Severe Thunderstorm Warning 137, NWS Tulsa, OK

Area Forecast Discussion
National Weather Service Tulsa OK
642 PM CDT Wed May 4 2022

...New AVIATION...

.SHORT TERM...
(The rest of this afternoon through tonight)
Issued at 138 PM CDT Wed May 4 2022

Warm front is currently lifting north near the I-40 corridor with
upper 60s to near 70 dew-points extending south down to the Red
River. As additional heating continues MlCAPES around 2000 J/kg
are expected along and south of frontal boundary. Isolated strong
to severe thunderstorms have already developed across portions of
western Oklahoma. Latest mesoscale trends, including CAM solutions
suggest that scattered strong to severe storms will develop across
central Oklahoma, spreading into portions of eastern Oklahoma by
early evening in association with approaching upper level jet
streak. Large hail and damaging winds will be likely with any
storms that develop with an enhanced tornado threat along/south of
frontal boundary.

PWATs have already climbed to 1.5 inches over much of the area
and will likely continue to increase into the 1.75 to 2.00 inch
range overnight. In additional to the scattered storms this
evening, convection to the west will likely grow upscale, with a
MCS sweeping through Eastern Oklahoma into northwest Arkansas by
Thursday morning. A swath of 1 to 3 inches have already occurred
just south of I-44 and with additional rainfall overnight, significant
flash flooding will be possible in some areas with locally 5 to 6
inches possible through Thursday. Several main-stream rivers are
also expected to rise above flood.

&&

.LONG TERM...
(Thursday through Wednesday)
Issued at 138 PM CDT Wed May 4 2022

Still a little uncertainty regarding how much atmosphere can
destabilize behind main convection line and ahead of approaching
cold front, but the overall heavy rain threat should begin to
shift east of the region by late afternoon. At least a limited
severe threat will be possible across southeast Oklahoma/northwest
Arkansas.

Dry forecast still expected over the weekend into early next week
with a continued warming trend. Gusty south winds will also develop,
especially during the Sunday-Tuesday time frame. Low thunderstorm
chances return by Tuesday, however it appears approaching cold
front could stall north of the area which would keep overall precip
chances fairly low. Again, stayed fairly close to NBM guidance
through the extended periods.

&&

.AVIATION...
(00Z TAFS)
Issued at 639 PM CDT Wed May 4 2022

Widespread showers and thunderstorms and poor flying conditions
will occur at all sites overnight into early Thursday. Some
improvement is expected as the day goes on Thursday, but MVFR
ceilings will persist through the day.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   62  74  53  74 / 100  70  20   0
FSM   63  76  55  75 /  90  90  40   0
MLC   63  75  51  77 /  90  70  10   0
BVO   61  74  52  74 / 100  70  20   0
FYV   60  74  52  71 /  90  90  50  10
BYV   57  74  53  68 /  90  90  60  10
MKO   62  74  51  73 /  90  80  20   0
MIO   59  74  53  69 / 100  90  40  10
F10   62  74  50  75 / 100  60  10   0
HHW   64  77  53  79 /  80  90  20   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Thursday afternoon for OKZ049-053>076.

AR...Flood Watch through Thursday afternoon for ARZ001-002-010-011-
     019-020-029.

&&

SHORT TERM...12
LONG TERM....12
AVIATION...05

Hazardous Weather Outlook
National Weather Service Tulsa OK
429 PM CDT Wed May 4 2022

ARZ001-002-010-011-019-020-029-OKZ049-053>076-051030-
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-
429 PM CDT Wed May 4 2022

...SEVERE WEATHER EXPECTED WITH THE POTENTIAL FOR A FEW STRONG
   TORNADOES...
...SIGNIFICANT FLOODING LIKELY TONIGHT INTO THURSDAY...

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

.DAY ONE...Remainder of This Afternoon and Tonight.

TORNADO.
	RISK...Significant.
	AREA...Eastern Oklahoma.
	ONSET...After 5 PM.

    AREA AT GREATEST RISK...East-Central Oklahoma.

SEVERE THUNDERSTORM.
	RISK...Critical.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

	AREA AT GREATEST RISK...Eastern Oklahoma.

FLASH FLOOD.
	RISK...Elevated.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

DISCUSSION...

Scattered severe storms thunderstorms will likely develop by late
afternoon or early evening across portions of eastern Oklahoma.
These storms will be capable of large hail, damaging winds and
tornadoes. A few strong tornadoes will be possible over east-central
Oklahoma near a warm frontal boundary.

More widespread thunderstorms to the west are likely to organize
into a squall line and push eastward across the area overnight into
Thursday. The squall line will pose a damaging wind threat, with
potential for isolated gusts above 70 mph, and possibly tornadoes.

