Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 121, NWS Tulsa, OK

May 21, 20195 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 21, 2019, 7:54 AM CDT for 5 counties in Oklahoma. It was in force for 66 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: May 21, 2019, 7:54 AM CDT (12:54 UTC)
Expired: May 21, 2019, 9:00 AM CDT
In force: 66 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Haskell County, OK, Latimer County, OK, McIntosh County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 104 km from the middle of the area, began a volume at 12:57 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
May 21, 5:09 AM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 0.9 hours before the alert went out and 181 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 742 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: -157 m²/s²
0-3 km storm-relative helicity: -324 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 21, 4:05 AM CDT, 3 hours 49 minutes earlier.

Area forecast discussion, May 21, 4:05 AM CDT, 3 hours 49 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
405 AM CDT Tue May 21 2019

.DISCUSSION...
A major flooding event is ongoing across northeast Oklahoma early
this morning, and this will only be exacerbated by the final wave
of precipitation which is now beginning to spread into the far
western part of our forecast area. This final wave will sweep
across the entire forecast area this morning into early afternoon.
A damaging wind threat will exist with the leading edge of this
complex, and an isolated brief tornado cannot be ruled out,
especially within the undisturbed warm sector. Will maintain the
flash flood watch for today as is.

Skies will clear later this afternoon and early evening, but the
quiet weather will not last long. Scattered convection is likely
to redevelop as early as Wednesday afternoon as low level moisture
surges back north across the area. A warm and humid airmass will
then reside over the area for the rest of the forecast period
under persistent southwest flow aloft. Shower and thunderstorm
chances will exist each day through at least Sunday, especially
across northeast Oklahoma, where additional rainfall is not
needed.

Stayed close to guidance temperatures the next couple days.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   77  57  85  71 / 100  10  20  30
FSM   78  59  88  72 / 100  10  20  20
MLC   78  60  87  73 / 100   0  20  20
BVO   76  53  84  69 / 100  10  20  30
FYV   73  57  84  67 / 100  10  20  20
BYV   76  58  86  68 / 100  10  10  20
MKO   77  59  86  71 / 100  10  20  20
MIO   72  57  84  69 / 100  10  20  30
F10   78  59  85  71 / 100   0  30  20
HHW   77  60  88  73 / 100   0  20  20

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch through this evening for OKZ054>074.

AR...Flash Flood Watch through this evening for ARZ001-002-010-011.

&&

SHORT TERM...18
LONG TERM....05

PLATE

Hazardous weather outlook, May 21, 5:15 AM CDT, 2 hours 39 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
515 AM CDT Tue May 21 2019

ARZ001-002-010-011-019-020-029-OKZ049-053>076-221015-
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-
515 AM CDT Tue May 21 2019

...Severe Storms Possible This Morning and Afternoon...

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...Eastern Oklahoma and northwest Arkansas.
	ONSET...Ongoing eastern Oklahoma...late morning for northwest
    Arkansas.

SEVERE THUNDERSTORM.
	RISK...Elevated.
	AREA...Eastern Oklahoma and northwest Arkansas.
	ONSET...Ongoing eastern Oklahoma...late morning for northwest
    Arkansas.

FLASH FLOOD.
	RISK...Elevated.
	AREA...Northeast Oklahoma.
	ONSET...Ongoing.

HEAVY RAIN.
	RISK...Elevated.
	AREA...Eastern Oklahoma and northwest Arkansas.
	ONSET...Ongoing eastern Oklahoma...late morning for northwest
    Arkansas.

DISCUSSION...
A line of strong to severe thunderstorms across central Oklahoma
was moving into eastern Oklahoma early this morning. Locally
damaging winds gusts and leading edge tornadoes will be possible
early across eastern Oklahoma, with the threat shifting farther
east into far eastern Oklahoma and western Arkansas later this
morning.

