Alert archive / Arkansas / Areal Flood Warnings in 2020

Areal Flood Warning 2, NWS Tulsa, OK

January 11, 20204 counties in Oklahoma; 5 counties in Arkansas

NWS Tulsa, OK issued this areal flood warning at Jan 11, 2020, 12:06 AM CST for 4 counties in Oklahoma; 5 counties in Arkansas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 11, 2020, 12:06 AM CST (06:06 UTC)
Expired: Jan 11, 2020, 6:00 AM CST
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

Counties Benton County, AR, Carroll County, AR, Crawford County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Delaware County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 78 km from the middle of the area, began a volume at 06:09 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

Springfield, MO (KSGF), launched 00:00Z, 6.1 hours before the alert went out and 112 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: 322 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 517 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 325 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jan 10, 11:32 PM CST, 34 minutes earlier.

Area forecast discussion, Jan 10, 11:32 PM CST, 34 minutes before

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Hazardous weather outlook, Jan 10, 9:32 PM CST, 2 hours 34 minutes before

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In the hours before

Local storm report, Jan 10, 6:06 PM CST, 6 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
606 PM CST FRI JAN 10 2020

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

0422 PM     HAIL             2 SE DECATUR            36.32N 94.44W
01/10/2020  E1.75 INCH       BENTON             AR   BROADCAST MEDIA

            SIZE ESTIMATED FROM PHOTO ON SOCIAL MEDIA.

&&

SRC

Special weather statement, Jan 10, 6:46 PM CST, 5 hours 20 minutes before

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

ARZ029-OKZ076-110130-
Sebastian AR-Le Flore OK-
646 PM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SEBASTIAN AND
EASTERN LE FLORE COUNTIES UNTIL 730 PM CST...

At 646 PM CST, strong thunderstorms were located along a line
extending from 4 miles west of Lake Wister State Park to 9 miles east
of Talimena State Park to 3 miles southeast of Whitesboro. Movement
was northeast at 50 mph.

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

Locations in or near the path include...
Fort Smith...                     Poteau...
Greenwood...                      Pocola...
Heavener...                       Arkoma...
Wister...                         Hackett...
Howe...                           Hartford...
Bonanza...                        Fanshawe...
Midland...                        Cameron...
Heavener Runestone State Park...  Excelsior...
Lake Wister State Park...         Muse...
Jenny Lind...                     Shady Point...

This includes Interstate 540 between mile markers 11 and 14.

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.

&&

A Tornado Watch remains in effect until 900 PM CST for west central
Arkansas...and southeastern and east central Oklahoma.

LAT...LON 3459 9489 3475 9484 3494 9492 3537 9441
      3522 9428 3495 9429 3496 9437 3493 9445
      3475 9446
TIME...MOT...LOC 0046Z 223DEG 47KT 3492 9484 3481 9479 3467 9484

Special weather statement, Jan 10, 7:39 PM CST, 4 hours 27 minutes before

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

ARZ002-011-020-110215-
Carroll AR-Madison AR-Franklin AR-
739 PM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR MADISON...NORTHEASTERN FRANKLIN
AND SOUTH CENTRAL CARROLL COUNTIES UNTIL 815 PM CST...

At 739 PM CST, strong thunderstorms were located along a line
extending from 9 miles east of Brentwood to 6 miles west of Ozark.
Movement was northeast at 60 mph.

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

Locations in or near the path include...
Ozark...                          Huntsville...
St. Paul...                       Cass...
Saint Paul...                     Kingston...
Aurora...                         Boston...
Pettigrew...                      Japton...
Witter...                         Marble...
Jethro...                         Dryfork...
Red Star...                       Metalton...
Crosses...                        Combs...
Turners Bend...                   Lonelm...

This includes Interstate 40 in Arkansas between mile markers 28 and
36.

A Tornado Watch remains in effect until 900 PM CST for west central
Arkansas.

