ACUS01 KWNS 061233
SWODY1
SPC AC 061231

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0731 AM CDT Mon Jul 06 2026

Valid 061300Z - 071200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE EASTERN DAKOTAS AND WESTERN MINNESOTA AS WELL AS CENTRAL
VIRGINIA INTO FAR NORTH-CENTRAL NORTH CAROLINA...

...SUMMARY...
Widely scattered severe thunderstorms capable of large to very large
hail and severe wind gusts appear possible across the eastern
Dakotas and western Minnesota this afternoon and evening. Isolated
to scattered damaging wind gusts will also be possible with the
strongest storms in the southern Mid-Atlantic and Carolinas.

...Upper Mississippi Valley into north-central Nebraska...
Early-morning surface analysis reveals a low over far southwest
Manitoba, with a cold front extending southwestward from this low
into southeast MT and then westward across south-central MT. This
surface low and associated cold front precede a well-defined
shortwave trough currently moving through southern Saskatchewan.
This shortwave is forecast to continue eastward today, with the
attendant surface low and cold front progressing eastward as well. A
warm and moist airmass will precede this cold front, with afternoon
highs ranging from the upper 80s/low 90s across eastern SD/northwest
MN into the upper 90s/low 100s from central SD into central NE.
Boundary-layer mixing will be offset by modest low-level moisture
advection, likely keeping dewpoints in the mid to upper 60s over
much of the region. These warm and moist conditions will help
destabilize the airmass, despite relatively warm mid-level
temperatures at the base of a northeastward-advecting EML. Over 2000
J/kg of MLCAPE will likely be in place by the mid afternoon, with a
pocket of 3000 J/kg possible across southeast SD by the late afternoon.

Thunderstorm development is anticipated first across western ND and
northwest MN as the cold front interacts with this buoyant airmass,
with ascent along the front augmented by modest lift along the
southern periphery of the shortwave trough. Enhanced mid-level flow
will exist within the base of this shortwave as well, with the
resulting combination of buoyancy and shear supportive of supercells
early in the convective cycle, with large hail as the primary
hazard. Some instances of hail in excess of two inches are possible.
A somewhat quick transition to a more linear mode appears likely
given the frontal forcing, close storm proximity, and likelihood of
strong cold pools. Severe gusts will be the primary hazard once this
upscale growth occurs.

Lower storm coverage is anticipated with southward extent from
central SD into northern NE. Here, weaker shear is expected to limit
the potential for organized storm modes, though isolated occurrences
of hail and severe wind gusts appear possible with the strongest storms.

...Mid-Atlantic into the Carolinas...
A hot and very moist boundary layer is forecast in the vicinity of
a lee trough this afternoon, with MLCAPE generally from 1500-2500
J/kg. Forcing for ascent will be weak, with convergence along the
lee trough as the primary impetus for convective initiation.
Vertical shear will be weak, but scattered coverage and an
outflow-dominant storm mode will support the potential for upscale
growth into loosely organized clusters. Relatively high storm bases
and steep low-level lapse rates will enhance downdraft potential
with a risk for damaging wind gusts with the strongest storms.
Highest coverage is expected from central VA into far north-central NC.

...Northern Great Basin into southern Montana and northern Wyoming... Early-morning satellite imagery shows a shortwave trough moving into southwestern ID. This shortwave is forecast to continue
northeastward across ID and western MT, moving within the
northwestern periphery of an upper ridge centered over the Four
Corners. Mid-level moisture and ascent associated with this
shortwave will result in isolated to scattered thunderstorms across
the region during the afternoon and evening. Moderate mid-level flow
(i.e. 35-40 kt winds at 500 mb) will accompany this wave as well,
resulting in sufficient deep-layer shear to support at least
episodic supercell and bowing structures capable of damaging winds
and isolated hail.

...Lower MS Valley...
A notable vorticity maximum is currently moving southward from
southwest MO into northwest AR, with slow southward/southeastward
progression of this vorticity maximum expected throughout the day.
Ample low-level moisture exists over the region, supporting diurnal
airmass destabilization and the development of strong buoyancy (i.e.
MLCAPE from 2000 to 3000 J/kg) by the afternoon. Scattered to
numerous thunderstorms are anticipated as the vorticity max moves
through this environment. Vertical shear will be weak, limiting
storm organization, but a few strong downdrafts are still possible.
Isolated occurrences of marginally severe hail are possible as well.