Widespread flooding and flash flooding is ongoing this morning
across much of northeast Oklahoma. Additional heavy rainfall will
occur this morning and into the afternoon, which will further
worsen the flooding situation.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY...Thunderstorm Potential.
THURSDAY...Thunderstorm Potential...High Wind Potential.
FRIDAY through SUNDAY...Thunderstorm Potential.
MONDAY...No Hazards.

EXTENDED DISCUSSION...
Thunderstorm chances will continue this week mainly across parts
of northeast Oklahoma. Organized severe weather does not appear
likely however.

weather.gov/tulsa contains additional information.

In the hours before

Local storm report, May 21, 7:17 AM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
717 AM CDT TUE MAY 21 2019

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

0710 AM     HAIL             2 WSW FOYIL             36.42N 95.55W
05/21/2019  E1.00 INCH       ROGERS             OK   PUBLIC

&&

RJS

Local storm report, May 21, 7:21 AM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
721 AM CDT TUE MAY 21 2019

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

0705 AM     HAIL             CLAREMORE               36.31N 95.62W
05/21/2019  E1.00 INCH       ROGERS             OK   TRAINED SPOTTER

            SPOTTER REPORTS 1 INCH HAIL NORTH OF CLAREMORE NEAR
            HIGHWAY 88 AND 420 RD.

0635 AM     TSTM WND DMG     TULSA                   36.13N 95.92W
05/21/2019                   TULSA              OK   BROADCAST MEDIA

            DAMAGE AT NEWTON AND ST. LOUIS ST IN TULSA. POLICE AND
            FIRE ON SCENE. PICTURES RECEIVED VIA SOCIAL MEDIA.

0657 AM     HAIL             1 NNW CLAREMORE         36.33N 95.62W
05/21/2019  E0.88 INCH       ROGERS             OK   TRAINED SPOTTER

            SPOTTER OBSERVED 1 INCH HAIL FALLING NEAR BLUESTARR DRIVE
            IN CLAREMORE. HAIL LASTED 2 MINUTES.

0652 AM     TORNADO          OWASSO                  36.27N 95.85W
05/21/2019                   TULSA              OK   EMERGENCY MNGR

            EMERGENCY MANAGEMENT REPORTED BRIEF TOUCHDOWN NEAR
            TCC/TULSA TECH NEAR 106TH STREET AND HIGHWAY 169.

0637 AM     TORNADO          TULSA INTERNATIONAL AIR 36.21N 95.90W
05/21/2019                   TULSA              OK   OTHER FEDERAL

            RADAR CONFIRMED TORNADO NEAR TULSA INTERNATIONAL AIRPORT.
            TORNADIC DEBRIS SIGNATURE NOTED IN RADAR DATA.

0635 AM     TSTM WND DMG     TULSA                   36.13N 95.92W
05/21/2019                   TULSA              OK   FIRE DEPT/RESCUE

            TULSA FIRE DEPARTMENT REPORTS THAT LARGE TREE IS DOWN
            BLOCKING NEWTON STREET NEAR N. ST. LOUIS STREET. RECEIVED
            VIA SOCIAL MEDIA.

&&

SJC

Local storm report, May 21, 7:25 AM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
725 AM CDT TUE MAY 21 2019

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

0639 AM     TSTM WND GST     4 N BIXBY               36.00N 95.88W
05/21/2019  E60.00 MPH       TULSA              OK   TRAINED SPOTTER

            SPOTTER REPORTS 60 MPH WIND GUSTS NORTH OF BIXBY.

&&

SJC

Local storm report, May 21, 7:36 AM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
736 AM CDT TUE MAY 21 2019

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

0627 AM     TSTM WND DMG     TULSA                   36.13N 95.92W
05/21/2019                   TULSA              OK   LAW ENFORCEMENT

            TULSA POLICE DEPT REPORTED MAN TRAPPED IN A HOUSE NEAR ST
            LOUIS/NEWTON IN TULSA. ROADS ARE BLOCKED BY DEBRIS AND
            TREES. POSSIBLE TORNADO DAMAGE.

