Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 289, NWS Tulsa, OK

May 19, 2017Muskogee County, Okmulgee County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 19, 2017, 8:28 PM CDT for Muskogee County, Okmulgee County, Wagoner County, Oklahoma. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 19, 2017, 8:28 PM CDT (01:28 UTC)
Expired: May 19, 2017, 9:15 PM CDT
In force: 47 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Muskogee County, OK, Okmulgee County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 38 km from the middle of the area, began a volume at 01:32 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 19, 3:26 PM CDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.5 hours before the alert went out and 177 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: 1427 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -186 m²/s²
0-3 km storm-relative helicity: -113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

652 
WUUS54 KTSA 200128
SVRTSA
OKC101-111-145-200215-
/O.NEW.KTSA.SV.W.0289.170520T0128Z-170520T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
828 PM CDT FRI MAY 19 2017

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southern Wagoner County in northeastern Oklahoma...
  Northern Muskogee County in east central Oklahoma...
  Northeastern Okmulgee County in northeastern Oklahoma...

* Until 915 PM CDT

* At 828 PM CDT, a severe thunderstorm was located 4 miles south of
  Haskell, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations in or near the path include...
  Muskogee...                       Wagoner...
  Coweta...                         Fort Gibson...
  Haskell...                        Okay...
  Porter...                         Braggs...
  Taft...                           Boynton...
  Tullahassee...                    Stonebluff...
  Greenleaf State Park...           Wainwright...
  Summit...                         Redbird...
  Jamesville...                     Choska...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1100 PM CDT for east central
Oklahoma.

LAT...LON 3598 9526 3597 9528 3593 9527 3592 9528
      3590 9528 3588 9525 3586 9523 3582 9527
      3581 9519 3563 9513 3561 9575 3588 9581
      3608 9531 3607 9530
TIME...MOT...LOC 0128Z 239DEG 31KT 3576 9567 

HAIL...1.00IN
WIND...60MPH
 
$$

2 follow-up statements

271 
WWUS54 KTSA 200150
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
850 PM CDT FRI MAY 19 2017

OKC111-200200-
/O.CAN.KTSA.SV.W.0289.000000T0000Z-170520T0215Z/
Okmulgee OK-
850 PM CDT FRI MAY 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OKMULGEE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area therefore the warning has been cancelled.

A tornado watch remains in effect until 1100 PM CDT for east central
Oklahoma.

LAT...LON 3598 9526 3597 9528 3593 9527 3592 9528
      3590 9528 3588 9525 3586 9523 3582 9527
      3581 9519 3563 9513 3562 9559 3593 9568
      3608 9531 3607 9530
TIME...MOT...LOC 0150Z 247DEG 30KT 3581 9545 

$$

OKC101-145-200215-
/O.CON.KTSA.SV.W.0289.000000T0000Z-170520T0215Z/
Wagoner OK-Muskogee OK-
850 PM CDT FRI MAY 19 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHEASTERN WAGONER AND NORTHERN MUSKOGEE COUNTIES...

At 850 PM CDT, a severe thunderstorm was located near Tullahassee,
moving northeast at 35 mph.

HAZARD...60 mph wind gusts and penny size hail. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations in or near the path include...
Muskogee...                       Wagoner...
Coweta...                         Fort Gibson...
Okay...                           Porter...
Braggs...                         Taft...
Tullahassee...                    Greenleaf State Park...
Summit...                         Redbird...
Choska...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until 1100 PM CDT for east central
Oklahoma.

LAT...LON 3598 9526 3597 9528 3593 9527 3592 9528
      3590 9528 3588 9525 3586 9523 3582 9527
      3581 9519 3563 9513 3562 9559 3593 9568
      3608 9531 3607 9530
TIME...MOT...LOC 0150Z 247DEG 30KT 3581 9545 

HAIL...0.75IN
WIND...60MPH
 
$$

916 
WWUS54 KTSA 200211
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
911 PM CDT FRI MAY 19 2017

OKC101-145-200221-
/O.EXP.KTSA.SV.W.0289.000000T0000Z-170520T0215Z/
Wagoner OK-Muskogee OK-
911 PM CDT FRI MAY 19 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAGONER AND
NORTHERN MUSKOGEE COUNTIES WILL EXPIRE AT 915 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However gusty 
winds to 40 mph and heavy rain are still possible with this 
thunderstorm.

