Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 334 AM EDT Fri Sep 14 2018 Valid 12Z Fri Sep 14 2018 - 12Z Sun Sep 16 2018 ...Hurricane Florence will produce many threats, such as, heavy rain, damaging winds, and storm surge... ...Catastrophic flooding and life-threatening surge expected over parts of the Carolinas... ...There is a slight risk of severe weather over parts of North Carolina coast... ...Heavy rain possible across parts of the Western Gulf Coast and parts of the Southern Plains... Hurricane Florence is currently bearing down on the Carolinas. Hurricane Warnings are in effect across the Carolinas as hurricane force winds are impacting the region. This storm will also produce life-threatening storm surge and heavy rainfall as it slowly moves onshore on Friday morning. Catastrophic rainfall is expected across southeast coastal North Carolina and northeastern South Carolina. Flash Flood watches are in effect for much of this region. The Storm Prediction Center has also issued a slight risk for severe thunderstorms across the North Carolina coast. Please see the latest National Hurricane Center advisories for updates on the forecast track, impacts, and details of any watches and warnings associated with Hurricane Florence. Onshore flow off the Atlantic Ocean will aid in producing rain with embedded thunderstorms over parts of the Northern Mid-Atlantic through Saturday evening. Tropical moisture and daytime heating will aid in producing showers and thunderstorms over Florida also through Saturday evening. Additionally, southeasterly flow off the Gulf of Mexico and upper-level energy will aid in producing showers and thunderstorms over parts of the Central/Western Gulf Coast into parts of the Southern Plains through Saturday evening into Sunday. Meanwhile, a front extending from parts of the Upper Great Lakes into the Central Plains will be reinforced by a second front extending from Central Canada into parts of the Northern Plains to the Great Basin. The final front will extend from the Upper Great Lakes westward into the Northern High Plains then southwestward into the Great Basin by Saturday evening. Showers and thunderstorms will develop along the front over parts of the Upper Mississippi Valley/Upper Great Lakes that will expand into the Northern Plains by Friday afternoon continuing into Saturday evening. Elsewhere, weak onshore flow over the Pacific Northwest will aid in producing rain over the area through Saturday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php