Alert archive / Arkansas / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 248

May 18, 200130 counties in Arkansas; Bowie County, Cass County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 18, 2001, 8:00 PM CDT for 30 counties in Arkansas; Bowie County, Cass County, Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 18, 2001, 8:00 PM CDT (01:00 UTC)
Expired: May 19, 2001, 1:00 AM CDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 32 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Polk County, AR, Saline County, AR, Sevier County, AR, Union County, AR, Bowie County, TX, Cass County, TX

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 18, 8:02 PM CDT	Severe Thunderstorm Warning	LZK	Jefferson	38 min
May 18, 8:10 PM CDT	Severe Thunderstorm Warning	LZK	Pike	30 min
May 18, 8:31 PM CDT	Severe Thunderstorm Warning	SHV	Nevada	59 min
May 18, 8:57 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland	33 min
May 18, 9:42 PM CDT	Severe Thunderstorm Warning	LZK	Ouachita	48 min
May 18, 9:55 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun	50 min
May 18, 10:42 PM CDT	Severe Thunderstorm Warning	LZK	Bradley	48 min
May 18, 10:45 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun	20 min
May 18, 11:25 PM CDT	Severe Thunderstorm Warning	JAN	Ashley	50 min
May 19, 12:15 AM CDT	Severe Thunderstorm Warning	JAN	Ashley, Chicot	45 min
May 19, 12:27 AM CDT	Severe Thunderstorm Warning	LZK	Bradley	48 min

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.0 hours before the alert went out and 183 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: 1422 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.9

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.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 19, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more	5 hr
May 19, 3:30 PM CDT	Tornado Watch	SPC	Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 22 more	7 hr
May 19, 4:45 PM CDT	Tornado Watch	SPC	Archer, Baylor, Clay, Cooke, Denton, Foard and 10 more	5 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2001 Severe Thunderstorm Watches in Texas, 2001 Every severe thunderstorm watch 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.