Weather on Thursday May 9 2024 pm showers in NYC ,,, Rain Ohio and Tenn Valley, Dry west coast

Severe thunderstorms and flash flooding are likely from parts of the
Ozarks to the Tennessee Valley tonight before the severe weather threat
shifts south on Thursday toward the Southern Plains and Southeast...

...Heavy mountain snow and and moderate lower elevation rain gradually
wanes across the Northern Rockies on Thursday...

...Above average temperatures remain across southern Texas and the
Southeast, while warmth also begins to build into the Northwest
late-week...

Active weather is ongoing and expected to continue through tonight across
parts of the middle/lower Mississippi valleys, Tennessee Valley, and into
the southern Appalachians. The atmospheric setup includes an upper low
over the Northern Plains with associated troughing extending into the
Southwest, allowing for moist southerly flow into the Mid-South. A
quasi-stationary boundary extending into the Ohio Valley and detached
outflow boundary in the Tennessee Valley will provide a focus for storms
to develop and track along. Numerous thunderstorms are expected to become
severe and possibly contain very large to giant hail, damaging wind gusts,
and some strong tornadoes possible. The Storm Prediction Center has issued
a Moderate Risk (level 4/5) of severe weather between south-central
Missouri to Middle Tennessee and south-central Kentucky. Additionally, as
storms overlap with saturated soil from earlier rainfall and train behind
one another, numerous instances of flash flooding are possible. The
greatest risk for flash flooding is across southwestern Kentucky and
Middle Tennessee, where a Moderate Risk (level 3/4) of Excessive Rainfall
is in effect. By Thursday, the overnight thunderstorm activity is
anticipated to sink southward and impact areas from the Southern Plains to
the Southeast. Very large hail appears probable across parts of central
Texas and into the ArkLaTex region, with a broader region of severe hail
and damaging wind potential extending through the lower Mississippi Valley
into the Southeast. Areas of flash flooding are also possible along this
corridor stretching between eastern Texas and central Georgia. As the
associated cold front continues to push south and east on Friday, the
scattered thunderstorms threat is expected to linger, but remain confined
to the Southeast.

A long duration heavy precipitation event is also ongoing throughout the
Northern Rockies and parts of the northern High Plains through at least
Thursday. The upper low over the Northern Plains continues to funnel
moisture into favorable upslope regions of Montana and Wyoming. Heavy snow
remains probable into tonight across the higher elevated ranges, with
moderate rainfall in the lower elevations. As the upper low weakens and
becomes more elongated, precipitation is also expected to weaken while
also sliding southward into the central/southern Rockies. Additionally,
the well below average temperatures are forecast to remain throughout the
Rockies with a warmer trend beginning by the end of the week.

Warm weather for the final few days of the workweek can be expected across
the Northwest, Southeast, Gulf Coast, and southern Texas. Locations in
these regions can anticipate highs around 10 to 15 degrees above average,
with a few daily record highs potentially being tied/broken. As far as
actual high temperatures go, southern Texas will be by far the hottest
with highs into the triple digits and upper 90s. Low-to-mid 90s are
forecast across Florida on Thursday, with 80s and 90s throughout the rest
of the Gulf Coast and Southeast. Meanwhile, the Pacific Northwest will
also need to break out the summer clothing and stay hydrated as highs soar
into the 80s by Friday, with low 90s possible in localized interior valley
locations from central Californ