..Mosier/Dean.. 07/06/2026

$$
--- MultiMail/DOS
* Origin: Capitol City Online (618:250/10)

ACUS01 KWNS 091257
SWODY1
SPC AC 091255

Day 1 Convective Outlook CORR 1
NWS Storm Prediction Center Norman OK
0755 AM CDT Thu Jul 09 2026

Valid 091300Z - 101200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
THE NORTHERN AND CENTRAL PLAINS...FROM THE LOWER MISSOURI VALLEY
INTO THE LOWER OHIO VALLEY...AND PORTIONS OF THE MID-ATLANTIC...

CORRECTED FOR INCORRECT GEOGRAPHIC REFERENCE

...SUMMARY...
Thunderstorms with severe wind gusts and hail will be possible this
afternoon and evening across parts of the central and northern
Plains. Severe wind gusts may also occur in parts of the Ozarks, mid Mississippi Valley, lower Ohio Valley, Mid-Atlantic and Arizona.

...Central High Plains into the Central Plains...
A similar thermodynamic environment to yesterday is expected across
the central Rockies today, with scattered afternoon thunderstorm
development anticipated. The presence of a low-amplitude shortwave
trough could lead to greater storm coverage today versus yesterday.
Moist post-frontal easterlies will help offset mixing across much of
the region, keeping dewpoints in the upper 50s/low 60s across east-central/northeast CO, with higher dewpoints farther east into
southern NE and western/central KS. Moderate westerly flow aloft
will support organized storm structures into this more buoyant
environment, with an attendant threat for strong to severe gusts
with the stronger bowing segments. There is some potential for a
contiguous line of storms from the NE Panhandle across eastern CO if
widespread cold pool amalgamation is realized. Uncertainty regarding
convective evolution precludes higher probabilities with this
outlook, but increased probabilities may be needed later if forecast
confidence increases.

...Northern Plains...
A somewhat separate convective regime is expected across the
northern Plains versus farther south. Here, strong heating of a
moist airmass beneath steep mid-level lapse rates will support
robust buoyancy this afternoon, with MLCAPE over 2000 J/kg
anticipated. The better forcing for ascent will remain north of the
region and some convective inhibition may linger, but convergence
along a modest cold front and/or pre-frontal trough/low will likely
result in at least isolated thunderstorms. Strong buoyancy combined
with effective bulk shear around 30-35 kt should support a few
supercells. Large to isolated very large hail and strong downdrafts
are possible within the more organized storms.

...Lower MO Valley into the Lower OH Valley...
An MCS is currently tracking southeastward through central MO, with occasionally strong gusts noted on its leading edge. Continued
eastward progression away from the low-level jet, coupled with the
decreasing strength of the jet, will likely lead to a weakening of
this MCS this morning. However, the moist airmass downstream will
diurnally destabilize, likely resulting in a reintensification of
the MCS and/or development of new storms along its leading edge.
Additional development is possible in the wake of this MCS, amid
low-level moisture convergence along a potential differential
heating boundary. Vertical shear will be weak, but moderate/strong
buoyancy and steep low-level lapse rates will support strong cold
pools and the potential for damaging gusts.

...Mid-Atlantic...
A moist airmass will remain in place across the Mid-Atlantic today, characterized by afternoon dewpoints in the upper 60s to mid 70s.
Airmass destabilization is expected by the early afternoon, with
moderate to strong buoyancy (i.e. MLCAPE from 1500 to 2000 J/kg)
likely. A low-amplitude shortwave trough currently over TN/KY is
forecast to progress northeastward, interacting with the moist and
unstable airmass to support thunderstorms. While the thermodynamic characteristics of the airmass remain similar to the last few days,
increased large-scale ascent and slightly stronger mid-level flow
attendant to the shortwave will likely support greater storm
coverage and intensity. Moderate vertical shear will support a
predominantly outflow-dominant multicellular mode, with damaging
wind gusts as the primary risk, particularly in areas where few
clouds allow for more heating and steeper low-level lapse rates.

