Weak ridging and subsidence over the operations area will continue through
the next 24 hours giving a very low probability of mid-level cloud cover.
As the trough to the west approaches the ops area, the ETA is increasing
mid-level RH to > 70% by 12Z on Thursday morning - giving at least a moderate
chance for sustaining CLEX clouds in the nwrly flow (particularly North of
LBF) - but the consensus is that we will have a better chance of seeing cirrus
and bands of convective activity in advance of the trough.
In the long term. the MRF is showing continued wnw flow with a series of waves
moving through the area for the next week - so we should have at least another
couple of good opportunities before this pattern changes significantly.
(just a footnote - except for a brief class 4 tornado episode, the area around
the ARM site has been bone dry)
Don, Chris, and Larry
Sunrise
Central Daylight Time
Begin civil twilight 7:30 a.m.
Sunrise 7:58 a.m.
Sun transit 1:28 p.m.
Sunset 6:59 p.m.
End civil twilight 7:27 p.m.