Alert archive / Oklahoma / Special Weather Statements in 2018

Special Weather Statement, NWS Tulsa, OK

June 12, 2018Latimer County, LeFlore County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jun 12, 2018, 8:06 AM CDT for Latimer County, LeFlore County, Oklahoma. It was in force for 54 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: Jun 12, 2018, 8:06 AM CDT (13:06 UTC)
Expired: Jun 12, 2018, 9:00 AM CDT
In force: 54 min
Issued by: NWS Tulsa, OK

Counties Latimer County, OK, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 49 km from the middle of the area, began a volume at 13:08 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 12:00Z, 1.1 hours before the alert went out and 235 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: 64 J/kg
Mixed-layer CIN: -414 J/kg
Mixed-layer LCL: 1416 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: -17 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 Jun 12, 6:36 AM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jun 12, 6:36 AM CDT, 1 hour 30 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
636 AM CDT Tue Jun 12 2018

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
A line of strong to severe storms will continue to move southeast
across northwest Arkansas and northeast Oklahoma this morning.
Although the outflow boundary had surged out ahead of the main
convective line, wind gusts of 30 to 50 miles per hour are still
occurring along or just behind the outflow boundary. MVFR
conditions can be expected with the storms with heavy downpours
lowering visibility. Another round of strong to severe storms is
possible late tonight, but this will likely occur after midnight
into early Wednesday morning.

&&

.PREV DISCUSSION... /Issued 407 AM CDT Tue Jun 12 2018/

DISCUSSION...
MCS moving into northeast Oklahoma at this time is likely to
continue south for the next several hours while gradually
weakening. The severe threat should begin to diminish by around
sunrise as the storms move south into a more hostile environment.
Another MCS is likely to affect parts of the area late tonight
into Wednesday morning, with northern areas most likely to be
affected.

An upper ridge will re-establish itself over the area Thursday
through Saturday, with the heat returning at that time. The upper
ridge will shift to the east late this weekend into early next
week, allowing a deep southerly fetch of tropical moisture to flow
north into the area. This will result in increasing rain chances,
along with cooler maximum temperatures as we head into next week.

Stayed near or just below guidance temperatures the next couple
days.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   92  71  88  71 /  70  50  60  20
FSM   91  73  90  73 /  80  30  60  30
MLC   90  72  89  71 /  80  20  40  10
BVO   92  69  87  68 /  50  70  50  20
FYV   88  69  85  68 /  80  50  60  30
BYV   88  69  86  68 /  80  50  60  30
MKO   90  71  89  71 /  80  30  60  20
MIO   89  69  86  70 /  70  70  50  30
F10   90  72  89  72 /  80  30  60  20
HHW   90  73  92  72 /  30  20  30  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...None.
AR...None.
&&

SHORT TERM...07
AVIATION.....06

CORFIDI

Hazardous weather outlook, Jun 12, 5:36 AM CDT, 2 hours 30 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
536 AM CDT Tue Jun 12 2018

ARZ001-002-010-011-019-020-029-OKZ049-053>076-131045-
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-
536 AM CDT Tue Jun 12 2018

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

.DAY ONE...Today and Tonight.

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

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

DANGEROUS HEAT.
	RISK...Limited.
	AREA...Eastern Oklahoma.
	ONSET...This afternoon.

DISCUSSION...
A line of strong to severe thunderstorms was moving through far
northeast Oklahoma this morning. These storms will be capable of
producing mainly damaging wind gusts through the early morning
hours. The storms are expected to weaken by mid morning.

This afternoon, isolated storms are possible, mainly across
western Arkansas. Tonight another complex of storms will form in
the high Plains of eastern Colorado and the Texas panhandle. These
storms will have the potential to reach eastern Oklahoma and
western Arkansas after midnight tonight.

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

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

EXTENDED DISCUSSION...
Thunderstorms will likely be ongoing Wednesday morning with the
overnight complex arriving from the west. Some of these storms
could be severe, with the main threat of damaging winds. Storm
chances continue into Thursday morning with more late storms.
After that, an upper ridge will build across the area with hot and
humid weather continuing to the weekend.

weather.gov/tulsa contains additional information.

CORFIDI

In the hours before

Local storm report, Jun 12, 7:24 AM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
724 AM CDT TUE JUN 12 2018

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

0515 AM     TSTM WND DMG     3 SSW PRYOR             36.26N 95.33W
06/12/2018                   MAYES              OK   PUBLIC

            TREES DOWN IN ROAD AT THE PRYOR MCDONALDS ALONG WITH
            POWER OUTAGES. TREES ALSO DOWN AT CHILIS IN PRYOR
            INCLUDING ONE ON THE FRONT DOOR OF RESTAURANT.

