Tornado Watch 49

Issued

Feb 28, 2017, 11:29 PM EST (04:29 UTC)

Expired

Mar 1, 2017, 7:00 AM EST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Indianapolis radar (KIND), 77 km from the middle of the area, began a volume at 04:30 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

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 226Feb 28, 9:41 PM EST
• Mesoscale Discussion 228Feb 28, 11:03 PM EST
• Mesoscale Discussion 231Mar 1, 12:52 AM EST
• Mesoscale Discussion 233Mar 1, 1:44 AM EST
• Mesoscale Discussion 234Mar 1, 2:19 AM EST
• Mesoscale Discussion 235Mar 1, 2:32 AM EST
• Mesoscale Discussion 238Mar 1, 6:28 AM EST

659 
WWUS20 KWNS 010427
SEL9  
SPC WW 010427
INZ000-KYZ000-OHZ000-011200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 49
NWS Storm Prediction Center Norman OK
1130 PM EST Tue Feb 28 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northern through southeastern Indiana
  Extreme northern Kentucky
  Western to central Ohio

* Effective this Tuesday night and Wednesday morning from 1130 PM
  until 700 AM EST.

* Primary threats include...
  A few tornadoes possible
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...The severe-storm threat will continue along the northern
parts of the watch near the Michigan border, and increase farther
south through the remainder of the pre-dawn hours, along and ahead
of an approaching cold front.  Damaging gusts, a few tornadoes, and
isolated hail are possible.  See SPC mesoscale discussion 228 for
initial meteorological reasoning.

The tornado watch area is approximately along and 70 statute miles
either side of a line from 45 miles north northeast of Lafayette IN
to 30 miles south southeast of Dayton OH. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU9).

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 44...WW 45...WW 46...WW
47...WW 48...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 25035.

...Edwards

Tornado Watches in Indiana, 2017Tornado Watches in Ohio, 2017Tornado Watches in Kentucky, 2017Every tornado watch in 2017

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.