Alert archive / Oklahoma / Special Weather Statements in 2019

Special Weather Statement, NWS Tulsa, OK

August 8, 2019Okfuskee County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 8, 2019, 9:46 PM CDT for Okfuskee County, Oklahoma. It was in force for 44 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 8, 2019, 9:46 PM CDT (02:46 UTC)
Expired
Aug 8, 2019, 10:30 PM CDT
In force
44 min
Issued by
NWS Tulsa, OK

County Okfuskee County, OK

The radar

The Tulsa radar (KINX), 98 km from the middle of the area, began a volume at 02:48 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

Springfield, MO (KSGF), launched 00:00Z, 2.8 hours before the alert went out and 268 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2019-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 139 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2019-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
139 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
694 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 8, 8:54 PM CDT, 52 minutes earlier.

Area forecast discussion, Aug 8, 8:54 PM CDT, 52 minutes before
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Hazardous weather outlook, Aug 8, 4:54 PM CDT, 4 hours 52 minutes before
Hazardous Weather Outlook
National Weather Service Tulsa OK
454 PM CDT Thu Aug 8 2019

ARZ001-002-010-011-019-020-029-OKZ049-053>076-091030-
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 Thu Aug 8 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...This evening through tonight.

FLASH FLOOD.
	RISK...Elevated.
	AREA...Northeast Oklahoma and Northwest Arkansas.
	ONSET...Tonight.

HEAVY RAIN.
	RISK...Significant.
	AREA...Northeast Oklahoma and Northwest Arkansas.
	ONSET...Tonight.

DANGEROUS HEAT.
	RISK...Significant.
	AREA...Mainly along and south of Interstate 40.
	ONSET...Ongoing.

DISCUSSION...
A weak surface boundary stretched west to east roughly along the
Interstate 40 corridor late this afternoon. Showers and
thunderstorms will remain possible near and mainly to the north
of this boundary this evening and into the overnight hours. A few
of the storms could become strong to marginally severe, although
organized severe weather is not expected.

Heavy rain producing thunderstorms training across the same areas
will also raise flash flood concerns across parts of northeast
Oklahoma and northwest Arkansas, mainly tonight.

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

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
FRIDAY...Thunderstorm Potential...Dangerous Heat
Potential...Heavy Rain Potential.
SATURDAY and SUNDAY...Thunderstorm Potential...Dangerous Heat
Potential.
MONDAY...Dangerous Heat Potential.
TUESDAY...Thunderstorm Potential...Dangerous Heat Potential.
WEDNESDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Showers and thunderstorms will remain possible into Saturday as
the frontal boundary lingers in the vicinity. Another frontal
boundary will move into the area next week, with thunderstorm
chances increasing Tuesday and Wednesday as a result.

To the south of the frontal boundaries, hot and humid conditions
will continue, with afternoon heat index values nearing or
exceeding 105 degrees each afternoon.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Aug 8, 5:59 PM CDT, 3 hours 47 minutes before
Special Weather Statement
National Weather Service Tulsa OK
559 PM CDT Thu Aug 8 2019

OKZ073-075-082345-
Pittsburg OK-Latimer OK-
559 PM CDT Thu Aug 8 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LATIMER AND EAST
CENTRAL PITTSBURG COUNTIES UNTIL 645 PM CDT...

At 559 PM CDT, a strong thunderstorm was located near Blocker, moving
east at 10 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Quinton...                        Blocker...
Robbers Cave State Park...        Featherston...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3495 9565 3512 9561 3513 9535 3506 9535
      3506 9531 3486 9535
TIME...MOT...LOC 2259Z 278DEG 7KT 3503 9555
Local storm report, Aug 8, 6:36 PM CDT, 3 hours 10 minutes before
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Special weather statement, Aug 8, 7:23 PM CDT, 2 hours 23 minutes before
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Special weather statement, Aug 8, 8:09 PM CDT, 1 hour 37 minutes before
Special Weather Statement
National Weather Service Tulsa OK
809 PM CDT Thu Aug 8 2019

OKZ072-074-090200-
Haskell OK-Sequoyah OK-
809 PM CDT Thu Aug 8 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HASKELL AND CENTRAL
SEQUOYAH COUNTIES UNTIL 900 PM CDT...

At 809 PM CDT, a strong thunderstorm was located 5 miles southwest of
Vian, moving east at 20 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Sallisaw...                       Vian...
Gore...                           Gans...
Marble City...                    Tamaha...
Brushy Lake State Park...         Brushy...
Mc Key...

