Alert archive / Oklahoma / Flash Flood Watches in 2021

Flash Flood Watch 10, NWS Tulsa, OK

October 12, 20216 counties in Oklahoma; 4 counties in Arkansas

NWS Tulsa, OK issued this flash flood watch at Oct 12, 2021, 1:52 PM CDT for 6 counties in Oklahoma; 4 counties in Arkansas. It took effect at Oct 13, 2021, 7:00 PM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 2021, 1:52 PM CDT (18:52 UTC)
In effect from
Oct 13, 2021, 7:00 PM CDT
Expired
Oct 14, 2021, 12:50 PM CDT
In force
18 hr
Issued by
NWS Tulsa, OK
Flood severity
None

Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Choctaw County, OK, Haskell County, OK, Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 37 km from the middle of the area, began a volume at 18:52 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, 6.9 hours before the alert went out and 187 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 2021-10-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 square meters per square second.1939587897Sfc1 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
1649 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

704 
WGUS64 KTSA 121852
FFATSA

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tulsa OK
152 PM CDT Tue Oct 12 2021

OKZ049-053-073>076-130300-
/O.NEW.KTSA.FF.A.0010.211014T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha-Choctaw-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, 
Clayton, and Stigler
152 PM CDT Tue Oct 12 2021

...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH 
THURSDAY EVENING...

The National Weather Service in Tulsa has issued a

* Flash Flood Watch for a portion of southeast Oklahoma, including 
  the following counties, Choctaw, Haskell, Latimer, Le Flore, 
  Pittsburg and Pushmataha.

* From Wednesday evening through Thursday evening.

* Heavy rain with rain totals of 2 to 4 inches will be possible 
  Wednesday night into Thursday across southeast Oklahoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
5 follow-up statements
978 
WGUS64 KTSA 130803
FFATSA

Flood Watch
National Weather Service Tulsa OK
303 AM CDT Wed Oct 13 2021

OKZ049-053-073>076-132100-
/O.CON.KTSA.FF.A.0010.211014T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha-Choctaw-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, 
Clayton, and Stigler
303 AM CDT Wed Oct 13 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH 
THURSDAY EVENING...

The Flash Flood Watch continues for

* A portion of southeast Oklahoma, including the following counties, 
  Choctaw, Haskell, Latimer, Le Flore, Pittsburg and Pushmataha.

* From this evening through Thursday evening.

* Heavy rain, with rain totals of 2 to 4 inches, will be possible 
  tonight into Thursday across southeast Oklahoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
591 
WGUS64 KTSA 131830
FFATSA

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Tulsa OK
130 PM CDT Wed Oct 13 2021

ARZ001-002-010-011-019-020-029-OKZ069-072-140900-
/O.EXA.KTSA.FF.A.0010.211014T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Adair-Sequoyah-
Including the cities of Eureka Springs, Rogers, Huntsville, 
Springdale, Van Buren, Sallisaw, Stilwell, Ozark, Fort Smith, 
Charleston, Fayetteville, Bentonville, and Berryville
130 PM CDT Wed Oct 13 2021

...FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH 
THURSDAY EVENING...

The National Weather Service in Tulsa has expanded the

* Flash Flood Watch to include portions of Arkansas and Oklahoma, 
  including the following counties, in Arkansas, Benton, Carroll, 
  Crawford, Franklin, Madison, Sebastian and Washington AR. In 
  Oklahoma, Adair and Sequoyah.

* From 7 PM CDT this evening through Thursday evening.

* Heavy rain, with rain totals of 2 to 4 inches will be possible 
  tonight into Thursday across the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

OKZ049-053-073>076-140900-
/O.CON.KTSA.FF.A.0010.211014T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha-Choctaw-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, 
Clayton, and Stigler
130 PM CDT Wed Oct 13 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING 
THROUGH THURSDAY EVENING...

The Flash Flood Watch continues for

* A portion of southeast Oklahoma, including the following counties, 
  Choctaw, Haskell, Latimer, Le Flore, Pittsburg and Pushmataha.

* From 7 PM CDT this evening through Thursday evening.