LAT...LON 3595 9349 3593 9349 3592 9351 3588 9351
      3588 9352 3576 9352 3577 9370 3554 9370
      3548 9396 3573 9397 3575 9389 3576 9390
      3576 9396 3588 9395 3629 9350 3595 9347
TIME...MOT...LOC 0139Z 218DEG 75KT 3583 9395 3548 9394

Special weather statement, Jan 10, 8:20 PM CST, 3 hours 46 minutes before

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

ARZ002-011-110300-
Carroll AR-Madison AR-
820 PM CST Fri Jan 10 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MADISON AND CARROLL
COUNTIES UNTIL 900 PM CST...

At 820 PM CST, strong thunderstorms were located along a line
extending from near Berryville to 4 miles east of Boston. Movement
was northeast at 60 mph.

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

Locations in or near the path include...
Berryville...                     Green Forest...
Carrollton...                     Rudd...
Kingston...                       Osage...
Urbanette...                      Rule...
Blue Eye...                       Dryfork...
Red Star...                       Cabanal...
Metalton...                       Weathers...
Connor...                         Coin...
Delmar...                         Denver...

LAT...LON 3612 9348 3608 9348 3608 9345 3597 9345
      3595 9349 3593 9349 3592 9351 3588 9351
      3588 9352 3577 9352 3576 9355 3642 9360
      3650 9352 3650 9330 3612 9330
TIME...MOT...LOC 0220Z 219DEG 53KT 3638 9356 3583 9353

Local storm report, Jan 10, 8:25 PM CST, 3 hours 41 minutes before

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Local storm report, Jan 10, 9:52 PM CST, 2 hours 14 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
Jan 10, 6:04 PM CST	Areal Flood Advisory	TSA	Choctaw, Haskell, Latimer, LeFlore, Pushmataha, Sequoyah	4 hr
Jan 10, 6:16 PM CST	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Sequoyah	6 hr
Jan 10, 6:37 PM CST	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha, Sequoyah	6 hr
Jan 10, 6:46 PM CST	Special Weather Statement	TSA	LeFlore	44 min
Jan 10, 7:01 PM CST	Severe Thunderstorm Warning	TSA	LeFlore	44 min
Jan 10, 7:05 PM CST	Areal Flood Advisory	TSA	Cherokee, Craig, Creek, Delaware, Mayes, Muskogee and 5 more	6 hr
Jan 10, 7:08 PM CST	Tornado Warning	TSA	Choctaw	10 min
Jan 10, 8:22 PM CST	Winter Storm Warning	TSA	Pawnee, Washington	16 hr
Jan 10, 10:33 PM CST	Areal Flood Warning	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	9 hr
Jan 11, 12:25 AM CST	Areal Flood Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha, Sequoyah	6 hr
Jan 11, 8:24 AM CST	River Flood Warning	TSA	Sequoyah	6 hr
Jan 11, 8:44 AM CST	River Flood Warning	TSA	Creek	11 hr
Jan 11, 9:11 AM CST	River Flood Warning	TSA	LeFlore	11 hr
Jan 10, 7:36 PM CST	Severe Thunderstorm Warning	TSA	Franklin	24 min
Jan 10, 7:39 PM CST	Special Weather Statement	TSA	Franklin, Madison	36 min
Jan 10, 7:46 PM CST	Tornado Warning	TSA	Franklin	13 min
Jan 10, 8:20 PM CST	Special Weather Statement	TSA	Carroll	40 min
Jan 11, 9:13 AM CST	River Flood Warning	TSA	Crawford, Sebastian	11 hr
Jan 11, 9:16 AM CST	River Flood Advisory	TSA	Franklin, Johnson, Logan	2 hr
Jan 11, 10:28 AM CST	River Flood Warning	TSA	Franklin, Johnson, Logan	33 hr

Nearby

Areal Flood Warnings in Arkansas, 2020 Areal Flood Warnings in Oklahoma, 2020 Every areal flood warning 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.