Southeast Discussion

By: NWS
By: NWS

LOOKING AT THE LONG WAVE PATTERN ACROSS N AMERICA THIS AFTERNOON...WE SEE RIDGES OFF THE E COAST AND OVER WRN CANADA AND THE PAC NW. IN BETWEEN A LARGE TROUGH DOMINATES THE CENTRAL PART OF THE CONTINENT. THERE ARE TWO PRIMARY SHORT WAVES WITHIN THIS TROUGH. ONE IS DIVING SEWD ACROSS THE CENTRAL PLAINS. THE OTHER IS LIFTING NEWD ACROSS THE GREAT LAKES WITH A LOBE EXTENDING SWD INTO THE TN VALLEY. SURFACE ANALYSIS SHOWS A WEAK AREA OF LOW PRESSURE OVER THE CENTRAL GULF OF MEXICO ALONG A STATIONARY FRONT THAT EXTENDS FROM THE NRN FL PENINSULA SW TO THE YUCATAN PENINSULA. A COLD FRONT IS PUSHING EWD ACROSS NRN GA...SRN AL AND THE FL PANHANDLE. THIS FRONT IS PRECEDED BY SOME SC CLOUDS BUT IS RAIN-FREE. WE CONTINUE TO SEE MULTILAYER CLOUDS ACROSS MUCH OF THE FL PENINSULA. IN OUR FORECAST AREA...MOST OF THE LOW CLOUDS HAVE FINALLY LIFTED...BUT WE CONTINUE TO SEE A FEW SPRINKLES FALLING OUT OF A MID LEVEL DECK ACROSS THE SERN THIRD OF THE FORECAST AREA. A VORT CENTER IS PASSING OVERHEAD THIS AFTERNOON AND HAS ENHANCED THE VERY LIGHT PRECIPITATION OVER THE NE GULF. SOME OF THIS WILL BE MEASURABLE ONCE IT REACHES THE ERN FL BIG BEND.


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