Alert archive / Arkansas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 323, NWS Tulsa, OK

September 26, 2019Adair County, Sequoyah County, Oklahoma; 5 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 26, 2019, 1:56 AM CDT for Adair County, Sequoyah County, Oklahoma; 5 counties in Arkansas. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 26, 2019, 1:56 AM CDT (06:56 UTC)
Expired: Sep 26, 2019, 2:45 AM CDT
In force: 49 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 43 km from the middle of the area, began a volume at 06:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 25, 9:30 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.9 hours before the alert went out and 143 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1028 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 25, 11:53 PM CDT, 2 hours 3 minutes earlier.

Area forecast discussion, Sep 25, 11:53 PM CDT, 2 hours 3 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1153 PM CDT Wed Sep 25 2019

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
A complex of showers and thunderstorms will continue to move
southeast and affect all sites overnight into early Thursday
morning. MVFR or lower conditions are expected in storms, and MVFR
ceilings will likely persist into Thursday afternoon. Ceilings
will improve to VFR by late Thursday afternoon and evening.

&&

.PREV DISCUSSION... /Issued 950 PM CDT Wed Sep 25 2019/

..UPDATE...

DISCUSSION...
Thunderstorm initiation continued across Northern Oklahoma this
evening along an elevated instability axis stretched across a
remnant outflow boundary positioned from North Central to
Northeast Oklahoma. At the same time...additional thunderstorms
were developing along/ahead of a cold front across Southeast
Kansas approaching Northeast Oklahoma. The storms along the
outflow boundary will have the potential for locally strong to
marginally severe winds and some hail...while the main severe
potential overnight will be associated with the convection
along/ahead of the approaching cold front.

Overnight tonight...ongoing thunderstorms along the outflow
boundary are expected to join up with the storms along the cold
front across Northeast Oklahoma and push southeastward through the
CWA. Locally damaging winds and also a limited hail threat will
be possible into the overnight hours with this activity. The
greater potentials looks to be across Northeast Oklahoma into
Northwest Arkansas. A severe thunderstorm watch has been issued
until 10z for much of the CWA.

The frontal boundary looks to stall across the northern half of
the CWA during the night which could allow for training storms as
convection has ample amounts of low level moisture to work with.
In response...periods of very heavy rainfall are forecast
overnight. 1-2+ inches of rainfall are possible with locally
higher amounts across mainly Northeast Oklahoma into Northwest
Arkansas. These rains on top of recent rains will allow for flash
flood conditions to be possible. Thus...will continue with the
current flash flood watch through 12z. There still may be a need
to expand the watch southeastward south of Interstate 40 and will
monitor conditions as the heavy rain axis sets up.

With the convection and frontal boundary stalling over the
region...low temps tonight look to range from the mid 60s near the
Kansas border to the upper 60s and lower 70s south of the stall
frontal boundary. For the evening update...have adjusted pops/wx
based on ongoing radar trends and the mentioned above with slight
tweaks to hourly temp/dewpoint/sky/wind grids based on latest
trends/obs.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch until 7 AM CDT Thursday for OKZ054>063-067>069.

AR...Flash Flood Watch until 7 AM CDT Thursday for ARZ001-002-010-011.

&&

AVIATION.....05

Hazardous weather outlook, Sep 25, 5:12 PM CDT, 8 hours 44 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
512 PM CDT Wed Sep 25 2019

ARZ001-002-010-011-019-020-029-OKZ049-053>076-261045-
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-
512 PM CDT Wed Sep 25 2019

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

.DAY ONE...This Evening and Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing With Main Threat After 10 PM.

FLASH FLOOD.
	RISK...Elevated.
	AREA...North of Interstate 40.
	ONSET...After 10 PM.

HEAVY RAIN.
	RISK...Significant.
	AREA...North of Interstate 40.
	ONSET...After 10 PM.

	AREA AT GREATEST RISK...Far Northeast Oklahoma into Far
							Northwest Arkansas.

DANGEROUS HEAT.
	RISK...Limited.
	AREA...Much of Eastern Oklahoma and West Central Arkansas.
	ONSET...Ongoing.

