Alert archive / Arkansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 3, NWS Little Rock, AR

January 22, 2018Faulkner County, White County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jan 22, 2018, 12:53 AM CST for Faulkner County, White County, Arkansas. It was in force for 37 min. 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 22, 2018, 12:53 AM CST (06:53 UTC)
Expired: Jan 22, 2018, 1:30 AM CST
In force: 37 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Faulkner County, AR, White County, AR

The radar

The Little Rock radar (KLZK), 45 km from the middle of the area, began a volume at 06:57 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 21, 9:59 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.9 hours before the alert went out and 246 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: 87 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 232 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 21, 11:30 PM CST, 1 hour 23 minutes earlier.

Area forecast discussion, Jan 21, 11:30 PM CST, 1 hour 23 minutes before

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Hazardous weather outlook, Jan 21, 10:15 PM CST, 2 hours 38 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Little Rock AR
1015 PM CST Sun Jan 21 2018

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-221100-
Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard-
Independence-Johnson-Pope-Van Buren-Cleburne-Jackson-Logan-Conway-
Faulkner-White-Woodruff-Scott-Yell-Perry-Polk-Montgomery-Garland-
Saline-Pulaski-Lonoke-Prairie-Monroe-Pike-Clark-Hot Spring-Grant-
Jefferson-Arkansas-Dallas-Cleveland-Lincoln-Desha-Ouachita-
Calhoun-Bradley-Drew-
1015 PM CST Sun Jan 21 2018

This Hazardous Weather Outlook is for a Large Part of Arkansas.

.DAY ONE..Tonight

Showers and thunderstorms continue to develop over western Arkansas
and will continue to advance eastward through the night as a cold
front surges east through the state.

This line of thunderstorms will be moving over central sections of
the state after midnight. Expect this line of thunderstorms to be
east of the state by just after sunrise Monday morning.

Some strong to severe thunderstorms will be possible with this line
of thunderstorms overnight. The best chances for seeing severe
weather will be across the western half of the state. The primary
threats with the strongest storms will be damaging winds, though a
few brief, weak tornadoes may be seen along the leading edge of the
line of thunderstorms. Some locally heavy rainfall may also be seen.

.DAYS TWO THROUGH SEVEN...Monday Through Saturday

Showers and thunderstorms will exit to east of Arkansas Monday
morning...with the threat for severe weather becoming low.
However...breezy west and northwest winds will be seen...with
winds of 15 to 25 mph expected...with gusts over 30 mph possible.
As a result...caution is advised on area lakes for these breezy
conditions through Monday afternoon.

A new storm system and front will bring good chances of rain by
Friday night and Saturday. There may be a brief wintry mix as
precipitation ends late Saturday night and Sunday.

.Spotter Information Statement...

Spotter activation may be needed this evening and overnight for
central and western Arkansas.

&& state...stretching from

Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.

62

In the hours before

Special weather statement, Jan 21, 9:20 PM CST, 3 hours 33 minutes before

Special Weather Statement
National Weather Service Little Rock AR
920 PM CST SUN JAN 21 2018

ARZ037-040-041-220400-
Polk AR-Scott AR-Montgomery AR-
920 PM CST SUN JAN 21 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL SCOTT...POLK AND
WEST CENTRAL MONTGOMERY COUNTIES UNTIL 1000 PM CST...

At 920 PM CST, Doppler radar was tracking a strong thunderstorm near
Grannis, or 13 miles northwest of De Queen, moving northeast at 50
mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Mena...                           Wickes...
Grannis...                        Hatfield...
Vandervoort...                    Opal...
Cossatot River State Park...      Polk County Fairgrounds...
Mena Intermountain Airport...     Mccauley...
Shady...                          Hartley...
Cove...                           Acorn...
Board Camp...                     Ink...
Hatton...                         Potter...
Dallas...                         Shady Grove...

A tornado watch remains in effect until 1100 PM CST for western
Arkansas.

LAT...LON 3439 9447 3483 9420 3465 9383 3435 9414
      3435 9425 3427 9426 3427 9424 3425 9425
      3419 9431 3419 9447
TIME...MOT...LOC 0320Z 215DEG 45KT 3423 9444

Cross

Special weather statement, Jan 21, 10:19 PM CST, 2 hours 34 minutes before

Special Weather Statement
National Weather Service Little Rock AR
1019 PM CST SUN JAN 21 2018

ARZ003-012-021-022-030-220500-
Pope AR-Johnson AR-Newton AR-Boone AR-Logan AR-
1019 PM CST SUN JAN 21 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL LOGAN...CENTRAL
JOHNSON...NEWTON...BOONE AND NORTHWESTERN POPE COUNTIES UNTIL 1100 PM
CST...

At 1019 PM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Red Bank to Holman. Movement was northeast
at 40 mph.

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

Locations impacted include...
Harrison...                       Clarksville...
Jasper...                         Lamar...
Bergman...                        Western Grove...
Scranton...                       Valley Springs...
Olvey...                          Carver...
Erbie...                          Moore...
Upper Buffalo Wilderness Area...  Devils Knob...
Lost Valley State Park...         Pruitt...
Holman...                         Rosetta...
Myrtle...                         Self...

A tornado watch remains in effect until 400 AM CST for western,
central and north central Arkansas.

LAT...LON 3650 9294 3563 9295 3532 9354 3586 9353
      3599 9345 3608 9345 3608 9348 3612 9348
      3612 9330 3630 9330 3650 9301
TIME...MOT...LOC 0419Z 233DEG 36KT 3617 9333 3550 9334

Cross

Local storm report, Jan 21, 11:17 PM CST, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1117 PM CST SUN JAN 21 2018

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

1110 PM     TSTM WND DMG     CADDO GAP               34.40N 93.62W
01/21/2018                   MONTGOMERY         AR   TRAINED SPOTTER

            ATTACHED CARPORT DESTROYED.

&&

CDALTON

Special weather statement, Jan 22, 12:32 AM CST, 21 minutes before

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Special weather statement, Jan 22, 12:35 AM CST, 18 minutes before

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Special weather statement, Jan 22, 12:37 AM CST, 16 minutes before

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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 21, 8:28 PM CST	Special Weather Statement	LZK	Newton	32 min
Jan 21, 9:20 PM CST	Special Weather Statement	LZK	Polk	40 min
Jan 21, 9:41 PM CST	Severe Thunderstorm Warning	LZK	Johnson, Newton	34 min
Jan 21, 10:19 PM CST	Special Weather Statement	LZK	Boone, Johnson, Newton	41 min
Jan 21, 10:34 PM CST	Tornado Warning	LZK	Pike	28 min
Jan 21, 11:02 PM CST	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	43 min
Jan 21, 11:20 PM CST	Tornado Warning	LZK	Garland, Montgomery, Saline	17 min
Jan 22, 12:32 AM CST	Special Weather Statement	LZK	Faulkner	58 min
Jan 22, 12:35 AM CST	Special Weather Statement	LZK	Conway	40 min
Jan 22, 12:37 AM CST	Special Weather Statement	LZK	Hot Spring	53 min
Jan 22, 2:12 AM CST	Special Weather Statement	LZK	Jackson, Lonoke, Prairie, Woodruff	63 min
Jan 22, 2:30 AM CST	Special Weather Statement	LZK	Arkansas, Cleveland, Jefferson, Lincoln, Monroe	60 min
Jan 22, 3:32 AM CST	Special Weather Statement	LZK	Desha	43 min
Jan 22, 3:36 AM CST	Severe Thunderstorm Warning	LZK	Desha, Drew	24 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2018 Every severe thunderstorm warning 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.