Severe Thunderstorm Watch 280

Issued

Jun 18, 2021, 6:23 PM EDT (22:23 UTC)

Expired

Jun 19, 2021, 2:00 AM EDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Indianapolis radar (KIND), 32 km from the middle of the area, began a volume at 22:26 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

5%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 996 Severe potential...watch possibleJun 18, 3:37 PM EDT
• Mesoscale Discussion 999 Tornado watch 279Jun 18, 7:18 PM EDT
• Mesoscale Discussion 1001 Tornado watch 279...280Jun 18, 8:53 PM EDT
• Mesoscale Discussion 1005 Severe thunderstorm watch 280Jun 19, 1:02 AM EDT

006 
WWUS20 KWNS 182220
SEL0  
SPC WW 182220
INZ000-190600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 280
NWS Storm Prediction Center Norman OK
620 PM EDT Fri Jun 18 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central Indiana

* Effective this Friday night and Saturday morning from 620 PM
  until 200 AM EDT.

* 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...The potential for storm development should increase
through early/mid evening along a boundary that extends across
central Indiana. Given the degree of moisture and instability, rapid
intensification and severe storm development could quickly occur,
including some supercells capable of large hail and damaging winds.
While storms may remain widely scattered this evening, an additional
and more widespread secondary round of severe storms could move into
the region late tonight.

The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 35 miles east southeast
of Muncie IN to 15 miles west southwest of Terre Haute IN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).

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 279...

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 600. Mean storm motion vector
30020.

...Guyer

Severe Thunderstorm Watches in Indiana, 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.