DISCUSSION...
A surface boundary leftover from the morning activity remained
positioned across the region late this afternoon. Strong surface
heating combined with ample amounts of low level moisture
interacting with the boundary could allow for a few strong to
marginally severe storms to develop into the evening hours. The
greater potential into the early evening hours is expected across
northeast Oklahoma into northwest Arkansas.

The main threat for severe weather will likely be late this evening
into the overnight hours as additional storms develop across far
northeast Oklahoma and far northwest Arkansas along an
approaching frontal boundary. A few thunderstorms will be capable
of producing hail to the size of quarters and damaging wind gusts
to 65 mph. Thunderstorms are expected to continue through much of
tonight, pushing south and east and transitioning to a heavy rain
threat, including the potential for flash flooding. A flash flood
watch is in effect from 10 PM through 7 AM tonight for much
Northeast Oklahoma and far Northwest Arkansas.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Local Spotter Activation May Be Needed.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
THURSDAY...Thunderstorm Potential.
FRIDAY...Thunderstorm Potential...High Wind Potential.
SATURDAY AND SUNDAY...Thunderstorm Potential.
MONDAY AND TUESDAY...No Hazards.

EXTENDED DISCUSSION...
Thunderstorms will likely be ongoing Thursday morning with the
greater potential across southeast Oklahoma into west central
Arkansas. Locally heavy rainfall will again be possible.
Precipitation is forecast to taper off by Thursday evening with a
brief dry period expected into Friday afternoon. Northwesterly
flow aloft will develop by late Friday and continue through much
of the weekend, leading to a continued thunderstorm potential. By
early next week, a building ridge will result in warm and dry
weather.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Sep 25, 11:48 PM CDT, 2 hours 8 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1148 PM CDT Wed Sep 25 2019

OKZ054-055-059-260515-
Osage OK-Pawnee OK-Washington OK-
1148 PM CDT Wed Sep 25 2019

...SIGNIFICANT WEATHER ADVISORY FOR OSAGE...WEST CENTRAL WASHINGTON
AND PAWNEE COUNTIES UNTIL 1215 AM CDT...

At 1148 PM CDT, strong thunderstorms were located along a line
extending from 7 miles northeast of Foraker to 6 miles northeast of
Fairfax to 3 miles east of Red Rock. Movement was southeast at 35
mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations in or near the path include...
Bartlesville...                   Pawhuska...
Pawnee...                         Hominy...
Cleveland...                      Fairfax...
Barnsdall...                      Shidler...
Wynona...                         Kaw City...
Jennings...                       Ralston...
Osage...                          Burbank...
Hallett...                        Blackburn...
Maramec...                        Skedee...
Foraker...                        Bigheart...

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northeastern Oklahoma.

LAT...LON 3700 9631 3674 9593 3632 9620 3616 9658
      3616 9682 3624 9682 3625 9692 3633 9693
      3634 9703 3651 9703 3658 9689 3660 9692
      3659 9704 3662 9705 3669 9698 3669 9693
      3675 9689 3678 9675 3688 9675 3700 9644
TIME...MOT...LOC 0448Z 312DEG 29KT 3692 9644 3662 9661 3646 9711

Special weather statement, Sep 26, 12:12 AM CDT, 1 hour 44 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1212 AM CDT Thu Sep 26 2019

OKZ054-055-059-060-260545-
Tulsa OK-Osage OK-Pawnee OK-Washington OK-
1212 AM CDT Thu Sep 26 2019

...SIGNIFICANT WEATHER ADVISORY FOR OSAGE...SOUTHWESTERN
WASHINGTON...PAWNEE AND NORTH CENTRAL TULSA COUNTIES UNTIL 1245 AM
CDT...

At 1212 AM CDT, strong thunderstorms were located along a line
extending from Okesa to 6 miles northeast of Blackburn to Sooner
Lake. Movement was southeast at 35 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations in or near the path include...
Tulsa...                          Bartlesville...
Sand Springs...                   Pawhuska...
Pawnee...                         Skiatook...
Hominy...                         Cleveland...
Fairfax...                        Barnsdall...
Sperry...                         Ramona...
Wynona...                         Ochelata...
Jennings...                       Ralston...
Avant...                          Westport...
Vera...                           Osage...

