Severe Thunderstorm Watch 131

Issued

May 3, 2021, 2:47 PM CDT (19:47 UTC)

Expired

May 3, 2021, 9:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Lincoln radar (KILX), 16 km from the middle of the area, began a volume at 19:47 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

20%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 496 Severe potential...watch likelyMay 3, 2:08 PM CDT
• Mesoscale Discussion 501 Severe potential...watch possibleMay 3, 4:51 PM CDT
• Mesoscale Discussion 503 Severe thunderstorm watch 131May 3, 5:15 PM CDT

189 
WWUS20 KWNS 031943
SEL1  
SPC WW 031943
ILZ000-MOZ000-040200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 131
NWS Storm Prediction Center Norman OK
245 PM CDT Mon May 3 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Illinois
  East-central Missouri

* Effective this Monday afternoon and evening from 245 PM until
  900 PM CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Initial cluster with multiple supercells should develop
east across the Mississippi River into central Illinois. Additional
storms may develop farther south in east-central Missouri.

The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 45 miles north northeast
of Peoria IL to 20 miles south southwest of Saint Louis MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 128...WW 129...WW 130...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.

...Grams

Severe Thunderstorm Watches in Illinois, 2021Severe Thunderstorm Watches in Missouri, 2021Every severe thunderstorm watch in 2021

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.