Alert archive / Oklahoma / Flash Flood Warnings in 2021

Flash Flood Warning 35, NWS Tulsa, OK

June 8, 2021Choctaw County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Jun 8, 2021, 6:18 AM CDT for Choctaw County, Pushmataha 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 8, 2021, 6:18 AM CDT (11:18 UTC)
Expired
Jun 8, 2021, 9:50 AM CDT
In force
4 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Choctaw County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 167 km from the middle of the area, began a volume at 11:18 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

Fort Worth, TX (KFWD), launched 00:00Z, 11.3 hours before the alert went out and 225 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 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 488 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, Fort Worth, TX at 00:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
488 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1123 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

334 
WGUS54 KTSA 081118
FFWTSA
OKC023-127-081500-
/O.NEW.KTSA.FF.W.0035.210608T1118Z-210608T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
618 AM CDT Tue Jun 8 2021

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Eastern Choctaw County in southeastern Oklahoma...
  Southeastern Pushmataha County in southeastern Oklahoma...

* Until 1000 AM CDT.

* At 618 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 5 inches of rain 
  have fallen. Flash flooding is ongoing across southeast Pushmataha 
  and eastern Choctaw counties with several secondary roads likely 
  impassable due to high water.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar indicated.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Hugo...                            Fort Towson...
  Sawyer...                          Rattan...
  Oleta...                           Cloudy...
  Hugo Lake State Park...            Messer...
  Snow...                            Raymond Gary State Park...
  Nashoba...                         Grant...
  Corinne...                         Sobol...
  Apple...                           Dela...
  Finley...                          Swink...
  Fallon...                          Huskey...

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. Please report flooding to your local law 
enforcement agency when you can do so safely.

&&

LAT...LON 3418 9553 3451 9545 3450 9505 3424 9505
      3424 9515 3394 9516 3396 9523 3393 9525
      3390 9525 3389 9527 3390 9527 3390 9528
      3386 9529 3389 9533 3386 9535 3386 9546
      3389 9546 3388 9551 3389 9551 3389 9552

FLASH FLOOD...RADAR INDICATED

$$

RBD
1 follow-up statement
097 
WGUS74 KTSA 081450
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
950 AM CDT Tue Jun 8 2021

OKC023-127-081500-
/O.CAN.KTSA.FF.W.0035.000000T0000Z-210608T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw OK-Pushmataha OK-
950 AM CDT Tue Jun 8 2021

...FLASH FLOOD WARNING FOR EASTERN CHOCTAW AND SOUTHEASTERN 
PUSHMATAHA COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

LAT...LON 3418 9553 3451 9545 3450 9505 3424 9505
      3424 9515 3394 9516 3396 9523 3393 9525
      3390 9525 3389 9527 3390 9527 3390 9528
      3386 9529 3389 9533 3386 9535 3386 9546
      3389 9546 3388 9551 3389 9551 3389 9552

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 7:18 PM CDTAreal Flood AdvisoryTSALeFlore3 hr
Jun 8, 3:04 AM CDTAreal Flood AdvisoryTSAChoctaw, Pushmataha3 hr
Jun 8, 3:20 AM CDTFlash Flood WarningTSAChoctaw, Pushmataha3 hr
Jun 8, 7:49 AM CDTAreal Flood AdvisoryTSAHaskell, Latimer, LeFlore, Pittsburg3 hr
Jun 8, 8:48 AM CDTFlash Flood WarningTSAHaskell, Latimer, LeFlore, Pittsburg4 hr
Jun 8, 9:50 AM CDTAreal Flood WarningTSAChoctaw, Pushmataha11 hr
Jun 8, 12:43 PM CDTAreal Flood WarningTSALatimer, LeFlore6 hr

Nearby

Flash Flood Warnings in Oklahoma, 2021Every flash flood warning in 2021

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.