Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 285, NWS Little Rock, AR

July 12, 2001Pope County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 12, 2001, 9:50 PM CDT for Pope County, Arkansas. It was in force for 25 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: Jul 12, 2001, 9:50 PM CDT (02:50 UTC)
Expired: Jul 12, 2001, 10:15 PM CDT
In force: 25 min
Issued by: NWS Little Rock, AR
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Pope County, AR

The radar

The Little Rock radar (KLZK), 98 km from the middle of the area, began a volume at 02:54 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 00:00Z, 2.8 hours before the alert went out and 175 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: 1014 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 907 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.8

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 Jul 12, 3:10 PM CDT, 6 hours 40 minutes earlier.

Area forecast discussion, Jul 12, 3:10 PM CDT, 6 hours 40 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
310 PM CDT THU JUL 12 2001

FORECAST CONCERNS: HEAVY RAIN POSSIBLE THIS EVENING AND SEVERE
WEATHER THREAT TONIGHT THROUGH FRIDAY MORNING.

INTERSECTING OUTFLOW BOUNDARIES FROM EARLIER THUNDERSTORMS
TRIGGERED THE DEVELOPMENT OF SCATTERED THUNDERSTORMS...SOME OF
WHICH BECAME SEVERE OVER LINCOLN AND LATER OVER DREW/DESHA COUNTIES.
THE LATEST MODEL RUNS ARE IN VERY GOOD AGREEMENT. THE MODEL OF
CHOICE IS AVN. TEMPERATURES WILL VARY WIDELY BETWEEN THE RAIN-COOLED
AREAS AND THOSE OTHER AREAS. THE HIGH PRESSURE WHICH MOVED WEST TO
ALLOW THIS SYSTEM TO DROP DOWN UPON US WILL BE MOVING BACK INTO
ARKANSAS BY MONDAY. TAHIS WILL BRING ABOUT A RETURN TO HIGH HEAT AND
HIGH HUMIDITY.

.LIT...NONE.

38

In the hours before

Special weather statement, Jul 12, 4:00 PM CDT, 5 hours 50 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
Jul 12, 9:33 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Lonoke, Pulaski	57 min
Jul 12, 9:33 PM CDT	Severe Thunderstorm Warning	LZK	Conway	57 min
Jul 12, 10:25 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke	50 min
Jul 12, 10:30 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Perry	60 min
Jul 12, 10:33 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski	57 min
Jul 12, 10:35 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Pope	55 min
Jul 12, 11:22 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski, Saline	53 min
Jul 12, 11:25 PM CDT	Severe Thunderstorm Warning	LZK	Jefferson, Lonoke	50 min
Jul 12, 11:50 PM CDT	Severe Thunderstorm Warning	LZK	Pope	35 min
Jul 12, 11:57 PM CDT	Severe Thunderstorm Warning	LZK	Grant	63 min
Jul 13, 12:15 AM CDT	Severe Thunderstorm Warning	LZK	Jefferson	50 min
Jul 13, 12:54 AM CDT	Severe Thunderstorm Warning	LZK	Perry	51 min
Jul 13, 2:25 AM CDT	Severe Thunderstorm Warning	LZK	Yell	45 min
Jul 13, 4:32 AM CDT	Severe Thunderstorm Warning	LZK	Pulaski	18 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001 Every severe thunderstorm warning in 2001

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.