Alert archive / Oklahoma / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

August 17, 2017Choctaw County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 17, 2017, 2:02 AM CDT for Choctaw County, Oklahoma. It was in force for 28 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: Aug 17, 2017, 2:02 AM CDT (07:02 UTC)
Expired: Aug 17, 2017, 2:30 AM CDT
In force: 28 min
Issued by: NWS Tulsa, OK

County Choctaw County, OK

The radar

The Western Arkansas radar (KSRX), 184 km from the middle of the area, began a volume at 07:01 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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 7.0 hours before the alert went out and 189 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: 2168 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1105 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 17, 12:04 AM CDT, 1 hour 58 minutes earlier.

Area forecast discussion, Aug 17, 12:04 AM CDT, 1 hour 58 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1204 AM CDT Thu Aug 17 2017

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Line of showers and storms has weakened considerably from a few
hours ago, with outflow boundary well ahead of rain. Just light
showers are expected across NE Oklahoma. MVFR conditions will be
possible mainly at the NW Arkansas terminals over the next 2-3
hours, where ceilings/visibility may drop within heavy rain
areas. Otherwise, patchy fog may be possible at KBVO or KRVS
toward sunrise, with clearing expected from northwest to
southeast.

&&

.PREV DISCUSSION... /Issued 833 PM CDT Wed Aug 16 2017/

..UPDATE...

DISCUSSION...
Line of strong to severe thunderstorms continue to push into
northeast Oklahoma this evening with the threat for damaging winds
of 60-70 mph. Strongest cell moving through the Ralston area,
which is likely producing wind damage along leading edge of cold
pool. Convection should begin to slowly weaken as line approaches
the I-44 corridor where surface instability drops off. It appears
that band of storms is narrow and moving fast enough to not create
a significant threat for flooding at this time. Will continue to
monitor for now, but may be able to drop portions of the flash
flood watch depending on latest radar trends.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   70  92  70  89 /  80  10  20  30
FSM   76  90  72  90 /  70  40  10  40
MLC   76  91  73  90 /  90  30  20  30
BVO   69  90  65  89 /  20  10  20  30
FYV   72  86  64  85 / 100  30  10  40
BYV   72  87  64  89 /  70  30  10  30
MKO   72  90  70  88 /  90  20  20  40
MIO   70  87  65  88 /  70  10  10  30
F10   70  90  71  90 /  90  10  20  30
HHW   77  91  74  91 /  80  50  20  40

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch until 7 AM CDT Thursday for OKZ060>072.

AR...Flash Flood Watch until 7 AM CDT Thursday for ARZ001-002-010-011-
     019-020.

&&

LONG TERM....30
AVIATION...06

CORFIDI

Hazardous weather outlook, Aug 16, 9:25 PM CDT, 4 hours 37 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
925 PM CDT Wed Aug 16 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-171045-
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-
925 PM CDT Wed Aug 16 2017

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

.DAY ONE...Tonight.

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

FLASH FLOOD.
	RISK...Limited.
    AREA...Northeast Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

HEAVY RAIN.
	RISK...Limited.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

DISCUSSION...

Line of strong to severe thunderstorms, capable of producing wind
gusts to 60 mph will continue moving through northeast Oklahoma this
evening. Storms should begin to slowly weaken as line pushes south
if I-44 into a more stable air-mass. A few strong storms however
will remain possible with gusty winds as line moves into southeast
Oklahoma and northwest Arkansas overnight. Locally heavy rain will
also be likely with localized flooding in a few areas possible.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
THURSDAY...Thunderstorm Potential.
FRIDAY...Thunderstorm Potential...Heavy Rain Potential.
SATURDAY THROUGH MONDAY...Thunderstorm Potential...Dangerous Heat
						  Potential.
TUESDAY...Thunderstorm Potential.
WEDNESDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Thunderstorm chances will remain in the forecast Thursday across
Southeast Oklahoma and Northwest Arkansas as the cold front makes
its way through the region. A limited severe potential could be
possible over far Southeast Oklahoma ahead of the front.
Additional thunderstorm chances return Friday as an upper level
low pressure system moves across the Plains. Periods of heavy
rainfall will again be possible Friday with this next system.

A more typical August weather pattern looks to set up over the
weekend and into the start of next week. This will allow for warm
and humid conditions along with small daytime thunderstorm
chances to be possible across Eastern Oklahoma and Northwest
Arkansas this weekend into early next week.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Aug 16, 11:12 PM CDT, 2 hours 50 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1112 PM CDT WED AUG 16 2017

ARZ001-002-010-011-OKZ060>071-170515-
Madison AR-Benton AR-Carroll AR-Washington AR-Tulsa OK-Rogers OK-
Delaware OK-Okfuskee OK-Mayes OK-McIntosh OK-Adair OK-Muskogee OK-
Okmulgee OK-Cherokee OK-Wagoner OK-Creek OK-
1112 PM CDT WED AUG 16 2017

...SIGNIFICANT WEATHER ADVISORY FOR BENTON...NORTHWESTERN MADISON...
NORTHWESTERN CARROLL...CENTRAL WASHINGTON...SOUTH CENTRAL ROGERS...
SOUTHERN MAYES...ADAIR...CHEROKEE...SOUTHEASTERN TULSA...SOUTHERN
DELAWARE...SOUTHERN CREEK...NORTHERN MCINTOSH...WAGONER...MUSKOGEE...
OKMULGEE AND OKFUSKEE COUNTIES UNTIL 1215 AM CDT...

