
eclipse weather report – Tuesday evening
Computer forecasts from the past three days are now (alas) coming
true in the Shanghai area after an extensive line of thundershowers
developed at about 4 pm. Satellite imagery shows that the line extends
well to the west and is still very active at 9 pm tonight.
Assuming the storms follow the pattern of the past several nights,
they will burble away for a few more hours and then begin to gradually
dissipate as the morning approaches. Some will linger past sunrise.
The storms appear to be confined mostly to the land, and do not appear
to be moving out over the South China Sea at this point. This has
important implications, as the blow-off high and mid cloud from these
storms heads mostly to the south (as can be seen in the satellite
animations) and if there are no storms out to sea, the coastal regions
south of the city may be spared the deepest cloud at eclipse time.
This is a slender possibility, but the combination of dissipating
storms and a favourable trajectory for the blow-off may bring some
good luck to areas south of Shanghai.
Detailed computer forecasts, such as those from meteoblue, show
pretty much this trend for Shanghai, with high cloud disappearing at
eclipse time, but low and mid cloud remaining. The latest GFS model
output (the one used by meteoblue) is the most pessimistic yet, with a
large area of 90% relative humidity over Shanghai and southward. Lower
amounts of moisture are forecast to the southwest and west, and even
to the south, and so the best solution seems to be to leave Shanghai
and go elsewhere. There should be some thin spots and holes somewhere
in the area and some lucky chasers will find them.
Over at Wuhan, cloud cover is forecast to be much thinner and at
high levels, as the city is located at the western end of the line of
thunderstorms. It may be a fuzzy eclipse, but if the prediction is
correct, it will be successful. For the most discriminating, drier air
can be found west and southwest of the city.
Good luck.
If someone finds an eclipse poster hanging on a wall or in a shop somewhere, I’d be most appreciative if they could filch, beg, or buy it and send it to me for my collection. Expenses reimbursed.
Jay A
| Stadt | % Bew | Temp | Wetter | Bemerkungen |
| Shanghai | 98 | 26 | Regen | Wolken in allen Schichten. Restchancen Richtung Süden |
| Wuhan | 87 | 31 | trocken | Vor allem hohe Wolken (Cirren), besseres Wetter 500 km Richtung Westen Standorte südlich der Stadt eher empfehlenswert |
eclipse weather report – Tuesday evening
Computer forecasts from the past three days are now (alas) coming
true in the Shanghai area after an extensive line of thundershowers
developed at about 4 pm. Satellite imagery shows that the line extends
well to the west and is still very active at 9 pm tonight.
Assuming the storms follow the pattern of the past several nights,
they will burble away for a few more hours and then begin to gradually
dissipate as the morning approaches. Some will linger past sunrise.
The storms appear to be confined mostly to the land, and do not appear
to be moving out over the South China Sea at this point. This has
important implications, as the blow-off high and mid cloud from these
storms heads mostly to the south (as can be seen in the satellite
animations) and if there are no storms out to sea, the coastal regions
south of the city may be spared the deepest cloud at eclipse time.
This is a slender possibility, but the combination of dissipating
storms and a favourable trajectory for the blow-off may bring some
good luck to areas south of Shanghai.
Detailed computer forecasts, such as those from meteoblue, show
pretty much this trend for Shanghai, with high cloud disappearing at
eclipse time, but low and mid cloud remaining. The latest GFS model
output (the one used by meteoblue) is the most pessimistic yet, with a
large area of 90% relative humidity over Shanghai and southward. Lower
amounts of moisture are forecast to the southwest and west, and even
to the south, and so the best solution seems to be to leave Shanghai
and go elsewhere. There should be some thin spots and holes somewhere
in the area and some lucky chasers will find them.
Over at Wuhan, cloud cover is forecast to be much thinner and at
high levels, as the city is located at the western end of the line of
thunderstorms. It may be a fuzzy eclipse, but if the prediction is
correct, it will be successful. For the most discriminating, drier air
can be found west and southwest of the city.
Good luck.
If someone finds an eclipse poster hanging on a wall or in a shop somewhere, I’d be most appreciative if they could filch, beg, or buy it and send it to me for my collection. Expenses reimbursed.
Jay A