Heavy Rainfall to Continue Through Tonight in Central Texas; Heat in the East, Interior Northwest, and Southwest

Isolated heavy rainfall will continue through tonight across portions of central Texas, though some relief from the heavy rain is expected on Tuesday. Heat and humidity will remain in place across the Eastern U.S. and interior Northwest U.S. over the next few days with widespread moderate to major Heat Risk. Dangerous heat will build into the Desert Southwest Tuesday through Thursday. Read More >

Overview

Thunderstorms developed in arced bands during the warmth of the afternoon ahead of a strong low in the upper levels of the atmosphere. Several storms attained severe intensity, primarily over western Kentucky. The primary severe weather hazard was damaging winds, however there was a "landspout" tornado in southeast Missouri. A "landspout" tornado refers to a tornado spawned by a non-supercell thunderstorm. It usually occurs during the intense updraft stage of a developing shower or thunderstorm. It is typically not as long-lived or as strong as a supercell tornado, but it can be very impressive-looking.

Radar
Storm Reports
Environment

Radar:

Radar loop for afternoon and evening of June 21...

Click here for a radar loop of this event

Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PADUCAH KY
723 PM CDT THU JUN 21 2018

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

0150 PM TSTM WND GST CARTERVILLE 37.76N 89.08W
06/21/2018 E50.00 MPH WILLIAMSON IL TRAINED SPOTTER

WIND GUSTS ESTIMATED 45 TO 50 MPH

0227 PM TSTM WND GST 2 WNW MARION 37.74N 88.98W
06/21/2018 M50.00 MPH WILLIAMSON IL TRAINED SPOTTER

MEASURED NORTHWEST OF TOWN.

0248 PM FUNNEL CLOUD SCOTT CITY 37.22N 89.53W
06/21/2018 SCOTT MO FIRE DEPT/RESCUE

BRIEF FUNNEL CLOUD.

0255 PM TSTM WND GST HARRISBURG 37.74N 88.55W
06/21/2018 E45.00 MPH SALINE IL TRAINED SPOTTER

WIND GUSTS ESTIMATED 45 MPH AND PEA SIZE HAIL REPORTED
WITH THIS STORM.

0335 PM TSTM WND GST MOUND CITY 37.09N 89.16W
06/21/2018 M55.00 MPH PULASKI IL EMERGENCY MNGR

0401 PM TSTM WND GST LA CENTER 37.07N 88.97W
06/21/2018 M50.00 MPH BALLARD KY EMERGENCY MNGR

0445 PM TSTM WND GST MAYFIELD 36.74N 88.65W
06/21/2018 E50.00 MPH GRAVES KY TRAINED SPOTTER

0510 PM TSTM WND GST CALVERT CITY 37.03N 88.35W
06/21/2018 M44.00 MPH MARSHALL KY NWS EMPLOYEE

MEASURED WIND GUST 44 MPH. PEA SIZE HAIL REPORTED WITH
THIS STORM. INTERMITTENT POWER OUTAGES. SEVERAL LARGE
TREE LIMBS DOWN ALONG LONE VALLEY ROAD.

0510 PM TSTM WND DMG BENTON 36.85N 88.36W
06/21/2018 MARSHALL KY TRAINED SPOTTER

TREE SNAPPED. REPORTED WITH PHOTO. WIND SPEED UNKNOWN.

0515 PM TSTM WND DMG 4 S CALVERT CITY 36.98N 88.35W
06/21/2018 MARSHALL KY NWS EMPLOYEE

LATE REPORT...MULTIPLE TREES DOWN IN KENTUCKY DAM VILLAGE
STATE PARK. TIME ESTIMATED.

0515 PM TSTM WND DMG PALMA 36.96N 88.38W
06/21/2018 MARSHALL KY FIRE DEPT/RESCUE

LATE REPORT...WIDESPREAD TREE DAMAGE ALONG SUN BRYANT
LANE. PORTABLE BUILDING MOVED OFF OF FOUNDATION. TIME
ESTIMATED.

0533 PM TSTM WND DMG BENTON 36.85N 88.36W
06/21/2018 MARSHALL KY BROADCAST MEDIA

REPORTED POWER OUTAGES ACROSS THE COUNTY. THIS IS FROM
THE STORMS THAT PASSED THROUGH SHORTLY AFTER 5 PM.

0600 PM HEAVY RAIN ROCKCASTLE 36.90N 87.99W
06/21/2018 M0.70 INCH TRIGG KY TRAINED SPOTTER

20 MINUTE ACCUMULATION

0607 PM TSTM WND GST 2 E CADIZ 36.87N 87.79W
06/21/2018 E65.00 MPH TRIGG KY TRAINED SPOTTER

WIND GUST ESTIMATED. BILLBOARD BLOWN OVER.

0627 PM TSTM WND GST HOPKINSVILLE 36.85N 87.49W
06/21/2018 E65.00 MPH CHRISTIAN KY TRAINED SPOTTER

WIND GUST ESTIMATED.

0634 PM TORNADO CANALOU 36.75N 89.69W
06/21/2018 NEW MADRID MO LAW ENFORCEMENT

TORNADO REPORTED BY STATE POLICE. TORNADO IS TOUCHING
DOWN AND LIFTING.

0650 PM FUNNEL CLOUD 2 W EAST PRAIRIE 36.78N 89.42W
06/21/2018 MISSISSIPPI MO TRAINED SPOTTER

Map of storm reports and warnings. Yellow polygons are Severe Thunderstorm Warnings and red polygons are Tornado
Warnings. Not all plotted reports are severe events.

Environment

Thunderstorms developed in a region of moderately strong winds aloft as sunshine warmed and destabilized the atmosphere during the day. Severe Thunderstorm Watch 196 was issued by the Storm Prediction Center around 1:30 P.M. The storms weakened by early evening as the atmosphere stabilized.


Figure 1: Svr Tstm Watch 196	Figure 2: 925 mb winds	Figure 3: 500 mb winds

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Heavy Rainfall to Continue Through Tonight in Central Texas; Heat in the East, Interior Northwest, and Southwest

Overview of the storms on Thursday, June 21 2018