The Weather Man Podcast, I talk about weather‪!‬ Stephen Pellettiere

The active weather pattern to continue across the Central to Southern
Plains with potential for additional severe weather, heavy rains and flash
flooding...

...Wetter weather pattern for the Ohio Valley into the Mid-Atlantic, along
with cooler weather...

...Strong front to move into the Pacific Northwest and northern California
this weekend producing widespread heavy precipitation and late season
mountain snows...

The recent active spring weather pattern across large portions of the
central U.S. expected to continue over the next few days.  A surface
frontal boundary currently stretching from the Southern Plains into the
Great Lakes and a second front forecast to sink southward from the Central
Plains into the Southern Plains will be the focus for the potential for
additional showers and thunderstorms.  Severe weather is possible across
portions of the Central to Southern Plains near these fronts, along with
heavy rains and localized flash flooding.  Flood watches are currently in
effect across portions of southern Oklahoma, eastern Texas into northwest
Louisiana.  Moderate to major river flooding is occurring across these
area from recent heavy rains, with additional heavy rain potential
possibly exacerbating ongoing flooding conditions.  While conditions have
been wet across the Central to Southern Plains toward the Mid to Lower
Mississippi Valley of late, drier conditions have persisted farther to the
east.  Some relief from the recent dry weather across the east on tap over
the next few days with some much needed rains falling from the Ohio Valley
into the Mid-Atlantic. Cooler temperatures also expected for the late week
and into the weekend across portions of the Northeast into the
Mid-Atlantic.  Record high temperatures across portions of the
Mid-Atlantic and Ohio Valley on Thursday will replaced with much cooler
temperatures from a combination of cloud cover, rainfall and winds blowing
off the still cool western Atlantic.

A strong cold front will be pushing inland into the Pacific Northwest late
Friday and into northern California on Saturday.  This front will be
producing some late season heavy precipiation totals across much of
northern California, north through the Oregon Cascades, southern
Washington Cascades and from the Olympic Range of Washington, southward
along the Washington and Oregon coasts.  Late season snows are possible
through the Oregon and Washington Cascades and the northern to Central
Sierra Range with accumulations in excess of a foot possible across the
northern Sierra.  In addition to the heavy precipitation and late season
snows associated with this strong front, temperatures will be much below
average across much of the West coast on Saturday with highs 10 to 20
degrees colder than average. These colder than average temperatures are
expected to persist through Sunday while also spreading farther inland
into the Great Basin and portions of the Southwest.

Severe thunderstorm and flash flooding threat exists across parts of
the central/southern Plains tonight before expanding into the Mississippi
Valley on Thursday...
Critical Fire Weather potential over portions of the Southern High
Plains through this evening.
Cool and snowy in parts of the Northwest with above average and
potentially record breaking temperatures into the Ohio Valley and
Mid-Atlantic on Thursday

A very active start to May is underway throughout much of the central and
southern Plains as scattered to numerous thunderstorms developing this
afternoon are forecast to continue into the overnight hours. Low pressure
strengthening over the central High Plains and an attached warm front
extending through the mid-Mississippi Valley will help draw ample moisture
northward from the Gulf of Mexico. Meanwhile, convection forming off a
southern High Plains dryline should push eastward across parts of Oklahoma
and Texas, with several storms potentially containing very heavy rainfall
and training over similar regions. The flash flooding risk is highest
across parts of central and eastern Texas through tonight, where a
Moderate Risk (level 3/4) of Excessive Rainfall is in effect. Several
inches of rain falling over sensitive and previously saturated terrain
could lead to numerous flash floods, with a few significant flooding
events possible. Additionally, a Slight Risk (level 2/4) of Excessive
Rainfall extends northward into central Oklahoma and all of north-central
Texas, with a separate Slight Risk in effect from north-central Kansas to
western Iowa. These regions can also expect scattered thunderstorms
containing intense rainfall rates and possible instances of flash flooding
through early Thursday. These evening and overnight thunderstorms are also
expected to contain damaging wind gusts, large hail, and a few tornadoes
from West Texas to south-central Kansas. These regions fall within an
Enhanced Risk (level 3/5) of severe thunderstorms issued by the Storm
Prediction Center. As the low pressure system and attached cold front
gradually swings eastward into the Upper Midwest and Mississippi Valley on
Thursday, showers and thunderstorms are also expected to expand eastward.
Scattered severe thunderstorms and flash flooding are possible between a
large area stretching from the Midwest to southern Plains and Lower
Mississippi Valley, with the threat becoming more isolated across the
Plains and Deep South on Friday. Residents and visitors are reminded to
have multiple ways to receive warnings and never drive across flooding
roadways.

