Alert archive / Kentucky / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 17, NWS Paducah, KY

March 17, 2018Calloway County, Marshall County, Kentucky

NWS Paducah, KY issued this severe thunderstorm warning at Mar 17, 2018, 12:41 AM CDT for Calloway County, Marshall County, Kentucky. It was in force for 22 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: Mar 17, 2018, 12:41 AM CDT (05:41 UTC)
Expired: Mar 17, 2018, 1:03 AM CDT
In force: 22 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Calloway County, KY, Marshall County, KY

The radar

The Paducah radar (KPAH), 55 km from the middle of the area, began a volume at 05:43 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

Little Rock, AR (KBYH), launched 00:00Z, 5.7 hours before the alert went out and 260 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 754 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1172 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 307 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 9.1

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 Mar 17, 12:41 AM CDT, 0 minutes earlier.

Area forecast discussion, Mar 17, 12:41 AM CDT, 0 minutes before

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Hazardous weather outlook, Mar 16, 2:15 PM CDT, 10 hours 26 minutes before

Hazardous Weather Outlook
National Weather Service Paducah KY
215 PM CDT Fri Mar 16 2018

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-171000-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope-
Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh-
Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves-
Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell-
Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean-
Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter-
Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid-
215 PM CDT Fri Mar 16 2018

This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.

.DAY ONE...This Afternoon and Tonight

A slight chance of thunderstorms will accompany a warm front's
passage across the area tonight. Severe storms are not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A chance of thunderstorms is forecast Monday. It appears the best
chance will be over western Kentucky, where severe storms cannot
be ruled out at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter should stay abreast of the latest forecasts and updates
for potential activation chances.

In the hours before

Local storm report, Mar 16, 11:52 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
1152 PM CDT FRI MAR 16 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1150 PM     HAIL             CAIRO                   37.00N 89.18W
03/16/2018  M0.25 INCH       ALEXANDER          IL   EMERGENCY MNGR

&&

ALR

Local storm report, Mar 17, 12:06 AM CDT, 35 minutes before

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Local storm report, Mar 17, 12:09 AM CDT, 32 minutes before

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Special weather statement, Mar 17, 12:25 AM CDT, 16 minutes before

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Local storm report, Mar 17, 12:36 AM CDT, 5 minutes before

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Local storm report, Mar 17, 12:40 AM CDT, 1 minute before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 16, 11:18 PM CDT	Severe Thunderstorm Warning	PAH	Ballard	27 min
Mar 16, 11:43 PM CDT	Severe Thunderstorm Warning	PAH	Ballard, Carlisle	33 min
Mar 17, 12:09 AM CDT	Severe Thunderstorm Warning	PAH	Graves, McCracken	36 min
Mar 17, 12:25 AM CDT	Special Weather Statement	PAH	Fulton, Hickman	35 min
Mar 17, 12:47 AM CDT	Severe Thunderstorm Warning	PAH	Fulton, Hickman	43 min
Mar 17, 1:20 AM CDT	Special Weather Statement	PAH	Calloway, Trigg	40 min
Mar 17, 1:55 AM CDT	Special Weather Statement	PAH	Trigg	50 min
Mar 16, 9:28 PM CDT	Special Weather Statement	PAH	Wayne	47 min
Mar 16, 9:54 PM CDT	Special Weather Statement	PAH	Carter	21 min
Mar 16, 10:08 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Wayne	22 min
Mar 16, 10:14 PM CDT	Special Weather Statement	PAH	Stoddard	31 min
Mar 16, 10:45 PM CDT	Severe Thunderstorm Warning	PAH	Scott, Stoddard	45 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2018 Every severe thunderstorm warning in 2018

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.