Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 39, NWS Tulsa, OK

May 24, 2019Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at May 24, 2019, 8:37 AM CDT for Osage County, Pawnee 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 24, 2019, 8:37 AM CDT (13:37 UTC)
Expired
May 24, 2019, 11:30 AM CDT
In force
3 hr
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Flood severity
None

Counties Osage County, OK, Pawnee County, OK

The radar

The Vance AFB radar (KVNX), 117 km from the middle of the area, began a volume at 13:41 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 12:00Z, 1.6 hours before the alert went out and 163 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 12:00Z on 2019-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1636 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 12:00Z on 2019-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 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
1636 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
669 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
2.6
Supercell composite
13.5

Open this sounding in Storm Lab

The text

As transmitted.

900 
WGUS54 KTSA 241337
FFWTSA
OKC113-117-241630-
/O.NEW.KTSA.FF.W.0039.190524T1337Z-190524T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
837 AM CDT Fri May 24 2019

The National Weather Service in Tulsa has issued a

* Flash Flood Warning for...
  Northern Osage County in northeastern Oklahoma...
  Western Pawnee County in northeastern Oklahoma...

* Until 1130 AM CDT.

* At 836 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain moving into the warned area. A quick one to two inches 
  of rain is possible, which could lead to flash flooding on already 
  saturated soils. 

* Some locations that may experience flooding include...
  Pawhuska...                       Pawnee...
  Fairfax...                        Shidler...
  Ralston...                        Burbank...
  Elgin...                          Skedee...
  Grainola...                       Foraker...
  Bigheart...                       Pearsonia...
  Sunset Lake...                    Sooner Lake...
  Southern Kaw Lake...              Webb City...
  Wah Sha She State Park...         Apperson...

LAT...LON 3700 9601 3616 9682 3624 9682 3625 9692
      3633 9693 3634 9703 3651 9703 3655 9690
      3658 9689 3660 9692 3659 9705 3668 9706
      3670 9703 3668 9694 3675 9689 3674 9683
      3677 9682 3678 9675 3700 9675

$$

Lacy
1 follow-up statement
510 
WGUS74 KTSA 241434
FFSTSA

Flash Flood Statement
National Weather Service Tulsa OK
934 AM CDT Fri May 24 2019

OKC113-117-241630-
/O.CON.KTSA.FF.W.0039.000000T0000Z-190524T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Osage OK-Pawnee OK-
934 AM CDT Fri May 24 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT FOR
NORTHERN OSAGE AND WESTERN PAWNEE COUNTIES...

At 932 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. The Burbank Mesonet reported .78 inches 
of rain over the past hour. Flash flooding remains possible.

Some locations that may experience flooding include...
Pawhuska...                       Pawnee...
Fairfax...                        Shidler...
Ralston...                        Burbank...
Elgin...                          Skedee...
Grainola...                       Foraker...
Bigheart...                       Pearsonia...
Sunset Lake...                    Sooner Lake...
Southern Kaw Lake...              Webb City...
Wah Sha She State Park...         Apperson...

The heavier rains will be moving out of the warned area soon. 
Conditions should improve by midday.

LAT...LON 3700 9601 3616 9682 3624 9682 3625 9692
      3633 9693 3634 9703 3651 9703 3655 9690
      3658 9689 3660 9692 3659 9705 3668 9706
      3670 9703 3668 9694 3675 9689 3674 9683
      3677 9682 3678 9675 3700 9675

$$

Lacy

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 9:22 AM CDTAreal Flood AdvisoryTSANowata, Osage, Rogers, Washington4 hr
May 24, 12:25 PM CDTFlash Flood WatchTSACraig, Creek, Nowata, Ottawa, Pawnee, Rogers and 2 more44 hr

Nearby

Flash Flood Warnings in Oklahoma, 2019Every flash flood warning in 2019

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.