Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 217, NWS Little Rock, AR

May 28, 20177 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 28, 2017, 12:38 AM CDT for 7 counties in 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
May 28, 2017, 12:38 AM CDT (05:38 UTC)
Expired
May 28, 2017, 1:15 AM CDT
In force
37 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Conway County, AR, Garland County, AR, Logan County, AR, Perry County, AR, Pope County, AR, Scott County, AR, Yell County, AR

The radar

The Little Rock radar (KLZK), 96 km from the middle of the area, began a volume at 05:37 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.

IssuedProductOfficeLasted
May 28, 12:18 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 5.6 hours before the alert went out and 288 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2017-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2017-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.0

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 May 27, 6:24 PM CDT, 6 hours 14 minutes earlier.

Area forecast discussion, May 27, 6:24 PM CDT, 6 hours 14 minutes before
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Hazardous weather outlook, May 27, 12:45 PM CDT, 11 hours 53 minutes before
Hazardous Weather Outlook...Update
National Weather Service Little Rock AR
1245 PM CDT Sat May 27 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-281000-
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-
1245 PM CDT Sat May 27 2017

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

.DAY ONE...Today and Tonight

Thunderstorms will develop later today and especially this evening
and tonight across Arkansas, as an upper storm system and eventually
a cold front move across the region. Some of the storms will be
strong to severe, with large hail, damaging winds and a few
tornadoes possible.

Later this evening and into Sunday morning, the potential for strong
to severe storms will continue, as a cold front moves through the
state. These thunderstorms could also become severe, with damaging
winds possible with the strongest storms as this activity looks to
form into a larger, more organized line or complex. Large hail and a
few brief tornadoes will also be possible as this line or complex
moves southward through much of Arkansas Sunday morning. Locally
heavy rain will also be possible, resulting in an isolated flash
flood threat.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Sunday morning, the threat for seeing severe weather will have
decreased, but the cold front will still be dropping south across
the state. Additional thunderstorms will be possible Sunday
afternoon and evening across the southeast half of the state as the
cold front pushes through this region of Arkansas. Additional strong
to severe thunderstorms may again be possible during this period.

Calmer and drier conditions will be seen for Monday into Tuesday.
The threat for hazardous weather will then become low.

.Spotter Information Statement...

Spotter activation may be needed tonight and early Sunday.

&&

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

44/62/59

In the hours before

Special weather statement, May 27, 10:31 PM CDT, 2 hours 7 minutes before
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Local storm report, May 27, 10:34 PM CDT, 2 hours 4 minutes before
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Local storm report, May 27, 10:38 PM CDT, 2 hours before
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Special weather statement, May 27, 10:46 PM CDT, 1 hour 52 minutes before
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Special weather statement, May 27, 11:07 PM CDT, 1 hour 31 minutes before
Special Weather Statement
National Weather Service Little Rock AR
1107 PM CDT SAT MAY 27 2017

ARZ003>005-012>015-021>023-280500-
Pope AR-Baxter AR-Marion AR-Searcy AR-Johnson AR-Newton AR-Stone AR-
Boone AR-Van Buren AR-Izard AR-
1107 PM CDT SAT MAY 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN STONE...NORTHERN
JOHNSON...NEWTON...WEST CENTRAL IZARD...SEARCY...SOUTHERN MARION...
NORTHERN VAN BUREN...SOUTHERN BOONE...SOUTHEASTERN BAXTER AND
NORTHERN POPE COUNTIES UNTIL MIDNIGHT CDT...

At 1107 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Pettigrew to near Walnut to Carver to near
Dugger. Movement was east at 50 mph.

Half inch hail and wind gusts of 50 to 55 mph will be possible with
these storms.

Locations impacted include...
Harrison...                       Clinton...
Marshall...                       Jasper...
Calico Rock...                    Dover...
Hector...                         Western Grove...
Valley Springs...                 Dugger...
Olvey...                          Witts Spring...
Erbie...                          Duff...
Upper Buffalo Wilderness Area...  Maumee...
Devils Knob...                    Bohannon...
Lost Valley State Park...         Pruitt...

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.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A tornado watch remains in effect until 200 AM CDT for western,
central and north central Arkansas.

