Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 88, NWS Little Rock, AR

April 10, 20177 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 10, 2017, 9:15 PM CDT for 7 counties in Arkansas. It was in force for 60 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: Apr 10, 2017, 9:15 PM CDT (02:15 UTC)
Expired: Apr 10, 2017, 10:15 PM CDT
In force: 60 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Arkansas County, AR, Cleveland County, AR, Desha County, AR, Grant County, AR, Jefferson County, AR, Lincoln County, AR, Monroe County, AR

The radar

The Little Rock radar (KLZK), 88 km from the middle of the area, began a volume at 02:15 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

Shreveport, LA (KBAD), launched 00:00Z, 2.3 hours before the alert went out and 266 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: 741 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1114 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.2

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 Apr 10, 8:45 PM CDT, 30 minutes earlier.

Area forecast discussion, Apr 10, 8:45 PM CDT, 30 minutes before

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Hazardous weather outlook, Apr 10, 4:30 PM CDT, 4 hours 45 minutes before

Hazardous Weather Outlook...Update
National Weather Service Little Rock AR
430 PM CDT Mon Apr 10 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-111000-
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-
430 PM CDT Mon Apr 10 2017

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

.DAY ONE...This Evening and Tonight

Scattered thunderstorms will be possible this evening and into
tonight, as an upper level system and cold front gradually move
through Arkansas. While the overall threat for severe weather will
remain fairly limited, a few strong to severe thunderstorms may be
seen. The best chances of seeing strong storms will be over the
southwest part of the state. The main threats will be large hail and
damaging winds. The threat of any tornadoes is very low.

Also, some locally heavy rainfall may be seen mainly over central
and southern sections of the state. Rainfall amounts could approach
1 to 2 inches in spots with an isolated and localized flash flood
threat possible as the cold front slowly pushes through.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms will remain in the forecast for Tuesday as the cold
front stalls over the state. There may remain some potential for an
isolated strong to severe thunderstorm...but the overall severe
weather threat will remain low.

Chances for thunderstorms will decrease for the rest of the
week...though an afternoon thunderstorm or two may still develop
each day. The threat for any severe weather will remain isolated.

.Spotter Information Statement...

Spotter activation is not anticipated at this time due to the
limited and isolated nature of the severe storm threat.

&&

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

56/62/59

In the hours before

Special weather statement, Apr 10, 6:42 PM CDT, 2 hours 33 minutes before

Special Weather Statement
National Weather Service Little Rock AR
642 PM CDT MON APR 10 2017

ARZ052>054-110030-
Hot Spring AR-Pike AR-Clark AR-
642 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR CLARK...PIKE...SOUTHWESTERN HOT
SPRING AND SOUTHEASTERN MONTGOMERY COUNTIES UNTIL 730 PM CDT...

At 641 PM CDT, Doppler radar was tracking an area of strong
thunderstorms near Crater Of Diamonds State Park, or near
Murfreesboro, moving northeast at 40 mph.

Small hail from pea size to half inch and winds in excess of 40 mph
will be possible with these storms. Very heavy rain will also be
seen with dangerous lightning. Localized flood of low lying areas
and ponding of water on roadways will be seen.

Locations impacted include...
Arkadelphia...                    Murfreesboro...
Gurdon...                         Amity...
Caddo Valley...                   Okolona...
Beirne...                         Gum Springs in Clark County...
Halfway...                        Crater Of Diamonds State Park...
Narrows Dam...                    Richwoods...
Delight...                        Antoine...
Billstown...                      Alpine...
Curtis...                         Point Cedar...
Nathan...                         Pisgah...

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 3417 9382 3434 9343 3434 9341 3437 9337
      3409 9289 3383 9322 3385 9330 3389 9330
      3396 9337 3396 9348 3394 9352 3400 9373
      3401 9383
TIME...MOT...LOC 2341Z 239DEG 35KT 3403 9358

59

Special weather statement, Apr 10, 6:46 PM CDT, 2 hours 29 minutes before

Special Weather Statement...Corrected
National Weather Service Little Rock AR
646 PM CDT MON APR 10 2017

ARZ034-046-047-056-057-065-110030-
Monroe AR-Prairie AR-Woodruff AR-
646 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN WOODRUFF...EASTERN
PRAIRIE...NORTHERN MONROE COUNTIES...UNTIL 730 PM CDT...

At 641 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Des Arc to 9 miles northwest of Brinkley
to near Fredonia. Movement was east at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Stuttgart...                      Brinkley...
Des Arc...                        Clarendon...
De Valls Bluff...                 White River National Wildlife R...
Gillett...                        Holly Grove...
Fredonia...                       Almyra...
St. Charles...                    Ulm...
Roe...                            Hunter...
Alfrey...                         Allendale...
Dobbs Landing...                  Peppers Landing...
Palmer...                         Hallsville...

