Alert archive / Arkansas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 229, NWS Little Rock, AR

July 14, 2016Arkansas County, Monroe County, Prairie County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 14, 2016, 8:03 PM CDT for Arkansas County, Monroe County, Prairie County, Arkansas. It was in force for 42 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 14, 2016, 8:03 PM CDT (01:03 UTC)
Expired
Jul 14, 2016, 8:45 PM CDT
In force
42 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Arkansas County, AR, Monroe County, AR, Prairie County, AR

The radar

The Little Rock radar (KLZK), 85 km from the middle of the area, began a volume at 01:02 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
Jul 14, 3:05 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.1 hours before the alert went out and 281 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, Jackson, MS at 00:00Z on 2016-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1043 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, Jackson, MS at 00:00Z on 2016-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1043 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1449 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
88 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 14, 2:29 PM CDT, 5 hours 34 minutes earlier.

Area forecast discussion, Jul 14, 2:29 PM CDT, 5 hours 34 minutes before
Area Forecast Discussion
National Weather Service Little Rock AR
229 PM CDT THU JUL 14 2016

.SHORT TERM...Today Through Saturday
Immediate forecast concern is the MCS approaching the forecast
area from eastern Oklahoma. This convective system is expected to
continue to slide to the southeast...along a well defined
instability gradient...exiting the forecast area by 15/04z.
Recent output of CAM type models have converged towards this
solution. Near term forecasts account for the expected movement
of this system.

An additional complex is expected to form overnight to the west
of the initial system...and again move to the
southeast...affecting at least western sections after 15/06z.

Mid level lapse rates...and forcing along smaller scale boundaries will
provide support for convection during the rest of this period.
Conditions supporting organized convective complexes...as of those
supporting today's activity...are not expected. Any severe
thunderstorm activity will be limited to diurnally
enhanced...pulse type single cells.

&&

.LONG TERM...Saturday Night Through Thursday
If I could sum up the extended forecast in two words it would be
"ridge" and "hot". An upper level ridge will dominate through the
entire period and above normal temperatures will be the rule.
Afternoon max values could top out over 100 in some areas.

There will be some low precipitation chances toward the latter half
of the period as the center of the ridge settles in over the
mid plains.

&&

.PRELIMINARY POINT TEMPS/POPS...
Batesville AR     73  89  70  90 /  50  40  30  20
Camden AR         77  93  75  95 /  50  30  30  40
Harrison AR       69  86  69  87 /  50  40  30  40
Hot Springs AR    75  92  75  92 /  70  40  30  30
Little Rock   AR  76  92  74  92 /  60  40  30  30
Monticello AR     77  92  75  93 /  70  40  30  40
Mount Ida AR      73  91  72  91 /  70  50  30  30
Mountain Home AR  70  87  70  87 /  50  40  30  30
Newport AR        73  89  71  90 /  50  40  30  20
Pine Bluff AR     76  92  74  92 /  60  40  30  30
Russellville AR   74  91  74  91 /  70  50  30  30
Searcy AR         73  90  72  91 /  50  40  30  30
Stuttgart AR      75  91  73  92 /  50  40  30  30
&&

.LZK Watches/Warnings/Advisories...NONE.
&&

Short Term...55 / Long Term...53
Hazardous weather outlook, Jul 14, 3:40 AM CDT, 16 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
340 AM CDT THU JUL 14 2016

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-151000-
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-
340 AM CDT THU JUL 14 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...TODAY AND TONIGHT

SOME THUNDERSTORMS WILL BE POSSIBLE THIS MORNING OVER WESTERN AND
SOUTHWEST SECTIONS OF THE AREA AS STORMS CURRENTLY ONGOING OVER
EASTERN OKLAHOMA DRIFT SOUTHEAST INTO ARKANSAS. THESE STORMS HAVE
BEEN OCCASIONALLY SEVERE IN OKLAHOMA...AND MAY CONTINUE TO SEE
SOME STRONG TO SEVERE WINDS WITH THESE STORMS AS THEY MOVE INTO
ARKANSAS. THERE COULD ALSO BE SOME LARGE HAIL WITH THIS ACTIVITY.

MORE THUNDERSTORMS ARE CURRENTLY DROPPING SOUTH ACROSS SOUTHERN
MISSOURI...AND WILL CONTINUE TO SEE POTENTIAL FOR SOME STRONG
THUNDERSTORMS THROUGH THIS MORNING ACROSS NORTHERN AND NORTHEAST
SECTIONS OF THE STATE.

LATE THIS MORNING INTO THE AFTERNOON HOURS...THUNDERSTORMS WILL
REMAIN POSSIBLE AS ADDITIONAL ACTIVITY DEVELOPS ON OUTFLOW
BOUNDARIES FROM THIS EARLY MORNING ACTIVITY. SOME STRONG TO SEVERE
STORMS COULD BE SEEN...WITH DAMAGING WINDS AND LARGE HAIL THE
PRIMARY THREATS. SOME LOCALLY HEAVY RAINFALL COULD ALSO BE SEEN
WITH ANY OF THE THUNDERSTORM ACTIVITY.

ADDITIONAL THUNDERSTORMS MAY DEVELOP LATE THIS EVENING INTO THE
OVERNIGHT PERIOD...WITH THE BEST POTENTIAL ACROSS THE NORTHERN
HALF OF THE STATE. SOME STRONG TO SEVERE STORMS COULD BE SEEN WITH
THIS ACTIVITY AS WELL...WITH DAMAGING WINDS AND LARGE HAIL THE
PRIMARY THREATS. AN ISOLATED FLASH FLOOD THREAT COULD ALSO BE
SEEN.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SOME THUNDERSTORMS WILL BE POSSIBLE THROUGHOUT THE DAY ON FRIDAY.
WHILE THE THREAT FOR WIDESPREAD SEVERE WEATHER IS LOW...SOME
ISOLATED STRONG TO SEVERE STORMS COULD BE SEEN.

CHANCES FOR RAINFALL DECREASE INTO EARLY NEXT WEEK AS HIGH
PRESSURE BUILDS ALOFT OVER THE CENTRAL UNITED STATES.
TEMPERATURES WILL THEN INCREASE WELL INTO THE 90S TO AROUND 100.
HEAT INDEX VALUES MAY INCREASE OVER 105 DEGREES DURING THIS SAME
PERIOD...WITH HEAT ADVISORIES POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING.

&&

VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV/LZK.

62/44

In the hours before

Local storm report, Jul 14, 7:19 PM CDT, 44 minutes before
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Local storm report, Jul 14, 7:22 PM CDT, 41 minutes before
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Local storm report, Jul 14, 7:25 PM CDT, 38 minutes before
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Local storm report, Jul 14, 7:26 PM CDT, 37 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Local storm report, Jul 14, 7:59 PM CDT, 4 minutes before
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Local storm report, Jul 14, 8:00 PM CDT, 3 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 7:13 PM CDTSevere Thunderstorm WarningLZKArkansas, Desha, Drew, Jefferson, Lincoln, Monroe47 min
Jul 14, 7:28 PM CDTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie, Woodruff47 min
Jul 14, 8:48 PM CDTSpecial Weather StatementLZKPhillips27 min
Jul 15, 6:25 PM CDTSpecial Weather StatementLZKSaline35 min
Jul 15, 6:29 PM CDTSevere Thunderstorm WarningLZKSaline46 min
Jul 15, 6:35 PM CDTSpecial Weather StatementLZKPulaski25 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2016Every severe thunderstorm warning in 2016

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.