* Heavy rain, with rain totals of 2 to 4 inches will be possible 
  tonight through Thursday across the watch area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
440 
WGUS64 KTSA 140759
FFATSA

Flood Watch
National Weather Service Tulsa OK
259 AM CDT Thu Oct 14 2021

ARZ001-002-010-011-019-020-029-OKZ049-053-069-072>076-142100-
/O.CON.KTSA.FF.A.0010.000000T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Pushmataha-Choctaw-Adair-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, McAlester, Poteau, Eureka Springs, 
Rogers, Huntsville, Springdale, Hugo, Van Buren, Sallisaw, 
Wilburton, Clayton, Stilwell, Ozark, Stigler, Fort Smith, 
Charleston, Fayetteville, Bentonville, and Berryville
259 AM CDT Thu Oct 14 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* Portions of Arkansas and Oklahoma, including the following 
  counties, in Arkansas, Benton, Carroll, Crawford, Franklin, 
  Madison, Sebastian and Washington AR. In Oklahoma, Adair, Choctaw, 
  Haskell, Latimer, Le Flore, Pittsburg, Pushmataha and Sequoyah.

* Through this evening.

* Widespread rainfall between 2 and 4 inches, with locally higher 
  amounts, has fallen across southeast Oklahoma and northwest 
  Arkansas over the past 24 hours. Additional rainfall amounts 
  around an inch will be possible today, mainly during the morning 
  hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
717 
WGUS64 KTSA 141044
FFATSA

Flood Watch
National Weather Service Tulsa OK
544 AM CDT Thu Oct 14 2021

OKZ049-053-069-072>076-141145-
/O.CAN.KTSA.FF.A.0010.000000T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pushmataha-Choctaw-Adair-Sequoyah-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Antlers, McAlester, Poteau, Hugo, Wilburton, 
Clayton, Stilwell, Sallisaw, and Stigler
544 AM CDT Thu Oct 14 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of east central Oklahoma, 
northeast Oklahoma and southeast Oklahoma, including the following 
counties, in east central Oklahoma, Sequoyah. In northeast Oklahoma, 
Adair. In southeast Oklahoma, Choctaw, Haskell, Latimer, Le Flore, 
Pittsburg and Pushmataha has been cancelled.

The Flood Watch is cancelled.

$$

ARZ001-002-010-011-019-020-029-141845-
/O.CON.KTSA.FF.A.0010.000000T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Including the cities of Eureka Springs, Rogers, Huntsville, 
Springdale, Van Buren, Ozark, Fort Smith, Charleston, Fayetteville, 
Bentonville, and Berryville
544 AM CDT Thu Oct 14 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

The Flash Flood Watch continues for

* Portions of northwest Arkansas and west central Arkansas, 
  including the following counties, in northwest Arkansas, Benton, 
  Carroll, Crawford, Madison and Washington AR. In west central 
  Arkansas, Franklin and Sebastian.

* Through this evening.

* Two to 5 inches of rain have fallen across parts of northwest 
  Arkansas, with an additional half inch to an inch possible today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
652 
WGUS64 KTSA 141750
FFATSA

Flood Watch
National Weather Service Tulsa OK
1250 PM CDT Thu Oct 14 2021

ARZ001-002-010-011-019-020-029-141900-
/O.CAN.KTSA.FF.A.0010.000000T0000Z-211015T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton-Carroll-Washington AR-Madison-Crawford-Franklin-Sebastian-
Including the cities of Eureka Springs, Rogers, Huntsville, 
Springdale, Van Buren, Ozark, Fort Smith, Charleston, Fayetteville, 
Bentonville, and Berryville
1250 PM CDT Thu Oct 14 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of northwest Arkansas and west 
central Arkansas, including the following counties, in northwest 
Arkansas, Benton, Carroll, Crawford, Madison and Washington AR. In 
west central Arkansas, Franklin and Sebastian has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat.

$$

Lacy

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 3:44 PM CDTSpecial Weather StatementTSAKay31 min

Nearby

Flash Flood Watches in Oklahoma, 2021Flash Flood Watches in Arkansas, 2021Every flash flood watch in 2021

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.