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.

&&

LAT...LON 3500 9115 3492 9115 3491 9111 3487 9111
      3487 9110 3479 9111 3472 9155 3507 9154
      3509 9104 3501 9104
TIME...MOT...LOC 2343Z 263DEG 22KT 3499 9144 3497 9130 3486 9131

57

Corrected counties and polygon

Special weather statement, Apr 10, 7:27 PM CDT, 1 hour 48 minutes before

Special Weather Statement
National Weather Service Little Rock AR
727 PM CDT MON APR 10 2017

ARZ052>054-062-066-110115-
Hot Spring AR-Pike AR-Clark AR-Dallas AR-Ouachita AR-
727 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR CLARK...SOUTHEASTERN PIKE...
WESTERN CALHOUN...WESTERN DALLAS...NORTHWESTERN OUACHITA AND SOUTHERN
HOT SPRING COUNTIES UNTIL 815 PM CDT...

At 726 PM CDT, Doppler radar was tracking an area of strong
thunderstorms over Beirne, or 12 miles northeast of Prescott, moving
east at 40 mph.

Small hail from pea to half inch and winds in excess of 40 mph will
be possible with these storms. Very heavy rain will also be seen
with dangerous lightning. Localized flood of low lying areas and
ponding of water on roadways will be seen.

Locations impacted include...
Camden...                         Arkadelphia...
Gurdon...                         Sparkman...
Chidester...                      Okolona...
Whelen Springs...                 Beirne...
Gum Springs in Clark County...    Poison Springs State Park...
White Oak Lake State Park...      Richwoods...
Amy...                            Curtis...
Ouachita...                       Reader...
Vaden...                          Warner...
Lester...                         Dalark...

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 3377 9310 3381 9314 3380 9319 3383 9322
      3384 9327 3386 9330 3389 9330 3396 9337
      3395 9341 3400 9347 3423 9290 3355 9277
      3352 9311
TIME...MOT...LOC 0026Z 265DEG 36KT 3392 9322

59

Special weather statement, Apr 10, 8:07 PM CDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service Little Rock AR
807 PM CDT MON APR 10 2017

ARZ053>055-062-063-066-067-110145-
Hot Spring AR-Grant AR-Cleveland AR-Calhoun AR-Clark AR-Dallas AR-
Ouachita AR-
807 PM CDT MON APR 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CLEVELAND...
SOUTHEASTERN CLARK...SOUTHWESTERN GRANT...NORTHERN CALHOUN...
DALLAS...OUACHITA AND SOUTHEASTERN HOT SPRING COUNTIES UNTIL 845 PM
CDT...

At 807 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles east of Arkadelphia to near Sparkman to
near Poison Springs State Park. Movement was east at 40 mph.

Dime size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Camden...                         Sheridan...
Fordyce...                        Bearden...
Leola...                          Sparkman...
Thornton...                       Carthage...
Chidester...                      Jenkins Ferry State Park...
Dogwood...                        Poison Springs State Park...
Harlow...                         Highland Industrial Park...
Thiel...                          White Oak Lake State Park...
East Camden...                    Amy...
Ain...                            Lono...

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.

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

&&

LAT...LON 3362 9311 3383 9303 3419 9300 3432 9235
      3399 9231 3358 9238 3352 9311
TIME...MOT...LOC 0107Z 249DEG 34KT 3415 9291 3387 9286 3361 9304

Brown

Local storm report, Apr 10, 9:03 PM CDT, 12 minutes before

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Local storm report, Apr 10, 9:13 PM CDT, 2 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
Apr 10, 7:27 PM CDT	Special Weather Statement	LZK	Clark, Ouachita	48 min
Apr 10, 8:07 PM CDT	Special Weather Statement	LZK	Dallas, Grant, Ouachita	38 min
Apr 10, 8:25 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Cleveland, Dallas, Grant, Jefferson, Ouachita	65 min
Apr 10, 9:36 PM CDT	Special Weather Statement	LZK	Lonoke, Prairie, Pulaski	39 min
Apr 10, 10:15 PM CDT	Special Weather Statement	LZK	Arkansas	45 min
Apr 10, 10:20 PM CDT	Special Weather Statement	LZK	Lonoke, Monroe, Prairie	55 min
Apr 10, 11:05 PM CDT	Special Weather Statement	LZK	Bradley	40 min
Apr 10, 11:46 PM CDT	Special Weather Statement	LZK	Bradley	44 min
Apr 11, 12:17 AM CDT	Special Weather Statement	LZK	Bradley	43 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.