Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 24, NWS Little Rock, AR

February 28, 2017Faulkner County, Lonoke County, White County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Feb 28, 2017, 6:25 PM CST for Faulkner County, Lonoke County, White County, Arkansas. It was in force for 50 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: Feb 28, 2017, 6:25 PM CST (00:25 UTC)
Expired: Feb 28, 2017, 7:15 PM CST
In force: 50 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Tornado: Possible
Hail: 2.5 in
Wind: 70.0 mph

Counties Faulkner County, AR, Lonoke County, AR, White County, AR

The radar

The Little Rock radar (KLZK), 35 km from the middle of the area, began a volume at 00:25 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
Feb 28, 3:40 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.4 hours before the alert went out and 262 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: 1117 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 315 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 8.2

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 Feb 28, 5:50 PM CST, 35 minutes earlier.

Area forecast discussion, Feb 28, 5:50 PM CST, 35 minutes before

Area Forecast Discussion...Update
National Weather Service Little Rock AR
550 PM CST Tue Feb 28 2017

.Aviation...

VFR flight conditions will start the forecast, with MVFR conditions
with strong to severe storms. Storms will affect most of central AR
this evening, and move northeast. Tuesday evening convection will be
more isolated and strong to severe, while tonight a cold front will
gradually push across the state and additional convection will be
seen along the cold front with also isolated strong to severe
storms. Used VCSH and VCTS in all Tafs. Winds will be south at 10 to
20 mph with some gusts to 30 mph. Behind the front, winds will shift
to the northwest. (59)

&&

.Prev Discussion.../ Issued 259 PM CST Tue Feb 28 2017/

.SHORT TERM...Tonight Through Thursday

Focus this afternoon is on the chances of showers and thunderstorms
for tonight. The latest sounding...18Z...indicates a strong cap at
about 3000 feet. The atmosphere will need a little more heating to
break this cap and allow thunderstorms develop. A strong jet streak
should come across the state around 03Z tonight and provide
additional lift. The enhanced risk of severe thunderstorms continues
for mainly the northern half of the area with a slight risk
elsewhere. The cold front in the plains will not move through the
state until after midnight. This will bring another chance of strong
thunderstorms. Large hail, storng winds and tornadoes are all
possible through the night. Expect the thunderstorms and cold front
to exit the eastern part of the state during Wednesday morning.
Gusty south winds will be ahead of the front and will turn to the
northwest behind the front and remain gusty. Will issue a Lake Wind
Advisory due to the strong winds.

All rain should be out of eastern Arkansas by noon Wednesday. Expect
winds to diminish through the afternoon as the gradient relaxes.
High temperatures Wednesday will be in the mid 50s to mid 70s...and
upper 50s to mid 60s for Thursday. &&

.LONG TERM...Thursday Night Through Tuesday

The period will begin with dry weather, and close to seasonal
temperatures. It may be cool enough for a freeze in parts of
northern Arkansas Friday morning. After that, a warming trend is
expected. This will happen as a large area of high pressure exits
toward the southeast United States, and winds around the high become
more southerly. As temperatures go up, a storm system will approach
from the Plains late in the weekend and early next week. That will
result in isolated to scattered showers and thunderstorms Sunday and
Monday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Batesville AR     58  62  34  61 /  70  60   0   0
Camden AR         62  70  37  64 /  60  40   0   0
Harrison AR       48  57  32  59 /  60  30   0   0
Hot Springs AR    58  66  35  63 /  60  30   0   0
Little Rock   AR  61  67  36  63 /  60  50   0   0
Monticello AR     65  74  38  64 /  70  60   0   0
Mount Ida AR      56  63  33  63 /  60  30   0   0
Mountain Home AR  52  59  32  60 /  70  40   0   0
Newport AR        59  64  35  61 /  80  60   0   0
Pine Bluff AR     63  70  37  63 /  70  50   0   0
Russellville AR   56  62  33  62 /  60  30   0   0
Searcy AR         60  66  35  62 /  70  50   0   0
Stuttgart AR      62  68  37  62 /  70  50   0   0
&&

.LZK Watches/Warnings/Advisories...
Lake Wind Advisory from 6 PM this evening to noon CST Wednesday
FOR Arkansas-Baxter-Boone-Bradley-Calhoun-Clark-Cleburne-
Cleveland-Conway-Dallas-Desha-Drew-Faulkner-Fulton-Garland-Grant-
Hot Spring-Independence-Izard-Jackson-Jefferson-Johnson-Lincoln-
Logan-Lonoke-Marion-Monroe-Montgomery-Newton-Ouachita-Perry-Pike-
Polk-Pope-Prairie-Pulaski-Saline-Scott-Searcy-Sharp-Stone-Van
Buren-White-Woodruff-Yell.

&&

Short Term...51 / Long Term...46

Hazardous weather outlook, Feb 28, 4:50 PM CST, 1 hour 35 minutes before

Hazardous Weather Outlook...Update
National Weather Service Little Rock AR
450 PM CST Tue Feb 28 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-011115-
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-
450 PM CST Tue Feb 28 2017

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

.DAY ONE...This Evening and Tonight

Isolated to scattered thunderstorms will develop this evening and
become more numerous tonight. Isolated to scattered strong to severe
storms will be seen, with large hail, damaging winds and a few
isolated tornadoes possible. Isolated storms this evening will
transition to a line of storms later tonight as a cold front moves
into the state from the northwest. Damaging winds will be possible
along this line of storms, with hail and tornadoes a lesser threat
at that time. Isolated areas of heavy rain will also be possible
with localized flooding.

