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Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
910 PM CDT Tue Aug 20 2019

ARZ019-020-029-OKZ060>062-064>067-070>076-211015-
/O.EXP.KTSA.EH.W.0008.000000T0000Z-190821T0200Z/
/O.CON.KTSA.HT.Y.0023.190821T1700Z-190822T0200Z/
Crawford-Franklin-Sebastian-Tulsa-Rogers-Mayes-Creek-Okfuskee-
Okmulgee-Wagoner-Muskogee-McIntosh-Sequoyah-Pittsburg-Haskell-
Latimer-Le Flore-
Including the cities of Van Buren, Ozark, Charleston, Fort Smith,
Tulsa, Claremore, Pryor, Sapulpa, Okemah, Okmulgee, Wagoner,
Muskogee, Checotah, Sallisaw, McAlester, Stigler, Wilburton,
and Poteau
910 PM CDT Tue Aug 20 2019

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 9 PM CDT
WEDNESDAY...

* HEAT INDEX...Maximum heat indices between 105 and 110
  degrees are expected on Wednesday afternoon.

* TEMPERATURE...Upper 90s to low 100s.

* IMPACTS...The combination of hot temperatures and high
  humidity will create a dangerous situation in which heat
  illnesses are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never leave anyone, including pets, in a closed, parked vehicle.
Temperatures inside can reach over 150 degrees quickly, resulting
in heat stroke and death.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water. To reduce risk during outdoor
work the occupational safety and health administration recommends
scheduling frequent rest breaks in shaded or air conditioned
environments. Anyone overcome by heat should be moved to a cool
and shaded location. Heat stroke is an emergency, call 911.

&&

$$



Hazardous Weather Outlook

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



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NOAA National Weather Service
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