Alert archive / Arkansas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 99, NWS Little Rock, AR

April 24, 2004Grant County, Hot Spring County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 24, 2004, 1:29 PM CDT for Grant County, Hot Spring County, Arkansas. It was in force for 46 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 24, 2004, 1:29 PM CDT (18:29 UTC)
Expired: Apr 24, 2004, 2:15 PM CDT
In force: 46 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

Counties Grant County, AR, Hot Spring County, AR

The radar

The Little Rock radar (KLZK), 71 km from the middle of the area, began a volume at 18:30 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 24, 12:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.5 hours before the alert went out and 226 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: 410 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 816 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.3

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 24, 4:00 AM CDT, 9 hours 29 minutes earlier.

Area forecast discussion, Apr 24, 4:00 AM CDT, 9 hours 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
400 AM CDT SAT APR 24 2004

.DISCUSSION...
PATTERN SHOULD FINALLY CHANGE AS THE WEEKEND PROGRESSES AND BRING AN
END TO THE SEIGE OF HEAVY RAIN AND SEVERE WEATHER...BUT NOT RIGHT
AWAY. FRONTAL BOUNDARY GOT PUSHED INTO SOUTH CENTRAL ARKANSAS BUT
EXPECT IT TO QUICKLY LIFT BACK NORTH DURING THE DAY. MOST OF THE RAIN
AGAIN IN WESTERN AND NORTHERN AREAS BUT IT SHOULD SLOWLY SPREAD TO THE
EAST DURING THE DAY AS THE UPPER LOW IN THE WEST STARTS TO MOVE OUT
TO THE NORTHEAST. WILL START OUT WITH CHANCE POPS IN THE SOUTHEAST
INCREASING TO CATEGORICAL IN THE NORTHWEST THEN SHOW INCREASE IN
POPS DURING THE DAY. THE COLD FRONT WILL MOVE INTO THE AREA TONIGHT AND
SLOWLY MOVE ACROSS THE AREA TONIGHT AND SHOULD MOVE OFF TO THE EAST ON
SUNDAY. THE BEST CHANCE OF RAIN AND HEAVIEST RAIN WILL LIKELY
ACCOMPANY THE FRONT TONIGHT. WILL GO WITH 90 PERCENT POPS ACROSS
THE AREA TONIGHT AND WILL STRESS HEAVY RAIN. THE INSTABILITY AND
DYNAMICS ALSO SUGGEST A CHANCE OF SEVERE STORMS...BUT THAT IS NOT
LOOKING AS SERIOUS AS THE FLASH FLOOD THREAT SO WILL PLAY UP THE
HEAVY RAINS BUT NOT PLAY UP SEVERE WEATHER IN THE ZONES. RAIN SHOULD
DECREASE FROM THE WEST LATE TONIGHT AND WILL LOWER POPS THERE.
CHANCES OF RAIN WILL DECREASE SUNDAY AS THE FRONT MOVES AWAY AND
THE UPPER TROF PASSES OVER THE AREA. WILL KEEP HIGH POPS EARLY IN
THE EAST BUT HAVE ALL RAIN OUT OF THE FORECAST BY THE END OF THE
DAY. A SECONDARY SHORT WAVE MOVES THROUGH LATE SUNDAY NIGHT AND
EARLY MONDAY. SOME MOISTURE ACCOMPANIES THIS SYSTEM BUT WILL ONLY
FORECAST AN INCREASE IN CLOUDS FOR NOW AND NO MENTION OF RAIN.
MADE ONLY MINOR CHANGES TO TEMP FORECASTS.

