Alert archive / Oklahoma / Flash Flood Watches in 2019

Flash Flood Watch 21, NWS Tulsa, OK

October 25, 20198 counties in Oklahoma; Washington County, Arkansas

NWS Tulsa, OK issued this flash flood watch at Oct 25, 2019, 3:09 AM CDT for 8 counties in Oklahoma; Washington County, Arkansas. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Oct 25, 2019, 3:09 AM CDT (08:09 UTC)
Expired
Oct 26, 2019, 4:04 AM CDT
In force
25 hr
Issued by
NWS Tulsa, OK
Flood severity
None

Counties Washington County, AR, Adair County, OK, Cherokee County, OK, Haskell County, OK, Latimer County, OK, McIntosh County, OK, Muskogee County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 72 km from the middle of the area, began a volume at 08:11 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, 8.2 hours before the alert went out and 204 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 2019-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2019-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
510 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
653 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

152 
WGUS64 KTSA 250809
FFATSA

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tulsa OK
309 AM CDT Fri Oct 25 2019

...Flash flooding possible across portions of southeast and east
central Oklahoma as well as northwest Arkansas thru tonight...

ARZ010-019-029-OKZ049-068>076-251615-
/O.NEW.KTSA.FF.A.0021.191025T0809Z-191026T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington AR-Crawford-Sebastian-Pushmataha-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Fayetteville, Springdale, Van Buren, 
Fort Smith, Antlers, Clayton, Tahlequah, Stilwell, Muskogee, 
Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau
309 AM CDT Fri Oct 25 2019

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING...

The National Weather Service in Tulsa has issued a

* Flash Flood Watch for portions of Arkansas and Oklahoma... 
  including the following counties...in Arkansas...Crawford... 
  Sebastian and Washington AR. in Oklahoma...Adair...Cherokee... 
  Haskell...Latimer...Le Flore...McIntosh...Muskogee... 
  Pittsburg...Pushmataha and Sequoyah. 

* Through Saturday morning

* A swath of heavy rain has fallen across southeast and east
  central Oklahoma, and into northwest Arkansas over the past 24
  hours. Some places, such as McAlester, have picked up over 6
  inches of rain. A band of rain is expected to set up over the
  region tonight in association with an upper level low pressure.
  With soils saturated, a band of rain setting up over the harder
  hit areas could cause flash flooding. The rains should begin to
  lift northeast and weaken by Saturday morning.

* Main-stem river flooding is expected to occur in the watch area
  as well. This flooding will likely linger for a few days after
  the rains have ended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A flash flood watch means rapidly rising water or flooding is
possible within the watch area.

&&

$$

Lacy
2 follow-up statements
600 
WGUS64 KTSA 251556
FFATSA

Flood Watch
National Weather Service Tulsa OK
1056 AM CDT Fri Oct 25 2019

...Flash flooding possible across portions of southeast and east
central Oklahoma as well as northwest Arkansas thru tonight...

ARZ010-019-029-OKZ049-068>076-261200-
/O.CON.KTSA.FF.A.0021.000000T0000Z-191026T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington AR-Crawford-Sebastian-Pushmataha-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Fayetteville, Springdale, Van Buren, 
Fort Smith, Antlers, Clayton, Tahlequah, Stilwell, Muskogee, 
Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau
1056 AM CDT Fri Oct 25 2019

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...

The Flash Flood Watch continues for

* Portions of Arkansas and Oklahoma...including the following 
  counties...in Arkansas...Crawford...Sebastian and Washington 
  AR. in Oklahoma...Adair...Cherokee...Haskell...Latimer...Le 
  Flore...McIntosh...Muskogee...Pittsburg...Pushmataha and 
  Sequoyah. 

* Through Saturday morning

* A swath of heavy rain has fallen across southeast and east 
  central Oklahoma, and into northwest Arkansas over the past 24 
  hours. Some places, such as McAlester, have picked up over 6 
  inches of rain. A band of rain is expected to set up over the 
  region tonight in association with an upper level low 
  pressure. With soils saturated, a band of rain setting up over 
  the harder hit areas could cause flash flooding. The rains 
  should begin to lift northeast and weaken by Saturday morning. 

* Main-stem river flooding is expected to occur in the watch 
  area as well. This flooding will likely linger for a few days 
  after the rains have ended. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A flash flood watch means rapidly rising water or flooding is
possible within the watch area.

&&

$$
162 
WGUS64 KTSA 260904
FFATSA

Flood Watch
National Weather Service Tulsa OK
404 AM CDT Sat Oct 26 2019

ARZ010-019-029-OKZ049-068>076-261015-
/O.CAN.KTSA.FF.A.0021.000000T0000Z-191026T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington AR-Crawford-Sebastian-Pushmataha-Cherokee-Adair-
Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Fayetteville, Springdale, Van Buren, 
Fort Smith, Antlers, Clayton, Tahlequah, Stilwell, Muskogee, 
Checotah, Sallisaw, McAlester, Stigler, Wilburton, and Poteau
404 AM CDT Sat Oct 26 2019

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of Arkansas and Oklahoma has
been cancelled. Rainfall rates have remained low enough to not
create flooding issues across the region thus far. Rainfall will
also be gradually tapering off over the harder hit areas over the
past couple of days.

$$

Lacy

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 8:04 PM CDTRiver Flood AdvisoryTSACherokee, Delaware18 hr
Oct 24, 8:05 PM CDTRiver Flood WarningTSALeFlore48 hr

Nearby

Flash Flood Watches in Oklahoma, 2019Flash Flood Watches in Arkansas, 2019Every flash flood watch 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.