.KTSA.FF.W.0001.170329T0712Z-170329T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
212 AM CDT WED MAR 29 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Southeastern Osage County in northeastern Oklahoma...
  Northwestern Creek County in northeastern Oklahoma...
  Southeastern Pawnee County in northeastern Oklahoma...

* Until 815 AM CDT Wednesday

* At 209 AM CDT, Doppler radar detected a band of training 
  thunderstorms producing heavy rain across the warned area. Radar 
  estimates that between 3 and 4 inches of rain has fallen since 
  midnight. Flash flooding could occur shortly.

* Some locations that may experience flooding include...
  Northwestern Tulsa...             Sand Springs...
  Skiatook...                       Cleveland...
  Mannford...                       Drumright...
  Sperry...                         Oilton...
  Jennings...                       Avant...
  Westport...                       Osage...
  Hallett...                        Terlton...
  Shamrock...                       Walnut Creek State Park...
  Silver City...                    Wolco...

The rainfall is starting to let up over portions of the warned area. 
However, another band of thunderstorms is approaching from the 
southwest. Any additional rains will likely become runoff and cause 
more flooding.

This includes Interstate 44 between mile markers 178 and 181.
 
LAT...LON 3663 9600 3624 9600 3616 9610 3616 9630
      3608 9630 3607 9621 3575 9662 3620 9663

$$

Lacy
2 follow-up statements
344 
WGUS74 KTSA 290826
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
326 AM CDT WED MAR 29 2017

OKC037-113-117-291315-
/O.CON.KTSA.FF.W.0001.000000T0000Z-170329T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage OK-Creek OK-Pawnee OK-
326 AM CDT WED MAR 29 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 AM CDT FOR
SOUTHEASTERN OSAGE...NORTHWESTERN CREEK AND SOUTHEASTERN PAWNEE
COUNTIES...

At 322 AM CDT, Doppler radar detected no rain occurring across the 
warned area. However, radar estimates that between 2 and 4 inches of 
rain has fallen since midnight, and more rainfall is expected to 
resume as another round of storms approaches from the south. Any 
additional rainfall could cause additional flash flooding.

Some locations that may experience flooding include...
Northwestern Tulsa...             Sand Springs...
Skiatook...                       Cleveland...
Mannford...                       Drumright...
Sperry...                         Oilton...
Jennings...                       Avant...
Westport...                       Osage...
Hallett...                        Terlton...
Shamrock...                       Walnut Creek State Park...
Silver City...                    Wolco...

Another round of storms is approaching the warned area from the 
south. Any additional rainfall will likely become runoff due to the 
heavy rains that fell earlier in the night. This could cause more 
flooding.

This includes Interstate 44 between mile markers 178 and 181.
 
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 3663 9600 3624 9600 3616 9610 3616 9630
      3608 9630 3607 9621 3575 9662 3620 9663

$$

Lacy
065 
WGUS74 KTSA 291305
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
805 AM CDT WED MAR 29 2017

OKC037-113-117-291315-
/O.EXP.KTSA.FF.W.0001.000000T0000Z-170329T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage OK-Creek OK-Pawnee OK-
805 AM CDT WED MAR 29 2017

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN OSAGE...NORTHWESTERN
CREEK AND SOUTHEASTERN PAWNEE COUNTIES WILL EXPIRE AT 815 AM CDT...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3663 9600 3624 9600 3616 9610 3616 9630
      3608 9630 3607 9621 3575 9662 3620 9663

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 10:31 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee44 min
Mar 28, 11:01 PM CDTSpecial Weather StatementTSACreek44 min
Mar 28, 11:10 PM CDTSpecial Weather StatementTSAOsage50 min
Mar 28, 11:36 PM CDTSpecial Weather StatementTSATulsa39 min
Mar 28, 11:54 PM CDTSpecial Weather StatementTSAOsage51 min
Mar 29, 12:12 AM CDTSpecial Weather StatementTSAWashington48 min
Mar 29, 12:26 AM CDTAreal Flood AdvisoryTSACreek, Pawnee4 hr
Mar 29, 12:51 AM CDTSpecial Weather StatementTSACraig, Nowata54 min
Mar 29, 12:58 AM CDTAreal Flood AdvisoryTSAOsage4 hr
Mar 29, 1:41 AM CDTAreal Flood AdvisoryTSACreek, Nowata, Osage, Rogers, Tulsa, Washington4 hr
Mar 29, 1:49 AM CDTSpecial Weather StatementTSACraig26 min
Mar 29, 2:16 AM CDTSpecial Weather StatementTSAOttawa29 min
Mar 29, 3:56 AM CDTSpecial Weather StatementTSAChoctaw49 min
Mar 29, 4:39 AM CDTSpecial Weather StatementTSAPittsburg51 min
Mar 29, 4:42 AM CDTSpecial Weather StatementTSAChoctaw, Pushmataha48 min
Mar 29, 5:32 AM CDTSpecial Weather StatementTSAHaskell, Latimer, McIntosh, Muskogee, Okmulgee, Pittsburg and 1 more43 min
Mar 29, 6:07 AM CDTSpecial Weather StatementTSAMuskogee, Rogers, Tulsa, Wagoner38 min
Mar 29, 6:08 AM CDTSpecial Weather StatementTSAHaskell, Latimer, LeFlore, Sequoyah52 min
Mar 29, 6:53 AM CDTSpecial Weather StatementTSASequoyah37 min
Mar 29, 7:09 AM CDTSpecial Weather StatementTSAAdair, Cherokee, Delaware, Mayes36 min
Mar 29, 4:40 PM CDTSpecial Weather StatementTSATulsa35 min
Mar 29, 5:05 PM CDTSpecial Weather StatementTSARogers25 min
Mar 29, 5:14 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers46 min
Mar 29, 5:48 PM CDTSpecial Weather StatementTSACraig27 min
Mar 29, 6:14 PM CDTSpecial Weather StatementTSACraig31 min
Mar 29, 6:40 PM CDTSpecial Weather StatementTSAOttawa20 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.