Post by bdgwx on Apr 4, 2024 16:40:48 GMT -6
First...mosue56 I'm really sorry to hear that.
PAH discussion:
LSX discussion:
PAH discussion:
A region of dry air and cloud free conditions behind the
moisture plume moves into Missouri Monday morning. The big
question is how far eastward this dry area progresses for the
eclipse as the plume gets disconnected with the Upper Midwest
low. Model ensembles remain pretty much the same as the previous
model cycle, with mostly clear to partly cloudy skies still the
forecast for the afternoon... but pretty much only the
afternoon. The GFS ensemble is more pessimistic while the
CMC/ECMWF generally have great viewing conditions. The temporal
uncertainty remains as any shift earlier/later will risk
raising cloud coverage due to active weather the night before
and night after the eclipse.
moisture plume moves into Missouri Monday morning. The big
question is how far eastward this dry area progresses for the
eclipse as the plume gets disconnected with the Upper Midwest
low. Model ensembles remain pretty much the same as the previous
model cycle, with mostly clear to partly cloudy skies still the
forecast for the afternoon... but pretty much only the
afternoon. The GFS ensemble is more pessimistic while the
CMC/ECMWF generally have great viewing conditions. The temporal
uncertainty remains as any shift earlier/later will risk
raising cloud coverage due to active weather the night before
and night after the eclipse.
LSX discussion:
(*MONDAY/SOLAR ECLIPSE*)
Guidance consensus on Monday is that the
closed low will lift northward through the Midwest as the surface
low follows a similar trajectory. In turn, a weak cold front will
swing through the CWA during the latter half of the day. Guidance
varies on how much moisture will be available ahead of this
front, with more moist solutions (like the 12z GFS) producing
convection along the front during the afternoon in the vicinity of
the path of totality. However, this solution appears to be an
outlier compared to the 12z ensemble suite, which only has about
10 of 100 members having precipitation occurring over southeastern
Missouri and southwestern Illinois, leading to very low
confidence in rainfall occurring in this part of the CWA on
Monday. Of equal note is cloud cover - what data that is available
at this time range shows a mix of cumulus potential and cirrus
potential, with the latter being favored more. If the cirrus is
thin enough, only minor impacts to viewing the eclipse are
expected. However, some guidance shows a thicker cirrus deck that
may mostly obscure the event for some. Confidence in either
solution is not high at this time, and likely won`t be until
roughly 24 hours ahead of time.
Guidance consensus on Monday is that the
closed low will lift northward through the Midwest as the surface
low follows a similar trajectory. In turn, a weak cold front will
swing through the CWA during the latter half of the day. Guidance
varies on how much moisture will be available ahead of this
front, with more moist solutions (like the 12z GFS) producing
convection along the front during the afternoon in the vicinity of
the path of totality. However, this solution appears to be an
outlier compared to the 12z ensemble suite, which only has about
10 of 100 members having precipitation occurring over southeastern
Missouri and southwestern Illinois, leading to very low
confidence in rainfall occurring in this part of the CWA on
Monday. Of equal note is cloud cover - what data that is available
at this time range shows a mix of cumulus potential and cirrus
potential, with the latter being favored more. If the cirrus is
thin enough, only minor impacts to viewing the eclipse are
expected. However, some guidance shows a thicker cirrus deck that
may mostly obscure the event for some. Confidence in either
solution is not high at this time, and likely won`t be until
roughly 24 hours ahead of time.