Flash Flood Watch

Flood Watch
National Weather Service Tulsa OK
709 PM CDT Tue Aug 11 2020

ARZ029-OKZ049-053-073>076-120300-
/O.CON.KTSA.FF.A.0008.000000T0000Z-200812T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sebastian-Pushmataha-Choctaw-Pittsburg-Haskell-Latimer-Le Flore-
Including the cities of Fort Smith, Antlers, Clayton, Hugo,
McAlester, Stigler, Wilburton, and Poteau
709 PM CDT Tue Aug 11 2020

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

The Flash Flood Watch continues for

* Portions of west central Arkansas and southeast Oklahoma...
  including the following counties...in west central Arkansas...
  Sebastian. in southeast Oklahoma...Choctaw...Haskell...
  Latimer...Le Flore...Pittsburg and Pushmataha.

* Until 10 PM CDT this evening

* Scattered strong thunderstorms with very heavy rainfall
  will continue into the evening with the potential for
  localized flash flooding across portions of southeast
  Oklahoma and west central Arkansas. Much of the watch area
  has received 2 to 3 inches of rain so far, and local amounts
  of 5 to 6 inches are possible as additional storms continue
  move across the area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A flash flood watch means rapidly rising water or flooding is
possible within the watch area. If you are in the watch area,
keep informed, and be ready for quick action if flash flooding is
observed or if a warning is issued.

&&

$$

Special Weather Statement

SPECIAL WEATHER STATEMENT
National Weather Service HOUSTON/GALVESTON TX
136 PM CDT Tue Aug 11 2020

TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-
335>338-436-438-122300-
Houston-Trinity-Madison-Walker-San Jacinto-Polk-Burleson-Brazos-
Washington-Grimes-Montgomery-Northern Liberty-Colorado-Austin-
Waller-Inland Harris-Chambers-Wharton-Fort Bend-Inland Jackson-
Inland Matagorda-Inland Brazoria-Inland Galveston-
Southern Liberty-Coastal Harris-Coastal Jackson-Coastal Matagorda-
Coastal Brazoria-Coastal Galveston-Matagorda Islands-
Galveston Island and Bolivar Peninsula-
Including the cities of Crockett, Trinity, Groveton,
Madisonville, Huntsville, Shepherd, Coldspring, Livingston,
Corrigan, Caldwell, Somerville, College Station, Bryan, Brenham,
Navasota, Conroe, The Woodlands, Liberty, Cleveland, Dayton,
Columbus, Eagle Lake, Weimar, Sealy, Bellville, Hempstead,
Prairie View, Brookshire, Waller, Houston, Winnie, Mont Belvieu,
Anahuac, Stowell, Old River-Winfree, El Campo, Wharton,
Missouri City, Mission Bend, Sugar Land, Rosenberg, First Colony,
Pecan Grove, Edna, Ganado, Bay City, Pearland, Alvin, Angleton,
League City, Friendswood, Devers, Pasadena, Baytown, Palacios,
Lake Jackson, Freeport, Clute, Texas City, Dickinson, La Marque,
and Galveston
136 PM CDT Tue Aug 11 2020

...HEAT INDEX VALUES BETWEEN 105 AND 109 DEGREES ARE EXPECTED THIS
AFTERNOON AND AGAIN WEDNESDAY AFTERNOON...

The combination of warm temperatures and high dewpoints will
produce heat indices between 105 and 109 degrees this afternoon
and again on Wednesday. Persons with outdoor activities are urged
to drink plenty of water, wear light weight, light colored and
loose fitting clothing. If outdoors for extended periods of time,
take frequent breaks from the heat, go inside an air conditioned
structure or find some shade. Young children and pets should never
be left alone in vehicles under any circumstances.

This period of very warm weather will continue into the weekend
and heat index values could occasionally exceed 108 degrees and
a Heat Advisory may be required.

$$

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Fort Worth TX
747 PM CDT Tue Aug 11 2020

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-130100-
Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin-
Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas-
Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell-
Johnson-Ellis-Henderson-Comanche-Mills-Hamilton-Bosque-Hill-Navarro-
Freestone-Anderson-Lampasas-Coryell-Bell-McLennan-Falls-Limestone-
Leon-Milam-Robertson-
747 PM CDT Tue Aug 11 2020

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.

There is a risk for thunderstorms through the overnight hours
generally northeast of a line from Gainesville to Greenville to
Canton. Gusty winds and small hail may accompany the stronger storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms may linger Wednesday morning across portions of
Northeast Texas. Lightning will be the primary hazard.

Hot conditions are anticipated through the end of the week with air
temperatures near or greater than 103 degrees for some locations
across the Big Country. Heat index values near 105 degrees are
forecast across East Texas. Heat exhaustion and possibly heat stroke
will be possible for those working for prolonged periods outdoors
without adequate shade or water.

There will be an elevated fire weather threat during the afternoon
hours Wednesday through Friday.

