Alert archive / Illinois / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 72, NWS Paducah, KY

April 22, 1996Franklin County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Apr 22, 1996, 3:26 AM CDT for Franklin County, Illinois. It was in force for 34 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 22, 1996, 3:26 AM CDT (08:26 UTC)
Expired
Apr 22, 1996, 4:00 AM CDT
In force
34 min
Issued by
NWS Paducah, KY
Area
Whole counties

County Franklin County, IL

The radar

The Paducah radar (KPAH), 104 km from the middle of the area, began a volume at 08:26 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

Lincoln, IL (KILX), launched 00:00Z, 8.4 hours before the alert went out and 242 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, Lincoln, IL at 00:00Z on 1996-04-22Temperature 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, Lincoln, IL at 00:00Z on 1996-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
2648 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
419 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.

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 Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 22, 2:00 AM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Apr 22, 2:00 AM CDT, 1 hour 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
200 AM CDT MON APR 22 1996

CONDITIONS STILL RIPE FOR SVR WX OVER SE MO INTO THIS MORNING.
KPAH 88D VAD WIND PROFILE SHOWED 45 KT AT 2 THSND FEET INCRSG TO
60 KT AT 4 THSND FEET. 00Z UPR AIR ANALYSIS SHOWED H5 SHORTWAVE
TROF LIFTING NEWD THRU OKLAHOMA...WITH 60 TO 70 KT WIND MAX IN
OUN/SGF REGION. MID LVL SHORTWAVE IS FCST TO SHEAR APART AS IT
REACHES THE OHIO VALLEY TODAY. IN ADDITION...BUOYANCY AND MOISTURE
WILL BE LESS IMPRESSIVE ACRS OHIO VALLEY. THEREFORE...THE SVR THREAT
SHOULD DIMINISH WITH TIME TODAY. STILL SOME POTENTIAL FOR TORNADIC
SUPERCELLS OVR SE MO THRU THE EARLY MORNING HOURS.

COLD FRONT IS FCST TO REACH PAH/CGI AREAS AROUND 00Z. A SECOND MORE
SIGNIFICANT H5 SHORTWAVE IS FCST TO DIG INTO THE BASE OF THE TROF
OVER OK THIS EVENING...CREATING STG UPWARD VERTICAL MOTION ALONG
THE COLD FRONT TONIGHT. THIS WILL LIKELY RESULT IN A PERIOD OF
MDT TO HVY RAINS DURING THE NIGHT. WILL HAVE TO KEEP AN EYE ON FLASH
FLOOD POTENTIAL...ESPECIALLY IF THIS MORNINGS STORMS PRODUCE HVY RAIN.
SPC QPF GUIDANCE OF 2 TO 3 INCHES SOUTH OF THE OHIO RIVER LOOKS QUITE
PSBL.

THERE COULD BE A BREAK IN THE PCPN THIS AFTN BETWEEN SHORTWAVES. THIS
COULD ALLOW SOME AFTN BINOVC...ALLOWING TEMPS TO RISE WELL INTO 70S.
CAA BEHIND FRONT TONIGHT SHOULD BE SIGNIFICANT. NGM BRINGS H8 0 ISOTHERM
TO NEAR STL BY 12Z TUESDAY. ETA IS NOT AS COLD.

AREA            HIGHS          LOWS          POPS
WRN KY          74              50            +/+
SE MO           75              47            +/+
SRN IL          72              47            +/+
SW IN           72              50            +/+

MY

In the hours before

Special weather statement, Apr 22, 12:25 AM CDT, 3 hours 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:17 PM CDTSevere Thunderstorm WarningPAHHamilton, Wayne58 min
Apr 22, 2:04 AM CDTSevere Thunderstorm WarningPAHPerry41 min
Apr 22, 7:15 AM CDTFlash Flood WarningPAHBollinger4 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 1996Every severe thunderstorm warning in 1996

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.