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northeastern Oklahoma.

LAT...LON 3670 9705 3668 9694 3674 9690 3681 9600
      3645 9588 3618 9607 3616 9682 3624 9682
      3625 9692 3633 9693 3634 9703 3651 9703
      3653 9698 3655 9690 3658 9689 3660 9692
      3658 9698 3659 9705 3660 9704 3668 9706
TIME...MOT...LOC 0512Z 296DEG 31KT 3672 9615 3645 9653 3644 9703

Special weather statement, Sep 26, 12:34 AM CDT, 1 hour 22 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1234 AM CDT Thu Sep 26 2019

ARZ001-OKZ062-063-067>069-260615-
Benton AR-Adair OK-Cherokee OK-Delaware OK-Mayes OK-Wagoner OK-
1234 AM CDT Thu Sep 26 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BENTON...SOUTHERN
DELAWARE...SOUTHERN MAYES...NORTHWESTERN ADAIR...NORTHEASTERN WAGONER
AND NORTHERN CHEROKEE COUNTIES UNTIL 115 AM CDT...

At 1234 AM CDT, strong thunderstorms were located along a line
extending from 5 miles southeast of Jay to near Sportsmen Acres
Community. Movement was south at 20 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations in or near the path include...
Siloam Springs...                 Wagoner...
Jay...                            Pryor Creek...
Chouteau...                       Locust Grove...
Salina...                         West Siloam Springs...
Colcord...                        Kansas...
Hulbert...                        Watts...
Oaks...                           Peggs...
Rose...                           Leach...
Scraper...                        Twin Oaks...
Sportsmen Acres Community...      Mazie...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
northwestern Arkansas...and northeastern and east central Oklahoma.

LAT...LON 3610 9447 3610 9455 3606 9454 3587 9537
      3629 9538 3645 9463
TIME...MOT...LOC 0534Z 349DEG 16KT 3638 9471 3625 9528

Local storm report, Sep 26, 1:05 AM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
105 AM CDT THU SEP 26 2019

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

1159 PM     FLASH FLOOD      LENAPAH                 36.85N 95.64W
09/25/2019                   NOWATA             OK   EMERGENCY MNGR

            HIGHWAY 10 CLOSED JUST EAST OF HIGHWAY 169.

&&

KAH

Special weather statement, Sep 26, 1:43 AM CDT, 13 minutes before

Special Weather Statement
National Weather Service Tulsa OK
143 AM CDT Thu Sep 26 2019

OKZ060>062-064-066>068-070-071-260730-
Tulsa OK-Muskogee OK-Okmulgee OK-Cherokee OK-Rogers OK-Creek OK-
Mayes OK-Wagoner OK-McIntosh OK-
143 AM CDT Thu Sep 26 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL ROGERS...EAST
CENTRAL CREEK...NORTH CENTRAL MCINTOSH...SOUTHWESTERN MAYES...
WAGONER...SOUTHERN CHEROKEE...NORTHERN MUSKOGEE...NORTHEASTERN
OKMULGEE AND SOUTHEASTERN TULSA COUNTIES UNTIL 230 AM CDT...

At 142 AM CDT, strong thunderstorms were located along a line
extending from 6 miles southeast of Inola to 2 miles south of
Glenpool. Movement was southeast at 30 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations in or near the path include...
Tulsa...                          Broken Arrow...
Muskogee...                       Tahlequah...
Wagoner...                        Bixby...
Jenks...                          Glenpool...
Coweta...                         Fort Gibson...
Haskell...                        Inola...
Kiefer...                         Morris...
Mounds...                         Okay...
Hulbert...                        Porter...
Taft...                           Boynton...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
southeastern, northeastern and east central Oklahoma.