There is a chance of thunderstorms across North Texas late Sunday
into Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
658 PM CDT Tue Aug 11 2020

OKZ004>048-050>052-TXZ083>090-130000-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
658 PM CDT Tue Aug 11 2020

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Tonight...

.Thunderstorms...
Showers and thunderstorms will continue to be possible across
portions of southeast, south central, and central Oklahoma, mainly
east of I-35 this evening. Some of the storms could become strong
to severe. Strong winds, hail, and heavy rain are the main
concerns.

Additional storms will be possible in western Kansas overnight,
and may impact northern Oklahoma.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

.Thunderstorms...
Low thunderstorm chances will return this weekend across the
forecast area.

.Heat...
Wednesday through Friday will see afternoon heat indices of around
103 to 107 degrees Fahrenheit.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

$$

Hazardous Weather Outlook
National Weather Service Shreveport LA
550 PM CDT Tue Aug 11 2020

ARZ050-051-059>061-070>073-LAZ001>004-006-OKZ077-TXZ096-097-
108>112-124>126-136>138-122300-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-McCurtain-
Red River-Bowie-Franklin-Titus-Camp-Morris-Cass-Wood-Upshur-
Marion-Smith-Gregg-Harrison-
550 PM CDT Tue Aug 11 2020

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, southeast Oklahoma and northeast Texas.

.DAY ONE...Tonight...

Scattered to numerous showers and thunderstorms will continue
overnight...mainly near and to the north of the Interstate 30
Corridor which included the northern third of Northeast Texas,
Southeast Oklahoma and adjacent sections of Southwest Arkansas.
These thunderstorms will likely be slow moving and could pose a
flash flood risk overnight. These thunderstorms could push
southward towards the I-20 Corridor of Northeast Texas and
Northwest Louisiana towards sunrise Wednesday Morning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Isolated to scattered thunderstorms will remain possible
Wednesday through Monday, primarily over Southwest Arkansas and
North Louisiana as a series of upper level disturbances move
through these areas. Isolated strong storms cannot be ruled out,
with locally gusty winds and brief heavy rainfall possible.

In addition, afternoon temperatures will climb into the mid 90s
each day. When combined with the humidity, heat indices will range
from 100 to 105 degrees.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters may be needed through the overnight
hours for the possibility of flash flood producing thunderstorms.
Please relay any information about observed severe weather to the
NWS while following all local, state, and CDC guidelines.

$$

Hazardous Weather Outlook
National Weather Service Tulsa OK
507 PM CDT Tue Aug 11 2020

ARZ001-002-010-011-019-020-029-OKZ049-053>076-120945-
Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK-
Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK-
Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK-
Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK-
Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK-
Washington OK-Washington AR-
507 PM CDT Tue Aug 11 2020

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Late Afternoon through Tonight.

SEVERE THUNDERSTORM.
RISK...Limited.
AREA...Southeast Oklahoma and west central Arkansas.
ONSET...Ongoing.

HEAVY RAIN.
RISK...Elevated.
 AREA...Along and south of I-44.
ONSET...Ongoing.

Flash Flood.
RISK...Limited.
 AREA...Southeast Oklahoma and Northwest Arkansas.
    ONSET...Ongoing.

DISCUSSION...

Clusters of strong thunderstorms with very heavy rainfall will
continue late this afternoon across portions of eastern Oklahoma and
northwest Arkansas, with the greatest coverage expected across
southeast Oklahoma. A few severe storms will be possible south of
Interstate 44 with locally damaging winds. In addition, due to the
very heavy rainfall, flash flooding will also be possible across
southeast Oklahoma and northwest Arkansas.

The threat of severe weather and heavy rainfall should diminish late
this evening and into the overnight hours.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Local Spotter Activation May Be Needed.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY through SUNDAY...Thunderstorm...Dangerous Heat Potential.
MONDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...

Thunderstorm chances will continue most each day through the
weekend, however currently chances appear rather low and largely
confined to far eastern Oklahoma and northwest Arkansas.
Hot and humid conditions are likely to return for mid to late week
with afternoon heat index values around 105 degrees likely.
A weak cold front may move through the region over the weekend
bringing another chance of storms, and possibly cooler temperatures
by early next week.

weather.gov/tulsa contains additional information.

$$

Hazardous Weather Outlook
National Weather Service Lubbock TX
403 AM CDT Tue Aug 11 2020

TXZ021>044-120915-
Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-Floyd-
Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-Yoakum-
Terry-Lynn-Garza-Kent-Stonewall-
403 AM CDT Tue Aug 11 2020

This Hazardous Weather Outlook is for the South Plains, Rolling
Plains and the far Southern Texas Panhandle.

.DAY ONE...Today and tonight.

Isolated to widely scattered thunderstorms will develop across the
southwest Texas Panhandle and western South Plains late this
afternoon. This activity will move east and southeastward through
the evening hours. The strongest storms will be capable of producing
quarter size hail, wind gusts to 65 mph and brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Extreme heat is expected Thursday and Friday, with highs approaching
105 on the Caprock and 110 degrees to the east across the Rolling
Plains.

$$