Alert archive / Illinois / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 37, NWS Paducah, KY

May 2, 2019Alexander County, Union County, Illinois; Cape Girardeau County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at May 2, 2019, 5:02 AM CDT for Alexander County, Union County, Illinois; Cape Girardeau County, Missouri. It was in force for 17 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
May 2, 2019, 5:02 AM CDT (10:02 UTC)
Expired
May 2, 2019, 5:19 AM CDT
In force
17 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alexander County, IL, Union County, IL, Cape Girardeau County, MO

The radar

The Paducah radar (KPAH), 66 km from the middle of the area, began a volume at 10:05 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, 10.0 hours before the alert went out and 320 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 2019-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 joules per kilogram.LCLLFCEL10008507005003002001001 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 2019-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
33 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
936 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 May 2, 2:56 AM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, May 2, 2:56 AM CDT, 2 hours 6 minutes before
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Hazardous weather outlook, May 2, 3:32 AM CDT, 1 hour 30 minutes before
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In the hours before

Special weather statement, May 2, 1:22 AM CDT, 3 hours 40 minutes before
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Special weather statement, May 2, 2:02 AM CDT, 3 hours before
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Special weather statement, May 2, 3:30 AM CDT, 1 hour 32 minutes before
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Special weather statement, May 2, 4:02 AM CDT, 1 hour before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 1:29 AM CDTDense Fog AdvisoryPAHDaviess, Henderson, Hopkins, McLean, Muhlenberg, Union and 1 more6 hr
May 2, 10:49 AM CDTFlash Flood WatchPAHBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more21 hr
May 2, 5:52 PM CDTSpecial Weather StatementPAHMuhlenberg38 min
May 2, 6:38 PM CDTSpecial Weather StatementPAHMuhlenberg52 min
May 2, 6:47 PM CDTAreal Flood AdvisoryPAHCarlisle, Fulton, Hickman3 hr
May 2, 10:21 AM CDTRiver Flood WarningPAHFranklin, Williamson9 days
May 1, 9:30 PM CDTRiver Flood WarningPAHRipley46 hr
May 2, 1:22 AM CDTSpecial Weather StatementPAHCarter38 min
May 2, 2:02 AM CDTSpecial Weather StatementPAHCarter43 min
May 2, 2:08 AM CDTSevere Thunderstorm WarningPAHCarter37 min
May 2, 3:02 AM CDTAreal Flood AdvisoryPAHCarter118 min
May 2, 3:30 AM CDTSpecial Weather StatementPAHButler30 min
May 2, 4:02 AM CDTSpecial Weather StatementPAHBollinger, Stoddard, Wayne43 min
May 2, 6:02 AM CDTAreal Flood AdvisoryPAHButler, Stoddard, Wayne3 hr
May 2, 9:32 AM CDTRiver Flood WarningPAHWayne34 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2019Severe Thunderstorm Warnings in Missouri, 2019Every severe thunderstorm warning in 2019

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.