LAT...LON 3611 9202 3585 9221 3561 9246 3538 9309
      3572 9370 3577 9369 3576 9352 3588 9352
      3589 9350 3594 9349 3597 9345 3608 9344
      3608 9348 3612 9348 3612 9330 3624 9330
TIME...MOT...LOC 0407Z 282DEG 44KT 3577 9360 3587 9332 3600 9305 3613
9295

62
Special weather statement, May 27, 11:50 PM CDT, 48 minutes before
Special Weather Statement
National Weather Service Little Rock AR
1150 PM CDT SAT MAY 27 2017

ARZ004-005-012>014-021>023-280530-
Pope AR-Baxter AR-Marion AR-Searcy AR-Johnson AR-Newton AR-Stone AR-
Van Buren AR-
1150 PM CDT SAT MAY 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN STONE...JOHNSON...
NEWTON...SEARCY...SOUTHERN MARION...NORTHERN VAN BUREN...SOUTHEASTERN
BOONE...SOUTHEASTERN BAXTER AND NORTHERN POPE COUNTIES UNTIL 1230 AM
CDT...

At 1149 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Moore to near Cass. Movement was northeast
at 55 mph.

Dime size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Clarksville...                    Clinton...
Fairfield Bay...                  Marshall...
Jasper...                         Lamar...
Hector...                         Western Grove...
Shirley...                        Witts Spring...
Erbie...                          Duff...
Upper Buffalo Wilderness Area...  Herron...
Maumee...                         Devils Knob...
Bohannon...                       Lost Valley State Park...
Pruitt...                         Elberta...

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.

&&

A tornado watch remains in effect until 200 AM CDT for western,
central and north central Arkansas.

LAT...LON 3619 9223 3571 9223 3561 9225 3542 9318
      3550 9370 3577 9369 3576 9352 3588 9352
      3589 9350 3594 9349 3597 9345 3608 9344
      3612 9305 3612 9289 3613 9289
TIME...MOT...LOC 0449Z 244DEG 46KT 3578 9305 3572 9374

62

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 8:09 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton51 min
May 27, 8:27 PM CDTSevere Thunderstorm WarningLZKFulton, Sharp63 min
May 27, 9:34 PM CDTSevere Thunderstorm WarningLZKBaxter, Marion41 min
May 27, 9:38 PM CDTSevere Thunderstorm WarningLZKBoone, Marion52 min
May 27, 9:49 PM CDTSpecial Weather StatementLZKCleburne, Independence, Jackson, Stone, Van Buren, White and 1 more41 min
May 27, 10:03 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton42 min
May 27, 10:28 PM CDTSpecial Weather StatementLZKCleburne, Van Buren, White, Woodruff47 min
May 27, 10:31 PM CDTSpecial Weather StatementLZKBaxter, Marion44 min
May 27, 10:46 PM CDTSpecial Weather StatementLZKBoone44 min
May 27, 11:07 PM CDTSpecial Weather StatementLZKNewton, Pope, Searcy53 min
May 27, 11:21 PM CDTSevere Thunderstorm WarningLZKBaxter, Marion, Newton, Searcy, Stone, Van Buren27 min
May 27, 11:50 PM CDTSpecial Weather StatementLZKJohnson, Newton, Pope, Searcy, Van Buren40 min
May 28, 12:15 AM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Newton, Pope, Searcy45 min
May 28, 12:47 AM CDTSevere Thunderstorm WarningLZKMontgomery, Polk, Scott58 min
May 28, 12:49 AM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Faulkner, Johnson, Logan, Perry and 5 more41 min
May 28, 1:07 AM CDTSevere Thunderstorm WarningLZKLogan, Scott53 min
May 28, 1:24 AM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Grant, Jefferson, Lonoke, Perry and 4 more26 min
May 28, 1:40 AM CDTSevere Thunderstorm WarningLZKGarland, Montgomery, Pike, Scott, Yell50 min
May 28, 1:52 AM CDTSpecial Weather StatementLZKLonoke, Pulaski38 min
May 28, 2:07 AM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Perry, Pike, Saline and 1 more53 min
May 28, 2:18 AM CDTTornado WarningLZKGarland, Perry, Saline, Yell27 min
May 28, 2:29 AM CDTSevere Thunderstorm WarningLZKGrant, Hot Spring, Jefferson, Saline31 min
May 28, 2:48 AM CDTSevere Thunderstorm WarningLZKClark, Dallas, Grant, Hot Spring57 min
May 28, 2:49 AM CDTSevere Thunderstorm WarningLZKCleveland, Grant, Jefferson, Lincoln26 min
May 28, 3:46 AM CDTSpecial Weather StatementLZKCalhoun, Cleveland, Ouachita44 min
May 28, 4:27 AM CDTSpecial Weather StatementLZKBradley, Drew48 min
May 28, 5:11 AM CDTSpecial Weather StatementLZKDrew49 min
May 28, 10:58 AM CDTRiver Flood WarningLZKRandolph4 days

Nearby

Severe Thunderstorm Warnings in Arkansas, 2017Every 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.