ST MEETING 14 July, Forecast for 15 July - DOY 194


Hi Trish. We presently think of starting a full Lagrangian on Thursday around 0000Z.
Ship should keep going to 40N and be in the area 12 - 13 W (to be updated tomorrow).
There is pollution expected from Europe (and the C130 is flying). All the best.
Frank

ST meeting 0714  Monday (FNH)

Meteo outlook

DAY N+1: Upper levels. Cold low just SW of Sagres, moving slowly to the
north and creating instability over the Iberian Peninsula and Gulf of
Cadiz. Sinking air over Madiera and W ACE2 area, rising air over the E
ACE2 area and Sagres. Low levels: The high over the Azores tends to
weaken as it spreads from the Azores to the British Isles. Thermal low
over N Africa with a secondary low over the Gulf of Cadiz.  Winds turn
at all levels counterclockwise around the low just S of Sagres. N to NE
winds around 15 kts over Madeira and Canaries. Abundant cloudiness, with
some showers and possible thunderstorms SW and over the Iberian
Peninsula, including Sagres. Over the remainder of the area, scattered
to broken cumulus and stratocumulus with some possibility of rain N of
Tenerife. Clean air everywhere except for Sagres and NE ACE2 area. Dust
outbreak from the Mediterranean can be expected in this area too.
DAY N+2: The low aloft will fill and move to the NE. Low levels:  the
high
tends to weaken and extend from Azores to the British Isles. Instability
will decrease over Sagres and SW Iberian Peninsula. Anthropogenic air is
expected over Sagres and NE of ACE2 area in low levels. Dust can be
expected in low and medium levels in this area too, as well as S of the
Canaries around 3000 m. MBL depth will tend to decrease slowly over S
ACE2 area and quickly over Sagres and N ACE2 area.
DAY N+3, N+4:
Upper levels: The low fills as it moves north. Ridge-line over the
British Isles building up. Subsidence over the ACE2 area.
Low levels: Area of high pressure spreading from  the West of Azores to
the British Isles. Subsidence is expected over the whole ACE2 area.
MBL-depth will decrease as well as cloud bases and thickness. Clear
skies over Sagres increasing to scattered to broken layers of Cu and Sc
over Madeira and Canaries. Anthropogenic-dusty air is expected for both
days over Sagres area and NE of ACE2 area
Some dust also expected to S of ACE2 area and Canaries at around 3000 m.
Winds from the NE at about 15 kt.

Operations

Today Monday
1. HILLCLOUD in slightly polluted conditions (effect Azores, Madeira?)
2. INTERCOMPARISON C130, Pelican, upwind PDH.
3. CLEARCOLUMN near Sagres cancelled because of bad weather

Tuesday
4. FREETROPE Citation flight.
5. INTERCOMPARISON Pelican - C130 radiometers on the ground 

Wednesday
6. Ship monitoring 40N 12-13W in light of  full LAGRANGIAN. 
7. Plan for CLEARCOLUMN with C130 over Sagres: dust expected.

Thursday
8. 0000Z presently planned start of full LAGRANGIAN

General
- Lynn, Rita and Colin are supposed to present size distribution data
from the full Lag. on Tue
- Phil (D.&R) will present radiative  closure results from Pelican
flights on Wed. 
- Jean Louis will present results from clean and polluted CLOUDYCOLUMN
closures later