Alert archive / Oklahoma / Special Weather Statements in 2020

Special Weather Statement, NWS Tulsa, OK

January 10, 2020Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jan 10, 2020, 12:09 PM CST for Nowata County, Washington County, Oklahoma. It was in force for 51 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: Jan 10, 2020, 12:09 PM CST (18:09 UTC)
Expired: Jan 10, 2020, 1:00 PM CST
In force: 51 min
Issued by: NWS Tulsa, OK

Counties Nowata County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 65 km from the middle of the area, began a volume at 18:13 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, 6.2 hours before the alert went out and 178 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: 619 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

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 Jan 10, 11:49 AM CST, 20 minutes earlier.

Area forecast discussion, Jan 10, 11:49 AM CST, 20 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1149 AM CST Fri Jan 10 2020

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
MVFR to IFR conditions will prevail through the forecast period.
Showers and thunderstorms this afternoon and evening will
trnasition to a wintry mix and eventually snow Saturday morning as
colder air moves into the area behind a cold front. Gusty north
winds will also prevail behind the cold front.

&&

.PREV DISCUSSION... /Issued 1059 AM CST Fri Jan 10 2020/

DISCUSSION...
Showers and thunderstorms are increasing in coverage and intensity
across eastern Oklahoma late this morning. This trend will
continue into the afternoon, with severe storms and possible
tornadoes expected. Have made a few minor changes to afternoon
high temperatures, with the rest of the forecast looking good at
this time.

Update on the way.

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...Flash Flood Watch through late tonight for OKZ049-053-057-058-
     060>063-065>076.

     Winter Storm Watch from late tonight through Saturday morning
     for OKZ054-055-059.

AR...Flash Flood Watch through late tonight for ARZ001-002-010-011-
     019-020-029.

&&

AVIATION.....05

Hazardous weather outlook, Jan 10, 5:12 AM CST, 6 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
512 AM CST Fri Jan 10 2020

ARZ001-002-010-011-019-020-029-OKZ049-053>076-111115-
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-
512 AM CST Fri Jan 10 2020

...Severe Storms and Winter Weather Expected Through Tonight...

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

.DAY ONE...Today and Tonight.

TORNADO.
	RISK...Elevated.
	AREA...Eastern Oklahoma and western Arkansas.
	ONSET...This Afternoon.

SEVERE THUNDERSTORM.
	RISK...Significant.
	AREA...Eastern Oklahoma and western Arkansas.
	ONSET...This Afternoon.

	AREA AT GREATEST RISK...Southeast Oklahoma.

FLASH FLOOD.
	RISK...Elevated.
    Area...Much of eastern Oklahoma and western Arkansas.
    Onset...This Afternoon.

HEAVY RAIN.
	RISK...Significant.
    Area...Much of eastern Oklahoma and western Arkansas.
    Onset...This Afternoon.

WINTER WEATHER.
	SNOW ACCUMULATION.
	RISK...Limited.
	AREA...Northeast Oklahoma .
	ONSET...Late Evening.

	Additional Accumulations in Later Periods.

	ICE ACCUMULATION.
	RISK...Limited.
	AREA...Northeast Oklahoma.
	ONSET...Late Evening.

SIGNIFICANT WINDS.
	RISK...Limited.
	AREA...Northeast Oklahoma.
	ONSET...This Evening.

DISCUSSION...
An active weather day is on tap for eastern Oklahoma and
western Arkansas as a strong cold front is poised to move
through region this afternoon and evening. Thunderstorms
are expected to become widespread across the region by
this afternoon with a line of thunderstorms eventually
forming near the cold front and moving through the region
late this afternoon and evening. Severe weather is expected
with the thunderstorms with the potential for 70 mph wind
gusts, a few tornadoes, and large hail to the size of quarters.
The severe weather threat is expected to end around midnight.
Heavy rainfall is also anticipated across the region Today and
into this evening with most of eastern Oklahoma and western
Arkansas seeing 1 to 3 inches of rain. Some locations could
see upwards of 6 inches of rain through this evening which
could lead to flash flooding. The river flood threat will
also be on the increase Today.

As cold air spills into the region behind the cold front,
a transition to wintry precipitation will take place with
freezing rain, sleet and snow all possible late tonight
across northeast Oklahoma. This could lead to slick spots
on area roadways.

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

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
SATURDAY...Winter Weather Potential...High Wind Potential.
SUNDAY through TUESDAY...No Hazards.
WEDNESDAY...Thunderstorm Potential.
THURSDAY...No Hazards.

