Alert archive / Oklahoma / Special Weather Statements in 2018

Special Weather Statement, NWS Tulsa, OK

June 12, 2018Osage County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jun 12, 2018, 4:07 AM CDT for Osage County, Oklahoma. It was in force for 38 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, 4:07 AM CDT (09:07 UTC)
Expired: Jun 12, 2018, 4:45 AM CDT
In force: 38 min
Issued by: NWS Tulsa, OK

County Osage County, OK

The radar

The Tulsa radar (KINX), 100 km from the middle of the area, began a volume at 09:09 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, 9.1 hours before the alert went out and 207 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: 2726 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1313 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.9

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, 4:07 AM CDT, 0 minutes earlier.

Area forecast discussion, Jun 12, 4:07 AM CDT, 0 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
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 /  50  50  60  20
FSM   91  73  90  73 /  70  30  60  30
MLC   90  72  89  71 /  40  20  40  10
BVO   92  69  87  68 /  40  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 /  60  30  60  20
MIO   89  69  86  70 /  70  70  50  30
F10   90  72  89  72 /  60  30  60  20
HHW   90  73  92  72 /  30  20  30  10

&&

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

&&

SHORT TERM...06
LONG TERM....05

PLATE

Hazardous weather outlook, Jun 11, 9:05 PM CDT, 7 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
905 PM CDT Mon Jun 11 2018

ARZ001-002-010-011-019-020-029-OKZ049-053>076-121030-
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-
905 PM CDT Mon Jun 11 2018

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

.DAY ONE...Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Northeast Oklahoma and northwest Arkansas.
    ONSET...After Midnight.

HEAVY RAIN.
	RISK...Limited.
	AREA...Northeast Oklahoma.
	ONSET...After Midnight.

DISCUSSION...

Strong to severe thunderstorms currently moving into far northeast
Kansas will continue propagating south overnight, and may affect
parts of northeast Oklahoma and northwest Arkansas after midnight.
Damaging winds will be the main severe weather threat. Locally heavy
rainfall will also be possible with the storms, which may result in
some localized flooding concerns.

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

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
TUESDAY and WEDNESDAY...Thunderstorm Potential.
THURSDAY through SUNDAY...No Hazards.

EXTENDED DISCUSSION...

Remnant thunderstorms could be ongoing Tuesday morning with a
thunderstorm complex moving through the area. The cold front will
stall in our vicinity Tuesday before it returns north as a warm
front. Thunderstorm chances will continue Tuesday into Wednesday due
to the proximity of the front, and potential outflow boundaries from
earlier storms.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Jun 12, 3:19 AM CDT, 48 minutes before

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

OKZ054-120900-
Osage OK-
319 AM CDT TUE JUN 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE COUNTY UNTIL
400 AM CDT...

At 317 AM CDT, strong thunderstorms were located along a line
extending from 7 miles north of Elk City to 4 miles northeast of
Hardy. Movement was south at 35 mph.

Nickel size hail and winds in excess of 40 mph will be possible with
these storms.

Locations in or near the path include...
Shidler...                        Elgin...
Grainola...                       Foraker...
Bigheart...                       Pearsonia...
Hulah...                          Sunset Lake...
Wah Sha She State Park...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3700 9600 3687 9600 3662 9659 3689 9675
      3700 9675
TIME...MOT...LOC 0817Z 338DEG 32KT 3739 9588 3702 9674

Special weather statement, Jun 12, 4:07 AM CDT, 0 minutes before

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

OKZ054-120945-
Osage OK-
407 AM CDT TUE JUN 12 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE COUNTY UNTIL
445 AM CDT...

At 407 AM CDT, strong thunderstorms were located along a line
extending from 4 miles northeast of Hulah to 3 miles southwest of
Grainola. Movement was south at 25 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...
Bartlesville...                   Pawhuska...
Shidler...                        Burbank...
Grainola...                       Foraker...
Bigheart...                       Pearsonia...
Bartlesville Municipal Airport... Hulah...
Sunset Lake...                    Osage Hills State Park...
Okesa...                          Webb City...
Wah Sha She State Park...

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.

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

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3699 9600 3669 9600 3660 9676 3699 9675
TIME...MOT...LOC 0907Z 003DEG 23KT 3699 9600 3690 9668

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, 4:21 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, 8:06 AM CDT	Special Weather Statement	TSA	Latimer, LeFlore	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.