&&

SJC

Local storm report, May 21, 7:47 AM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
747 AM CDT TUE MAY 21 2019

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

0743 AM     FLOOD            1 W VINITA              36.64N 95.17W
05/21/2019                   CRAIG              OK   TRAINED SPOTTER

            HIGHWAY 69 AND HIGHWAY 60 CLOSED DUE TO FLOODING.

&&

RJS

Local storm report, May 21, 7:48 AM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
748 AM CDT TUE MAY 21 2019

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

0600 AM     TORNADO          SAPULPA                 36.00N 96.11W
05/21/2019                   CREEK              OK   PUBLIC

            PUBLIC REPORTED TORNADO TOUCHED DOWN AT 6 AM ON HIGHWAY
            97 NEXT TO 71 STREET IN SAPULPA. PICTURES RECEIVED VIA
            SOCIAL MEDIA.

&&

SJC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 7:43 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	47 min
May 20, 8:03 PM CDT	Tornado Warning	TSA	Creek, Pawnee	42 min
May 20, 8:23 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee, Tulsa, Washington	52 min
May 20, 8:39 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa, Rogers	66 min
May 20, 8:42 PM CDT	Special Weather Statement	TSA	Okmulgee	48 min
May 20, 8:46 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Osage, Pawnee, Rogers, Tulsa and 2 more	59 min
May 20, 8:49 PM CDT	Flash Flood Warning	TSA	Creek, Mayes, Osage, Pawnee, Rogers, Tulsa and 1 more	6 hr
May 20, 9:06 PM CDT	Tornado Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	39 min
May 20, 9:06 PM CDT	Tornado Warning	TSA	Creek, Osage, Tulsa	24 min
May 20, 9:39 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	40 min
May 20, 9:45 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	60 min
May 20, 9:57 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	63 min
May 20, 9:58 PM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, Mayes	3 hr
May 20, 10:07 PM CDT	Tornado Warning	TSA	Okmulgee, Tulsa, Wagoner	38 min
May 20, 10:08 PM CDT	Tornado Warning	TSA	Cherokee, Mayes, Wagoner	52 min
May 20, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	43 min
May 20, 10:41 PM CDT	Tornado Warning EmergencyTornado observedConsiderable damage threat	TSA	Cherokee, Delaware, Mayes	49 min
May 20, 11:14 PM CDT	Flash Flood Warning Emergency	TSA	Osage, Pawnee, Tulsa, Washington	6 hr
May 20, 11:17 PM CDT	Special Weather Statement	TSA	Mayes, Okmulgee, Wagoner	58 min
May 20, 11:23 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	37 min
May 20, 11:36 PM CDT	Special Weather Statement	TSA	Delaware	24 min
May 20, 11:44 PM CDT	Flash Flood Warning Emergency	TSA	Mayes, Osage, Rogers, Tulsa, Wagoner	6 hr
May 21, 12:32 AM CDT	Special Weather Statement	TSA	Creek	28 min
May 21, 12:36 AM CDT	Areal Flood Warning	TSA	Osage	12 hr
May 21, 12:57 AM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, Mayes	6 hr
May 21, 1:05 AM CDT	Flash Flood Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	6 hr
May 21, 1:38 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee	27 min
May 21, 1:44 AM CDT	Special Weather Statement	TSA	Tulsa	31 min
May 21, 2:12 AM CDT	Special Weather Statement	TSA	Tulsa	33 min
May 21, 2:38 AM CDT	Flash Flood Warning	TSA	Creek, Tulsa	6 hr
May 21, 2:42 AM CDT	Flash Flood Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers and 1 more	6 hr
May 21, 2:48 AM CDT	Special Weather Statement	TSA	Tulsa	27 min
May 21, 4:25 AM CDT	Special Weather Statement	TSA	Osage	50 min
May 21, 4:51 AM CDT	Flash Flood Warning	TSA	Osage	6 hr
May 21, 4:59 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	46 min