In addition, the threat for significant flash flooding continues to
increase given multiple rounds of thunderstorms with heavy rainfall
expected. A flash flood watch is in effect through Thursday
afternoon. Widespread 2 to 3 inches of rain are expected with
locally 5 to 6 inches likely in some locations.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
THURSDAY...Severe Thunderstorm Potential...High Wind Potential...
           Heavy Rain Potential.
FRIDAY...No Hazards.
SATURDAY THROUGH MONDAY...High Wind Potential.
TUESDAY...Thunderstorm Potential and high wind Potential.

EXTENDED DISCUSSION...
Severe weather could be ongoing early Thursday morning and storms
may also redevelop Thursday afternoon along an advancing cold
front. While uncertainty remains in the coverage of storms by
Thursday afternoon, any storms which do develop would pose a risk
of severe weather.

Dry and mild weather prevails Friday before a notable change
occurs over the weekend. Hot and humid conditions will develop
Sunday and persist through early next week. The early season heat
often raises potential for heat stress for any outdoor activities.

weather.gov/tulsa contains additional information.

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
617 PM CDT WED MAY 4 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0608 PM     HAIL             3 NW SAND SPRINGS       36.18N 96.15W
05/04/2022  E1.00 INCH       OSAGE              OK   PUBLIC

            SOCIAL MEDIA REPORT OF 1 INCH HAIL AT THE
            SAND SPRINGS POGUE AIRPORT.

&&

JDS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
622 PM CDT WED MAY 4 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0607 PM     HAIL             SAND SPRINGS            36.14N 96.10W
05/04/2022  E1.25 INCH       TULSA              OK   PUBLIC

            SOCIAL MEDIA REPORT OF HALF DOLLAR HAIL IN
            SAND SPRINGS.

&&

JDS

Special Weather Statement
National Weather Service Tulsa OK
634 PM CDT Wed May 4 2022

OKZ054>056-050015-
Osage OK-Nowata OK-Washington OK-
634 PM CDT Wed May 4 2022

...A strong thunderstorm will impact portions of eastern Osage,
Washington and northern Nowata Counties through 715 PM CDT...

At 634 PM CDT, Doppler radar indicated a strong thunderstorm 3 miles
south of Bartlesville, moving northeast at 55 mph.

HAZARD...Penny size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations in or near the path include...
Bartlesville...                   Dewey...
South Coffeyville...              Copan...
Ochelata...                       Lenapah...
Wann...                           Bartlesville Municipal Airport...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3699 9541 3656 9592 3665 9611 3700 9591
TIME...MOT...LOC 2334Z 218DEG 48KT 3668 9596

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH

Special Weather Statement
National Weather Service Tulsa OK
636 PM CDT Wed May 4 2022

OKZ055-056-060-061-050015-
Tulsa OK-Rogers OK-Nowata OK-Washington OK-
636 PM CDT Wed May 4 2022

...A strong thunderstorm will impact portions of northern Rogers,
southeastern Washington, southwestern Nowata and northeastern Tulsa
Counties through 715 PM CDT...

At 635 PM CDT, Doppler radar indicated a strong thunderstorm over
Collinsville, moving northeast at 45 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations in or near the path include...
Nowata...                         Owasso...
Skiatook...                       Collinsville...
Chelsea...                        Oologah...
Foyil...                          Talala...
Vera...                           New Alluwe...
Watova...                         Bushyhead...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 1000 PM CDT for northeastern
Oklahoma.

&&

LAT...LON 3661 9543 3660 9543 3660 9541 3653 9533
      3653 9534 3651 9536 3651 9543 3647 9544
      3625 9588 3635 9600 3677 9566
TIME...MOT...LOC 2335Z 225DEG 40KT 3637 9587

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

Special Weather Statement
National Weather Service Tulsa OK
647 PM CDT Wed May 4 2022

OKZ054>056-060-061-050015-
Tulsa OK-Osage OK-Rogers OK-Nowata OK-Washington OK-
647 PM CDT Wed May 4 2022

...A strong thunderstorm will impact portions of northwestern Rogers,
east central Osage, southern Washington, southwestern Nowata and
north central Tulsa Counties through 715 PM CDT...

At 647 PM CDT, Doppler radar indicated a strong thunderstorm 3 miles
southeast of Avant, moving northeast at 50 mph.

HAZARD...Penny size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations in or near the path include...
Bartlesville...                   Skiatook...
Barnsdall...                      Ramona...
Ochelata...                       Avant...
Talala...                         Vera...
Watova...                         Wolco...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 1000 PM CDT for northeastern
Oklahoma.

&&

LAT...LON 3630 9604 3643 9628 3679 9597 3657 9554
TIME...MOT...LOC 2347Z 231DEG 41KT 3646 9600

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH