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Short Range Public Discussion
 
(Caution: Version displayed is not the latest version. - Issued 0904Z Apr 23, 2017)
 
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 504 AM EDT Sun Apr 23 2017 Valid 12Z Sun Apr 23 2017 - 12Z Tue Apr 25 2017 ...Heavy rain possible over parts of the Southern Mid-Atlantic and the Southeast... ...Heavy rain possible over parts of the Pacific Northwest/Northern California... ...Snow for the Northern Rockies and Cascades... Low pressure over the Tennessee Valley and parts of the Southeast will deepen as the storm moves eastward to the Southeast Coast by Monday evening. The system will produce showers and thunderstorms from parts of the Southern Mid-Atlantic to the Tennessee Valley and southward to the Central Gulf Coast that will move to the Southeast Coast by Monday evening. Rain will also develop over parts of the Ohio Valley to the Northern Mid-Atlantic Coast on Sunday evening that will, likewise, move to the Northern Mid-Atlantic Coast by Monday evening. In addition, a weak upper-level low over Southern Florida will move northeastward out over the Western Atlantic by Monday. The storm will produce showers and thunderstorms over Southern Florida through Sunday night. Meanwhile, a front extending from the Upper Great Lakes to the Northern High Plains will move eastward to New England Coast and stretching westward to Upper Mississippi Valley/Northern Plains by Monday evening. The system will produce rain and snow overnight Saturday from the Northern Plains into the Upper Great Lakes through Monday morning when the rain/snow mix will change over to rain over the Upper Great Lakes/Upper Mississippi Valley into Monday evening. Rain and snow will continue over parts of the Northern Plain through Monday evening. In the meantime, a front over the Great Basin into Southern California will move eastward to the Upper Mississippi Valley/Central Plains while extending westward to Great Basin by Monday evening. The system will produce rain and highest elevation snow over parts of the Pacific Northwest/Northern California and highest elevation snow and lower elevation rain over the Northern Rockies that will expand into parts of the Central Rockies overnight Sunday. The precipitation will wane over the Central Rockies on Monday. Additionally on Monday, a plume of moisture will move into Northern California that will move into Central California by Monday evening. Heavy rain will develop over parts of the Pacific Northwest/Northern California on Monday. The moisture will move inland allowing rain and higher elevation snow to return to the Central Rockies by Monday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php