Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 53, NWS Little Rock, AR

March 10, 2017Grant County, Jefferson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 10, 2017, 1:12 AM CST for Grant County, Jefferson County, Arkansas. It was in force for 48 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: Mar 10, 2017, 1:12 AM CST (07:12 UTC)
Expired: Mar 10, 2017, 2:00 AM CST
In force: 48 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Grant County, AR, Jefferson County, AR

The radar

The Little Rock radar (KLZK), 62 km from the middle of the area, began a volume at 07:16 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

Little Rock, AR (KBYH), launched 00:00Z, 7.2 hours before the alert went out and 213 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: 445 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 583 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 312 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 6.1

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 Mar 9, 11:15 PM CST, 1 hour 57 minutes earlier.

Area forecast discussion, Mar 9, 11:15 PM CST, 1 hour 57 minutes before

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Hazardous weather outlook, Mar 9, 7:00 PM CST, 6 hours 12 minutes before

Hazardous Weather Outlook...Update
National Weather Service Little Rock AR
700 PM CST Thu Mar 9 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-101100-
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-
700 PM CST Thu Mar 9 2017

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

.DAY ONE...Tonight

Severe storms will affect parts of northern and central Arkansas
this evening and tonight. An upper storm system and cold front will
move through the region and Arkansas, and develop strong to severe
thunderstorms. An enhance to slight risk of severe storms will be
forecast for the northern half of Arkansas. The main threats will be
damaging winds, large hail and isolated tornadoes. Some of the
storms will go into the overnight and to early Friday morning. The
cold front will gradually move through the state and push the storms
out of Arkansas early Friday.

.DAYS TWO THROUGH SEVEN...Friday Through Wednesday

The aforementioned front will move through the region on Friday,
with precipitation shunted to the south. It will also start turning
cooler.

A storm system tracking along the front will bring rain back to the
area on Saturday. It will likely be cold enough in parts of the
north for a light wintry mix Saturday afternoon and evening. Light
accumulating snow will be possible, especially in the northeast.

By Sunday morning, a widespread freeze is in the forecast. This will
include much of the state. A hard freeze will be noted in the
Ozarks, with readings well into the 20s.

.Spotter Information Statement...

Spotter activation may be need in northern Arkansas late this
afternoon and tonight.

&&

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

46/51/59

In the hours before

Local storm report, Mar 9, 11:46 PM CST, 1 hour 26 minutes before

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Local storm report, Mar 9, 11:59 PM CST, 1 hour 13 minutes before

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Special weather statement, Mar 10, 12:02 AM CST, 1 hour 10 minutes before

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Special weather statement, Mar 10, 12:17 AM CST, 55 minutes before

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Special weather statement, Mar 10, 12:42 AM CST, 30 minutes before

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Special weather statement, Mar 10, 1:02 AM CST, 10 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
Mar 9, 7:18 PM CST	Severe Thunderstorm Warning	LZK	Baxter, Boone, Marion	57 min
Mar 9, 7:44 PM CST	Tornado Warning	LZK	Boone	31 min
Mar 9, 7:56 PM CST	Tornado Warning	LZK	Baxter, Marion	25 min
Mar 9, 8:12 PM CST	Tornado Warning	LZK	Boone, Marion	18 min
Mar 9, 8:24 PM CST	Special Weather Statement	LZK	Baxter, Fulton, Izard	51 min
Mar 9, 8:28 PM CST	Severe Thunderstorm Warning	LZK	Baxter, Boone, Marion, Searcy	47 min
Mar 9, 8:58 PM CST	Severe Thunderstorm Warning	LZK	Baxter, Marion, Searcy, Stone, Van Buren	47 min
Mar 9, 9:14 PM CST	Special Weather Statement	LZK	Independence, Izard, Sharp, Stone	46 min
Mar 9, 9:31 PM CST	Special Weather Statement	LZK	Newton	44 min
Mar 9, 9:35 PM CST	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Izard, Stone, White	40 min
Mar 9, 9:41 PM CST	Tornado Warning	LZK	Cleburne, Independence, Stone, White	34 min
Mar 9, 10:11 PM CST	Severe Thunderstorm Warning	LZK	Independence, Jackson, White, Woodruff	49 min
Mar 9, 10:50 PM CST	Severe Thunderstorm Warning	LZK	Woodruff	25 min
Mar 9, 11:14 PM CST	Special Weather Statement	LZK	Scott	46 min
Mar 9, 11:21 PM CST	Special Weather Statement	LZK	Perry	39 min
Mar 9, 11:25 PM CST	Severe Thunderstorm Warning	LZK	Conway, Perry	35 min
Mar 10, 12:02 AM CST	Special Weather Statement	LZK	Saline	43 min
Mar 10, 12:14 AM CST	Severe Thunderstorm Warning	LZK	Pulaski, Saline	46 min
Mar 10, 12:17 AM CST	Special Weather Statement	LZK	Polk	43 min
Mar 10, 12:42 AM CST	Special Weather Statement	LZK	Arkansas	33 min
Mar 10, 1:02 AM CST	Special Weather Statement	LZK	Grant	58 min
Mar 10, 2:02 AM CST	Special Weather Statement	LZK	Lincoln	43 min
Mar 10, 2:40 AM CST	Special Weather Statement	LZK	Drew	50 min
Mar 10, 4:22 AM CST	Lake Wind Advisory	LZK	Arkansas, Bradley, Calhoun, Cleburne, Cleveland, Dallas and 17 more	11 hr
Mar 10, 4:51 AM CST	Freeze Warning	LZK	Baxter, Fulton, Izard, Marion, Sharp, Stone	22 hr

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.