May 21, 5:07 AM CDT	Flash Flood Warning	TSA	Osage, Pawnee, Tulsa, Washington	6 hr
May 21, 5:24 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa	51 min
May 21, 5:27 AM CDT	Flash Flood Warning	TSA	Mayes, Osage, Rogers, Tulsa, Wagoner	6 hr
May 21, 6:00 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Mayes, Muskogee, Okfuskee, Okmulgee, Osage and 4 more	60 min
May 21, 6:17 AM CDT	Tornado Warning	TSA	Rogers, Tulsa	43 min
May 21, 6:18 AM CDT	Tornado Warning	TSA	Osage	17 min
May 21, 6:21 AM CDT	Special Weather Statement	TSA	McIntosh	54 min
May 21, 6:43 AM CDT	Tornado Warning	TSA	Mayes, Nowata, Rogers, Tulsa, Washington	47 min
May 21, 6:53 AM CDT	Flash Flood Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	3 hr
May 21, 6:53 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers, Wagoner, Washington	67 min
May 21, 7:03 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Mayes, Muskogee, Okmulgee, Pittsburg and 1 more	57 min
May 21, 7:24 AM CDT	Tornado Warning	TSA	Craig, Mayes, Rogers	25 min
May 21, 7:27 AM CDT	Tornado Warning	TSA	Pittsburg	48 min
May 21, 7:33 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa	57 min
May 21, 7:52 AM CDT	Flash Flood Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers and 1 more	3 hr
May 21, 7:59 AM CDT	Special Weather Statement	TSA	Cherokee, Muskogee	46 min
May 21, 8:34 AM CDT	Special Weather Statement	TSA	Delaware	56 min
May 21, 8:39 AM CDT	Areal Flood Warning	TSA	Creek, Tulsa	24 hr
May 21, 8:42 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha	63 min
May 21, 8:43 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, Sequoyah	47 min
May 21, 8:49 AM CDT	Areal Flood Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers and 1 more	24 hr
May 21, 8:57 AM CDT	Tornado Warning	TSA	Latimer, LeFlore, Pushmataha	18 min
May 21, 9:02 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, Muskogee, Sequoyah	58 min
May 21, 9:07 AM CDT	Special Weather Statement	TSA	Choctaw	53 min
May 21, 9:14 AM CDT	Flash Flood Warning	TSA	Cherokee, Delaware, Mayes	3 hr
May 21, 9:40 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha, Sequoyah	65 min
May 21, 9:43 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	62 min
May 21, 10:26 AM CDT	Areal Flood Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	24 hr
May 21, 10:40 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	65 min
May 21, 10:54 AM CDT	Areal Flood Warning	TSA	Osage, Pawnee, Tulsa, Washington	24 hr
May 21, 11:25 AM CDT	Areal Flood Warning	TSA	Cherokee, Creek, Delaware, Mayes, Osage, Rogers and 2 more	24 hr
May 21, 11:29 AM CDT	River Flood Warning	TSA	Tulsa	5 hr
May 21, 12:07 PM CDT	River Flood Warning	TSA	Tulsa	11 days
May 21, 12:07 PM CDT	River Flood Warning	TSA	Muskogee, Wagoner	12 days
May 21, 2:00 PM CDT	Flash Flood Warning	TSA	Mayes	24 hr
May 21, 2:08 PM CDT	Flash Flood Warning	TSA	Mayes, Wagoner	24 hr
May 21, 2:56 PM CDT	River Flood Warning	TSA	Sequoyah	17 days
May 20, 11:15 PM CDT	Severe Thunderstorm Warning	TSA	Benton	60 min
May 21, 12:11 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	64 min
May 21, 1:07 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	27 min
May 21, 1:35 AM CDT	Special Weather Statement	TSA	Carroll	25 min
May 21, 9:31 AM CDT	Special Weather Statement	TSA	Benton	44 min
May 21, 9:57 AM CDT	Areal Flood Advisory	TSA	Benton, Crawford, Sebastian, Washington	4 hr
May 21, 10:43 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	62 min
May 21, 10:55 AM CDT	Special Weather Statement	TSA	Crawford	50 min

Nearby

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.