Alert archive / Arkansas / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 36, NWS Little Rock, AR

April 5, 2005Conway County, Perry County, Pope County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 5, 2005, 10:22 PM CDT for Conway County, Perry County, Pope County, Arkansas. It was in force for 53 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 5, 2005, 10:22 PM CDT (03:22 UTC)
Expired: Apr 5, 2005, 11:15 PM CDT
In force: 53 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

Counties Conway County, AR, Perry County, AR, Pope County, AR

The radar

The Little Rock radar (KLZK), 71 km from the middle of the area, began a volume at 03:25 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.

Issued	Product	Office	Lasted
Apr 5, 8:30 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.4 hours before the alert went out and 204 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: 672 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 937 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.8

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 5, 3:04 PM CDT, 7 hours 18 minutes earlier.

Area forecast discussion, Apr 5, 3:04 PM CDT, 7 hours 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
304 PM CDT TUE APR 5 2005

.SHORT TERM....TONIGHT THROUGH FRIDAY...
OBSERVATIONAL DATA INDICATES CONVECTION IS INITIATING ALONG A DRY LINE
IN CENTRAL OKLAHOMA. INDIVIDUAL CELLS ARE CURRENTLY EXIHIBITING A
MOVEMENT TOWARDS THE NORTH-NORTHEAST.

CONSIDERABLE CONVECTIVE INHIBITION EXISTS ACROSS THE FORECAST
AREA...HOWEVER AS THE UPPER LOW NOW CENTERED OVER THE TEXAS
PANHANDLE APPROACHES...THE INHIBITION SHOULD WEAKEN.  FORECAST THERMODYNAMIC
AND SHEAR PROFILES SUGGEST A SQUALL LINE IS THE MOST LIKELY MODE OF
CONVECTION TO AFFECT THE FORECAST AREA OVERNIGHT.

THE UPPER LOW WILL STILL PROMOTE SCATTERED CONVECTION ON
WEDNESDAY...ESPECIALLY ACROSS THE EAST.

&&

.LONG TERM....FRIDAY NIGHT THROUGH TUESDAY...
HIGH PRESSURE WILL BEGIN THE EXTENDED PERIOD ACROSS THE MID SOUTH.
THE UPPER RIDGE WILL MOVE EAST AND BE CENTERED OVER ARKANSAS
SATURDAY MORNING. HIGH PRESSURE AND DRY WEATHER WILL CONTINUE
THROUGH EARLY SUNDAY. A COLD FRONT IN THE PLAINS WILL SLOWLY MOVE
EAST SUNDAY. THE LOW WILL RUN INTO STRONG HIGH PRESSURE OVER THE
EASTERN U.S. ON TUESDAY. THIS WILL SLOW OR POSSIBLY EVEN STALL THE
FRONT OVER ARKANSAS. WILL KEEP A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN FOR THE WEST SUNDAY AFTERNOON...THEN A CHANCE OF
SHOWERS AND THUNDERSTORMS SUNDAY NIGHT THROUGH TUESDAY IN ALL AREAS.
WILL NEED TO KEEP AN EYE ON THIS SYSTEM. SHOULD THE MOVEMENT BE AS
SLOW AS THE GFS IS SHOWING...HEAVY RAIN COULD BE A POSSIBILITY NEXT
WEEK. TEMPERATURES WILL BE SEASONABLE THROUGH THE PERIOD.

&&

.PRELIMINARY POINT TEMPS/POPS...
LITTLE ROCK   AR  58  70  49  66 /  70  40  30  20
HARRISON AR       55  62  45  62 /  70  40  40  20
HOT SPRINGS AR    58  68  48  67 /  60  40  30  20
PINE BLUFF AR     59  72  49  68 /  70  40  30  30
MOUNTAIN HOME AR  56  64  45  62 /  70  50  40  20
MONTICELLO AR     60  73  50  69 /  60  30  30  30
SEARCY AR         58  69  48  65 /  70  40  40  30
MOUNT IDA AR      58  67  48  67 /  60  40  30  10
RUSSELLVILLE AR   56  65  47  65 /  60  40  40  20
&&

.LZK WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

SHORT TERM...55 / LONG TERM....51

Hazardous weather outlook, Apr 5, 4:40 PM CDT, 5 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
440 PM CDT TUE APR 5 2005