At 1111 PM CDT, strong thunderstorms were located along a line
extending from 3 miles south of Paden to 5 miles north of Bald Hill
to 8 miles south of Chouteau to near Oaks to near Hiwasse. Movement
was southeast at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations in or near the path include...
Broken Arrow...                   Fayetteville...
Springdale...                     Rogers...
Muskogee...                       Bentonville...
Tahlequah...                      Siloam Springs...
Okmulgee...                       Wagoner...
Berryville...                     Stilwell...
Okemah...                         Eureka Springs...
Bella Vista...                    Bixby...
Okfuskee...                       Coweta...
Lowell...                         Farmington...

This includes the following highways,
 Interstate 40 in Oklahoma between mile markers 212 and 265.
 Interstate 49 between mile markers 57 and 84, and between mile
markers 86 and 93.

A severe thunderstorm watch remains in effect until midnight CDT for
portions of northeastern Oklahoma.

LAT...LON 3578 9453 3570 9500 3522 9598 3529 9598
      3529 9644 3546 9644 3543 9650 3545 9655
      3539 9654 3540 9662 3566 9662 3619 9536
      3650 9430 3650 9339
TIME...MOT...LOC 0411Z 326DEG 18KT 3546 9655 3582 9582 3607 9530 3615
9483 3642 9431

Special weather statement, Aug 17, 12:22 AM CDT, 1 hour 40 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1222 AM CDT THU AUG 17 2017

ARZ010-019-OKZ068>076-170600-
Washington AR-Crawford AR-Haskell OK-Pittsburg OK-Adair OK-
Muskogee OK-Latimer OK-Sequoyah OK-Cherokee OK-Le Flore OK-
McIntosh OK-
1222 AM CDT THU AUG 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR CRAWFORD...SOUTHERN WASHINGTON...
HASKELL...CENTRAL MCINTOSH...SEQUOYAH...NORTHWESTERN LATIMER...
SOUTHERN ADAIR...NORTHWESTERN LE FLORE...SOUTHEASTERN CHEROKEE...
PITTSBURG AND SOUTHEASTERN MUSKOGEE COUNTIES UNTIL 100 AM CDT...

At 1221 AM CDT, strong thunderstorms were located along a line
extending from 2 miles southwest of Devils Den State Park to 4 miles
northwest of Mcalester. Movement was southeast at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations in or near the path include...
Fort Smith...                     Fayetteville...
Van Buren...                      Mcalester...
Sallisaw...                       Stilwell...
Wilburton...                      Eufaula...
Stigler...                        Cedarville...
Mountainburg...                   Natural Dam...
Muldrow...                        Roland...
Elkins...                         West Fork...
Hartshorne...                     Krebs...
Warner...                         Vian...

This includes the following highways,
 Interstate 40 in Arkansas between mile markers 0 and 4.
 Interstate 40 in Oklahoma between mile markers 268 and 328.
 Interstate 49 between mile markers 25 and 58.

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 3459 9571 3459 9581 3505 9608 3515 9598
      3523 9598 3610 9401 3589 9395 3576 9396
      3575 9391
TIME...MOT...LOC 0521Z 295DEG 288KT 3575 9429 3499 9581

Special weather statement, Aug 17, 1:01 AM CDT, 1 hour 1 minute before

Special Weather Statement
National Weather Service Tulsa OK
101 AM CDT THU AUG 17 2017

OKZ049-070>076-170630-
Haskell OK-Pittsburg OK-Muskogee OK-Latimer OK-Sequoyah OK-
Pushmataha OK-Le Flore OK-McIntosh OK-
101 AM CDT THU AUG 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR HASKELL...NORTHWESTERN
PUSHMATAHA...SOUTHEASTERN MCINTOSH...SEQUOYAH...LATIMER...NORTHERN LE
FLORE...PITTSBURG AND SOUTHEASTERN MUSKOGEE COUNTIES UNTIL 130 AM
CDT...

At 101 AM CDT, strong thunderstorms were located along a line
extending from near Cedarville to 4 miles east of Haywood. Movement
was southeast at 25 mph.

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

Locations in or near the path include...
Mcalester...                      Sallisaw...
Wilburton...                      Eufaula...
Stigler...                        Muldrow...
Spiro...                          Hartshorne...
Krebs...                          Vian...
Panama...                         Quinton...
Kiowa...                          Porum...
Savanna...                        Keota...
Red Oak...                        McCurtain...
Bokoshe...                        Crowder...

This includes Interstate 40 in Oklahoma between mile markers 286 and
322.

