Alert archive / Arkansas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 394, NWS Little Rock, AR

August 22, 2000Independence County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 22, 2000, 3:47 PM CDT for Independence 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: Aug 22, 2000, 3:47 PM CDT (20:47 UTC)
Expired: Aug 22, 2000, 4:15 PM CDT
In force: 28 min
Issued by: NWS Little Rock, AR
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Independence County, AR

The radar

The Little Rock radar (KLZK), 119 km from the middle of the area, began a volume at 20:48 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

Springfield, MO (KSGF), launched 12:00Z, 8.8 hours before the alert went out and 238 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: 536 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 1907 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Aug 22, 3:20 PM CDT, 27 minutes earlier.

Area forecast discussion, Aug 22, 3:20 PM CDT, 27 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
320 PM CDT TUE AUG 22 2000

...MAIN PROBLEM TODAY IS CHANCE OF PRECIPITATION IN UPCOMING DAYS
AND HOW HOT IT WILL ACTUALLY GET...

AS UPPER HIGH CONTINUES TO DOMINATE THE SOUTHERN PLAINS...HOT
WEATHER WILL CONTINUE ACROSS ARKANSAS. ETA AND AVN SHOW PLENTY OF
MOISTURE...AROUND 60 PERCENT RELATIVE HUMIDITY...CONTINUING THROUGH
THURSDAY ACROSS ARKANSAS. INCLUDED AFTERNOON THUNDERSHOWERS FOR
WEDNESDAY AND THURSDAY DUE TO THE HEAT AND AVAILABLE MOISTURE.
THUNDERSHOWERS DEVELOPING NOW ACROSS THE AREA...SO HAVE INCLUDED FOR
THIS EVENING...BUT THESE SHOULD DIE OFF BY DARK.

TEMPERATURES WILL REACH NEAR RECORD PROPORTIONS WEDNESDAY AND
THURSDAY CENTRAL AND SOUTH. MODELS STILL A BIT COOL ON THE
TEMPERATURES. WENT ABOUT 5 DEGREES ABOVE MOS IN MOST AREAS.

WEDNESDAY AND THURSDAY...WITH NEAR RECORD HEAT AND A BIT HIGHER
RELATIVE HUMIDITIES...WILL REACH HEAT INDICES OF AROUND 110 DEGREES CENTRAL
AND SOUTH. SHOULD REACH 100 TO 105 DEGREES IN THE NORTH.

51

.LIT...HEAT ADVISORY CENTRAL AND SOUTH WEDNESDAY THROUGH THURSDAY.
       AR ZONES 022-031-032-039-043>047-055>057-063>065-069
                021-030-037-038-040>042-052>054-062-066>068

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 2:36 PM CDT	Severe Thunderstorm Warning	LZK	Perry	39 min
Aug 22, 3:24 PM CDT	Severe Thunderstorm Warning	LZK	Sharp	36 min
Aug 22, 3:59 PM CDT	Severe Thunderstorm Warning	LZK	Lincoln	31 min
Aug 22, 4:02 PM CDT	Severe Thunderstorm Warning	LZK	Logan	28 min
Aug 22, 4:34 PM CDT	Severe Thunderstorm Warning	LZK	Boone	26 min
Aug 22, 5:12 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion	33 min
Aug 22, 6:08 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, White	27 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2000 Every severe thunderstorm warning in 2000

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.