Alert archive / Oklahoma / Flash Flood Warnings in 2016

Flash Flood Warning 8, NWS Tulsa, OK

May 31, 2016Washington County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 31, 2016, 10:52 PM CDT for Washington County, Oklahoma. It was in force for 3 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: May 31, 2016, 10:52 PM CDT (03:52 UTC)
Expired: Jun 1, 2016, 1:45 AM CDT
In force: 3 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

County Washington County, OK

The radar

The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 03:53 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

Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 183 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 481 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1177 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

310 
WGUS54 KTSA 010352
FFWTSA
OKC147-010645-
/O.NEW.KTSA.FF.W.0008.160601T0352Z-160601T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1052 PM CDT TUE MAY 31 2016

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN WASHINGTON COUNTY IN NORTHEASTERN OKLAHOMA...

* UNTIL 145 AM CDT

* AT 1051 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 1 TO 3 INCHES OF RAIN HAVE
  FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...
  BARTLESVILLE...                   DEWEY...
  COPAN...                          

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.

&&

LAT...LON 3700 9579 3694 9579 3694 9581 3674 9581
      3674 9600 3700 9600

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 7:14 PM CDT	Areal Flood Advisory	TSA	Craig, Ottawa	3 hr
May 31, 10:28 PM CDT	Areal Flood Advisory	TSA	Nowata, Washington	3 hr
Jun 1, 1:53 AM CDT	Areal Flood Warning	TSA	Washington	3 hr
Jun 1, 3:09 AM CDT	Flash Flood Watch	TSA	Choctaw, Craig, Creek, Delaware, Mayes, Nowata and 7 more	40 hr
Jun 1, 12:56 PM CDT	Areal Flood Advisory	TSA	Ottawa	3 hr
Jun 1, 1:41 PM CDT	Areal Flood Advisory	TSA	Craig, Nowata, Rogers	3 hr
Jun 1, 2:53 PM CDT	Areal Flood Advisory	TSA	Osage, Tulsa	52 min
Jun 1, 5:14 PM CDT	Special Weather Statement	TSA	Kay	46 min

Nearby

Flash Flood Warnings in Oklahoma, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.