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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Fort Worth TX
300 PM CDT Tue Aug 20 2019

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-211300-
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-
300 PM CDT Tue Aug 20 2019

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Tonight.
Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Heat index values may exceed 105 again Wednesday afternoon across
areas along and east of I-35. Although the heat will persist through
mid week, heat index values should gradually diminish later in the
week into next weekend.

Low thunderstorm chances will return beginning Friday and continue
off and on through the upcoming weekend into early next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
1134 PM CDT Tue Aug 20 2019

OKZ004>048-050>052-TXZ083>090-220445-
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-
1134 PM CDT Tue Aug 20 2019

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

.DAY ONE...Tonight...

.Thunderstorms...
Isolated to widely scattered thunderstorms will remain possible
across parts of northwest Oklahoma overnight. Gusty winds and
cloud-to-ground lightning will be the primary hazards.


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

.Thunderstorms...
Thunderstorm chances will occur each day from Wednesday through
Saturday with the highest chances across northern into eastern
Oklahoma. A few strong to severe thunderstorms are possible with
the primary hazard being damaging wind gusts.

.Heat...
Afternoon heat indices of 100 to 110 degrees will continue across
much of the area on Wednesday.

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 Tulsa OK
449 PM CDT Tue Aug 20 2019

ARZ001-002-010-011-019-020-029-OKZ049-053>076-211045-
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-
449 PM CDT Tue Aug 20 2019


...DANGEROUS HEAT CONTINUES TODAY AND TOMORROW...


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

.DAY ONE...Today and Tonight.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
RISK...Limited.
AREA... Terrain areas of southeast Oklahoma and northwestern Arkansas.
    ONSET... Ongoing.

DANGEROUS HEAT.
RISK...Critical.
    AREA... Eastern Oklahoma and northwest Arkansas.
    ONSET... Ongoing.

AREA AT GREATEST RISK... Northeast Oklahoma and northwest
Arkansas.

DISCUSSION...

Dangerous heat is ongoing across much of eastern Oklahoma and
northwestern Arkansas. Heat indices are currently (as of 4:45 PM)
in the 103 to 112 range. If you are outside this
afternoon/evening, be sure to take heat precautions such as taking
frequent breaks in the AC and drinking plenty of fluids.

A few showers and thunderstorms have bubbled up across portions of
southeast Oklahoma and west-central Arkansas. Where storms occur,
dangerous cloud-to-ground lightning will be likely along with
gusty winds and heavy downpours. These spotty thunderstorms are
also bringing local relief from the heat with locations such as
Clayton, OK cooling down from heat indices well over 100 to 89.
Additional thunderstorm development is possible this afternoon and
evening albeit very isolated. This activity will likely dissipate
quickly as we near sun set.


SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY and THURSDAY...Thunderstorm Potential...Dangerous Heat
Potential...Heavy Rain Potential.
FRIDAY and Saturday...Thunderstorm Potential.
SUNDAY and MONDAY...Thunderstorm Potential...Dangerous Heat
Potential.

EXTENDED DISCUSSION...

Hot and humid conditions will continue on Wednesday with several
locations exceeding a heat index of 105 with some nearing 110.
Trends will need to be monitored for a potential Excessive Heat
Warning issuance for tomorrow afternoon. The end of this stretch
of very hot and humid conditions is in sight. A cold front will
begin to move into the northern portions of northeast Oklahoma
and northwest Arkansas late Wednesday into Thursday. The front
will be the main focal point for showers and thunderstorms
beginning Wednesday afternoon and continuing into the weekend.

There is the potential of some stronger storms Wednesday and
especially as we move into Thursday with the main severe threat
being damaging wind gusts. The unsettled pattern through the
weekend will bring the chance for multiple rounds of showers and
storms, especially over northeast OK and northwest AR, as well as
much cooler weather. Rainfall totals through the weekend will
generally be in the 1 to 2 inch range for northeast Oklahoma and
northwest Arkansas with totals decreasing the farther southeast
you go. Locally higher rainfall totals will be possible where
storms train over the same areas.

