Alert archive / Arkansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 108, NWS Little Rock, AR

April 30, 2002Woodruff County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Apr 30, 2002, 8:32 AM CDT for Woodruff County, Arkansas. It was in force for 28 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 30, 2002, 8:32 AM CDT (13:32 UTC)
Expired: Apr 30, 2002, 9:00 AM CDT
In force: 28 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Woodruff County, AR

The radar

The Little Rock radar (KLZK), 101 km from the middle of the area, began a volume at 13:35 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

Little Rock, AR (KLZK), launched 12:00Z, 1.5 hours before the alert went out and 124 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: 956 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 700 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 278 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.8

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 30, 5:26 AM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Apr 30, 5:26 AM CDT, 3 hours 6 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
400 AM CDT TUE APR 30 2002

SOMEWHAT OF A COMPLICATED FORECAST FOR US TODAY. WARM FRONTAL
BOUNDARY WILL MOVE BACK NORTHWARD ACROSS ARKANSAS TODAY. SERIES OF
H5 SHORTWAVES WILL AFFECT THE STATE THROUGH TONIGHT. ATMOSPHERE
SHOULD BE PRETTY UNSTABLE TODAY WITH SCATTERED THUNDERSTORMS
EXPECTED. PER SPC OUTLOOK...WILL MENTION SOME STORMS SEVERE FOR
TODAY. STILL EXPECTING SOME EVENING THUNDERSTORMS TONIGHT...MAINLY
THE NORTHEASTERN HALF OF THE FORECAST AREA. SOME DISCREPANCY BETWEEN
MODELS ON WHEN COLD FRONT WILL MAKE IT INTO THE STATE. WILL LEAN
MORE TOWARD FRONT GETTING INTO NORTHWEST PART OF THE STATE BY LATE
WEDNESDAY WITH FRONT BEING PRETTY WELL THROUGH THE STATE BY THURSDAY
AT 1200Z. SHOULD BE A PRETTY FAIR CAP ON THE ATMOSPHERE ON
WEDNESDAY...PLUS OVERALL MOISTURE WILL BE SOMEWHAT LACKING. THUS...
HAVE GONE WITH SMALL POPS MAINLY OVER THE NORTHERN HALF ON WEDNESDAY
AND EARLY WEDNESDAY NIGHT. DRY WEATHER PATTERN SHOULD BE ON TAP FOR
MOST OF THE REST OF THE WEEK. NEXT CHANCE FOR PRECIPITATION SHOULD
BE SMALL CHANCES BEGINNING SATURDAY NIGHT.

FCSTID = 22
HRO   79  62  86  55 /  50  30  20  20
LIT   82  65  88  62 /  50  30  10  10
HOT   82  66  88  62 /  50  30  10  10
PBF   83  67  88  67 /  40  20  10  10

.LZK...NONE.

In the hours before

Special weather statement, Apr 30, 5:00 AM CDT, 3 hours 32 minutes before

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-301830-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT TUE APR 30 2002

...SLIGHT RISK OF SEVERE WEATHER TODAY OVER MUCH OF ARKANSAS...

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR MUCH OF ARKANSAS
TODAY.

A STATIONARY FRONTAL BOUNDARY WAS LOCATED ACROSS SOUTHERN ARKANSAS
THIS MORNING. SCATTERED THUNDERSTORMS WILL DEVELOP ALONG AND NORTH OF
THE FRONT THROUGH THIS AFTERNOON. AS THE FRONT LIFTS NORTHWARD
TODAY...THESE STORMS ARE FORECAST TO INCREASE IN COVERAGE AND
INTENSITY AND SPREAD ACROSS CENTRAL AND NORTHERN ARKANSAS. SOME
STORMS WILL BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS BEING THE
PRIMARY THREAT.

STORM SPOTTERS...EMERGENCY MANAGERS...AND HAM RADIO OPERATORS MAY
NEED TO BE ACTIVATED OVER MUCH OF THE STATE LATER TODAY.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION
STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR THE LATEST WEATHER
INFORMATION FROM YOUR NATIONAL WEATHER SERVICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 4:08 AM CDT	Severe Thunderstorm Warning	LZK	Pike	37 min
Apr 30, 6:09 AM CDT	Severe Thunderstorm Warning	LZK	Johnson	21 min
Apr 30, 8:07 AM CDT	Severe Thunderstorm Warning	LZK	Independence	13 min
Apr 30, 8:15 AM CDT	Severe Thunderstorm Warning	LZK	Jackson	45 min
Apr 30, 9:21 AM CDT	Severe Thunderstorm Warning	LZK	Stone	24 min
Apr 30, 9:44 AM CDT	Severe Thunderstorm Warning	LZK	Stone	16 min
Apr 30, 10:55 AM CDT	Severe Thunderstorm Warning	LZK	Fulton	35 min
Apr 30, 10:58 AM CDT	Severe Thunderstorm Warning	LZK	Fulton	32 min
Apr 30, 10:59 AM CDT	Severe Thunderstorm Warning	LZK	Sharp	31 min
Apr 30, 11:03 AM CDT	Severe Thunderstorm Warning	LZK	Baxter	27 min
Apr 30, 11:26 AM CDT	Severe Thunderstorm Warning	LZK	Fulton, Izard	34 min
Apr 30, 11:28 AM CDT	Severe Thunderstorm Warning	LZK	Sharp	32 min
Apr 30, 11:47 AM CDT	Severe Thunderstorm Warning	LZK	Boone	43 min
Apr 30, 12:02 PM CDT	Severe Thunderstorm Warning	LZK	Sharp	13 min
Apr 30, 12:06 PM CDT	Severe Thunderstorm Warning	LZK	Newton	39 min
Apr 30, 12:25 PM CDT	Severe Thunderstorm Warning	LZK	Jackson	20 min
Apr 30, 12:30 PM CDT	Severe Thunderstorm Warning	LZK	Searcy	45 min
Apr 30, 1:04 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Stone	26 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2002 Every severe thunderstorm warning in 2002

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.