.DAYS TWO THROUGH SEVEN...Wednesday Through Monday

The storm system and cold front will be pushing east of Arkansas on
Wednesday, and push the storms east of Arkansas. An isolated strong
to severe storm will be possible until the cold front pushes east of
Arkansas. Then high pressure will build into the area and bring
cooler and dry weather into the weekend.

.Spotter Information Statement...

Spotter Activation will be needed this evening and tonight.

&&

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

59

In the hours before

Local storm report, Feb 28, 5:39 PM CST, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
539 PM CST TUE FEB 28 2017

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

0500 PM     TSTM WND DMG     HOT SPRINGS VILLAGE     34.67N  93.00W
02/28/2017                   GARLAND            AR   LAW ENFORCEMENT

            TREES DOWN ON A HOUSE.

&&

EVENT NUMBER LZK1700053

JBH

Local storm report, Feb 28, 5:41 PM CST, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
541 PM CST TUE FEB 28 2017

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

0540 PM     HAIL             WILLIAMS JUNCTION       34.88N  92.77W
02/28/2017  E1.00 INCH       PERRY              AR   AMATEUR RADIO

&&

EVENT NUMBER LZK1700054

JBH

Local storm report, Feb 28, 5:48 PM CST, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
548 PM CST TUE FEB 28 2017

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

0546 PM     HAIL             LITTLE ITALY            34.94N  92.59W
02/28/2017  E1.00 INCH       PERRY              AR   AMATEUR RADIO

&&

EVENT NUMBER LZK1700055

JBH

Local storm report, Feb 28, 5:49 PM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
549 PM CST TUE FEB 28 2017

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

0549 PM     HAIL             MONNIE SPRINGS          34.92N  92.49W
02/28/2017  E1.50 INCH       PULASKI            AR   AMATEUR RADIO

&&

EVENT NUMBER LZK1700056

JBH

Local storm report, Feb 28, 5:59 PM CST, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
559 PM CST TUE FEB 28 2017

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

0555 PM     HAIL             MONNIE SPRINGS          34.92N  92.49W
02/28/2017  E4.50 INCH       PULASKI            AR   AMATEUR RADIO

&&

EVENT NUMBER LZK1700057

JBH

Local storm report, Feb 28, 6:23 PM CST, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
623 PM CST TUE FEB 28 2017

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

0615 PM     HAIL             VILONIA                 35.08N  92.21W
02/28/2017  E1.00 INCH       FAULKNER           AR   PUBLIC

&&

EVENT NUMBER LZK1700058

JBH

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 6:05 PM CST	Severe Thunderstorm Warning	LZK	Faulkner, Perry, Pulaski	40 min
Feb 28, 6:33 PM CST	Tornado Warning	LZK	White	42 min
Feb 28, 7:09 PM CST	Severe Thunderstorm Warning	LZK	Jackson, White, Woodruff	51 min
Feb 28, 7:14 PM CST	Tornado Warning	LZK	Jackson, White, Woodruff	35 min
Feb 28, 7:35 PM CST	Special Weather Statement	LZK	Baxter	40 min
Feb 28, 7:52 PM CST	Severe Thunderstorm Warning	LZK	Jackson, Woodruff	23 min
Feb 28, 8:40 PM CST	Special Weather Statement	LZK	Izard, Stone	35 min
Feb 28, 9:40 PM CST	Special Weather Statement	LZK	Sharp	20 min
Mar 1, 1:07 AM CST	Severe Thunderstorm Warning	LZK	Johnson, Logan, Newton, Pope, Searcy, Yell	38 min
Mar 1, 1:39 AM CST	Severe Thunderstorm Warning	LZK	Baxter, Conway, Johnson, Logan, Marion, Newton and 4 more	51 min
Mar 1, 1:47 AM CST	Special Weather Statement	LZK	Logan, Scott, Yell	43 min
Mar 1, 2:27 AM CST	Severe Thunderstorm Warning	LZK	Baxter, Cleburne, Conway, Faulkner, Independence, Izard and 6 more	48 min
Mar 1, 2:35 AM CST	Special Weather Statement	LZK	Conway, Perry, Yell	40 min
Mar 1, 2:36 AM CST	Special Weather Statement	LZK	Montgomery, Polk	39 min
Mar 1, 2:43 AM CST	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard, Sharp	47 min
Mar 1, 3:05 AM CST	Severe Thunderstorm Warning	LZK	Independence, Jackson, Sharp, White, Woodruff	40 min
Mar 1, 3:16 AM CST	Special Weather Statement	LZK	Prairie, White, Woodruff	44 min
Mar 1, 4:35 AM CST	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, Pulaski, Saline, White	40 min
Mar 1, 5:12 AM CST	Severe Thunderstorm Warning	LZK	Jackson, Lonoke, Monroe, Prairie, White, Woodruff	48 min
Mar 1, 5:43 AM CST	Special Weather Statement	LZK	Pulaski, Saline	32 min
Mar 1, 6:42 AM CST	Special Weather Statement	LZK	Lonoke, Prairie, Pulaski, Saline	48 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2017 Every severe thunderstorm warning in 2017

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.