Weather Friday June 21 2024 Heat waves continue ... Colorado T-storms dry west coast

The Weather Man Podcast, I talk about weather!

Heavy rain and flash flooding concerns across the northern Plains to
the upper Midwest...
...Focus for record hot temperatures will shift into the Mid-Atlantic by
Saturday...
...Heat building over much of the West...
Tropical Storm Alberto made landfall in Mexico this morning and continues
to spiral rainfall into South Texas, which will slowly diminish into
Friday. Some of the tropical moisture from Alberto will be drawn northward
and energize the scattered showers and thunderstorms from the southern
High Plains to the Four Corners heading into the weekend. These
showers/storms will be more numerous during the late afternoon to early
evening hours in these areas, and there is a Slight Risk of excessive
rainfall in this area late this afternoon and again on Friday. Meanwhile,
the National Hurricane Center continues to monitor the potential of
tropical cyclone formation over the western Atlantic near the Bahamas as a
tropical wave moves west-northwestward in the general direction of
northeastern Florida and coastal Georgia. Locally modest rainfall with
some breezy winds may affect this region later tonight through Friday.
Across the northern Plains to the upper Midwest, rainfall will increase
over the area through Friday to the north of a frontal boundary. Rounds of
rain, heavy at times, over already saturated soils will increase the
threat for flash flooding. A Moderate risk of excessive rainfall has been
highlighted for eastern South Dakota into southern Minnesota through
Saturday morning. Farther east, scattered thunderstorms are likely across
the Great Lakes region and the Northeast near and north of the eastern
extent of the front. Some severe thunderstorms are also possible per the
Storm Prediction Center.
The heat will continue to set records in parts of the Northeast with a
shift into the Mid-Atlantic this weekend. Afternoon high temperatures and
warm overnight lows will challenge and exceed daily records for many
locations in the Ohio Valley eastward. Heat index readings are expected to
peak from 100 to 105 degrees in many locations, and Heat Advisories are in
effect from Ohio to New Jersey. Those without access to reliable air
conditioning are urged to find a way to cool down as very warm overnight
temperatures (only in the 70s) will prevent natural cooling and allow the
heat danger to build over time indoors without air conditioning.
Temperatures may be lower and less hazardous at the coast if/where sea
breezes form. On Friday, cooler air will filter into northern New England
behind a slowly-moving cold front, but temperatures south of the boundary
will soar into the middle/upper 90s Friday and especially Saturday. These
temperatures may be the highest observed in several years for some
locations. In much of the West (West Coast and Great Basin/Desert
Southwest), temperatures will continue to heat up each day with 90s and
100s quite prevalent by Saturday. Some daily record highs may be
challenged in Northern California into Oregon.