Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Quad Cities, IA

April 10, 1995Henry County, Mercer County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 10, 1995, 12:08 AM CDT for Henry County, Mercer County, Illinois. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Apr 10, 1995, 12:08 AM CDT (05:08 UTC)
Expired
Apr 10, 1995, 1:00 AM CDT
In force
52 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

Counties Henry County, IL, Mercer County, IL

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 5.1 hours before the alert went out and 38 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, Davenport, at 00:00Z on 1995-04-10Temperature 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, Davenport, at 00:00Z on 1995-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 square meters per square second.19395878Sfc1 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
1534 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
622 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLI 100509 RRA
SVRMLI
ILC073-131-100600-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1208 AM CDT MON APR 10 1995
 
THE NATIONAL WEATHER SERVICE IN QUAD CITIES IA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  100 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ILLINOIS
 
   ...SOUTHERN HENRY IL COUNTY...SOUTHEASTERN MERCER COUNTY
 
AT 1207 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES
WEST SOUTHWEST OF WOODHULL MOVING NORTHEAST AT 30 MILES AN HOUR. IT WILL
PASS WOODHULL BY 1220 AM AND THEN JUST SOUTH OF CAMBRIDGE BY 1240 AM.
THIS STORM WILL LIKELY PRODUCE GOLF BALL SIZE HAIL.
 
THIS STORM HAS A HITSTORY OF LARGE HAIL.  STAY INDOORS AWAY
FROM WINDOWS!
 
HELGESON

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 9, 10:32 PM CDTSevere Thunderstorm WarningDVNMcDonough43 min
Apr 9, 10:52 PM CDTSevere Thunderstorm WarningDVNHancock68 min
Apr 9, 11:32 PM CDTSevere Thunderstorm WarningDVNHenderson, McDonough, Warren43 min
Apr 9, 11:51 PM CDTSevere Thunderstorm WarningDVNHancock54 min
Apr 10, 12:45 AM CDTSevere Thunderstorm WarningDVNHancock, McDonough60 min
Apr 10, 1:42 AM CDTSevere Thunderstorm WarningDVNWhiteside33 min
Apr 10, 2:04 AM CDTSevere Thunderstorm WarningDVNMcDonough41 min
Apr 10, 2:26 AM CDTSevere Thunderstorm WarningDVNHancock49 min
Apr 10, 3:27 AM CDTSevere Thunderstorm WarningDVNMcDonough48 min
Apr 10, 11:47 AM CDTSevere Thunderstorm WarningDVNMercer, Rock Island58 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1995Every severe thunderstorm warning in 1995

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.