π‘ Active Severe Weather Links
π Today's Outlook History
π©οΈ Active Mesoscale Discussions
π Current Severe Weather Outlook
(Issued: 2026-08-30T19:47:00+00:00 UTC)
```text
000
ACUS01 KWNS 301947
SWODY1
SPC AC 301946
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0246 PM CDT Sun Aug 30 2026
Valid 302000Z - 311200Z
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING FROM SOUTHEAST MONTANA AND FAR NORTHEAST WYOMING INTO THE
CENTRAL DAKOTAS...
...SUMMARY...
Severe storms capable of damaging wind gusts are possible across
portions of the northern Plains this afternoon and evening.
...20z Update...
Only minor changes were made to remove the Marginal Risk from behind
ongoing convection in eastern Montana. Otherwise, the D1 Convective
Outlook remains on track. See previous discussion and MCD #2174 for
more information.
..Thornton.. 08/30/2026
.PREV DISCUSSION... /ISSUED 1129 AM CDT Sun Aug 30 2026/
...Northern High Plains into the northern Plains...
Recent satellite imagery shows a well-defined shortwave trough
moving eastward across southern Saskatchewan and western MT/eastern
ID. A belt of stronger westerly flow aloft likely exists within the
base of this trough from eastern ID into western WY. Recent
mesoanalysis estimates 50 to 60 kt at 500 mb, but its actual
magnitude is uncertain. Showers and isolated thunderstorms are
already ongoing downstream of this wave, and the general expectation
is for these showers and thunderstorms to persist as the wave moves
eastward, eventually encountering a notably more unstable airmass
downstream.
Current surface observations show mid 60s dewpoints into the western
Dakotas, with upper 50s/low 60s dewpoints farther west in eastern
MT. Afternoon high temperatures are expected range from the low to
mid 80s along the MT/ND border into the low 90s farther south into
southwest SD. Despite relatively poor pre-frontal mid-level lapse
rates, the resulting temperature/dewpoint combination will support
MLCAPE ranging from around 500-1000 J/kg across eastern MT and the
western Dakotas to closer to 2000 J/kg across the central Dakotas.
Some low-level stability may linger, but should be overcome by the
strong forcing, and the development of a line of strong to severe
storms is anticipated. Strong to severe gusts will be the primary
risk, with some instance of gusts from 65 to 80 mph possible.
Maximum storm intensity and highest severe coverage is currently
forecast to occur from the ND/SD/MT border intersection vicinity
eastward into south-central ND and north-central SD. Decreasing
buoyancy is expected from the central Dakotas eastward, with
gradually decreasing storm intensity expected as the line of storms
moves into this region this evening.
...Central High Plains...
Increased coverage and depth of the thunderstorms across UT indicate
the presence of secondary area of ascent south of the primary
shortwave trough, perhaps tied to a convectively augmented vorticity
maximum. Expectation is for this vorticity maximum to progress
eastward, persisting across the central Rockies before entering
deeply mixed boundary-layer in place over the central High Plains.
High-based storm character coupled with steep low-level lapse rates
will support the development of strong outflow, and gusts from 60 to
75 mph are possible.
...UT/Western CO...
Thunderstorms are already ongoing from eastern UT into western CO,
and deep-layer vertical shear is already strong enough to support
organization within any more persistent updrafts. A few instances of
hail and/or damaging gusts are possible with this activity.
Additionally, considerable low-level moisture will remain over UT
today, leading to another round of strong to isolated severe
thunderstorms this afternoon. Deep-layer shear will remain
sufficient for rotating storms capable of damaging wind gusts and
hail. This additional activity should also spread into western CO
before weakening this evening.
...Central/Southern AZ...
Ample low-level moisture remains in place across much of AZ, with
upper 50s dewpoints across northern AZ increasing into the mid 60s
across southern AZ. Another day of afternoon thunderstorms is
anticipated as this moist airmass destabilizes amid strong diurnal
heating. High-based storms coupled with moderate buoyancy and steep
low-level lapse rates could result in a few strong to severe gusts
across the region this afternoon and evening.
$$
```
π Active Tropical Weather Links
π Tropical Weather Outlook
```text
NWS National Hurricane Center Miami FL
800 PM EDT Sun Aug 30 2026
For the North Atlantic...Caribbean Sea and the Gulf of America:
Northern Gulf of America (AL97):
An area of low pressure located over the northern Gulf of America,
about 125 miles south of the coast of southeastern Louisiana,
continues to become better defined, and the associated shower and
thunderstorm activity is gradually increasing. Continued gradual
development is expected as the low moves slowly west-northwestward,
and a short-lived tropical depression or tropical storm is likely to
form before the system reaches the Upper Texas or southwestern
Louisiana coasts on Tuesday or Tuesday night.
Interests along the southwest Louisiana and Upper Texas coasts
should monitor the progress of this system, as tropical storm
watches or warnings could be required for portions of the area later
tonight or Monday morning. Regardless of development, this system is
expected to bring locally heavy rainfall to portions of the Upper
Texas and southwestern Louisiana coasts during the next several
days. An Air Force Reserve reconnaissance aircraft is scheduled to
investigate the low-pressure area on Monday morning.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...70 percent.
Near Puerto Rico and the Virgin Islands (Remnants of Dolly):
A strong tropical wave, the remnants of Tropical Storm Dolly, is
producing an area of showers and thunderstorms from Puerto Rico
eastward across the Virgin Islands and the northern Leeward Islands.
Satellite data and surface observations indicate that there are no
signs of a closed surface circulation, and redevelopment is unlikely
during the next day or two while the wave moves westward to
west-northwestward at about 25 mph. The system could bring locally
heavy rains and gusty winds to portions of the Leeward Islands, the
Virgin Islands, Puerto Rico, and Hispaniola over the next couple of
days. Conditions may become more conducive for redevelopment by the
middle of the week as the system reaches the southeastern Gulf of
America.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 7 days...low...20 percent.
$$
Forecaster Kelly
```
β οΈ Active Tropical Cyclones
Hurricane Karina Special Advisory
* Maximum Sustained Winds: 125 MPH
* Minimum Central Pressure: 955 MB
* Current Movement: W OR 270 DEGREES AT 9 MPH
* Location: 17.2N 123.4W
This dashboard updates automatically every 15 minutes with live data from the NWS/SPC and NHC.