Alert archive / Arkansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 68, NWS Little Rock, AR

March 30, 2002Jefferson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 30, 2002, 4:48 AM CST for Jefferson County, Arkansas. It was in force for 27 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: Mar 30, 2002, 4:48 AM CST (10:48 UTC)
Expired: Mar 30, 2002, 5:15 AM CST
In force: 27 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Jefferson County, AR

The radar

The Little Rock radar (KLZK), 70 km from the middle of the area, began a volume at 10:51 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 00:00Z, 10.8 hours before the alert went out and 192 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: 1435 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 1436 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Mar 30, 4:44 AM CST, 4 minutes earlier.

Area forecast discussion, Mar 30, 4:44 AM CST, 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
444 AM CST SAT MAR 30 2002

PROBLEM OF THE DAY CONTINUES TO BE FRONT...THUNDERSTORMS AND HEAVY
RAINFALL CHANCES.

CURRENT KLZK RADAR SHOWS SHOWERS AND THUNDERSTORMS SPREADING ACROSS
MUCH OF ARKANSAS. RAIN WILL CONTINUE ALL DAY ACROSS THE AREA. BEST
CHANCES OF RAIN WILL BE CENTRAL AND SOUTH. WITH ABUNDANT GULF
MOISTURE AVAILABLE...HEAVY RAINFALL WILL BE POSSIBLE THIS AFTERNOON
AND TONIGHT...MAINLY CENTRAL AND SOUTH. HAVE DECIDED TO INCREASE THE
AREAL EXTENT OF THE FLASH FLOOD WATCH...EXTENDED IT FURTHER NORTH.

WITH COLD FRONT ACROSS SOUTHERN ARKANSAS SOME SEVERE STORMS ARE
POSSIBLE ALONG THE FRONT. COLD FRONT WILL PULL OUT OF THE AREA ON
SUNDAY. PRECIP SHOULD END ACROSS THE AREA BY SUNDAY AFTERNOON. DRY
CONDITIONS ARE IN STORE FOR SUNDAY NIGHT THROUGH MONDAY NIGHT. THE
NEXT FRONT COMES THROUGH ON TUESDAY AND BRINGS THE NEXT QUICK CHANCE
OF THUNDERSTORMS. WEDNESDAY THROUGH FRIDAY WILL BE DRY.

TEMPERATURES WILL BE STEADY OR SLOWLY FALLING TODAY. STAYED CLOSE TO
THE FWC GUIDANCE.

.LZK...FLASH FLOOD WATCH FOR TODAY AND TONIGHT FOR CENTRAL AND SOUTH
ZONES ARZ016-025-032>034-043>047-021-022-030-031-037>042-23-024-052
053-062-066-067-054-055-056-057-064-065-063-068-069.

In the hours before

Local storm report, Mar 29, 11:13 PM CST, 5 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1113 PM CST FRI MAR 29 2002

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1010 PM    4 S DE WITT               AR   FLOOD
03/29/02   ARKANSAS                       REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.
                                          WATER STARTING TO COVER
                                          HIGHWAY 152

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 8:22 PM CST	Severe Thunderstorm Warning	LZK	Arkansas	38 min
Mar 29, 8:31 PM CST	Severe Thunderstorm Warning	LZK	Grant	29 min
Mar 29, 8:36 PM CST	Severe Thunderstorm Warning	LZK	Jefferson	24 min
Mar 29, 8:54 PM CST	Severe Thunderstorm Warning	LZK	Pulaski, Saline	51 min
Mar 29, 9:02 PM CST	Severe Thunderstorm Warning	LZK	Arkansas, Monroe	28 min
Mar 29, 9:34 PM CST	Severe Thunderstorm Warning	LZK	Arkansas	26 min
Mar 29, 10:09 PM CST	Severe Thunderstorm Warning	LZK	Arkansas	51 min
Mar 29, 10:17 PM CST	Flash Flood Warning	LZK	Arkansas	3 hr
Mar 29, 11:47 PM CST	Severe Thunderstorm Warning	LZK	Arkansas	28 min
Mar 30, 3:38 AM CST	Severe Thunderstorm Warning	LZK	Clark, Hot Spring	22 min
Mar 30, 4:13 AM CST	Severe Thunderstorm Warning	LZK	Hot Spring	32 min
Mar 30, 5:05 AM CST	Severe Thunderstorm Warning	LZK	Arkansas	40 min
Mar 30, 5:45 AM CST	Severe Thunderstorm Warning	LZK	Arkansas, Monroe	35 min
Mar 30, 6:27 AM CST	Flash Flood Warning	LZK	Clark, Grant, Hot Spring, Pike	3 hr
Mar 30, 7:08 AM CST	Flash Flood Warning	LZK	Arkansas, Jefferson	2 hr
Mar 30, 10:12 AM CST	Severe Thunderstorm Warning	LZK	Calhoun	28 min
Mar 30, 10:36 AM CST	Severe Thunderstorm Warning	LZK	Bradley	29 min
Mar 30, 10:59 AM CST	Severe Thunderstorm Warning	LZK	Drew	31 min
Mar 30, 11:24 AM CST	Severe Thunderstorm Warning	LZK	Desha	31 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.