Alert archive / Arkansas / Tornado Watches in 1998

Tornado Watch 222

April 16, 199837 counties in Arkansas; Dunklin County, Pemiscot County, Missouri; 11 counties in Tennessee

The Storm Prediction Center issued this tornado watch at Apr 16, 1998, 12:00 AM CDT for 37 counties in Arkansas; Dunklin County, Pemiscot County, Missouri; 11 counties in Tennessee. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 16, 1998, 12:00 AM CDT (05:00 UTC)
Expired
Apr 16, 1998, 5:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 50 counties

Arkansas County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Montgomery County, AR, Perry County, AR, Phillips County, AR, Pike County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Dunklin County, MO, Pemiscot County, MO, Crockett County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Little Rock radar (KLZK), 39 km from the middle of the area, began a volume at 05:00 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 16, 12:03 AM CDTSevere Thunderstorm WarningMEGLawrence47 min
Apr 16, 12:09 AM CDTSevere Thunderstorm WarningLZKIndependence66 min
Apr 16, 12:58 AM CDTSevere Thunderstorm WarningLZKJackson47 min
Apr 16, 2:16 AM CDTTornado WarningMEGGreene29 min
Apr 16, 2:28 AM CDTSevere Thunderstorm WarningMEGLake, Obion47 min
Apr 16, 2:36 AM CDTSevere Thunderstorm WarningMEGCraighead, Mississippi49 min
Apr 16, 2:42 AM CDTTornado WarningMEGMississippi33 min
Apr 16, 3:15 AM CDTTornado WarningMEGMississippi20 min
Apr 16, 3:35 AM CDTTornado WarningMEGDyer35 min
Apr 16, 3:56 AM CDTSevere Thunderstorm WarningMEGLauderdale34 min
Apr 16, 4:07 AM CDTSevere Thunderstorm WarningMEGCrockett33 min
Apr 16, 4:14 AM CDTTornado WarningMEGCrockett31 min
Apr 16, 4:29 AM CDTSevere Thunderstorm WarningMEGGibson31 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 5.0 hours before the alert went out and 187 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1219 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
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
1219 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
868 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.7
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 16, 12:15 AM CDTSevere Thunderstorm WatchSPCLittle River, Miller, Polk, Sevier6 hr
Apr 16, 7:30 AM CDTSevere Thunderstorm WatchSPCCleburne, Conway, Craighead, Crittenden, Cross, Faulkner and 20 more6 hr
Apr 16, 10:00 AM CDTTornado WatchSPCCraighead, Crittenden, Cross, Lee, Mississippi, Phillips and 2 more6 hr
Apr 16, 4:00 PM CDTTornado WatchSPCAshley, Chicot6 hr
Apr 15, 7:00 PM CDTTornado WatchSPCCallaway, Camden, Carter, Christian, Cole, Crawford and 28 more4 hr
Apr 15, 11:00 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Madison, Mississippi, New Madrid and 6 more5 hr
Apr 16, 4:30 AM CDTTornado WatchSPCBedford, Benton, Carroll, Cheatham, Chester, Crockett and 34 more6 hr
Apr 16, 7:00 AM CDTTornado WatchSPCAnderson, Bedford, Bledsoe, Blount, Bradley, Campbell and 35 more6 hr
Apr 16, 1:00 PM CDTTornado WatchSPCAnderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 36 more6 hr
Apr 16, 1:45 PM CDTTornado WatchSPCRobertson6 hr
Apr 16, 4:00 PM CDTTornado WatchSPCAnderson, Bedford, Benton, Bledsoe, Blount, Bradley and 78 more6 hr

Nearby

Tornado Watches in Arkansas, 1998Tornado Watches in Tennessee, 1998Tornado Watches in Missouri, 1998Every tornado watch in 1998

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.