Tornado Watch 392

Issued

Oct 2, 2018, 2:55 PM EDT (18:55 UTC)

Expired

Oct 2, 2018, 11:00 PM EDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The State College radar (KCCX), 62 km from the middle of the area, began a volume at 18:59 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

60%

One or more gusts of 65 knots or more

20%

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

90%

• Mesoscale Discussion 1510Oct 2, 2:26 PM EDT
• Mesoscale Discussion 1514Oct 2, 4:43 PM EDT
• Mesoscale Discussion 1515Oct 2, 4:49 PM EDT
• Mesoscale Discussion 1516Oct 2, 7:24 PM EDT
• Mesoscale Discussion 1517Oct 2, 7:34 PM EDT

581 
WWUS20 KWNS 021853
SEL2  
SPC WW 021853
NYZ000-OHZ000-PAZ000-WVZ000-030300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 392
NWS Storm Prediction Center Norman OK
255 PM EDT Tue Oct 2 2018

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Southeast New York
  Eastern Ohio
  Pennsylvania
  Extreme northern West Virginia

* Effective this Tuesday afternoon and evening from 255 PM until
  1100 PM EDT.

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

SUMMARY...A moist and modestly unstable environment along with
increasingly strong deep-layer/low-level shear will support the
possibility of supercells capable of a tornado risk along with
hail/wind.

The tornado watch area is approximately along and 50 statute miles
north and south of a line from 10 miles southwest of Youngstown OH
to 30 miles east southeast of Wilkesbarre PA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).

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.

&&

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 27030.

...Guyer

Tornado Watches in Pennsylvania, 2018Tornado Watches in Ohio, 2018Tornado Watches in West Virginia, 2018Every tornado watch in 2018

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.