The potential for elevated heat indices starts to increase by
Sunday and Monday as the influence of the cold front begins to
lessen and the upper level ridge builds back into our region.

weather.gov/tulsa contains additional information.

$$
Snider

Hazardous Weather Outlook
National Weather Service Lake Charles LA
305 PM CDT Tue Aug 20 2019

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
211100-
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin-
Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron-
East Cameron-Tyler-Hardin-Jefferson-Orange-Northern Jasper-
Northern Newton-Southern Jasper-Southern Newton-
305 PM CDT Tue Aug 20 2019

This Hazardous Weather Outlook is for portions of central
Louisiana, south central Louisiana, southwest Louisiana, west
central Louisiana, and southeast Texas.

.DAY ONE...This Afternoon and Tonight

Scattered to numerous showers and thunderstorms will continue to
develop across the area into the evening. With abundant moisture
in place, heavy rainfall will be possible with the stronger
storms, as well as brief gusty winds and frequent cloud-to-ground
lightning.

Away from the rain, hot and humid conditions can be expected the
remainder of the afternoon...with temperatures running in the
lower or mid 90s and relative humidity values remaining above 50
percent, heat index values exceeding 105 degrees look likely for
many locations. If working outdoors in the heat, be sure to take
extra precautions to avoid heat-related illness, including
drinking plenty of water and taking numerous breaks

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A persistent weather pattern will maintain hot and humid days and
warm and muggy nights with a daily chance of showers and
thunderstorms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be required.

$$

Hazardous Weather Outlook
National Weather Service Shreveport LA
1216 PM CDT Tue Aug 20 2019

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-211100-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
1216 PM CDT Tue Aug 20 2019

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

.DAY ONE...This Afternoon and Tonight...

The Heat Advisory remains in effect for all of the Four State
Region this afternoon through Wednesday, as afternoon
temperatures climb into the upper 90s to in excess of 100 degrees.
When combined with the humidity, heat indices will range from 105
to 110 degrees. If you have to be outside, wear lightweight,
loose fitting clothing, drink plenty of water, and take frequent
breaks in air conditioned facilities. Isolated to widely scattered
showers and thunderstorms will be possible this afternoon across
the region, but should diminish by early evening with the loss of
heating.

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

The oppressive heat will continue Wednesday through Friday, as
afternoon temperatures continue to climb into the mid 90s to near
100 degrees. When combined with the humidity, heat indices will
range from 105 to 110 degrees each day. A weak upper level
disturbance may develop over the Western Gulf of Mexico Thursday,
and slowly shift north northeast towards the Southcentral or
Southeast Louisiana coast by Saturday morning, which may result in
an increase in scattered showers and thunderstorms over the
eastern Sections of Northcentral Louisiana. Another upper level
disturbance drifting southeast into the area this weekend may also
result in isolated to widely scattered shower and thunderstorm
development across the remainder of the region. This disturbance
should drift southeast into East Texas and North Louisiana Monday,
thus diminishing rain chances across portions of extreme Northeast
Texas, Southeast Oklahoma, and Southwest Arkansas as upper level
ridging building back east into the area from the Southern Rockies
and Southern Plains. Thus, a return to above normal temperatures
is expected across these areas early next week.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters will not be needed through tonight.

$$

15

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
402 AM CDT Tue Aug 20 2019

TXZ171>173-183>194-202>209-217>225-228-210915-
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde-
Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala-
Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit-
402 AM CDT Tue Aug 20 2019

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

Elevated fire weather conditions will continue today, as hot,
dry, and occasionally breezy conditions combine with drying
vegetation.

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

Elevated fire weather conditions will continue through at least
Thursday, as hot, dry, and occasionally breezy conditions combine
with drying vegetation.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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