DUE TO ACTIVE WEATHER...DID NOT MAKE MANY CHANGES TO EXTENDED EXCEPT
TO BRING FORECASTS OF SOME ELEMENTS MORE IN LINE WITH SURROUNDING
OFFICES.
&&

.PRELIMINARY POINT TEMPS/POPS...
LITTLE ROCK AR    75  61  73  54 /  60  90  80  10
HARRISON AR       68  54  67  48 /  90  90  50  10
HOT SPRINGS AR    74  61  73  54 /  70  90  70  10
PINE BLUFF AR     78  63  74  54 /  50  90  80  10
MOUNTAIN HOME AR  68  54  67  48 /  90  90  60  10
MONTICELLO AR     79  64  75  55 /  40  90  90  10
SEARCY AR         75  60  72  53 /  70  90  80  10
MOUNT IDA AR      73  60  73  54 /  70  90  70  10
RUSSELLVILLE AR   71  58  71  53 /  80  90  60  10
&&

.LZK WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH UNTIL 600 PM CDT
SATURDAY FOR ZONES ARZ003>007...ARZ012>016...ARZ021>025...
ARZ030>034...ARZ037>039.
&&

29

Hazardous weather outlook, Apr 24, 12:45 PM CDT, 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1245 PM CDT SAT APR 24 2004

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-251000-
ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-
CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-
INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-
MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-
PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-
WOODRUFF-YELL-
1245 PM CDT SAT APR 24 2004

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS ARKANSAS TODAY AND
TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS
THE ENTIRE AREA TODAY AND TONIGHT. SOME THUNDERSTORMS WILL CONTAIN
HEAVY RAINFALL. HEAVY RAINS ON SATURATED GROUND IN NORTHERN AND
PARTS OF CENTRAL ARKANSAS COULD CAUSE FLASH FLOODING.

HEAVY RAINS IN THE REST OF THE AREA COULD CAUSE SOME FLOODING OF
LOW LYING AND POOR DRAINAGE AREAS...ESPECIALLY TONIGHT.

THE MAIN SEVERE WEATHER WILL BE DAMAGING WINDS AND LARGE HAIL BUT
TORNADOES ARE POSSIBLE. ISOLATED SEVERE STORMS ARE POSSIBLE ANY TIME
TODAY AND TONIGHT...BUT THE BEST CHANCE OF SEVERE WEATHER WILL BE
DURING THE LATE AFTERNOON AND EVENING. TORNADOES WILL ALSO BE
POSSIBLE ESPECIALLY DURING THE LATE EVENING.

A FLASH FLOOD WATCH IS IN EFFECT THROUGH TODAY IN NORTHERN AND
PARTS OF CENTRAL ARKANSAS AND THE WATCH WILL LIKELY BE EXTENDED
INTO TONIGHT IN MUCH OF THE SAME AREA...AND ADDITIONAL AREAS
MAY BE INCLUDED.

THE HEAVY RAINS WILL ALSO RESULT IN RISING RIVERS AND RIVER FLOODING
WILL OCCUR IN SOME AREAS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

RAIN WILL DECREASE SUNDAY. HEAVY RAINS SHOULD MOVE OUT OF THE AREA
BUT SOME FLOODING FROM RUNOFF COULD CONTINUE THROUGH SUNDAY. ALSO
RIVER FLOODING WILL CONTINUE IN SOME AREAS FOR SEVERAL DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED ANYWHERE IN ARKANSAS AT ANY TIME
TODAY AND TONIGHT.

29

In the hours before

Local storm report, Apr 24, 8:50 AM CDT, 4 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
850 AM CDT SAT APR 24 2004

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

0700 AM     FLASH FLOOD      HARRISON                36.24N 93.12W
04/24/2004                   BOONE              AR   LAW ENFORCEMENT

            HWY 7S FLOODED

0745 AM     FLASH FLOOD      YARDELLE                36.07N 93.00W
04/24/2004                   NEWTON             AR   AIRPLANE PILOT

            HWY 123 FLOODED

&&

220

Local storm report, Apr 24, 9:37 AM CDT, 3 hours 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
937 AM CDT SAT APR 24 2004

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

0925 AM     FLASH FLOOD      4 S HARRISON            36.18N 93.12W
04/24/2004                   BOONE              AR   LAW ENFORCEMENT

            HWY 7 CLOSED

&&

220

Local storm report, Apr 24, 9:47 AM CDT, 3 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
947 AM CDT SAT APR 24 2004

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

0935 AM     FLASH FLOOD      LONDON                  35.33N 93.25W
04/24/2004                   POPE               AR   LAW ENFORCEMENT

