Tornado Watch 57

Issued

Mar 19, 2020, 3:29 PM CDT (20:29 UTC)

Expired

Mar 19, 2020, 11:00 PM CDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Des Moines radar (KDMX), 62 km from the middle of the area, began a volume at 20:30 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

50%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 206Mar 19, 2:41 PM CDT
• Mesoscale Discussion 209Mar 19, 5:43 PM CDT
• Mesoscale Discussion 215Mar 19, 8:40 PM CDT

789 
WWUS20 KWNS 192027
SEL7  
SPC WW 192027
IAZ000-MOZ000-NEZ000-200400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 57
NWS Storm Prediction Center Norman OK
330 PM CDT Thu Mar 19 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  southern Iowa
  northern Missouri
  southeast Nebraska

* Effective this Thursday afternoon and evening from 330 PM until
  1100 PM CDT.

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

SUMMARY...Storms including a few supercells are expected to continue
developing this afternoon into the evening, posing a risk for large
hail, tornadoes and damaging wind.

The tornado watch area is approximately along and 120 statute miles
east and west of a line from 35 miles north northeast of Des Moines
IA to 10 miles east southeast of Falls City NE. 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 56...

AVIATION...Tornadoes and 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 24035.

...Dial

Tornado Watches in Iowa, 2020Tornado Watches in Nebraska, 2020Tornado Watches in Missouri, 2020Every tornado watch in 2020

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.