Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 39, NWS Paducah, KY

April 15, 1998Cape Girardeau County, Missouri

NWS Paducah, KY issued this tornado warning at Apr 15, 1998, 11:55 PM CDT for Cape Girardeau County, Missouri. It was in force for 35 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
Apr 15, 1998, 11:55 PM CDT (04:55 UTC)
Expired
Apr 16, 1998, 12:30 AM CDT
In force
35 min
Issued by
NWS Paducah, KY
Area
Whole counties

County Cape Girardeau County, MO

The radar

The Paducah radar (KPAH), 88 km from the middle of the area, began a volume at 04:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 15, 11:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.9 hours before the alert went out and 285 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

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

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 8:03 PM CDTSevere Thunderstorm WarningPAHPerry57 min
Apr 15, 8:34 PM CDTTornado WarningPAHPerry56 min
Apr 15, 8:35 PM CDTFlash Flood WarningPAHPerry3 hr
Apr 15, 9:01 PM CDTTornado WarningPAHBollinger49 min
Apr 15, 9:01 PM CDTTornado WarningPAHBollinger44 min
Apr 15, 9:36 PM CDTTornado WarningPAHPerry49 min
Apr 15, 11:30 PM CDTFlash Flood WarningPAHBollinger, Perry3 hr
Apr 15, 11:55 PM CDTTornado WarningPAHCape Girardeau40 min
Apr 16, 12:17 AM CDTFlash Flood WarningPAHCape Girardeau3 hr
Apr 16, 7:08 AM CDTSevere Thunderstorm WarningPAHButler37 min
Apr 16, 7:39 AM CDTSevere Thunderstorm WarningPAHNew Madrid36 min

Nearby

Tornado Warnings in Missouri, 1998Every tornado warning in 1998Tornadoes 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.