SPC Oct 6, 2026 0100 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0747 PM CDT Mon Oct 05 2026

Valid 060100Z - 061200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Organized severe thunderstorms are not forecast through tonight.

...Synopsis...
A 500 mb upper trough will continue to eject into the Atlantic as
surface high pressure sets in from the Great Lakes to the East
Coast. Showers and thunderstorms will continue along portions of the
Gulf Coast to the FL Peninsula through tonight, where an unstable
boundary layer, driven by 70s F surface dewpoints, remains in place.
A few lightning flashes may also occur over the next couple of hours
with ongoing isolated thunderstorms over the Great Basin, southern
CO/northern NM, and the Upper MS Valley given cooler temperatures
aloft.

..Squitieri.. 10/06/2026


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SPC Oct 5, 2026 1300 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1300Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0732 AM CDT Mon Oct 05 2026

Valid 051300Z - 061200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected today.

...Discussion...
Progressive northwesterly flow aloft will continue to reside over
the northern tier of the CONUS and Canada, with a prominent upper
trough shifting eastward over Quebec. Surface high pressure and
large-scale subsidence will generally prevail east of the
Mississippi River, while surface troughing becomes established
across the Great Plains, but with limited moisture.

Along the Gulf Coast and Florida, some thunderstorms are expected
near/south of a southward-shifting frontal boundary. Isolated
low-topped thunderstorms may occur today from northern New York into
northern New England as a cold front shifts eastward. A few
convectively enhanced wind gusts might even occur across this region
as lapse rates diurnally steepen.

..Guyer/Dean.. 10/05/2026


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SPC Oct 5, 2026 0600 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 1200Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1257 AM CDT Mon Oct 05 2026

Valid 051200Z - 061200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe storms are unlikely today.

...Synopsis...
Upper ridging and accompanying mid-level northwesterly flow will
dominate most of the CONUS as a pronounced mid-level trough
overspreads New England and ejects into the Atlantic today. Surface
high pressure and large-scale subsidence will overspread much of the
U.S. east of the MS River while surface troughing becomes
established across the Great Plains, but with limited moisture. The
net result will be limited thunderstorm development over much of the
CONUS. Along the Gulf Coast into FL, a few thunderstorms may develop
ahead of a diffuse frontal boundary given the presence of seasonable
low-level moisture. A couple of lightning flashes may also accompany
a few mid-level impulses over the Great Basin, Rockies, Upper MS
Valley, and northern New England in association with localized
ascent and cooler temperatures aloft.

..Squitieri/Wendt.. 10/05/2026


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SPC Oct 5, 2026 0100 UTC Day 1 Convective Outlook

LIVE MAP (ABOVE) ... SPC 0100Z Day 1 Outlook


Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0837 PM CDT Sun Oct 04 2026

Valid 050100Z - 051200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected across the continental U.S.
tonight.

...Synopsis...
A baroclinic zone across the Southeast U.S. continues to sag
southward as a broader upper trough tracks eastward from the Great
Lakes. Given the lack of stronger upper air support and the onset of
nocturnal cooling/decreased buoyancy, the coverage of lightning
flashes across the Southeast should continue to decrease overnight.
Similarly, a plume of marginal buoyancy over CO into NM, which has
supported some lightning flashes thus far, should also wane through
the evening.

..Squitieri.. 10/05/2026


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