Alert archive / Arkansas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 274, NWS Little Rock, AR

July 7, 2017Fulton County, Izard County, Sharp County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 7, 2017, 10:22 PM CDT for Fulton County, Izard County, Sharp County, Arkansas. It was in force for 24 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
Jul 7, 2017, 10:22 PM CDT (03:22 UTC)
Expired
Jul 7, 2017, 10:46 PM CDT
In force
24 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fulton County, AR, Izard County, AR, Sharp County, AR

The radar

The Little Rock radar (KLZK), 160 km from the middle of the area, began a volume at 03:24 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

Springfield, MO (KSGF), launched 00:00Z, 3.4 hours before the alert went out and 199 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, Springfield, MO at 00:00Z on 2017-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1004 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 00:00Z on 2017-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
1004 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
1929 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 7, 6:46 PM CDT, 3 hours 36 minutes earlier.

Area forecast discussion, Jul 7, 6:46 PM CDT, 3 hours 36 minutes before
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Hazardous weather outlook, Jul 7, 5:00 AM CDT, 17 hours 22 minutes before
Hazardous Weather Outlook
National Weather Service Little Rock AR
500 AM CDT Fri Jul 7 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-081000-
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-
500 AM CDT Fri Jul 7 2017

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

.DAY ONE...Today and Tonight

Isolated showers and thunderstorms will be mainly over southern
Arkansas today, as the weak front sags through the area. Overall
coverage will be low, as well as the threat of any strong to
severe storm. Some patchy dense fog will be seen Friday morning
as well at late tonight, but coverage is forecast to be limited.
Tonight another upper system and cold front is forecast to move
into Arkansas, and bring a chance of showers and thunderstorms

.DAYS TWO THROUGH SEVEN...Saturday Through Thursday

Isolated to scattered showers and thunderstorms are possible
through the period, as the upper northwest flow brings weather
systems to Arkansas. Some decrease in chance and coverage will be
seen later in the weekend and into next week, as upper level high
pressure starts to build in from the west. Overall, the threat of
any severe storms will be low and isolated.

.Spotter Information Statement...

Spotter activation will not be needed.

&&

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

59/51

In the hours before

Special weather statement, Jul 7, 8:20 PM CDT, 2 hours 2 minutes before
Special Weather Statement
National Weather Service Little Rock AR
820 PM CDT FRI JUL 7 2017

ARZ003>005-080200-
Baxter AR-Marion AR-Boone AR-
820 PM CDT FRI JUL 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARION...BOONE AND
NORTH CENTRAL BAXTER COUNTIES UNTIL 900 PM CDT...

At 819 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles southeast of Taneyville to near
Roberson Hollow. Movement was east at 30 mph.

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

Locations impacted include...
Harrison...                       Diamond City...
Bergman...                        Lead Hill...
Omaha...                          Myrtle...
Roberson Hollow...                Self...
Ozark Isle...                     Lakeway...
Winington...                      Clark Hill...
Dodd City...                      Capps...
Willis...                         Price Place...
Bellefonte...                     Crumpler Subdivision...
Zinc...                           South Lead Hill...

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 3649 9238 3617 9313 3634 9330 3650 9329
TIME...MOT...LOC 0119Z 291DEG 24KT 3664 9291 3650 9330

226
Special weather statement, Jul 7, 8:54 PM CDT, 1 hour 28 minutes before
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Special weather statement, Jul 7, 9:26 PM CDT, 56 minutes before
Special Weather Statement
National Weather Service Little Rock AR
926 PM CDT FRI JUL 7 2017

ARZ004>007-013>015-080300-
Baxter AR-Marion AR-Searcy AR-Stone AR-Sharp AR-Fulton AR-Izard AR-
926 PM CDT FRI JUL 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN STONE...NORTHEASTERN
NEWTON...IZARD...NORTHERN SEARCY...SOUTHERN MARION...SOUTHEASTERN
BOONE...BAXTER...FULTON AND NORTHERN SHARP COUNTIES UNTIL 1000 PM
CDT...

At 926 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Ott to near Colfax to 7 miles northwest of
Maumee. Movement was east at 50 mph.

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

Locations impacted include...
Mountain Home...                  Cherokee Village...
Mountain View...                  Melbourne...
Salem in Fulton County...         Ash Flat...
Horseshoe Bend...                 Gassville...
Calico Rock...                    Highland in Sharp County...
Mammoth Spring...                 Hardy...
Oxford...                         Norfork...
Salesville...                     Western Grove...
Viola...                          Pineville...
Briarcliff...                     Franklin...

