…Francine will continue to bring a heavy rain and flash flood threat to
the Southeast over the next couple days…
…Above average temperatures will develop across the Central U.S. and
Northeast…
… The Southwest will see increased precipitation chances and may see
isolated flash flooding as the forecast remnant circulation of Tropical
Cyclone Ileana approaches Baja California …
Post-Tropical Cyclone Francine continues to spin over Arkansas and bring
stormy and wet conditions across much of the Southeast. Additionally,
attached stationary fronts to the circulation are serving to focus lift
and moisture in the atmosphere to produce potential for flooding rains.
For the remainder of Friday, areas in Tennessee, Alabama, and Georgia are
under a Slight Risk for Excessive Rainfall with a Moderate Excessive
Rainfall Outlook focused over north-central Alabama for enhanced flooding
potential. North Florida will also see the potential for heavy rainfall.
Rainfall rates could be 2-3 inches per hour in the unstable environment.
The threat for flash flooding will remain for Saturday and Sunday with
enhanced lift along Post-T.C. Francine and a lingering frontal boundary,
but the remainder of Friday will see the biggest threat. The Storm
Prediction Center has a Marginal Risk for severe storms with a couple of
tornadoes possible during the rest of the day Friday with some shear in
the atmosphere, but Saturday and Sunday will see general thunderstorms.
The other big story-line will be the heat across the central and eastern
U.S. as high pressure builds in. Texas will see high temperatures in the
mid-upper 90s and some locations could break daily record high
temperatures. The Midwest will see high temperatures in the upper 80s and
low 90s. The central U.S. high temperatures are about 15-20 degrees above
average for this time of the year for context. The eastern U.S. will also
be warm with highs 10-15 degrees above average and reaching the low to mid
80s.
Elsewhere across the country, a cold front will enter the Pacific
Northwest and bring cooler, showery conditions for the weekend. The
Southwest will see moisture enter the area Saturday and Sunday with the
forecast remnants of Post-T.C. Ileana moving northwards towards Baja
California. A Marginal Risk for Excessive Rainfall is forecast for both
Saturday and Sunday for New Mexico and Arizona as thunderstorms will be
able to drop locally heavy rainfall and bring isolated flash flooding
potential.
Wilder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
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