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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 0902Z Apr 22, 2017)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 502 AM EDT Sat Apr 22 2017 Valid 12Z Sat Apr 22 2017 - 12Z Mon Apr 24 2017 ...There is a slight risk of severe thunderstorms over the Lower Mississippi Valley and Tennessee Valley... ...Heavy rain possible from parts of the Mid-Atlantic to the Tennessee Valley/Southern Appalachians... ...Snow is possible for parts of the Northern Rockies and Cascades... Low pressure over the Lower Mississippi Valley will move northeastward to the Southeast/Southern Appalachians by Sunday morning and to near the Southeast Coast by Sunday evening. The system will produce showers and thunderstorms from parts of the Mid-Atlantic to the Middle/Lower Mississippi Valley and parts of the Southern Plains that will move to the Southeast/Southern Appalachians and continuing eastward to the Mid-Atlantic Coast by Sunday evening. Meanwhile, low pressure over Southeastern Canada will slowly dissipate by Sunday morning. The system will aid in producing rain over parts of the Northeast that will end by Sunday morning. A front over South-Central Canada will move southward into the Great Lakes to the Northern High Plains by Sunday evening. Rain will develop over parts of Northern Plains/Upper Mississippi Valley by Saturday evening and expanding into the Upper Great Lakes by Sunday morning. The rain will wane to an area over the Upper Mississippi Valley by Sunday evening. A front will move onshore over the West Coast on Saturday morning moving inland to parts of the Northern High Plains to Southern California by Sunday evening. The storm will produce rain over parts of the Pacific Northwest/Northern California Coast on Saturday morning that will expand inland to parts of the Northern Intermountain Region overnight Saturday. By Sunday morning, rain and higher elevation snow will develop over parts of the Northern Rockies and expand into parts of the Northern High Plains by Sunday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php