Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 347 PM EDT Thu Aug 22 2019 Valid 00Z Fri Aug 23 2019 - 00Z Sun Aug 25 2019 ...Showers and thunderstorms with heavy rain possible from the Northeast to the central Great Plains late Thursday into early Friday... ...Heavy rain threat expected to settle farther to the south into the southern Mid-Atlantic region on Friday... ...Much cooler air spreading south and east from the Great Plains and Midwest into the eastern U.S.... ...Locally heavy rain possible over southern Florida over the next day or two... ...Fire weather conditions are Critical Thursday for parts of the Rockies and Intermountain West... A cold front producing showers and thunderstorms will continue to push east through the remainder of the Northeast, while settling farther south over the Mid-Atlantic, Ohio valley, mid Mississippi valley and central Great Plains Thursday evening and overnight. In addition to producing strong, gusty winds, some of these storms may produce heavy rainfall amounts, resulting in localized flash flooding. On Friday, the front is forecast to settle farther south into the southern Mid-Atlantic region and Tennessee valley, while lingering across Arkansas and Oklahoma back into the central High Plains. Conditions will remain favorable for heavy rainfall amounts, particularly across southeastern Virginia and eastern North Carolina, where a series of upper level disturbances interacting with plenty of moisture may produce multiple storms, raising flash flooding concerns. North of the front, high pressure will continue to build across the Great Lakes and upper Midwest, with much cooler temperatures spreading south and east from the the Great Plains and Midwest into the eastern U.S. late in the week through the weekend. Friday and Saturday daytime temperatures are forecast to be seasonal to below-normal across a large portion of the northern and central Great Plains eastward to the Northeast and Mid-Atlantic region. Summertime conditions will continue ahead of the front across much of the Southeast to the southern Great Plains. Showers and thunderstorms associated with trough of low pressure moving west from the Bahamas may produce locally heavy rains over portions of the southern Florida peninsula over the next day or two. The combination of low humidities and strong winds will lead to critical fire weather conditions for portions of the lower Colorado Basin, central Great Basin and the central Rockies. Red Flag Warnings are in effect Thursday and Friday for portions of the region. Pereira Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php