Alert archive / Oklahoma / Flash Flood Warnings in 2017

Flash Flood Warning 52, NWS Tulsa, OK

October 4, 20174 counties in Oklahoma

NWS Tulsa, OK issued this flash flood warning at Oct 4, 2017, 2:54 PM CDT for 4 counties in 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
Oct 4, 2017, 2:54 PM CDT (19:54 UTC)
Expired
Oct 4, 2017, 6:00 PM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Osage County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 43 km from the middle of the area, began a volume at 19:54 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 12:00Z, 7.9 hours before the alert went out and 189 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, Springfield, MO at 12:00Z on 2017-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 175 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, Springfield, MO at 12:00Z on 2017-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 150 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
175 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
758 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
150 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

898 
WGUS54 KTSA 041954
FFWTSA
OKC113-131-143-147-042300-
/O.NEW.KTSA.FF.W.0052.171004T1954Z-171004T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
254 PM CDT WED OCT 4 2017

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Northwestern Rogers County in northeastern Oklahoma...
  East central Osage County in northeastern Oklahoma...
  Southern Washington County in northeastern Oklahoma...
  Northeastern Tulsa County in northeastern Oklahoma...

* Until 600 PM CDT

* At 252 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Three to five inches of rain 
  have fallen. Flash flooding is expected to begin shortly.

* Some locations that may experience flooding include...
  Northeastern Tulsa...             Claremore...
  Owasso...                         Skiatook...
  Catoosa...                        Collinsville...
  Verdigris...                      Sperry...
  Oologah...                        Ramona...
  Ochelata...                       Avant...
  Talala...                         Vera...
  Turley...                         Wolco...

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

This includes Interstate 44 between mile markers 233 and 235, and
between mile markers 239 and 245.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

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

&&

LAT...LON 3666 9581 3660 9581 3660 9571 3625 9563
      3616 9577 3617 9598 3661 9617 3668 9600

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 7:41 AM CDTAreal Flood AdvisoryTSACreek, Osage, Pawnee, Tulsa3 hr
Oct 4, 9:35 AM CDTFlash Flood WarningTSAOsage, Pawnee3 hr
Oct 4, 12:29 PM CDTFlash Flood WarningTSAOsage, Pawnee6 hr
Oct 4, 12:35 PM CDTAreal Flood AdvisoryTSAOsage, Pawnee4 hr
Oct 4, 4:18 PM CDTAreal Flood AdvisoryTSACreek, Rogers, Tulsa, Wagoner3 hr
Oct 4, 4:44 PM CDTRiver Flood WarningTSAPawnee38 hr
Oct 4, 5:10 PM CDTRiver Flood WarningTSAOsage8 hr
Oct 4, 5:51 PM CDTFlash Flood WarningTSAOsage, Rogers, Tulsa, Washington3 hr
Oct 4, 6:25 PM CDTAreal Flood WarningTSAOsage, Pawnee12 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.