SPC Nov 12, 2024 0100 UTC Day 1 Convective Outlook
SPC Nov 12, 2024 0100 UTC Day 1 Convective Outlook
[html]SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0647 PM CST Mon Nov 11 2024
Valid 120100Z - 121200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
The risk for severe thunderstorms appears negligible through
tonight.
...01Z Update...
...Pacific Coast...
A mid-level tongue of cold air (including 500 mb temperatures of -24
to -28C) continues to migrate inland of the Pacific coast. It
appears that the axis of coldest air is in the process of shifting
to the east of the Sierra Nevada and Cascades. However, latest
model output suggests that the mid-level temperatures may remain
cold enough to support instability sufficient for a continuing risk
of occasional weak convection capable of producing lightning, mainly
to the west of the Cascades, through about 06-08Z.
...Lower Great Lakes...
Occasional lightning flashes have been evident with convection
developing beneath a lower/mid-level cold pool associated with a
digging short wave trough across southern Ontario into the lee of
Lakes Ontario and Erie. However, with diurnal cooling underway and
low-level cold advection ongoing to the lee of the lower Great
Lakes, forecast soundings suggest that this activity is unlikely to
persist beyond another hour or so.
..Kerr.. 11/12/2024
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Source: SPC Nov 12, 2024 0100 UTC Day 1 Convective Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day1otlk_0100.html)