SPC 0600Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1241 AM CDT Tue Sep 29 2020

Valid 301200Z - 011200Z


Severe thunderstorms are not expected Wednesday.

Model guidance has trended away from the development of a mature
upper low over the Southeast early Wednesday in favor of a less
amplified, more progressive embedded shortwave trough. Consequently,
the front is now expected to be well off the East Coast, with any
moist and unstable conditions confined to central/southern FL.

Upper troughing is still expected to persist across the majority of
the central and eastern CONUS, with moderate to strong flow aloft
arcing cyclonically from Alberta through the northern Plains, mid MS
and OH Valleys, and Northeast. Forcing for ascent and cold
temperatures aloft attendant to a shortwave trough moving within
this upper trough may contribute to a few storms deep enough to
produce lightning across the Upper Great Lakes region. Expansive
upper ridging will remain in place across the western CONUS. Stable
conditions beneath this ridging will preclude thunderstorm

..Mosier.. 09/29/2020

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