            MILLS CREEK ROAD FLOODED

0935 AM     FLASH FLOOD      DOVER                   35.40N 93.11W
04/24/2004                   POPE               AR   LAW ENFORCEMENT

            RUSHING ROAD FLOODED

&&

220

Local storm report, Apr 24, 10:18 AM CDT, 3 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1018 AM CDT SAT APR 24 2004

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

0820 AM     FLASH FLOOD      8 E OZONE               35.63N 93.31W
04/24/2004                   JOHNSON            AR   LAW ENFORCEMENT

            HWY 123 BRIDGE NEAR JOHNSON/POPE COUNTY BORDER
            FLOODED...PAVEMENT STRIPPED FROM BRIDGE

0930 AM     FLASH FLOOD      2 E LAMAR               35.44N 93.35W
04/24/2004                   JOHNSON            AR   LAW ENFORCEMENT

            HWY 359 CLOSED BETWEEN LAMAR AND FLAT ROCK

&&

220

Local storm report, Apr 24, 10:31 AM CDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1031 AM CDT SAT APR 24 2004

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

0930 AM     FLASH FLOOD      2 E BULL SHOALS         36.38N 92.55W
04/24/2004                   BAXTER             AR   LAW ENFORCEMENT

            CAR WASHED OFF ROAD IN LAKEVIEW...OCCUPANTS HAD TO BE
            RESCUED

&&

220

Local storm report, Apr 24, 11:40 AM CDT, 1 hour 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1140 AM CDT SAT APR 24 2004

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

1120 AM     FLASH FLOOD      2 S DANVILLE            35.02N 93.39W
04/24/2004                   YELL               AR   LAW ENFORCEMENT

            KINGSTON ROAD FLOODED

&&

220

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 9:30 PM CDT	Flash Flood Warning	LZK	Jackson	2 hr
Apr 23, 11:06 PM CDT	Severe Thunderstorm Warning	LZK	Johnson	44 min
Apr 24, 12:40 AM CDT	Flash Flood Warning	LZK	Johnson	3 hr
Apr 24, 3:04 AM CDT	Severe Thunderstorm Warning	LZK	Searcy	41 min
Apr 24, 4:51 AM CDT	Flash Flood Warning	LZK	Boone, Johnson, Newton	3 hr
Apr 24, 7:13 AM CDT	Flash Flood Warning	LZK	Baxter, Marion, Searcy	3 hr
Apr 24, 7:17 AM CDT	Flash Flood Warning	LZK	Montgomery	3 hr
Apr 24, 7:44 AM CDT	Flash Flood Warning	LZK	Boone, Johnson, Newton	3 hr
Apr 24, 9:36 AM CDT	Flash Flood Warning	LZK	Pope	3 hr
Apr 24, 10:13 AM CDT	Flash Flood Warning	LZK	Baxter, Marion, Searcy	4 hr
Apr 24, 10:44 AM CDT	Flash Flood Warning	LZK	Boone, Johnson, Newton	3 hr
Apr 24, 11:28 AM CDT	Flash Flood Warning	LZK	Yell	4 hr
Apr 24, 11:53 AM CDT	Tornado Warning	LZK	Conway, Van Buren	32 min
Apr 24, 12:29 PM CDT	Tornado Warning	LZK	Van Buren	31 min
Apr 24, 1:28 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, White	42 min
Apr 24, 2:03 PM CDT	Severe Thunderstorm Warning	LZK	Saline	37 min
Apr 24, 3:26 PM CDT	Severe Thunderstorm Warning	LZK	Jefferson	44 min
Apr 24, 3:48 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke	42 min
Apr 24, 4:02 PM CDT	Tornado Warning	LZK	Lonoke	28 min
Apr 24, 4:07 PM CDT	Flash Flood Warning	LZK	Izard	118 min
Apr 24, 4:33 PM CDT	Severe Thunderstorm Warning	LZK	Prairie	47 min
Apr 24, 5:03 PM CDT	Severe Thunderstorm Warning	LZK	Woodruff	42 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.