One additional hazard in the central U.S. due to the potent weather system
impacting the region will be the increased fire weather concerns over the
southern High Plains through this evening. Low relative humidity combined
with gusty winds and dry terrain could cause wildfires to develop easily
and spread rapidly. Red Flag Warnings are in effect and stretch from
eastern New Mexico to southeast Colorado, far west Oklahoma, and the
northwest Texas Panhandle.

Elsewhere, a weather pattern consisting of upper-level riding over the
East and troughing over the Northwest will support cooler weather in the
northern Rockies and Northwest with summer-like warmth spreading from
parts of the Midwest to the Mid-Atlantic. In addition to the below average
temperatures in the Northwest, snow is likely across the high terrain of
the northern Rockies through Friday. Meanwhile, the above average warmth
throughout the Midwest, Ohio Valley, and Mid-Atlantic could break daily
high temperature records on Thursday as highs reach into the upper 80s and
low 90s. Cooler in New England

Severe Weather and Excessive Rainfall concerns for parts of the
Upper/Middle Mississippi Valley and Great Plains through mid-week...

...Moderate Risk of Excessive Rainfall now in place for the Ark-La-Tex
Thursday...

...Critical Fire Weather potential over portions of the Southern High
Plains on Wednesday...

...Cool and snowy in the Northwest; above average conditions continue
across much of the Central and Eastern U.S....

Mean ridging over the eastern U.S. with an energetic upper-level trough
over the north-central/northwestern U.S. will keep most of the active
weather over the next few days over portions of the Upper/Middle
Mississippi Valley and Great Plains. Showers and thunderstorms will
continue into Tuesday evening as an upper-level wave/surface frontal
system over the Central Plains moves to the northeast through the
Upper/Middle Mississippi Valley. There is an Enhanced Risk (level 3/5) of
severe weather from the Storm Prediction Center through Tuesday evening
from central Iowa southwestward through northeastern Kansas for the threat
of very large hail, damaging winds, and a few tornadoes. Additional storms
further to the southwest along a trailing cold front will lead to a risk
for some locally heavy rainfall totals as storm motions stall in tandem
with the slowing cold front. Some scattered instances of flash flooding
will be possible from southeastern Kansas into northern Oklahoma with a
Slight Risk of Excessive Rainfall (level 2/4) in place.

As this system departs to the into the Great Lakes, another upper-level
wave approaching from the west over the Rockies will help to
reinforce/organize the trailing frontal system over the Central High
Plains. This will bring yet another round of showers and thunderstorms
across the Plains Wednesday. Severe storms are expected ahead of a dryline
over portions of the Central/Southern Plains. A broad Slight Risk is in
place for very large hail, damaging winds, and tornadoes, with a localized
Enhanced Risk over southwest Kansas/northwestern Oklahoma. Dry, windy
conditions behind the dryline will also bring a heightened threat of
wildfires, with a Critical Risk of Fire Weather (level 2/3) issued by the
Storm Prediction Center for the Southern High Plains.

Storms are expected to cluster/expand in coverage into the evening hours
Wednesday as the frontal system lifts into the Middle Missouri Valley. A
southern stream upper-level wave will help lead to a second area of
enhanced convective development over portions of southern Oklahoma into
much of the eastern half of Texas. In both cases, plentiful moisture and a
strong low level jet will help foster locally intense rainfall, with
Slight Risks of Excessive Rainfall for the threat of scattered flash
flooding. Both areas of storms are forecast to continue into the day
Thursday with daytime heating bringing the potential for additional
development from the Upper-Mississippi Valley south-southwestward through
the Lower Missouri Valley and into the Ark-La-Tex. A broad Slight Risk of
Excessive Rainfall has been issued for the region, with a targeted
Moderate Risk (level 3/4) now in place for the Ark-La-Tex. Wet antecedent
conditions due to rainfall from any initial storms followed by the
prospects of additional development will continue the threat for flash
flooding.