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-061100-
INDEPENDENCE-CONWAY-FAULKNER-IZARD-NEWTON-SEARCY-SCOTT-YELL-PERRY-
JEFFERSON-STONE-HOT SPRING-GRANT-WHITE-WOODRUFF-GARLAND-CLEVELAND-
DALLAS-CALHOUN-OUACHITA-DESHA-LINCOLN-LOGAN-BRADLEY-SALINE-BAXTER-
MARION-SHARP-FULTON-BOONE-MONTGOMERY-POLK-JACKSON-CLEBURNE-
VAN BUREN-POPE-PIKE-PULASKI-MONROE-LONOKE-PRAIRIE-DREW-ARKANSAS-
CLARK-JOHNSON-
440 PM CDT TUE APR 5 2005

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

.DAY ONE...REST OF THIS AFTERNOON AND TONIGHT

A BROKEN LINE OF SHOWERS AND THUNDERSTORMS DEVELOPED THIS AFTERNOON
OVER EASTERN OKLAHOMA IN ADVANCE OF A STORM SYSTEM OVER THE WESTERN
PLAINS. THE STORM SYSTEM IS FORECAST MOVE SLOWLY EASTWARD INTO
OKLAHOMA TONIGHT. AS A RESULT...THE SHOWER AND THUNDERSTORM ACTIVITY
IS EXPECTED TO CONTINUE WORKING EASTWARD AND MOVE INTO WESTERN
ARKANSAS BETWEEN 6 AND 8 PM THIS EVENING.

THE MAIN CONCERN WITH THE STORMS WILL BE STRONG TO DAMAGING WINDS
AND LARGE HAIL TONIGHT. HOWEVER...WITH A LOT OF WIND ENERGY AND SOME
TURNING OF THE WIND WITH HEIGHT...ISOLATED TORNADOES CANNOT BE RULED
OUT...ESPECIALLY WEST OF A LINE FROM HARRISON...TO RUSSELLVILLE TO
HOT SPRINGS AND ARKADELPHIA. THE LINE OF STORMS IS EXPECTED TO
CONTINUE WORKING EASTWARD ACROSS THE STATE TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WEDNESDAY OVER MUCH
OF ARKANSAS. THE STORM SYSTEM IN THE SOUTHERN PLAINS WILL MOVE
OVERHEAD...AND WILL BE ASSOCIATED WITH COLD AIR ALOFT. THIS WILL
MAKE IT EASIER FOR HAIL TO FORM IN DEVELOPING STORMS. THE STORMS ARE
EXPECTED TO POP UP WEDNESDAY AFTERNOON AND EVENING OVER MUCH OF THE
STATE.

.SPOTTER ACTIVATION STATEMENT...

STORM SPOTTER ACTIVATION WILL LIKELY BE NECESSARY LATER THIS EVENING
OVER MUCH OF THE AREA.

&&

FOR THE LATEST GRAPHICAL AND TEXT FORECASTS AND OUTLOOKS...PLEASE
VISIT OUR WEB SITE AT WWW.SRH.WEATHER.GOV/LZK

44

In the hours before

Local storm report, Apr 5, 8:40 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
840 PM CDT TUE APR 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0835 PM     HAIL             2 S COVE                34.41N 94.41W
04/05/2005  0.75 INCH        POLK               AR   LAW ENFORCEMENT

&&

BB

Local storm report, Apr 5, 9:21 PM CDT, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
921 PM CDT TUE APR 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0848 PM     HAIL             HATFIELD                34.49N 94.38W
04/05/2005  0.75 INCH        POLK               AR   LAW ENFORCEMENT

&&

BB

Local storm report, Apr 5, 9:41 PM CDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
941 PM CDT TUE APR 05 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0930 PM     HAIL             LANGLEY                 34.32N 93.83W
04/05/2005  0.75 INCH        PIKE               AR   CO-OP OBSERVER

&&

BB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 8:26 PM CDT	Severe Thunderstorm Warning	LZK	Polk	64 min
Apr 5, 9:26 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Pike, Polk	49 min
Apr 5, 10:03 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan	42 min
Apr 5, 10:29 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Saline	61 min
Apr 5, 10:49 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Van Buren	56 min
Apr 5, 11:02 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski, Saline	58 min
Apr 5, 11:19 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Stone	56 min
Apr 5, 11:33 PM CDT	Severe Thunderstorm Warning	LZK	White	57 min
Apr 6, 7:30 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson	45 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2005 Every severe thunderstorm warning in 2005

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.