Tornado Watch 46

Issued

Feb 28, 2017, 8:29 PM CST (02:29 UTC)

Expired

Mar 1, 2017, 8:00 AM CST

In force

12 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Paducah radar (KPAH), 29 km from the middle of the area, began a volume at 02:32 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.

Two or more tornadoes

70%

One or more EF2 to EF5 tornadoes

50%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 221Feb 28, 5:28 PM CST
• Mesoscale Discussion 224Feb 28, 7:46 PM CST
• Mesoscale Discussion 228Feb 28, 10:03 PM CST
• Mesoscale Discussion 229Feb 28, 10:09 PM CST
• Mesoscale Discussion 235Mar 1, 1:32 AM CST
• Mesoscale Discussion 236Mar 1, 2:09 AM CST
• Mesoscale Discussion 237Mar 1, 4:19 AM CST
• Mesoscale Discussion 238Mar 1, 5:28 AM CST

452 
WWUS20 KWNS 010227
SEL6  
SPC WW 010227
ARZ000-ILZ000-INZ000-KYZ000-MOZ000-TNZ000-011000-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 46
NWS Storm Prediction Center Norman OK
825 PM CST Tue Feb 28 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northeastern Arkansas
  Southern Illinois
  Central and southern Indiana
  Central and western Kentucky
  Southeastern Missouri
  Western Tennessee

* Effective this Tuesday night and Wednesday morning from 825 PM
  until 400 AM CST.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Isolated very large hail events to 2.5 inches in diameter
    possible
  Isolated damaging wind gusts to 70 mph possible

SUMMARY...Widely spaced yet potentially tornadic supercells are
expected to move east-northeastward into and across parts of this
watch, offering the threats for tornadoes (some significant: capable
of at least EF2 damage), large hail and severe gusts.  Some increase
in storm coverage is likely through the overnight hours.  See SPC
mesoscale discussion 224 for initial meteorological insights.

The tornado watch area is approximately along and 100 statute miles
east and west of a line from 20 miles south southeast of Jonesboro
AR to 30 miles east northeast of Bloomington IN. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 41...WW 42...WW 43...WW
44...WW 45...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 25035.

...Edwards

Tornado Watches in Kentucky, 2017Tornado Watches in Indiana, 2017Tornado Watches in Illinois, 2017Every tornado watch in 2017

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.