LAT...LON 3578 9486 3551 9579 3594 9614 3616 9538
TIME...MOT...LOC 0642Z 318DEG 27KT 3610 9542 3592 9602

Local storm report, Sep 26, 1:45 AM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
145 AM CDT THU SEP 26 2019

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

0129 AM     FLASH FLOOD      2 N BROKEN ARROW        36.08N 95.79W
09/26/2019                   TULSA              OK   PUBLIC

            STREET FLOODING REPORTED VIA MPING.

&&

KAH

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 25, 7:57 PM CDT	River Flood Advisory	TSA	Cherokee, Delaware	13 hr
Sep 25, 9:21 PM CDT	Special Weather Statement	TSA	Rogers	24 min
Sep 25, 9:45 PM CDT	Special Weather Statement	TSA	Ottawa	45 min
Sep 25, 9:52 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	33 min
Sep 25, 10:00 PM CDT	Special Weather Statement	TSA	Ottawa	45 min
Sep 25, 10:09 PM CDT	Special Weather Statement	TSA	Craig	36 min
Sep 25, 10:10 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	50 min
Sep 25, 10:36 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	39 min
Sep 25, 10:40 PM CDT	Special Weather Statement	TSA	Craig, Nowata	50 min
Sep 25, 10:44 PM CDT	Areal Flood Advisory	TSA	Craig, Delaware, Ottawa	3 hr
Sep 25, 10:59 PM CDT	Flash Flood Warning	TSA	Ottawa	4 hr
Sep 25, 11:11 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Rogers	34 min
Sep 25, 11:14 PM CDT	Special Weather Statement	TSA	Delaware	31 min
Sep 25, 11:16 PM CDT	Special Weather Statement	TSA	Osage	44 min
Sep 25, 11:28 PM CDT	Areal Flood Advisory	TSA	Craig, Nowata, Osage, Washington	3 hr
Sep 25, 11:32 PM CDT	Special Weather Statement	TSA	Craig, Nowata, Ottawa, Washington	43 min
Sep 25, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa	49 min
Sep 25, 11:48 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	27 min
Sep 25, 11:49 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	26 min
Sep 26, 12:06 AM CDT	Flash Flood Warning	TSA	Craig, Nowata, Rogers	4 hr
Sep 26, 12:09 AM CDT	Severe Thunderstorm Warning	TSA	Mayes, Nowata, Rogers, Washington	51 min
Sep 26, 12:12 AM CDT	Special Weather Statement	TSA	Osage, Pawnee	33 min
Sep 26, 12:21 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	39 min
Sep 26, 12:34 AM CDT	Special Weather Statement	TSA	Delaware, Mayes	41 min
Sep 26, 12:59 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Osage, Pawnee, Rogers, Tulsa and 2 more	46 min
Sep 26, 1:17 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	43 min
Sep 26, 1:30 AM CDT	Areal Flood Advisory	TSA	Rogers, Tulsa, Wagoner	3 hr
Sep 26, 1:43 AM CDT	Special Weather Statement	TSA	Wagoner	47 min
Sep 26, 2:26 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	49 min
Sep 26, 3:57 AM CDT	Special Weather Statement	TSA	Latimer, LeFlore, Pittsburg, Pushmataha	48 min
Sep 26, 5:40 AM CDT	Areal Flood Advisory	TSA	Osage, Tulsa	3 hr
Sep 26, 6:30 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg	3 hr
Sep 26, 7:11 AM CDT	Flash Flood Warning	TSA	Creek, Osage, Pawnee, Tulsa, Wagoner	5 hr
Sep 26, 8:49 AM CDT	River Flood Advisory	TSA	Cherokee	36 hr
Sep 26, 9:35 AM CDT	Areal Flood Advisory	TSA	Latimer, McIntosh, Okfuskee, Pittsburg	115 min
Sep 26, 10:36 AM CDT	Flash Flood Warning	TSA	Latimer, Pittsburg	3 hr
Sep 25, 11:44 PM CDT	Special Weather Statement	TSA	Benton	46 min
Sep 26, 2:45 AM CDT	Special Weather Statement	TSA	Madison	45 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2019 Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.