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000
FLUS44 KTSA 221809
HWOTSA

Hazardous Weather Outlook
National Weather Service Tulsa OK
109 PM CDT Sat Jul 22 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-231030-
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-
109 PM CDT Sat Jul 22 2017

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM CDT TODAY...

...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT TODAY...

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

.DAY ONE...This afternoon and Tonight.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
RISK...Limited.
AREA...Extreme northeast Oklahoma.
ONSET...After midnight.

DANGEROUS HEAT.
RISK...Significant.
AREA... Eastern Oklahoma and Western Arkansas.
ONSET...Ongoing.

AREA AT GREATEST RISK...Generally along and west of a Ottawa to
    Wagoner to Latimer County line in eastern Oklahoma..

DISCUSSION...
Afternoon heat index values generally range from 102 to 108 with
high temperatures forecast to rise into the upper 90s to lower
100s. The combination of hot temperatures and high humidity will
combine to create a dangerous situation in which heat illnesses
are possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sun, and check up on relatives and
neighbors.

A cluster of showers and storms is expected to develop overnight
across portions of Kansas. Some of these storms may move across
the border into extreme northeast Oklahoma after midnight. If this
occurs, lightning, gusty winds and brief downpours are possible.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
SUNDAY and MONDAY...Thunderstorm Potential...Dangerous Heat Potential.
TUESDAY...Thunderstorm Potential.
WEDNESDAY...No Hazards.
THURSDAY and FRIDAY...Dangerous Heat Potential.

EXTENDED DISCUSSION...
Some relief to the current heat wave may be coming, as a front
approaches the area Sunday. Showers and thunderstorms are possible
along the boundary by late Sunday afternoon into the evening.
Although shear will be weak, the very hot temperatures may allow
strong or severe thunderstorm wind gusts with storms as they
collapse. The most likely time for strong or isolated severe
storms will be late Sunday afternoon, mainly after 4 PM into the
evening hours. The chance for storms will continue through
Tuesday across portions of the area.

Dangerous heat is again possible Sunday afternoon
before storms develop, and then again by the end of the week.

weather.gov/tulsa contains additional information.

$$

CORFIDI