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 3647 9136 3642 9135 3642 9131 3639 9131
      3637 9128 3633 9128 3575 9224 3609 9295
      3611 9294 3628 9246 3650 9217 3650 9141
TIME...MOT...LOC 0226Z 284DEG 42KT 3643 9212 3627 9240 3612 9275

226
Special weather statement, Jul 7, 9:34 PM CDT, 48 minutes before
Special Weather Statement
National Weather Service Little Rock AR
934 PM CDT FRI JUL 7 2017

ARZ004-013-080300-
Marion AR-Searcy AR-
934 PM CDT FRI JUL 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NEWTON...CENTRAL
SEARCY AND SOUTHWESTERN MARION COUNTIES UNTIL 1000 PM CDT...

At 933 PM CDT, Doppler radar was tracking a strong thunderstorm near
Duff, or 14 miles northwest of Marshall, moving southeast at 35 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Marshall...                       Marsena...
Kay...                            Bohannon...
Imo...                            Duff...
Point Peter...                    Watts...
St. Joe...                        Pindall...
Gilbert...                        Zach...
Canaan...                         Morning Star...
Silver Hill...                    Snowball...
Lone Pine...                      Woolum Recreation Area...
Baker Ford...

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 3593 9243 3573 9273 3596 9295 3605 9294
      3614 9285
TIME...MOT...LOC 0233Z 309DEG 31KT 3603 9285

226
Local storm report, Jul 7, 9:52 PM CDT, 30 minutes before
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Special weather statement, Jul 7, 10:04 PM CDT, 18 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:20 PM CDTSpecial Weather StatementLZKBoone40 min
Jul 7, 8:54 PM CDTSpecial Weather StatementLZKBaxter, Boone, Marion36 min
Jul 7, 9:26 PM CDTSpecial Weather StatementLZKBaxter, Fulton, Izard, Stone34 min
Jul 7, 9:34 PM CDTSpecial Weather StatementLZKSearcy26 min
Jul 7, 10:04 PM CDTSpecial Weather StatementLZKCleburne, Izard, Sharp, Stone41 min
Jul 7, 10:16 PM CDTSevere Thunderstorm WarningLZKFulton, Sharp29 min
Jul 7, 10:42 PM CDTSpecial Weather StatementLZKFulton18 min
Jul 7, 11:41 PM CDTSevere Thunderstorm WarningLZKJackson, White, Woodruff49 min
Jul 8, 1:03 AM CDTSpecial Weather StatementLZKMonroe, Prairie42 min
Jul 8, 1:36 AM CDTSpecial Weather StatementLZKNewton39 min
Jul 8, 1:37 AM CDTSpecial Weather StatementLZKStone23 min
Jul 8, 2:23 AM CDTSpecial Weather StatementLZKNewton, Pope, Searcy37 min
Jul 8, 2:58 AM CDTSpecial Weather StatementLZKConway, Pope, Searcy, Van Buren47 min
Jul 8, 3:34 AM CDTSpecial Weather StatementLZKLogan11 min
Jul 8, 3:43 AM CDTSpecial Weather StatementLZKConway, Logan, Pope, Yell47 min
Jul 8, 4:14 AM CDTSpecial Weather StatementLZKConway, Faulkner, Logan, Perry, Yell46 min
Jul 8, 4:54 AM CDTSpecial Weather StatementLZKFaulkner, Garland, Lonoke, Perry, Pulaski, Saline and 2 more21 min
Jul 8, 5:07 AM CDTSpecial Weather StatementLZKLogan, Scott38 min
Jul 8, 5:18 AM CDTSpecial Weather StatementLZKGarland, Grant, Hot Spring, Lonoke, Monroe, Prairie and 2 more42 min
Jul 8, 5:47 AM CDTSpecial Weather StatementLZKLogan, Scott43 min
Jul 8, 6:02 AM CDTSpecial Weather StatementLZKArkansas, Cleveland, Dallas, Grant, Hot Spring, Jefferson and 1 more43 min
Jul 8, 6:39 AM CDTSpecial Weather StatementLZKScott51 min
Jul 8, 6:41 AM CDTSpecial Weather StatementLZKArkansas49 min
Jul 8, 6:42 AM CDTSpecial Weather StatementLZKCalhoun, Cleveland, Dallas48 min
Jul 8, 7:23 AM CDTSpecial Weather StatementLZKDesha37 min
Jul 8, 7:26 AM CDTSpecial Weather StatementLZKBradley, Calhoun, Ouachita49 min
Jul 8, 7:27 AM CDTSpecial Weather StatementLZKScott48 min

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.