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 3441 9576 3444 9578 3450 9578 3451 9567
      3459 9567 3459 9588 3468 9588 3468 9596
      3486 9609 3505 9609 3564 9480 3564 9468
      3530 9446
TIME...MOT...LOC 0601Z 290DEG 71KT 3559 9437 3489 9587

Local storm report, Aug 17, 1:21 AM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
121 AM CDT THU AUG 17 2017

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

0107 AM     TSTM WND DMG     1 S MCALESTER           34.92N 95.77W
08/17/2017                   PITTSBURG          OK   PUBLIC

            3 INCH TREE LIMBS AND POWER POLES BROKEN.

&&

BLH

Special weather statement, Aug 17, 1:37 AM CDT, 25 minutes before

Special Weather Statement
National Weather Service Tulsa OK
137 AM CDT THU AUG 17 2017

OKZ072-074-076-170700-
Haskell OK-Sequoyah OK-Le Flore OK-
137 AM CDT THU AUG 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL HASKELL...
SOUTHEASTERN SEQUOYAH AND NORTHEASTERN LE FLORE COUNTIES UNTIL 200 AM
CDT...

At 136 AM CDT, outflow from strong thunderstorm were located along a
line extending from 3 miles northeast of Roland to near Gans to 3
miles northwest of Bokoshe to 4 miles southeast of McCurtain.
Movement was southeast at 30 mph.

Wind gusts up to 50 mph will be possible.

Locations in or near the path include...
Poteau...                         Pocola...
Muldrow...                        Roland...
Spiro...                          Arkoma...
Panama...                         Bokoshe...
Fanshawe...                       Cameron...
Moffett...                        Shady Point...
Rock Island...                    Scullyville...
Braden...                         Cottonwood...
Milton...

This includes Interstate 40 in Oklahoma between mile markers 317 and
327.

LAT...LON 3499 9445 3496 9492 3519 9491 3537 9473
      3545 9444
TIME...MOT...LOC 0636Z 295DEG 27KT 3545 9446 3542 9470 3521 9484 3509
9493

Special weather statement, Aug 17, 2:02 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tulsa OK
202 AM CDT THU AUG 17 2017

OKZ049-053-170730-
Choctaw OK-Pushmataha OK-
202 AM CDT THU AUG 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN PUSHMATAHA AND
WESTERN CHOCTAW COUNTIES UNTIL 230 AM CDT...

At 201 AM CDT, strong thunderstorms were located along a line
extending from 3 miles northwest of Moyers to 5 miles north of
Bokchito. 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...
Antlers...                        Boswell...
Rattan...                         Soper...
Kent...                           Messer...
Moyers...                         Kosoma...
Kellond...                        Oleta...
Hugo Lake State Park...           Corinne...
Apple...                          Speer...
Dela...                           Unger...
Finley...

LAT...LON 3397 9594 3412 9594 3414 9596 3415 9598
      3416 9578 3436 9578 3444 9566 3419 9524
      3388 9580
TIME...MOT...LOC 0701Z 300DEG 26KT 3437 9568 3409 9611

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 7:14 PM CDT	Special Weather Statement	TSA	Osage	61 min
Aug 16, 7:17 PM CDT	Severe Thunderstorm Warning	TSA	Osage	58 min
Aug 16, 7:49 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	56 min
Aug 16, 7:52 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Osage, Washington	53 min
Aug 16, 8:28 PM CDT	Special Weather Statement	TSA	Washington	62 min
Aug 16, 8:39 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	66 min
Aug 16, 8:45 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Nowata, Ottawa, Rogers, Washington	60 min
Aug 16, 9:34 PM CDT	Special Weather Statement	TSA	Delaware, Mayes, Wagoner	56 min
Aug 16, 9:43 PM CDT	Special Weather Statement	TSA	Craig, Nowata, Ottawa, Rogers, Tulsa	47 min
Aug 16, 9:54 PM CDT	Special Weather Statement	TSA	Creek	51 min
Aug 16, 10:21 PM CDT	Special Weather Statement	TSA	Cherokee, Creek, Delaware, Mayes, Okmulgee, Tulsa and 1 more	54 min
Aug 16, 10:22 PM CDT	Special Weather Statement	TSA	Creek, Okfuskee, Okmulgee	68 min
Aug 16, 11:12 PM CDT	Special Weather Statement	TSA	Adair, Cherokee, Muskogee, Okfuskee, Okmulgee, Wagoner	63 min
Aug 17, 12:22 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, Pittsburg, Sequoyah	38 min
Aug 17, 1:01 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, Pittsburg, Sequoyah	29 min
Aug 17, 1:18 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg, Pushmataha	42 min
Aug 17, 1:37 AM CDT	Special Weather Statement	TSA	Sequoyah	23 min
Aug 17, 2:02 AM CDT	River Flood Warning	TSA	Ottawa	54 hr
Aug 17, 2:16 AM CDT	Areal Flood Advisory	TSA	Adair, Cherokee, Sequoyah	5 hr
Aug 17, 3:05 AM CDT	Special Weather Statement	TSA	Choctaw	40 min
Aug 17, 10:15 AM CDT	River Flood Advisory	TSA	Sequoyah	15 hr
Aug 17, 9:58 AM CDT	River Flood Advisory	TSA	Crawford, Franklin	24 hr

Nearby

Special Weather Statements in Oklahoma, 2017 Every special weather statement 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.