Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 232, NWS Little Rock, AR

June 15, 2017Desha County, Drew County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jun 15, 2017, 6:41 PM CDT for Desha County, Drew County, Arkansas. It was in force for 34 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: Jun 15, 2017, 6:41 PM CDT (23:41 UTC)
Expired: Jun 15, 2017, 7:15 PM CDT
In force: 34 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Desha County, AR, Drew County, AR

The radar

The Little Rock radar (KLZK), 144 km from the middle of the area, began a volume at 23:43 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 12:00Z, 11.7 hours before the alert went out and 188 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: 2561 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 835 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

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 Jun 15, 3:00 PM CDT, 3 hours 41 minutes earlier.

Area forecast discussion, Jun 15, 3:00 PM CDT, 3 hours 41 minutes before

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Hazardous weather outlook, Jun 15, 3:30 PM CDT, 3 hours 11 minutes before

Hazardous Weather Outlook...Update
National Weather Service Little Rock AR
330 PM CDT Thu Jun 15 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-161000-
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-
330 PM CDT Thu Jun 15 2017

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

.DAY ONE...This Afternoon and Tonight

Isolated to at times scattered showers and thunderstorms will be
possible across southern Arkansas this afternoon to early evening,
then again over parts of northern to central areas tonight. A
isolated strong to severe storm may be seen, with large hail and
damaging winds the main threats.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

On Friday and into the weekend, the overall threat for organized
hazardous weather is expected to remain low. However, chances for
isolated to scattered thunderstorms will be greatest Sunday and
Monday, and mainly in the afternoon to evening. An isolated strong
to severe storm may be possible, but again the threat for seeing
organized and widespread severe weather will remain low.

.Spotter Information Statement...

Spotter activation is not anticipated due to the limited nature
of any severe storms.

&&

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

56/51/59

In the hours before

Local storm report, Jun 15, 2:51 PM CDT, 3 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
251 PM CDT THU JUN 15 2017

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

1020 AM     HAIL             4 S OMAHA               36.39N  93.19W
06/15/2017  E1.00 INCH       BOONE              AR   PUBLIC

&&

EVENT NUMBER LZK1700225

JBH

Special weather statement, Jun 15, 6:34 PM CDT, 7 minutes before

Special Weather Statement
National Weather Service Little Rock AR
634 PM CDT THU JUN 15 2017

ARZ065-069-160015-
Drew AR-Desha AR-
634 PM CDT THU JUN 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DESHA AND EASTERN
DREW COUNTIES UNTIL 715 PM CDT...

At 634 PM CDT, Doppler radar was tracking a strong thunderstorm near
McGehee, or 7 miles north of Dermott, moving southeast at 15 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

Locations impacted include...
Dermott...                        Arkansas City...
Tillar...                         Winchester...
McGehee...                        Reed...
Jerome...                         Baxter...
Halley...                         Selma...
Masonville...                     Collins...
McArthur...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3358 9116 3356 9124 3352 9125 3352 9132
      3354 9134 3352 9135 3356 9135 3357 9145
      3339 9146 3339 9162 3369 9169 3378 9146
      3360 9113
TIME...MOT...LOC 2334Z 312DEG 12KT 3363 9149

226

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 7:00 AM CDT	Special Weather Statement	LZK	Boone	45 min
Jun 15, 8:02 AM CDT	Severe Thunderstorm Warning	LZK	Boone, Marion	24 min
Jun 15, 8:42 AM CDT	Special Weather Statement	LZK	Prairie	63 min
Jun 15, 10:02 AM CDT	Severe Thunderstorm Warning	LZK	Boone	43 min
Jun 15, 10:54 AM CDT	Special Weather Statement	LZK	Marion	51 min
Jun 15, 6:34 PM CDT	Special Weather Statement	LZK	Drew	41 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.