Severe weather threat returns to the northern and central Plains on
Tuesday, followed by severe weather and heavy rain/flash flooding threats
farther down the central Plains on Wednesday...

...More high-elevation snows expected across the Pacific Northwest into
the northern and central Rockies for the next couple of days...

...Warmer than average temperatures across the southern tier states to the
Midwest and Mid-Atlantic but cold and windy across the Northwest...

The weather pattern that keeps sending fast-moving disturbances across the
western U.S. will continue to form new low pressure systems in quick
succession over the mid-section of the country through the next couple of
days.  The latest low pressure system that brought severe weather and
flash flood emergencies over eastern Texas, together with widespread cold
rain across the northern U.S., to wet snow near the Canadian border, will
weaken as it tracks northeast across the Great Lakes into southern Canada
on Tuesday.  Meanwhile, the heaviest thunderstorms and severe weather
associated with the trailing front had moved off the Louisiana coast. 
Less intense showers and thunderstorms are expected to push eastward
across the Mid-South, Tennessee and Ohio Valleys toward the Appalachians
and New England on Tuesday, before becoming more widely scattered along
the Eastern Seaboard into Wednesday morning.  Snowfall on the order of
6-12 inches are forecast to accumulate over parts of the Cascades and
northern Rockies increasing to nearly 2 feet over the higher elevations of
Glacier National Park.

As the surge of cold air pushes through the Northwest on Tuesday with the
leading cold front reaches the northern and central Plains, a couple of
low pressure systems are forecast to develop.  The low pressure system
that will move across the upper Midwest will bring a threat of severe
thunderstorms across the northern and central Plains ahead of the trailing
cold front on Tuesday.  Another low pressure system will develop over the
central Plains on Tuesday, this system will bring a higher threat of
severe weather and more widespread heavy rain threat farther south into
the central Plains later on Wednesday as the system intensifies.

Temperature-wise, fast-moving cold upper troughs propagating through the
Northwest and Northern Plains/Upper Midwest will keep things cooler than
average today.  More cold air will push through the Pacific Northwest on
Wednesday.  Meanwhile, a warming trend will send afternoon temperatures as
high as the lower 90s for the next couple of afternoons across the central
to southern High Plains.  Temperatures will also be well above average
along the East Coast on Tuesday followed by a slight cool down on
Wednesday as a back-door cold front dips south from New England.

More rounds of excessive rainfall and severe weather expected to push
east and southeast toward the Lower Mississippi Valley through tonight
into Monday...

...High-elevation snow is forecast to overspread the Pacific Northwest
into the Northern Rockies Monday and Tuesday...

...Warmer than average temperatures spread from Midwest to Mid-Atlantic;
colder weather returns to the Northern Plains and the Pacific Northwest
with warming trend across the central/southern High Plains...

More active and unsettled weather is forecast to continue across the
mid-section of the country through the next couple of days as multiple
disturbances embedded within a slow-moving upper-level trough traverse the
western U.S. toward the Great Plains.  The low pressure system responsible
for the latest outbreak of strong to severe thunderstorms across the
central to southern Plains today will continue to track northeast across
the upper Midwest on Monday.  Another bout of strong to severe
thunderstorms can be expected to impact areas farther east across the
ArkLaTex region through tonight as the trailing cold front associated with
the low pressure system edges farther to the east.  In addition, heavy
downpours associated with these storms will result in flooding concerns
across the region.  By Monday, the highest threat of severe weather and
heavy rain will shift farther southeast toward to central Gulf Coast
region, mainly over Louisiana, as the front begins to weaken.  A lower
risk of severe weather and heavy rain will extend farther northeast into
the Tennessee Valley on Monday.

Meanwhile, widespread cold rain is expected to continue through tonight
across the northern Plains, upper Midwest and toward the lower Great Lakes
ahead of the low pressure system and the associated warm front, with
embedded thunderstorms closer to the center of the low.  Temperatures
could be cold enough to support wet snow Monday morning across portions of
the northern Plains into the upper Midwest.  The rain will then shift
eastward into the western portion of New England, down across the Ohio
Valley toward the Appalachians on Tuesday as the low center moves into
southern Canada.

