FLUS44 KTSA 180959
HWOTSA

Hazardous Weather Outlook
National Weather Service Tulsa OK
459 AM CDT Mon May 18 2026

ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071-
073>075-154-172-176-254-272-276-354-376-191000-
Benton-Carroll-Washington AR-Madison-Northern Crawford-
Northern Franklin-North and Central Sebastian-Southern Crawford-
Central and Southern Franklin-Southern Sebastian-Pushmataha-
Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-
Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-
Northern Sequoyah-Northern Le Flore-Northeast Osage-
Central and Southern Sequoyah-Central Le Flore-Southeast Osage-
Southern Le Flore-
459 AM CDT Mon May 18 2026


...SEVERE WEATHER POSSIBLE TODAY AND TONIGHT...


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

.DAY ONE...Today and Tonight.

TORNADO.
	RISK...Limited.
	AREA...Northeast Oklahoma.
	ONSET...After Midnight.

SEVERE THUNDERSTORM.
	RISK...Elevated.
	AREA...Eastern Oklahoma and Northwest Arkansas.
    ONSET...Late Morning.

HEAVY RAIN.
	RISK...Limited.
	AREA...Northeast Oklahoma.
	ONSET...After Midnight.

SIGNIFICANT WINDS.
	RISK...Limited.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Late This Morning.

DISCUSSION...
A conditional risk of severe weather will exist late this morning
and afternoon across eastern Oklahoma and northwest Arkansas as
isolated thunderstorms may develop across the region. Thunderstorm
coverage remains uncertain during this time, but any strong to
severe storm may produce large hail and damaging wind gusts. Much
higher thunderstorm and severe weather potential arrives late 
tonight across northeast Oklahoma, as a line of storms moves south
out of Kansas. All severe hazards will be possible during the
overnight hours including damaging wind gusts, large hail, and at
least a limited threat of tornadoes. Heavy rainfall is also
possible, with potential for localized flash flooding. Highest 
severe potential tonight lies along and northwest of Interstate 
44.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Activation of the Regional Spotter Network Likely.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
TUESDAY...Severe Thunderstorm...High Wind...and Heavy Rain Potential.
WEDNESDAY THROUGH SUNDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Thunderstorms will likely be ongoing Tuesday morning across
eastern Oklahoma and northwest Arkansas. Although storms may be 
weakening during the early morning hours, re-intensification is 
possible as storms move southward during the late morning and 
afternoon. Large hail, damaging winds, and heavy rainfall are the 
primary hazards Tuesday afternoon, but a limited tornado threat 
may also develop. Storms are expected to move south of the area by
late afternoon with the severe threat ending across the area.

Additional rounds of thunderstorms are possible Tuesday night into
Wednesday, but the severe weather potential will be much lower
during this time. Daily chances of thunderstorms then persist 
through the end of the week as additional weather systems 
influence the region. At this time, severe weather potential is 
expected to remain low for the remainder of the week.

weather.gov/tulsa contains additional information.

$$