SPC 1730Z Day 2 Outlook
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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