This includes Interstate 40 in Oklahoma between mile markers 289 and
316.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3533 9464 3533 9471 3536 9475 3536 9477
      3534 9479 3536 9511 3539 9511 3541 9508
      3544 9508 3546 9505 3546 9508 3549 9510
      3550 9512 3556 9512 3560 9465
TIME...MOT...LOC 0109Z 269DEG 18KT 3546 9505
Special weather statement, Aug 8, 8:20 PM CDT, 1 hour 26 minutes before
Special Weather Statement
National Weather Service Tulsa OK
820 PM CDT Thu Aug 8 2019

OKZ073>075-090200-
Haskell OK-Pittsburg OK-Latimer OK-
820 PM CDT Thu Aug 8 2019

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN HASKELL...NORTHWESTERN
LATIMER AND CENTRAL PITTSBURG COUNTIES UNTIL 900 PM CDT...

At 820 PM CDT, a strong thunderstorm was located 5 miles north of
Mcalester, moving east at 20 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Mcalester...                      Krebs...
Quinton...                        Crowder...
Alderson...                       Arrowhead State Park...
Mcalester Regional Airport...     Blocker...
Gowen...                          Featherston...
Dow...                            Bache...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3489 9584 3511 9585 3521 9537 3485 9534
TIME...MOT...LOC 0120Z 269DEG 18KT 3501 9575
Special weather statement, Aug 8, 9:46 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tulsa OK
946 PM CDT Thu Aug 8 2019

OKZ065-066-090330-
Okmulgee OK-Okfuskee OK-
946 PM CDT Thu Aug 8 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN OKMULGEE AND EASTERN
OKFUSKEE COUNTIES UNTIL 1030 PM CDT...

At 945 PM CDT, a strong thunderstorm was located 5 miles north of
Clearview, moving east at 5 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Henryetta...                      Clearview...
Pharoah...

This includes Interstate 40 in Oklahoma between mile markers 221 and
236.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3536 9625 3553 9636 3562 9613 3541 9599
TIME...MOT...LOC 0245Z 250DEG 6KT 3547 9621

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 7:23 PM CDTSpecial Weather StatementTSAHaskell52 min
Aug 8, 8:09 PM CDTSpecial Weather StatementTSASequoyah51 min
Aug 8, 8:20 PM CDTSpecial Weather StatementTSAPittsburg40 min
Aug 8, 10:24 PM CDTAreal Flood AdvisoryTSACreek, Okfuskee3 hr
Aug 9, 3:33 AM CDTHeat AdvisoryTSAChoctaw, Pushmataha15 hr
Aug 9, 5:33 AM CDTFlash Flood WarningTSAAdair, Sequoyah6 hr
Aug 9, 7:15 AM CDTAreal Flood AdvisoryTSAAdair, Cherokee, Haskell, LeFlore, Sequoyah3 hr
Aug 9, 8:16 AM CDTAreal Flood AdvisoryTSACreek, Osage, Rogers, Tulsa, Wagoner3 hr
Aug 9, 8:24 AM CDTAreal Flood AdvisoryTSACreek, Osage, Pawnee, Tulsa3 hr
Aug 9, 8:56 AM CDTFlash Flood WarningTSACherokee3 hr
Aug 9, 10:55 AM CDTAreal Flood AdvisoryTSAMayes, Rogers3 hr
Aug 9, 11:27 AM CDTFlash Flood WarningTSAMayes, Rogers95 min
Aug 9, 11:40 AM CDTAreal Flood WarningTSAAdair6 hr
Aug 9, 12:24 PM CDTAreal Flood WarningTSACherokee3 hr
Aug 9, 3:09 PM CDTHeat AdvisoryTSACherokee, Choctaw, Craig, Creek, Delaware, Haskell and 15 more29 hr
Aug 9, 3:09 PM CDTHeat AdvisoryTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more53 hr
Aug 8, 9:05 PM CDTAreal Flood AdvisoryTSABenton, Carroll, Madison, Washington3 hr
Aug 8, 11:52 PM CDTAreal Flood AdvisoryTSABenton, Carroll, Crawford, Franklin, Madison, Washington3 hr
Aug 9, 2:04 AM CDTFlash Flood WarningTSACrawford, Franklin6 hr
Aug 9, 3:42 AM CDTFlash Flood WarningTSACrawford, Franklin, Sebastian8 hr
Aug 9, 3:49 AM CDTSpecial Weather StatementTSACrawford41 min
Aug 9, 5:29 AM CDTRiver Flood AdvisoryTSACrawford, Franklin5 hr
Aug 9, 7:58 AM CDTAreal Flood WarningTSACrawford, Franklin6 hr

Nearby

Special Weather Statements in Oklahoma, 2019Every special weather statement 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.