ACUS01 KWNS 121923
SWODY1
SPC AC 121921

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0121 PM CST Thu Dec 12 2024

Valid 122000Z - 131200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Lightning is possible this evening and tonight along the eastern
shores of Lake Ontario in association with lake-effect snow bands.

...20Z Update...
The forecast remains on track, and no changes were made with this
update. See the previous discussion below for details regarding
isolated lightning potential downwind of Lake Ontario.

..Weinman.. 12/12/2024

.PREV DISCUSSION... /ISSUED 1016 AM CST Thu Dec 12 2024/

...NY...
Cool/dry and stable conditions will prevail over the most of the
CONUS today, with no organized thunderstorm activity expected.  One
exception will be in the vicinity of the eastern shores of Lake
Ontario (Jefferson/Lewis/Oswego counties).  A long-fetch lake-effect
snow band is forecast to develop later this evening and tonight.
Forecast soundings suggest a sufficiently deep convective layer to
promote charge separation and a few lightning strikes - mainly after
02z.

$$