Alert archive / Arkansas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 285, NWS Little Rock, AR

August 7, 20165 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 7, 2016, 3:20 PM CDT for 5 counties in Arkansas. It was in force for 40 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: Aug 7, 2016, 3:20 PM CDT (20:20 UTC)
Expired: Aug 7, 2016, 4:00 PM CDT
In force: 40 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Conway County, AR, Faulkner County, AR, Perry County, AR, Pope County, AR, Van Buren County, AR

The radar

The Little Rock radar (KLZK), 63 km from the middle of the area, began a volume at 20:19 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 12:00Z, 8.3 hours before the alert went out and 206 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: 211 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 200 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 Aug 7, 2:44 PM CDT, 36 minutes earlier.

Area forecast discussion, Aug 7, 2:44 PM CDT, 36 minutes before

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Hazardous weather outlook, Aug 7, 5:21 AM CDT, 9 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
521 AM CDT SUN AUG 7 2016

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-081030-
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-
521 AM CDT SUN AUG 7 2016

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL SPREAD ACROSS THE FORECAST AREA
TODAY...BEGINNING IN THE MORNING HOURS AND LASTING THROUGH LATE
THIS AFTERNOON OR EARLY EVENING. WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED BUT A COUPLE OF STRONG TO SEVERE STORMS CANNOT BE RULED
OUT. DAMAGING WINDS WOULD BE THE MOST LIKELY HAZARD.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THROUGH
SATURDAY. WHILE THE THREAT OF WIDESPREAD SEVERE WEATHER IS
LOW...STRONGER STORMS WILL BE CAPABLE OF PRODUCING GUSTY WINDS...AND
HEAVY RAINFALL.

BY WEDNESDAY...WARM TEMPERATURES AND HIGH HUMIDITY MAY PUSH HEAT
INDEX VALUES BACK ABOVE 105 DEGREES...AND THIS COULD CONTINUE INTO
FRIDAY. COOLER TEMPERATURES ARE EXPECTED BY THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

&&

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

In the hours before

Special weather statement, Aug 7, 2:03 PM CDT, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
203 PM CDT SUN AUG 7 2016

ARZ012-013-021-022-071915-
JOHNSON AR-SEARCY AR-NEWTON AR-POPE AR-
203 PM CDT SUN AUG 7 2016

...SIGNIFICANT WEATHER ADVISORY FOR JOHNSON...SOUTHERN NEWTON...
SOUTHWESTERN SEARCY AND NORTHERN POPE COUNTIES UNTIL 215 PM CDT...

AT 203 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR EULA TO NEAR ROSETTA
TO 7 MILES EAST OF CASS...AND MOVING SOUTH AT 20 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CLARKSVILLE...                    LAMAR...
HARTMAN...                        ROSETTA...
SMYRNA...                         SPADRA...
BERTHA...                         DEVILS KNOB...
WOODLAND...                       HINKLE...
HOLMAN...                         DILLEN...
SOLO...                           MOORE...
HOYT...                           LAKE DARDANELLE...
COAL HILL...                      BEN HUR...
BASS...                           NEW SPADRA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3568 9281 3566 9281 3543 9319 3542 9343
      3543 9343 3543 9346 3541 9347 3540 9371
      3572 9370 3575 9369 3575 9331 3593 9299
TIME...MOT...LOC 1903Z 346DEG 19KT 3588 9299 3573 9332 3572 9370

44

Local storm report, Aug 7, 3:02 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.

Issued	Product	Office	Counties	Lasted
Aug 7, 2:03 PM CDT	Special Weather Statement	LZK	Johnson	12 min
Aug 7, 2:14 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Newton, Pope, Searcy	46 min
Aug 7, 2:23 PM CDT	Flash Flood Warning	LZK	Boone, Johnson, Marion, Newton, Pope, Searcy and 1 more	3 hr
Aug 7, 2:39 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Johnson, Pope, Searcy, Van Buren	51 min
Aug 7, 3:35 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Van Buren	25 min
Aug 7, 3:57 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Van Buren	33 min
Aug 7, 4:10 PM CDT	Special Weather Statement	LZK	Pulaski	50 min
Aug 7, 4:17 PM CDT	Special Weather Statement	LZK	Faulkner	43 min
Aug 7, 4:26 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Pulaski	19 min
Aug 7, 4:33 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski, White	21 min
Aug 7, 4:38 PM CDT	Special Weather Statement	LZK	Polk	37 min
Aug 7, 4:44 PM CDT	Special Weather Statement	LZK	White	46 min
Aug 7, 4:48 PM CDT	Special Weather Statement	LZK	Pulaski	42 min
Aug 7, 5:05 PM CDT	Special Weather Statement	LZK	Jefferson, Lincoln	40 min
Aug 7, 5:09 PM CDT	Special Weather Statement	LZK	Jefferson	51 min
Aug 7, 5:47 PM CDT	Special Weather Statement	LZK	Cleveland, Jefferson, Lincoln	43 min
Aug 7, 6:11 PM CDT	Special Weather Statement	LZK	Arkansas	49 min
Aug 7, 6:35 PM CDT	Special Weather Statement	LZK	Ouachita	40 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2016 Every 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.