- Day Three
acus03 kwns 250724
Storm Prediction Center ac 250723
Day 3 convective outlook
National Weather Service Storm Prediction Center Norman OK
0223 am CDT Tuesday Oct 25 2016
Valid 271200z - 281200z
..no severe thunderstorm areas forecast...
severe thunderstorms are not expected over the U.S. On Thursday.
..cntrl Appalachians through middle Atlantic area...
Surface low initially over the Ohio Valley 12z Thursday will develop eastward
into the northestern states by evening while trailing cold front advances
southeastward through the Tennessee Valley. A warm front will move northward through the
middle-Atlantic region. Corridor of widespread showers will likely
shift from the Ohio Valley through the middle Atlantic and northestern states
along warm conveyor belt and within pre-frontal confluent regime.
However...prospects for deep convection will remain limited due to
meager instability resulting from limited moisture return and weak
middle-level lapse rates. A few lightning strikes will be possible with
some of the pre-frontal convection...but updrafts will remain
shallow with thermodynamic profiles through the convective layers
only marginally sufficient for thunderstorms.