Tornado Watch 27

Issued

Apr 3, 2018, 1:33 PM CDT (18:33 UTC)

Expired

Apr 3, 2018, 9:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

65 kt

The Little Rock radar (KLZK), 144 km from the middle of the area, began a volume at 18:34 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

90%

One or more gusts of 65 knots or more

70%

Ten or more severe hail reports

90%

One or more hailstones of 2 inches or more

70%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 205Apr 3, 11:41 AM CDT
• Mesoscale Discussion 206Apr 3, 12:57 PM CDT
• Mesoscale Discussion 209Apr 3, 3:34 PM CDT
• Mesoscale Discussion 213Apr 3, 6:51 PM CDT

898 
WWUS20 KWNS 031831
SEL7  
SPC WW 031831
ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-040100-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 27
NWS Storm Prediction Center Norman OK
135 PM CDT Tue Apr 3 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Much of Arkansas
  Southern and East-Central Illinois
  Southwest Indiana
  Western Kentucky
  Southeast Missouri
  Northwest Mississippi
  Western Tennessee

* Effective this Tuesday afternoon and evening from 135 PM until
  800 PM CDT.

* Primary threats include...
  A few tornadoes likely with a couple intense tornadoes possible
  Widespread damaging winds and isolated significant gusts to 75
    mph likely
  Widespread large hail and isolated very large hail events to 3
    inches in diameter likely

SUMMARY...Thunderstorms are expected to rapidly form along a cold
front this afternoon and track across the watch area.  Very strong
wind fields and instability suggest the potential for fast-moving
severe storms capable of large hail, damaging winds, and tornadoes. 
Strong tornadoes will be possible with the most intense storms.

The tornado watch area is approximately along and 105 statute miles
east and west of a line from 40 miles south southwest of Hot Springs
AR to 65 miles north of Evansville IN. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU7).

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 25...WW 26...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 25035.

...Hart

Tornado Watches in Arkansas, 2018Tornado Watches in Illinois, 2018Tornado Watches in Missouri, 2018Every tornado watch in 2018

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.