EXTENDED DISCUSSION...
The wintry precipitation will continue into Saturday across
much of eastern Oklahoma and western Arkansas as cold air
continues to invade the region and an upper level disturbance
moves across the region. Snowfall forecasts currently call
for 1 to 4 inches of snow north and west of Interstate 44
across northeast Oklahoma with 1 to 2 inches of snow across
northwest Arkansas and the remainder of northeast Oklahoma.
Lighter snow amounts will be possible across southeast Oklahoma
into west-central Arkansas. There will also be a light accumulation
of ice across the area as well. This will likely lead to hazardous
driving conditions across the region. The wintry precipitation
is expected to end late Saturday afternoon.

Temperatures on Sunday will be warm enough that any wintry travel
impacts will be relatively short lived.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
Continue to monitor the latest forecasts of severe weather, heavy
rain, flash flooding and winter weather. Consider readying plans to
respond to impacts from severe thunderstorms, flooding, and wintry
weather.

weather.gov/tulsa contains additional information.

In the hours before

Local storm report, Jan 10, 11:35 AM CST, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1135 AM CST FRI JAN 10 2020

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

1133 AM     HAIL             TULSA                   36.13N 95.92W
01/10/2020  E1.00 INCH       TULSA              OK   EMERGENCY MNGR

            REPORTED AROUND THE 6500 BLOCK OF SOUTH LEWIS

&&

JDS

Special weather statement, Jan 10, 11:39 AM CST, 30 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1139 AM CST Fri Jan 10 2020

OKZ057-058-101815-
Craig OK-Ottawa OK-
1139 AM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CRAIG AND
NORTHWESTERN OTTAWA COUNTIES UNTIL 1215 PM CST...

At 1139 AM CST, a strong thunderstorm was located 4 miles west of
Commerce, moving northeast at 55 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations in or near the path include...
Miami...                          Commerce...
Quapaw...                         Welch...
Treece...                         Picher...
Narcissa...                       Cardin...

This includes Interstate 44 between mile markers 307 and 311.

A Tornado Watch remains in effect until 600 PM CST for northeastern
Oklahoma.

LAT...LON 3679 9490 3688 9510 3700 9504 3700 9474
TIME...MOT...LOC 1739Z 207DEG 48KT 3691 9496

Local storm report, Jan 10, 11:46 AM CST, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1146 AM CST FRI JAN 10 2020

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

1138 AM     HAIL             2 N TULSA               36.16N 95.92W
01/10/2020  E0.75 INCH       TULSA              OK   PUBLIC

&&

JDS

Special weather statement, Jan 10, 11:46 AM CST, 23 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1146 AM CST Fri Jan 10 2020

OKZ066-070-071-101830-
Muskogee OK-Okmulgee OK-McIntosh OK-
1146 AM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MCINTOSH...
NORTHWESTERN MUSKOGEE AND EASTERN OKMULGEE COUNTIES UNTIL 1230 PM
CST...

At 1146 AM CST, a strong thunderstorm was located near Dewar, moving
north at 60 mph.

Penny size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations in or near the path include...
Okmulgee...                       Henryetta...
Haskell...                        Morris...
Dewar...                          Schulter...
Boynton...                        Grayson...
Hoffman...                        Bald Hill...
Hitchita...                       Jamesville...
Hectorville...                    Eram...

This includes Interstate 40 in Oklahoma between mile markers 235 and
250.

A Tornado Watch remains in effect until 600 PM CST for southeastern,
northeastern and east central Oklahoma.

LAT...LON 3585 9595 3581 9564 3579 9564 3578 9563
      3578 9561 3576 9559 3578 9556 3535 9582
      3539 9604
TIME...MOT...LOC 1746Z 199DEG 55KT 3544 9591

Local storm report, Jan 10, 11:49 AM CST, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1149 AM CST FRI JAN 10 2020

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

1132 AM     HAIL             TULSA                   36.13N 95.92W
01/10/2020  E1.00 INCH       TULSA              OK   BROADCAST MEDIA

            OBSERVED AT ORU

&&

JDS

Special weather statement, Jan 10, 12:09 PM CST, 0 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1209 PM CST Fri Jan 10 2020

OKZ055-056-061-101900-
Rogers OK-Nowata OK-Washington OK-
1209 PM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ROGERS...WASHINGTON
AND NOWATA COUNTIES UNTIL 100 PM CST...

At 1209 PM CST, a strong thunderstorm was located 3 miles northeast
of Ramona, moving north at 55 mph.

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

Locations in or near the path include...
Bartlesville...                   Nowata...
Dewey...                          South Coffeyville...
Copan...                          Ramona...
Ochelata...                       Delaware...
Lenapah...                        Talala...
Wann...                           Watova...

A Tornado Watch remains in effect until 600 PM CST for northeastern
Oklahoma.