On the warm side of the low pressure system, strong southerly flow will
bring very warm air northward into the East Coast through the next couple
of days with high temperatures climbing well into the 80s and possibly
into the lower 90 degrees for the interior Mid-Atlantic. These
temperatures will be in contrast to the cool temperatures expected for the
Pacific Northwest by Monday as the next upper-level trough from the
Pacific is forecast to push inland.  This trough will bring widespread
high-elevation snow and lower elevation rain across the Pacific Northwest
toward the northern Rockies on Monday with increasingly windy conditions
as a low pressure system begins to develop over the northern High Plains
into southern Canada.  By Tuesday, the main front will move fairly quickly
across the northern and central Plains, with rapid development of showers
and thunderstorms expected across the upper Midwest in the afternoon ahead
of a warm front and a low pressure wave.  Some thunderstorms may begin to
erput across the central Plains into Texas east of a dry line.  Farther
west, warm downslope winds from the southern Rockies will set a warm trend
across the southern High Plains with high temperatures reaching into the
80s and lower 90s by Tuesday afternoon.

More rounds of excessive rainfall and severe weather expected to push
eastward across the southern Plains tonight reaching into lower
Mississippi Valley on Monday...

...Snow over central Colorado gradually tapers off tonight but
high-elevation snow is forecast to spread inland from the Pacific
Northwest into the northern Rockies on Monday...

...Critical Fire Weather Risk over portions of the Southern High Plains...

...Warmer than average temperatures spreads from Midwest into Mid-Atlantic
on Sunday while well below average temperatures shift from the Four
Corners and Rockies into the Northern Plains...

More active and unsettled weather is forecast to continue across the
mid-section of the country through the remainder of the weekend into
Monday.  Multiple disturbances embedded within a slow-moving upper-level
trough responsible for the active weather are currently developing another
low pressure system over the central Plains.  Showers and thunderstorms
are expected to erupt in the warm and unstable air ahead of the low
pressure system east of a dry line from northern Texas through central
Oklahoma into eastern Kansas.  A moderate risk of severe weather is
forecast through tonight per the Storm Prediction Center with the
possibility of large hail, damaging winds and multiple tornadoes.  In
addition to the severe weather, intense rainfall rates are expected to
accompany these thunderstorms at times, leading to a moderate to locally
high potential of flash flooding to occur in these areas through tonight. 
By Sunday, the main area of thunderstorms will push farther eastward
toward the mid- and lower Mississippi Valley with a slightly lower threat
of severe weather.  Meanwhile, the heaviest rains should push farther
southeast into the ArkLaTex region as the trailing cold front associated
with the low pressure system begins to weaken.  The center of the low is
forecast to track northeast across the central Plains on Sunday, reaching
into the upper Midwest on Monday.  Strong to locally severe thunderstorms
can be expected to extend northeast across these areas including the
Midwest ahead of a warm front to the east of the low pressure center. 
Meanwhile, the threat of heavy rain will push farther southeast into the
lower to mid-Mississippi Valley as the cold front pushes eastward.

Meanwhile, snow on the backside of the low pressure system is forecast to
gradually taper off tonight over central Colorado, and so will the areas
of mixed rain/snow extending into the Four-Corners as the system moves
farther away into the central Plains.  Meanwhile, another low pressure
system will begin to move away from the Great Lakes into Canada with
scattered showers ending over the upper Great Lakes but continuing from
the lower Great Lakes into New England.  Strong southerly flow behind a
high pressure system will bring very warm air northward into the East
Coast through the next couple of days with high temperatures climbing well
into the 80s to possibly near 90 degrees for the interior Mid-Atlantic. 
These temperatures will be in contrast to the cool temperatures expected
for the Pacific Northwest by Monday as the next upper-level trough from
the Pacific is forecast to push inland.  This trough will bring widespread
high-elevation snow and lower elevation rain across the Pacific Northwest
toward the northern Rockies on Monday with increasingly windy conditions
as a low pressure system begins to develop over the northern High Plains
into southern Canada.  Meanwhile, dry and warm winds sinking down the
southern Rockies will continue to keep a critical fire weather risk over
the southern High Plains.