Tornado Watch 565

Issued

Dec 15, 2021, 5:30 PM CST (23:30 UTC)

Expired

Dec 15, 2021, 11:00 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

80 kt

The La Crosse radar (KARX), 28 km from the middle of the area, began a volume at 23:33 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

90%

One or more EF2 to EF5 tornadoes

40%

Ten or more severe wind reports

95%

One or more gusts of 65 knots or more

95%

Ten or more severe hail reports

10%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 2032 Severe potential...watch likely 563Dec 15, 4:51 PM CST
• Mesoscale Discussion 2036 Tornado watch 565Dec 15, 7:11 PM CST
• Mesoscale Discussion 2038 Tornado watch 565Dec 15, 9:03 PM CST
• Mesoscale Discussion 2039 Severe thunderstorm watch 566Dec 15, 9:48 PM CST

117 
WWUS20 KWNS 152327
SEL5  
SPC WW 152327
IAZ000-ILZ000-MNZ000-MOZ000-WIZ000-160500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 565
NWS Storm Prediction Center Norman OK
530 PM CST Wed Dec 15 2021

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Eastern Iowa
  Northwest Illinois
  Southeast Minnesota
  Northeast Missouri
  Western and Central Wisconsin

* Effective this Wednesday afternoon and evening from 530 PM
  until 1100 PM CST.

* Primary threats include...
  Several tornadoes likely with a couple intense tornadoes
    possible
  Widespread damaging winds and scattered significant gusts to 90
    mph expected

SUMMARY...A line of thunderstorms over western Iowa is racing
east-northeastward at 60-70mph, producing widespread and significant
wind damage.  Several embedded tornadoes have also being reported. 
These storms will persist through the evening and affect the watch
area.

The tornado watch area is approximately along and 80 statute miles
east and west of a line from 50 miles north of Eau Claire WI to 40
miles south southwest of Moline IL. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU5).

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 563...WW 564...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 80 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 25060.

...Hart

Tornado Watches in Wisconsin, 2021Tornado Watches in Iowa, 2021Tornado Watches in Minnesota, 2021Every tornado 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.