LAT...LON 3652 9565 3651 9600 3682 9600 3700 9596
      3700 9545
TIME...MOT...LOC 1809Z 199DEG 49KT 3657 9588

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 10:42 AM CST	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	25 min
Jan 10, 10:58 AM CST	Special Weather Statement	TSA	Osage, Pawnee	47 min
Jan 10, 11:15 AM CST	Special Weather Statement	TSA	Osage	30 min
Jan 10, 11:27 AM CST	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Wagoner	48 min
Jan 10, 11:32 AM CST	Special Weather Statement	TSA	Tulsa	28 min
Jan 10, 11:34 AM CST	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Wagoner	41 min
Jan 10, 11:35 AM CST	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Washington	25 min
Jan 10, 11:39 AM CST	Special Weather Statement	TSA	Ottawa	36 min
Jan 10, 11:46 AM CST	Special Weather Statement	TSA	Okmulgee	44 min
Jan 10, 11:54 AM CST	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa	51 min
Jan 10, 12:38 PM CST	Special Weather Statement	TSA	Muskogee, Wagoner	37 min
Jan 10, 12:43 PM CST	Special Weather Statement	TSA	McIntosh, Pittsburg	47 min
Jan 10, 12:54 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Wagoner	51 min
Jan 10, 1:03 PM CST	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	42 min
Jan 10, 1:04 PM CST	Tornado Warning	TSA	Cherokee, Muskogee, Wagoner	41 min
Jan 10, 1:11 PM CST	Tornado Warning	TSA	McIntosh, Pittsburg	36 min
Jan 10, 1:14 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	27 min
Jan 10, 1:22 PM CST	Tornado Warning	TSA	Craig, Nowata	16 min
Jan 10, 1:31 PM CST	Tornado Warning	TSA	Cherokee, Delaware, Mayes	44 min
Jan 10, 1:37 PM CST	Tornado Warning	TSA	McIntosh, Muskogee, Pittsburg	38 min
Jan 10, 1:59 PM CST	Special Weather Statement	TSA	Pittsburg	46 min
Jan 10, 2:06 PM CST	Tornado Warning	TSA	McIntosh, Muskogee	39 min
Jan 10, 2:09 PM CST	Tornado Warning	TSA	Delaware	9 min
Jan 10, 2:29 PM CST	Severe Thunderstorm Warning	TSA	Latimer, McIntosh, Pittsburg	46 min
Jan 10, 2:34 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	41 min
Jan 10, 2:36 PM CST	Tornado Warning	TSA	Adair, Cherokee, Muskogee	39 min
Jan 10, 2:51 PM CST	Tornado Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	39 min
Jan 10, 3:05 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	40 min
Jan 10, 3:12 PM CST	Tornado Warning	TSA	Adair, Cherokee, Delaware	28 min
Jan 10, 3:13 PM CST	Areal Flood Advisory	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	3 hr
Jan 10, 3:21 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	39 min
Jan 10, 3:40 PM CST	Tornado Warning	TSA	Haskell, LeFlore, Sequoyah	34 min
Jan 10, 3:49 PM CST	Severe Thunderstorm Warning	TSA	Adair	41 min
Jan 10, 3:50 PM CST	Areal Flood Advisory	TSA	Adair, Cherokee, Delaware, Sequoyah	3 hr
Jan 10, 3:55 PM CST	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, LeFlore, Sequoyah	50 min
Jan 10, 3:58 PM CST	Areal Flood Advisory	TSA	McIntosh, Pittsburg	3 hr
Jan 10, 4:02 PM CST	Winter Weather Advisory	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more	23 hr
Jan 10, 4:24 PM CST	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	51 min
Jan 10, 4:34 PM CST	Winter Storm Watch	TSA	Pawnee, Washington	4 hr
Jan 10, 4:53 PM CST	Flash Flood Warning	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	6 hr
Jan 10, 5:16 PM CST	Special Weather Statement	TSA	Pittsburg	44 min
Jan 10, 5:47 PM CST	Special Weather Statement	TSA	Haskell, Latimer	43 min
Jan 10, 3:25 PM CST	Severe Thunderstorm Warning	TSA	Benton	50 min
Jan 10, 3:39 PM CST	Severe Thunderstorm Warning	TSA	Benton	36 min
Jan 10, 4:12 PM CST	Severe Thunderstorm Warning	TSA	Benton	48 min
Jan 10, 5:01 PM CST	Tornado Warning	TSA	Carroll, Madison, Washington	44 min
Jan 10, 5:10 PM CST	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	48 min

Nearby

Special Weather Statements in Oklahoma, 2020 Every special weather statement in 2020

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.