Alert archive / Arkansas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 313, NWS Little Rock, AR

October 18, 2004Independence County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Oct 18, 2004, 4:12 PM CDT for Independence County, Arkansas. It was in force for 63 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: Oct 18, 2004, 4:12 PM CDT (21:12 UTC)
Expired: Oct 18, 2004, 5:15 PM CDT
In force: 63 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Independence County, AR

The radar

The Little Rock radar (KLZK), 119 km from the middle of the area, began a volume at 21:13 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
Oct 18, 4:05 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.2 hours before the alert went out and 179 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: 1504 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 520 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 390 m²/s²
0-3 km storm-relative helicity: 482 m²/s²
Significant tornado parameter: 3.3
Supercell composite: 16.6

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 Oct 18, 3:20 PM CDT, 52 minutes earlier.

Area forecast discussion, Oct 18, 3:20 PM CDT, 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
320 PM CDT MON OCT 18 2004

.DISCUSSION...
PLENTY OF ACTIVE WEATHER THIS MORNING...WITH NUMEROUS WARNINGS
ISSUED. STORM SURVEYS BEING CONDUCTED THIS AFTERNOON FOR DAMAGE SEEN
IN SALINE COUNTY.

WARM FRONT IN SOUTHERN MISSOURI...WITH A DRY LINE IN EASTERN
OKLAHOMA. DRY LINE WILL MOVE EAST LATE THIS AFTERNOON/EARLY TONIGHT.
ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS
EVENING...BUT NOT LOOKING AT WIDESPREAD SEVERE WEATHER. COULD SEE
SOME HEAVY RAINFALL AGAIN...ESPECIALLY IN THE SOUTHWEST...BUT DUE TO
UNCERTAINTY...HAVE NOT INCLUDED IN ZONES. DID INCREASE QPF AMOUNTS
THOUGH.

ACTIVITY WILL MOVE TO THE EAST/NORTHEAST TUESDAY AS UPPER TROUGH
MOVES INTO THE GREAT LAKES REGION. KEPT SOME POPS IN THE
EAST/SOUTHEAST...DECREASING IN THE AFTERNOON AND EVENING HOURS.

DECREASED POPS WEDNESDAY...AS UPPER RIDGE MOVES OVERHEAD AND
MOISTURE IS LIMITED.. DID NOT FEEL CONFIDENT PULLING POPS ALL
TOGETHER...BUT SHOWED A DOWNWARD TREND. KEPT CHANCE POPS GOING FOR
THURSDAY...BUT THESE MAY NEED TO BE DECREASED AS WELL.

NEXT SYSTEM MOVES INTO THE STATE FRIDAY...WITH COLD FRONT ENTERING
LATE FRIDAY AFTERNOON. WITH THE LOW PRESSURE CENTER HEADING TO THE
NORTHEAST...NOT A LOT OF SUPPORT WITH THIS SYSTEM IN REGARDS TO
SEVERE WEATHER. STILL ENOUGH LIFT FOR CHANCE OF SHOWERS AND
THUNDERSTORMS. FRONT MOVES THROUGH THE STATE SATURDAY...BUT WILL
MOVE BACK NORTH ON SUNDAY. DRY WEATHER IN THE FORECAST FOR MONDAY AS
UPPER RIDGE MOVES NORTH.

TEMPS WILL BE TRICKY DEPENDING ON CLOUD COVER...BUT FOR THE MOST
PART WILL BE ABOVE NORMAL. READINGS WILL BEGIN TO COOL DOWN WITH
COLD FRONT SATURDAY...BEFORE CLIMBING AGAIN WITH WARM FRONT ON
SUNDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
LITTLE ROCK AR    65  84  64  84 /  30  20  20  20
HARRISON AR       59  82  57  82 /  30  10  10  20
HOT SPRINGS AR    65  85  64  85 /  30  20  20  20
PINE BLUFF AR     67  84  65  85 /  40  30  20  20
MOUNTAIN HOME AR  59  81  57  81 /  30  10  10  20
MONTICELLO AR     68  84  66  85 /  50  30  20  20
SEARCY AR         64  83  62  83 /  40  20  20  20
MOUNT IDA AR      65  85  63  85 /  30  20  10  20
RUSSELLVILLE AR   63  83  61  84 /  30  20  10  20
&&

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

58

Hazardous weather outlook, Oct 18, 12:30 PM CDT, 3 hours 42 minutes before

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In the hours before

Local storm report, Oct 18, 11:09 AM CDT, 5 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1109 AM CDT MON OCT 18 2004

