SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook RESENT 1 NWS Storm Prediction Center Norman OK 0702 PM CST Thu Feb 11 2021 Valid 120100Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Widely scattered weak thunderstorm activity remains possible tonight across parts of the Gulf and south Atlantic Coast states. ...01Z Outlook Update... A gradual suppression of broad mid-level subtropical ridging is underway across the Gulf Coast states into the Southeast, in response to the progression of several short wave perturbations around its northwestern and northern periphery. Veering of mid-level flow and lower/mid-tropospheric drying in the wake of these features have resulted in elevated weak thunderstorm activity (across parts of southern Texas through the north central Gulf coast vicinity) becoming increasingly focused in closer proximity to the surface frontal zone. The shallow leading edge of the Arctic air is now offshore, across the northwestern and north central Gulf of Mexico, into parts of southeastern Alabama, with cold air damming also underway to the lee of the southern Appalachians. At least some further southward advancement is expected overnight. Otherwise, some weak thunderstorms have also developed well south of the front, across the interior central Florida Peninsula, where modest daytime boundary-layer destabilization occurred. Forcing for ascent associated with a weak mid/upper perturbation may be contributing to this activity, and it appears that this could persist another couple of hours, before diminishing or spreading east-northeastward offshore. ..Kerr.. 02/12/2021
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