Alert archive / Oklahoma / Flash Flood Warnings in 2017

Flash Flood Warning 49, NWS Tulsa, OK

August 22, 2017Latimer County, Pittsburg County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Aug 22, 2017, 8:41 PM CDT for Latimer County, Pittsburg County, Pushmataha 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
Aug 22, 2017, 8:41 PM CDT (01:41 UTC)
Expired
Aug 23, 2017, 2:45 AM CDT
In force
6 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 117 km from the middle of the area, began a volume at 01:45 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, 1.7 hours before the alert went out and 177 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 2017-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1764 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, Norman, OK at 00:00Z on 2017-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
1764 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1641 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

158 
WGUS54 KTSA 230141
FFWTSA
OKC077-121-127-230745-
/O.NEW.KTSA.FF.W.0049.170823T0141Z-170823T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
841 PM CDT TUE AUG 22 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Northeastern Pushmataha County in southeastern Oklahoma...
  Latimer County in southeastern Oklahoma...
  Southeastern Pittsburg County in southeastern Oklahoma...

* Until 245 AM CDT Wednesday

* At 840 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Two to three inches of rain 
  have fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Mcalester...                      Wilburton...
  Hartshorne...                     Krebs...
  Red Oak...                        Alderson...
  Albion...                         Damon...
  Higgins...                        Bengal...
  Tuskahoma...                      Yanush...
  Kiamichi...                       Blanco...
  Haileyville...                    Sardis...
  Gowen...                          Panola...
  Dow...                            Bache...

Additional rainfall amounts of one to two 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.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3496 9582 3496 9506 3456 9506 3469 9584

$$

69
1 follow-up statement
284 
WGUS74 KTSA 230632
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
132 AM CDT WED AUG 23 2017

OKC077-121-127-230745-
/O.CON.KTSA.FF.W.0049.000000T0000Z-170823T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha OK-Latimer OK-Pittsburg OK-
132 AM CDT WED AUG 23 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR
NORTHEASTERN PUSHMATAHA...LATIMER AND SOUTHEASTERN PITTSBURG
COUNTIES...

At 128 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain are moving out of the area. However...2 to 4 inches of rain 
have fallen across the warned area and flash flooding is likely 
occurring.

Some locations that may experience flooding include...
Mcalester...                      Wilburton...
Hartshorne...                     Krebs...
Red Oak...                        Alderson...
Albion...                         Damon...
Higgins...                        Bengal...
Tuskahoma...                      Yanush...
Kiamichi...                       Blanco...
Haileyville...                    Sardis...
Gowen...                          Panola...
Dow...                            Bache...

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.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3496 9582 3496 9506 3456 9506 3469 9584

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 7:13 PM CDTSpecial Weather StatementTSALatimer, Pittsburg62 min
Aug 22, 8:35 PM CDTSpecial Weather StatementTSALatimer, Pittsburg55 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.