SPC 1730Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1100 AM CST Tue Feb 09 2021

Valid 101200Z - 111200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast on Wednesday.

...Synopsis...
An upper low will remain over south-central Canada with a tight
midlevel temperature gradient and broad cyclonic flow regime across
the northern states. Meanwhile, relatively zonal flow will persist
over much of the Southeast. Elsewhere, a lower-latitude shortwave
trough will progress across northern Mexico, with gradual height
falls into the southern Plains by Thursday morning.

At the surface, a cool and stable air mass will exist over much of
the CONUS with an Arctic high centered over Alberta, and very cold
conditions into the northern Plains. The exception will be across
the Gulf Coast states, where pressures will lower a bit during the
day, and where weak warm advection will bring lower 60s dewpoints
onshore across LA, southern MS/AL/GA mainly after 00Z.

Subtle lift associated with this warm advection will result in
elevated showers and a few weak thunderstorms from north TX into AR
and western TN mainly after 03Z. Severe hail is unlikely given the
weak instability.

A few early day storms are expected from the FL Panhandle into
southern GA, beneath zonal flow aloft and with weak lift. Other
thunderstorms are possible from southeast TX into LA into Thursday
morning as the moist air mass is undercut by the cooler air from the
north.

..Jewell.. 02/09/2021

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