Alert archive / Illinois / Special Weather Statements in 2021

Special Weather Statement, NWS Paducah, KY

May 6, 2021Pope County, Illinois

NWS Paducah, KY issued this special weather statement at May 6, 2021, 6:12 PM CDT for Pope County, Illinois. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 6, 2021, 6:12 PM CDT (23:12 UTC)
Expired
May 6, 2021, 6:45 PM CDT
In force
33 min
Issued by
NWS Paducah, KY

County Pope County, IL

The radar

The Paducah radar (KPAH), 49 km from the middle of the area, began a volume at 23:12 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

Nashville Metro, TN (KBNA), launched 12:00Z, 11.2 hours before the alert went out and 216 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, Nashville Metro, TN at 12:00Z on 2021-05-06Temperature 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, Nashville Metro, TN at 12:00Z on 2021-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -90 square meters per square second.1939587897117136Sfc1 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
1719 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
-90 m²/s²
0-3 km storm-relative helicity
-71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 6, 2:10 PM CDT, 4 hours 2 minutes earlier.

Area forecast discussion, May 6, 2:10 PM CDT, 4 hours 2 minutes before
Area Forecast Discussion
National Weather Service Paducah KY
210 PM CDT Thu May 6 2021

.SHORT TERM...(Tonight through Friday night)
Issued at 200 PM CDT Thu May 6 2021

Approaching cold front now on doorstep of FA, setting off active
convection, strong-severe, across FA along/ahead of its approach.
There will continue to be a marginal to slight risk of severe as
the front approaches, with low topped supercells possible. With
freezing level near -8C and -20C level roughly 10K higher, large
hail also possible along with damaging wind gusts. Should be
short-lived during peak heating/tied to front.

Afterward, drier dew points sweep in, with potentially some 30s
dew points forecast thru tmrw. These will begin moderating again
by tmrw night as a warm frontal boundary returns to the area,
bringing the next chance of rain.

.LONG TERM...(Saturday through Thursday)
Issued at 200 PM CDT Thu May 6 2021

The wet weekend signal is still there, but storm total qpf amounts
appear to be improving, as the heaviest qpf axis shifts north and
west of the FA. Still, with the warm front's lift across the area
Saturday, then warm sectoring Saturday night, ahead of the
approaching cold front Sunday (passage Sunday night), anticipate
gradual re-moistening/destabilizing environ with high pops
returning, including thunder chances. By the end of the weekend,
storm total average qpf in the 1 to 2 inch range seems likely.

Behind the cold fropa, a cooler than climo norm airmass settles
across the FA next week. 60s for highs and 40s for lows can be
expected each day. While spotty rain chances cannot be completely
ruled out any day, an early week drier, versus mid week wetter,
approach appears the most likely scenario given the synoptic scale
evolution from quasi zonal (early) to more amplified troffing
(mid-late) week.

&&

.AVIATION...
Issued at 200 PM CDT Thu May 6 2021

Lower bases/cigs and potential thunderstorms with vsby
restrictions are anticipated at terminals, at least in vicinity
fashion if not categorical, thru late pm hours. A cold front's
passage will then end restrictions associated with frontal
convection, and improve skies overnight. Winds will shift to gusty
northwest behind the front, then wane as higher pressure moves
in/takes over, returning all Visual Flight Rules for the latter
half of the flight forecast package.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...None.
MO...None.
IN...None.
KY...None.

&&
Hazardous weather outlook, May 6, 5:50 PM CDT, 22 minutes before
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In the hours before

Special weather statement, May 6, 4:31 PM CDT, 1 hour 41 minutes before
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Local storm report, May 6, 4:46 PM CDT, 1 hour 26 minutes before
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Special weather statement, May 6, 5:18 PM CDT, 54 minutes before
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Local storm report, May 6, 5:29 PM CDT, 43 minutes before
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Local storm report, May 6, 5:53 PM CDT, 19 minutes before
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Special weather statement, May 6, 6:12 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 2:05 PM CDTSpecial Weather StatementPAHHenderson40 min
May 6, 2:41 PM CDTSpecial Weather StatementPAHHenderson, Union49 min
May 6, 2:56 PM CDTSpecial Weather StatementPAHCalloway, Graves, Marshall49 min
May 6, 3:14 PM CDTSpecial Weather StatementPAHCaldwell, Hopkins, McLean, Muhlenberg, Webster46 min
May 6, 3:22 PM CDTSevere Thunderstorm WarningPAHCalloway38 min
May 6, 3:53 PM CDTSevere Thunderstorm WarningPAHChristian, Todd52 min
May 6, 6:32 PM CDTSpecial Weather StatementPAHCrittenden, Webster28 min
May 6, 6:47 PM CDTSpecial Weather StatementPAHLivingston, McCracken43 min
May 6, 12:26 PM CDTSpecial Weather StatementPAHJackson, Jefferson, Perry49 min
May 6, 1:13 PM CDTSevere Thunderstorm WarningPAHAlexander47 min
May 6, 3:40 PM CDTSpecial Weather StatementPAHJefferson50 min
May 6, 3:52 PM CDTSevere Thunderstorm WarningPAHJefferson, Wayne38 min
May 6, 4:31 PM CDTSpecial Weather StatementPAHFranklin, Hamilton, Wayne44 min
May 6, 4:54 PM CDTTornado WarningPAHWayne36 min
May 6, 5:18 PM CDTSpecial Weather StatementPAHGallatin, Johnson, Saline, Union, Williamson42 min
May 6, 5:27 PM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline, Williamson38 min
May 6, 5:57 PM CDTSevere Thunderstorm WarningPAHJohnson, Massac33 min
May 6, 11:47 AM CDTSpecial Weather StatementPAHBollinger, Butler, Ripley, Wayne58 min
May 6, 12:42 PM CDTSpecial Weather StatementPAHBollinger, Butler, Carter, Ripley, Wayne48 min
May 6, 12:53 PM CDTSevere Thunderstorm WarningPAHBollinger, Butler, Carter, Ripley, Stoddard, Wayne37 min
May 6, 1:24 PM CDTTornado Warning Tornado observedPAHCape Girardeau, Scott31 min
May 6, 3:29 PM CDTSpecial Weather StatementPAHSpencer46 min

Nearby

Special Weather Statements in Illinois, 2021Every special weather statement in 2021

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.