&&

SJC

Special weather statement, Jun 12, 7:29 AM CDT, 37 minutes before

Special Weather Statement
National Weather Service Tulsa OK
729 AM CDT TUE JUN 12 2018

OKZ064>066-121315-
Okmulgee OK-Okfuskee OK-Creek OK-
729 AM CDT TUE JUN 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR CREEK...NORTHWESTERN OKMULGEE AND
NORTHERN OKFUSKEE COUNTIES UNTIL 815 AM CDT...

At 729 AM CDT, strong thunderstorms were located along a line
extending from 3 miles southeast of Avery to 4 miles northeast of
Beggs. Movement was south at 30 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
these storms.

Locations in or near the path include...
Okmulgee...                       Bristow...
Okfuskee...                       Kiefer...
Beggs...                          Boley...
Mounds...                         Kellyville...
Schulter...                       Depew...
Paden...                          Grayson...
Slick...                          Shamrock...
Preston...                        Okmulgee State Park...
Welty...                          Liberty...
Milfay...                         Mason...

This includes Interstate 44 between mile markers 178 and 203.

LAT...LON 3598 9662 3596 9603 3586 9603 3586 9599
      3550 9584 3549 9663
TIME...MOT...LOC 1229Z 339DEG 25KT 3584 9670 3579 9602

Special weather statement, Jun 12, 7:33 AM CDT, 33 minutes before

Special Weather Statement
National Weather Service Tulsa OK
733 AM CDT TUE JUN 12 2018

OKZ070-072-074>076-121330-
Haskell OK-Muskogee OK-Latimer OK-Sequoyah OK-Le Flore OK-
733 AM CDT TUE JUN 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR HASKELL...SOUTHERN SEQUOYAH...
NORTHEASTERN LATIMER...CENTRAL LE FLORE AND SOUTHEASTERN MUSKOGEE
COUNTIES UNTIL 830 AM CDT...

At 733 AM CDT, strong thunderstorms were located along a line
extending from 3 miles west of Whitefield to 2 miles north of
Moffett. Movement was southeast at 25 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations in or near the path include...
Sallisaw...                       Poteau...
Wilburton...                      Stigler...
Pocola...                         Muldrow...
Heavener...                       Roland...
Spiro...                          Arkoma...
Panama...                         Wister...
Howe...                           Porum...
Bonanza...                        Keota...
Red Oak...                        Mccurtain...
Bokoshe...                        Fanshawe...

This includes Interstate 40 in Oklahoma between mile markers 303 and
328.

LAT...LON 3482 9445 3483 9536 3516 9535 3533 9539
      3529 9535 3539 9534 3551 9446 3535 9443
TIME...MOT...LOC 1233Z 335DEG 21KT 3524 9530 3543 9446

Local storm report, Jun 12, 7:42 AM CDT, 24 minutes before

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Special weather statement, Jun 12, 7:51 AM CDT, 15 minutes before

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Special weather statement, Jun 12, 8:06 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 3:19 AM CDT	Special Weather Statement	TSA	Osage	41 min
Jun 12, 3:40 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata, Washington	50 min
Jun 12, 4:07 AM CDT	Special Weather Statement	TSA	Osage	38 min
Jun 12, 4:21 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers, Washington	39 min
Jun 12, 4:32 AM CDT	Severe Thunderstorm Warning	TSA	Osage	43 min
Jun 12, 4:48 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Craig, Delaware, Mayes, Rogers, Tulsa and 2 more	42 min
Jun 12, 5:05 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa, Washington	40 min
Jun 12, 5:26 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Rogers and 1 more	49 min
Jun 12, 5:41 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	49 min
Jun 12, 6:12 AM CDT	Special Weather Statement	TSA	Adair, Cherokee	48 min
Jun 12, 6:29 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Pawnee, Tulsa	61 min
Jun 12, 6:45 AM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	45 min
Jun 12, 7:10 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	65 min
Jun 12, 7:29 AM CDT	Special Weather Statement	TSA	Creek, Okmulgee	46 min
Jun 12, 7:33 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, LeFlore	57 min
Jun 12, 7:51 AM CDT	Special Weather Statement	TSA	Okfuskee	54 min
Jun 12, 8:36 AM CDT	Areal Flood Advisory	TSA	Osage, Washington	3 hr
Jun 12, 8:59 AM CDT	Special Weather Statement	TSA	Pushmataha	61 min
Jun 12, 9:24 AM CDT	Special Weather Statement	TSA	Pittsburg	51 min
Jun 12, 6:48 AM CDT	Special Weather Statement	TSA	Crawford, Franklin	57 min

Nearby

Special Weather Statements in Oklahoma, 2018 Every special weather statement in 2018

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.