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

0741 AM     TSTM WND DMG     BALD KNOB               35.31N 91.57W
10/18/2004                   WHITE              AR   LAW ENFORCEMENT

            TREES DOWN ALONG MINGO CREEK AND LONE STAR RD

0741 AM     TORNADO          HASKELL                 34.51N 92.64W
10/18/2004                   SALINE             AR   PUBLIC

            REPORTED ALONG WEST CHEYNEY RD. TREES DOWN AND SIDING
            TORN OFF MOBILE HOMES

0950 AM     TSTM WND DMG     7 ESE MABELVALE         34.61N 92.27W
10/18/2004                   PULASKI            AR   LAW ENFORCEMENT

            I-530 IMPASSABLE BETWEEN WOODSON AND HENSLEY ROADS

0957 AM     TSTM WND DMG     2 S EAST END            34.52N 92.32W
10/18/2004                   SALINE             AR   LAW ENFORCEMENT

            TREES DOWN

&&

BB

Local storm report, Oct 18, 11:09 AM CDT, 5 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1109 AM CDT MON OCT 18 2004

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

0741 AM     TSTM WND DMG     BALD KNOB               35.31N 91.57W
10/18/2004                   WHITE              AR   LAW ENFORCEMENT

            TREES DOWN ALONG MINGO CREEK AND LONE STAR RD

0920 AM     TORNADO          HASKELL                 34.51N 92.64W
10/18/2004                   SALINE             AR   PUBLIC

            REPORTED ALONG WEST CHEYNEY RD. TREES DOWN AND SIDING
            TORN OFF MOBILE HOMES

0950 AM     TSTM WND DMG     7 ESE MABELVALE         34.61N 92.27W
10/18/2004                   PULASKI            AR   LAW ENFORCEMENT

            I-530 IMPASSABLE BETWEEN WOODSON AND HENSLEY ROADS

0957 AM     TSTM WND DMG     2 S EAST END            34.52N 92.32W
10/18/2004                   SALINE             AR   LAW ENFORCEMENT

            TREES DOWN

&&

BB

Local storm report, Oct 18, 12:48 PM CDT, 3 hours 24 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
Oct 18, 5:58 AM CDT	Severe Thunderstorm Warning	LZK	Fulton	32 min
Oct 18, 6:26 AM CDT	Severe Thunderstorm Warning	LZK	Faulkner	34 min
Oct 18, 6:51 AM CDT	Severe Thunderstorm Warning	LZK	Lonoke, White	39 min
Oct 18, 7:04 AM CDT	Severe Thunderstorm Warning	LZK	Saline	26 min
Oct 18, 7:26 AM CDT	Severe Thunderstorm Warning	LZK	Pulaski	49 min
Oct 18, 7:38 AM CDT	Severe Thunderstorm Warning	LZK	White, Woodruff	52 min
Oct 18, 7:54 AM CDT	Flash Flood Warning	LZK	Pulaski	2 hr
Oct 18, 8:45 AM CDT	Severe Thunderstorm Warning	LZK	Saline	45 min
Oct 18, 9:00 AM CDT	Severe Thunderstorm Warning	LZK	Monroe, Woodruff	45 min
Oct 18, 9:17 AM CDT	Tornado Warning	LZK	Pulaski, Saline	43 min
Oct 18, 9:51 AM CDT	Tornado Warning	LZK	Lonoke	39 min
Oct 18, 9:57 AM CDT	Tornado Warning	LZK	Pulaski	18 min
Oct 18, 10:26 AM CDT	Tornado Warning	LZK	Lonoke, Prairie	64 min
Oct 18, 10:53 AM CDT	Flash Flood Warning	LZK	Lonoke	2 hr
Oct 18, 11:14 AM CDT	Flash Flood Warning	LZK	Prairie	2 hr
Oct 18, 11:19 AM CDT	Tornado Warning	LZK	Monroe	56 min
Oct 18, 11:30 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Lonoke, Prairie	45 min
Oct 18, 3:50 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne	40 min
Oct 18, 5:14 PM CDT	Severe Thunderstorm Warning	LZK	Jackson	31 min
Oct 18, 5:26 PM CDT	Severe Thunderstorm Warning	LZK	Independence	34 min
Oct 18, 5:50 PM CDT	Severe Thunderstorm Warning	LZK	Dallas	40 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2004 Every severe thunderstorm warning in 2004

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.