A tornado watch remains in effect until 1100 PM CDT for east central
Oklahoma.

LAT...LON 3598 9526 3597 9528 3593 9527 3592 9528
      3590 9528 3588 9525 3586 9523 3582 9527
      3581 9519 3563 9513 3562 9559 3593 9568
      3608 9531 3607 9530
TIME...MOT...LOC 0211Z 239DEG 31KT 3590 9527 

$$

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 19, 6:07 PM CDT, 2 hours 21 minutes earlier.

Area forecast discussion, May 19, 6:07 PM CDT, 2 hours 21 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
607 PM CDT Fri May 19 2017

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Ongoing convection along the I-44 corridor is expected to increase
in coverage and spread eastward through the evening and early
morning hours. Aviation impacts should be expected with additional
lower ceilings following the frontal passage across all terminals
through the morning hours. VFR conditions are likely by Sat
afternoon.

&&

.PREV DISCUSSION... /Issued 324 PM CDT Fri May 19 2017/

DISCUSSION...
Latest surface analysis shows a stalled front across western
Oklahoma with various convective boundaries across the area.
Strong to severe storms are ongoing across northwest Arkansas.
More storms are approaching the area from southern and central
Oklahoma and this marks the next wave. Tornado watch will be
issued shortly.

Latest model guidance and radar trends would suggest the heaviest
rain will be across southeast Oklahoma and western Arkansas.
However with front and upper trough still west of the area, and
ongoing convection, will maintain flash flood watch and add
Pushmataha/Choctaw counties to the watch. The main severe threat
will be damaging winds and isolated tornadoes where storms can
take advantage of existing boundaries/increased SRH. Flash
flooding will also be a threat with another 1-3 inches of rain
possible, with the heaviest rains likely along and south of
Interstate 40.

Precipitation will end across eastern Oklahoma and northwest
Arkansas Saturday morning, with clearing from west to east by
Saturday afternoon. Cold front may make it to our western zones
by Saturday morning, and have lowered min temps a bit for this
possibility. Weather will be much improved by Sunday with light
winds and highs in the 70s. Overnight lows will be chilly by
Sunday morning, ranging from the mid to upper 40s across
northeast Oklahoma/northwest Arkansas to mid 50s across southeast
Oklahoma.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   57  72  51  77 /  90  20   0   0
FSM   68  76  52  79 / 100  50   0   0
MLC   62  74  52  78 / 100  30   0   0
BVO   55  70  45  76 /  90  20   0   0
FYV   63  71  47  74 /  80  40   0   0
BYV   64  74  49  74 /  80  40   0   0
MKO   62  72  51  77 /  90  30   0   0
MIO   62  72  48  75 /  90  20   0   0
F10   61  73  51  77 /  90  20   0   0
HHW   66  76  55  80 / 100  60   0   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch through Saturday morning for OKZ049-053>076.

AR...Flash Flood Watch through Saturday morning for ARZ001-002-010-
     011-019-020-029.

&&

AVIATION...07

Hazardous weather outlook, May 19, 4:54 PM CDT, 3 hours 34 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
454 PM CDT Fri May 19 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-201030-
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-
454 PM CDT Fri May 19 2017

...SEVERE WEATHER AND FLOOD POTENTIAL CONTINUES THRU 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....Along and especially southeast of Interstate 44.
	ONSET...Ongoing.

SEVERE THUNDERSTORM.
	RISK...Significant.
	AREA...Eastern Oklahoma and Western Arkansas.
	ONSET...Ongoing.

	AREA AT GREATEST RISK...Southeast of Interstate 44.

FLASH FLOOD.
	RISK...Elevated.
	AREA...Primarily along and southeast of Interstate 44.
	ONSET...Ongoing.

HEAVY RAIN.
	RISK...Significant.
	AREA...Primarily along and southeast of Interstate 44.
	ONSET...Ongoing.

