Alert archive / Arkansas / Tornado Watches in 1998

Tornado Watch 318

May 9, 199865 counties in Arkansas; Bowie County, Cass County, Texas

The Storm Prediction Center issued this tornado watch at May 9, 1998, 12:00 PM CDT for 65 counties in Arkansas; Bowie County, Cass County, Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 9, 1998, 12:00 PM CDT (17:00 UTC)
Expired
May 9, 1998, 6:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 67 counties

Arkansas County, AR, Ashley County, AR, Baxter County, AR, Benton County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Carroll County, AR, Chicot County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lawrence County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Union County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Bowie County, TX, Cass County, TX

The radar

The Little Rock radar (KLZK), 36 km from the middle of the area, began a volume at 17:04 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

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

IssuedProductOfficeCountiesLasted
May 9, 12:26 PM CDTSevere Thunderstorm WarningTSABenton34 min
May 9, 1:10 PM CDTSevere Thunderstorm WarningTSAFranklin20 min
May 9, 1:24 PM CDTSevere Thunderstorm WarningTSAFranklin21 min
May 9, 1:36 PM CDTSevere Thunderstorm WarningLZKBoone34 min
May 9, 1:43 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan47 min
May 9, 2:20 PM CDTSevere Thunderstorm WarningLZKNewton50 min
May 9, 2:23 PM CDTSevere Thunderstorm WarningLZKPope32 min
May 9, 2:37 PM CDTSevere Thunderstorm WarningLZKBoone48 min
May 9, 2:55 PM CDTSevere Thunderstorm WarningLZKBaxter35 min
May 9, 4:16 PM CDTSevere Thunderstorm WarningLZKFulton, Izard49 min
May 9, 4:39 PM CDTSevere Thunderstorm WarningTSASebastian51 min
May 9, 4:58 PM CDTSevere Thunderstorm WarningLZKPike47 min
May 9, 4:59 PM CDTSevere Thunderstorm WarningLZKScott61 min
May 9, 5:05 PM CDTSevere Thunderstorm WarningLZKFulton, Izard, Sharp50 min
May 9, 5:21 PM CDTTornado WarningLZKScott64 min
May 9, 5:28 PM CDTSevere Thunderstorm WarningLZKSearcy47 min
May 9, 5:39 PM CDTSevere Thunderstorm WarningLZKClark66 min
May 9, 5:54 PM CDTSevere Thunderstorm WarningMEGLawrence, Randolph46 min
May 9, 5:59 PM CDTSevere Thunderstorm WarningLZKStone66 min
May 9, 6:00 PM CDTTornado WarningMEGRandolph50 min

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 5.0 hours before the alert went out and 228 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 12:00Z on 1998-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1998-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1496 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

IssuedProductOfficeCountiesLasted
May 9, 12:45 AM CDTTornado WatchSPCHempstead, Little River, Miller5 hr
May 9, 1:00 PM CDTTornado WatchSPCFulton, Randolph6 hr
May 9, 2:00 PM CDTTornado WatchSPCClay, Craighead, Crittenden, Cross, Greene, Lee and 5 more6 hr
May 9, 6:00 PM CDTTornado WatchSPCArkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 51 more5 hr
May 8, 8:00 PM CDTTornado WatchSPCArcher, Baylor, Callahan, Clay, Collin, Cooke and 25 more6 hr
May 8, 9:15 PM CDTTornado WatchSPCBell, Bosque, Brown, Burnet, Coleman, Comanche and 15 more5 hr
May 8, 10:30 PM CDTSevere Thunderstorm WatchSPCFoard, Hardeman, Wichita, Wilbarger5 hr

Nearby

Tornado Watches in Arkansas, 1998Tornado Watches in Texas, 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.