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An extensive cold frontal boundary will move eastward off of the East Coast on Sunday. The tail end of this frontal boundary will linger over the Gulf Coast, bringing widespread showers and thunderstorms to the region. As a warm, muggy air mass moves northward from the Gulf of Mexico, strong to severe thunderstorms will develop over the central Gulf Coast. Heavy rain may produce flash floods over Louisiana, Mississippi, Alabama and the southern portion of the Tennessee Valley. This system will bring stormy weather to the southern Plains, the lower Mississippi Valley, the Tennessee Valley, the Gulf Coast and the Southeast. The Northeast will stay mostly clear of precipitation, although scattered snow showers will be possible over northern New England during the morning.
Meanwhile, a wave of low pressure will move across the Intermountain West and the central Plains on Sunday. This system will usher snow showers across the Rockies and a mixture of rain and snow over the Plains. Just to the west, an onshore flow from the Pacific will bring rainy weather to the Pacific Northwest, as well as mixed precipitation to the Cascades. The Southwest will stay mostly clear on Sunday due to high pressure along the coast of California.
SATURDAY'S WEATHER EXTREMES:
HIGHEST TEMPERATURE (DEGREES F).........................93 Immokalee, Fla.
HIGHEST HEAT INDEX (DEGREES F)..........................93 Kendall, Fla.
LOWEST TEMPERATURE (DEGREES F)..........................-7 Wakefield, Mich.
LOWEST WIND CHILL (DEGREES F)...........................-42 Atqasuk, Alaska
HIGHEST WIND GUST (MPH).................................93 Mt. Washington, N.H.
HIGHEST PRECIPITATION (INCHES)..........................1.49 St. Augustine, Fla.
ON THIS DATE
California was experiencing a hot spring day on this date in 1989. On that day, San Francisco recorded a high of 91 degrees, while 93 degrees was reported at San Jose. Southern California was even hotter with readings of 103, 104, and 106 in Santa Maria, Riverside, and Los Angeles, respectively.
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