DISCUSSION...
There is an enhanced risk of severe thunderstorms through this
evening along and south of I-40 across Southeast Oklahoma into
West Central Arkansas. There is a slight risk of severe
thunderstorms across Northeast Oklahoma and Northwest Arkansas
through this evening. Damaging winds and large hail are the main
threats. Isolated tornadoes are possible where storms interact
with lingering boundaries, or with any bowing line segments late
this afternoon and into the evening.

Storms will continue to form along and southeast of Interstate 44
late this afternoon, likely remaining elevated in nature. Several
clusters of storms will continue to lift northeast across Eastern Oklahoma
and Western Arkansas through tonight. Other scattered storms may
develop near a developing surface low or trough and ahead of the
cold front across North Central Oklahoma either late this
afternoon or into the evening and will move across generally far
Northeast Oklahoma this evening. The better probability for
surface-based updraft development, and threat of isolated
tornadoes, remains across southeast Oklahoma and west central
Arkansas south of an outflow boundary. A locally enhanced tornado
threat will exist with storms that can interact with this
boundary.

There were multiple swaths of 2 to 4 inch rains across Eastern
Oklahoma from last night's convection. Depending on how convection
evolves today and whether this convection tracks over these same
areas, there will be a flash flood threat. There may be some river
flooding that occurs as well, but this will depend on the basins
where the heavy rains fall. At this time, the heavier rains are
more likely to fall generally near and south of I-44.

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

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY...Severe Thunderstorm Potential.
SUNDAY...No Hazards.
MONDAY through TUESDAY...Thunderstorm Potential.
WEDNESDAY through THURSDAY...No Hazards.

EXTENDED DISCUSSION...
Showers and thunderstorms will end from west to east during the
day Saturday. The next storm system will affect the area Monday
into Tuesday bringing a chance of thunderstorms, but only a
limited risk of severe weather.

weather.gov/tulsa Contains additional information.

In the hours before

Special weather statement, May 19, 7:22 PM CDT, 1 hour 6 minutes before

Special Weather Statement
National Weather Service Tulsa OK
722 PM CDT FRI MAY 19 2017

OKZ060-061-067-200045-
Tulsa OK-Rogers OK-Wagoner OK-
722 PM CDT FRI MAY 19 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL ROGERS...
NORTHWESTERN WAGONER AND SOUTHEASTERN TULSA COUNTIES UNTIL 745 PM
CDT...

At 722 PM CDT, strong thunderstorms were located along a line
extending from Tulsa to 3 miles east of Mounds. Movement was
northeast 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...                          Broken Arrow...
Owasso...                         Bixby...
Jenks...                          Glenpool...
Catoosa...                        Liberty...
Leonard...

This includes Interstate 44 between mile markers 220 and 237.

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.

&&

LAT...LON 3633 9572 3586 9575 3585 9592 3586 9592
      3586 9603 3617 9600
TIME...MOT...LOC 0022Z 223DEG 31KT 3615 9597 3586 9600

Local storm report, May 19, 7:36 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
736 PM CDT FRI MAY 19 2017

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

0730 PM     TSTM WND DMG     TULSA                   36.13N 95.92W
05/19/2017                   TULSA              OK   PUBLIC

            LARGE TREE LIMB DOWNED AT 51ST AND ST LOUIS.

&&

KAH

Local storm report, May 19, 7:38 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
738 PM CDT FRI MAY 19 2017

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

0738 PM     FLASH FLOOD      2 S KIEFER              35.92N 96.07W
05/19/2017                   CREEK              OK   TRAINED SPOTTER

            FLOODING ON HIGHWAY 75A BETWEEN 161ST STREET SOUTH AND
            171ST STREET SOUTH.

