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Topic: SPC Sep 6, 2024 1730 UTC Day 2 Convective Outlook (Read 20 times) previous topic - next topic

SPC Sep 6, 2024 1730 UTC Day 2 Convective Outlook

SPC Sep 6, 2024 1730 UTC Day 2 Convective Outlook

[html]SPC 1730Z Day 2 Outlook
     
Day 2 Outlook Image

Day 2 Convective Outlook 
NWS Storm Prediction Center Norman OK
1223 PM CDT Fri Sep 06 2024

Valid 071200Z - 081200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms will be possible Saturday over parts of the Northeast
and Mid Atlantic, the central Rockies/High Plains, Florida, and
across parts of the Southwest. No severe weather is expected.

...Synopsis and Discussion...
A deep upper low/trough will move eastward across the Great Lakes
and toward the Northeast, beco*ing negatively tilted and resulting
in substantial cooling aloft. At the surface, a cold front will
extend south from a low over southern Quebec, roughly from the
Hudson Valley into the Piedmont around 18Z.

While dewpoints in the 60s F will exist ahead of the cold front,
instability will be minimal and generally less than 500 J/kg due to
a shallow/cool boundary layer. In addition, low-level shear will not
be particularly strong, with modest warm advection around 850 mb. As
such, severe weather is not anticipated with this system despite the
strong upper trough.

Elsewhere, northwest flow will exist across the central High Plains
east of the upper ridge, with around 1000 J/kg MUCAPE developing.
Dewpoints may struggle to reach 50 F, though isolated thunderstorms
are expected with locally gusty winds or small hail over northeast
CO into western NE during the late afternoon.

..Jewell.. 09/06/2024


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Source: SPC Sep 6, 2024 1730 UTC Day 2 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day2otlk_1730.html)