Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 21, NWS Quad Cities, IA

April 10, 1995Mercer County, Rock Island County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 10, 1995, 11:47 AM CDT for Mercer County, Rock Island County, Illinois. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 10, 1995, 11:47 AM CDT (16:47 UTC)
Expired
Apr 10, 1995, 12:45 PM CDT
In force
58 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

Counties Mercer County, IL, Rock Island County, IL

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 4.8 hours before the alert went out and 34 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 12:00Z 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 12:00Z on 1995-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 square meters per square second.193958Sfc1 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
570 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
396 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLI 101648 RRA
SVRMLI
ILC131-161-101745-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1147 AM CDT MON APR 10 1995
 
THE NATIONAL WEATHER SERVICE IN QUAD CITIES IA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST ILLINOIS
 
   ...MERCER COUNTY...ROCK ISLAND COUNTY
 
AT 1146 AM CDT...RADAR SHOWED A SEVERE THUNDERSTORM NEAR MILLERSBURG
MOVING NORTHEAST AT 35 MILES AN HOUR. IT WILL BE NEAR HAMLET BY 1155 AM
CDT. THIS STORM WILL LIKELY PRODUCE LARGE HAIL UP TO 1 INCH IN DIAMETER
AND POSSIBLE STRONG WINDS. IT WILL BE NEAR MILAN AT 1205 PM.
 
GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS!  A
TORNADO WATCH IS IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
 
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, 12:08 AM CDTSevere Thunderstorm WarningDVNHenry, Mercer52 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

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.