&&

KAH

Local storm report, May 19, 8:02 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
802 PM CDT FRI MAY 19 2017

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

0745 PM     TSTM WND GST     3 NW BIXBY              35.97N 95.92W
05/19/2017  E60 MPH          TULSA              OK   TRAINED SPOTTER

&&

KAH

Local storm report, May 19, 8:12 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
812 PM CDT FRI MAY 19 2017

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

0806 PM     TSTM WND GST     3 N CLAREMORE           36.36N 95.62W
05/19/2017  E60 MPH          ROGERS             OK   TRAINED SPOTTER

&&

JDS

Local storm report, May 19, 8:13 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
813 PM CDT FRI MAY 19 2017

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

0809 PM     TSTM WND GST     5 W PRYOR               36.31N 95.41W
05/19/2017  E60 MPH          MAYES              OK   EMERGENCY MNGR

&&

JDS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 7:06 PM CDT	Flash Flood Warning	TSA	Cherokee, Creek, Mayes, Muskogee, Okmulgee, Rogers and 2 more	7 hr
May 19, 7:13 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	47 min
May 19, 7:16 PM CDT	Special Weather Statement	TSA	Delaware	29 min
May 19, 7:22 PM CDT	Special Weather Statement	TSA	Tulsa	23 min
May 19, 7:40 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more	50 min
May 19, 8:02 PM CDT	Flash Flood Warning	TSA	Cherokee, Delaware, Mayes, Ottawa	6 hr
May 19, 8:14 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Craig, Delaware, Mayes, Ottawa	61 min
May 19, 8:46 PM CDT	River Flood Warning	TSA	Adair, Delaware	35 hr
May 19, 8:46 PM CDT	River Flood Warning	TSA	Cherokee	56 hr
May 19, 9:00 PM CDT	Flash Flood Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg	6 hr
May 19, 9:03 PM CDT	Special Weather Statement	TSA	McIntosh	57 min
May 19, 9:09 PM CDT	Special Weather Statement	TSA	Ottawa	51 min
May 19, 9:40 PM CDT	Special Weather Statement	TSA	Adair, Cherokee	50 min
May 19, 9:50 PM CDT	River Flood Warning	TSA	Okmulgee	5 days
May 19, 9:51 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	39 min
May 19, 9:55 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Muskogee, Sequoyah	6 hr
May 19, 10:28 PM CDT	Special Weather Statement	TSA	Pittsburg	32 min
May 19, 10:39 PM CDT	Special Weather Statement	TSA	Adair	36 min
May 19, 11:01 PM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	6 hr
May 19, 11:03 PM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Sequoyah	6 hr
May 19, 11:06 PM CDT	Severe Thunderstorm Warning	TSA	Adair	23 min
May 20, 12:47 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	43 min
May 20, 1:47 AM CDT	Special Weather Statement	TSA	Choctaw, Pushmataha	58 min
May 20, 1:51 AM CDT	Areal Flood Warning	TSA	Cherokee, Creek, Delaware, Mayes, Muskogee, Okfuskee and 5 more	18 hr
May 20, 2:20 AM CDT	Special Weather Statement	TSA	Latimer	55 min
May 20, 2:48 AM CDT	Special Weather Statement	TSA	LeFlore	57 min
May 20, 3:09 AM CDT	River Flood Advisory	TSA	Adair, Cherokee, Delaware	36 hr
May 20, 4:13 AM CDT	River Flood Warning	TSA	LeFlore	54 hr
May 20, 4:19 AM CDT	Flash Flood Warning	TSA	LeFlore, Pushmataha	4 hr
May 20, 8:55 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 3 more	36 hr
May 20, 8:58 AM CDT	River Flood Warning	TSA	Ottawa	46 hr
May 20, 8:58 AM CDT	River Flood Warning	TSA	Ottawa	45 hr
May 20, 9:30 AM CDT	River Flood Warning	TSA	Creek	17 hr
May 20, 9:30 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	16 hr
May 20, 9:41 AM CDT	River Flood Warning	TSA	Adair, Cherokee, Delaware	37 hr
May 20, 10:07 AM CDT	River Flood Warning	TSA	LeFlore	19 hr
May 20, 10:07 AM CDT	River Flood Warning	TSA	Sequoyah	18 hr
May 20, 2:39 PM CDT	River Flood Advisory	TSA	Cherokee, Delaware	12 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Every severe thunderstorm warning in 2017

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.