...Lower Great Lakes into northern New England...
Moderate westerly/southwesterly flow aloft at the base of a
shortwave trough moving across Ontario and Quebec will extend from
the Lower Great Lakes region through New England this afternoon. A
modest cold front associated with the shortwave will shift eastward/southeastward into the region as well, interacting with the
warm, moist and unstable airmass in place to support scattered
thunderstorms this afternoon. Poor mid-level lapse rates will keep
buoyancy modest, but the moderate westerly/southwesterly flow aloft
could still support some stronger bowing segments capable of
damaging gusts.

...Southeast Arizona...
Mid-level moisture will support afternoon thunderstorm development
across the higher terrain of southeast AZ/southwest NM.
Southwestward storm motion associated with modest mid-level easterly/northeasterly flow could take a few of these storms into
the hot and deeply mixed airmass across southeast AZ. Strong
downdrafts are possible with any stronger storms.

..Mosier/Thornton.. 07/09/2026

$$
--- MultiMail/DOS
* Origin: Capitol City Online (618:250/10)

ACUS01 KWNS 111234
SWODY1
SPC AC 111232

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0732 AM CDT Sat Jul 11 2026

Valid 111300Z - 121200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF
EASTERN OKLAHOMA INTO THE LOWER MISSISSIPPI VALLEY/TENNESSEE VALLEY
AND SOUTHEAST...AND ACROSS PARTS OF SOUTHERN ARIZONA...

...SUMMARY...
Thunderstorms capable of producing scattered severe/damaging winds
will be possible today from parts of the southern Plains eastward
into the lower Mississippi Valley and Southeast. Severe wind gusts
may also occur across portions of southern Arizona.

...Southern Plains/Ozarks into the Tennessee Valley/Southeast and Mid-Atlantic...
Weak mid-level troughing with multiple embedded and convectively
enhanced vorticity maxima will advance slowly eastward today from
the mid MS Valley into the lower OH Valley/Midwest and TN Valley.
Ongoing thunderstorms across these regions this morning are being
aided by warm/moist advection from a modest west-southwesterly
low-level jet. Current expectations are for moderate instability to
develop by this afternoon along/south of a surface boundary that
will remain aligned generally southwest-northeast from parts of the
southern Plains into the lower MS Valley/TN Valley and Southeast.
Multiple thunderstorm clusters will likely form or persist later
today in this favorable thermodynamic regime. With modest westerly
mid-level flow present, east-southeastward propagation of
consolidated cold pools/outflow from these clusters will likely pose
a threat for scattered severe/damaging winds over a broad region as
low-level lapse rates steepen with filtered daytime heating.

The Slight Risk has been adjusted for both the influence of ongoing
morning convection and the potential for multiple clusters to spread east-southeastward along a differential heating zone/instability
gradient across the Southeast and to the Atlantic Coast through
early evening. Isolated damaging winds may also occur farther north
along/near a weak synoptic front, but less instability is forecast
with northward extent into the OH Valley and Mid-Atlantic. Farther
west across parts of the southern Plains into the Ozarks, at least
isolated thunderstorms should develop along/south of the front this
afternoon, even though large-scale ascent will remain weaker across
these regions due to closer proximity to prominent mid-level ridging
across the Rockies. This activity will move slowly
east-southeastward while posing a threat for both severe winds and
hail, as moderate to strong instability and modest deep-layer shear
support loosely organized multicells.

...Southern Arizona...
Mid/upper-level ridging will build further over the Rockies and
Southwest today, with weak easterly mid-level flow present over
parts of AZ. Daytime heating of a seasonably moist low-level airmass
(surface dewpoints in the 50s to low 60s across southeast AZ) will
support weak to locally moderate instability as the boundary layer
becomes very deeply mixed. Thunderstorms that initially develop
across the higher terrain should spread west-southwestward into the
lower desert elevations through the afternoon/evening, with severe
wind gusts possible given ample DCAPE and inverted-v type soundings.
Isolated hail may also occur with the stronger cores.

..Gleason/Thornton.. 07/11/2026

$$
--- MultiMail/DOS
* Origin: capitolcityonline.net * KY, USA (618:250/10)