ST MEETING 19 July, Forecast for 20 July - DOY 201

Hi Trish. Please note the slight change in the position of the ship: 40N
13W. 
SeaWIFFS was NOT launched (delayed till beginning August): so we can
only party on the success of ACE-2. I think I'll be coming to Lisbon, 
Joe won't. Randy will reply to Shane tomorrow.
Ciao. Frank 


ST meeting 0719  Saturday

Meteo Outlook

DAY N+1, N+2: Upper levels: Similar patterns to today; the ridge tends
to move
slightly to the E as a trough builds-up between Azores and Canaries for
N+2. Winds from the N and NW. Low levels: similar to today for N+1; for
N+2 the anticyclone becomes weaker over the Iberian Peninsula as a
secondary low begins to build-up. Winds from NE and N at 15-20kts. MBL
steady for N+1, around 900-1000m, but it could start deepening by the
end of N+2. Clear skies over Sagres, Gulf of Cadiz and N ACE2 area
increasing to scattered/broken to the S, with Cu and Sc and becoming
broken/overcast with Sc around Madeira and S to the Canaries. Clouds
bases around 600-700 m probably rising slightly by the end of N+2. Still
some anthropogenic air over Tenerife in the MBL becoming clean on N+2
both in the MBL and FT. Anthropogenic air over  Sagres in the MBL and
FT. A new outbreak of polluted MBL air is expected to be advected from W
Europe and the British Isles to the N of ACE2 area during N+1 crossing
38N during N+2 and reaching the Canary Islands during N+4. 

DAY N+3, N+4: Upper Levels: Cold low W of the Iberian Peninsula,
stationary, bringing
instability to the N ACE2 area and W Iberian Peninsula. Winds from the
SW, moderate to strong.  Rising air over central and W ACE2 area,
subsidence to the E. 
Low levels: The high presure area extending from SW Azores to the
British Isles tends to move N as a secondary low builds-up over the
Iberian Penisula. Thermal low over N Africa. Instability over the W
Iberian Peninsula where some showers and thunderstorms are possible over
Sagres and NW ACE2 area. Scattered/broken with Cu and Sc over Sagres and
Portuguese Coast. Scattered over the E ACE2 area  increasing to broken
layers of Cu and Sc over the W and S, including Canaries, almost
overcast over Madeira and NW ACE2 area. Light rain is possible to N of
Tenerife. Winds from the N-NW average 10kts. Some dust could be
adevected into the NE of ACE area in low levels from the Mediterranean
and  N Africa. S of Canary Islands we can expect some dust  around 3000
m which could move over the Islands by N+4. Anthropogenic air from
Northern Europe expected in the MBL  over central and N ACE2 area,
reaching Canaries N+4. The MBL-top will rise, as well as cloud bases and
tops, as the trough betwen Canaries and Azores deepens.

Operations

Today Saturday
1. Successful CLOUDYCOLUMN with Merlin, Dornier, C130 and  Pelican
2. Intercomparison Pelican -PDH

Sunday
3. CLEARCOLUMN near Sagres with C130 but without ship.
4. Ship to be at 40N 13W for start of Full LAGARNGIAN at 2100Z (fine
tuning later)

Mon
5. Ship within 50 km off Portuguese coast at 40 N,  for CLEARCOLUMN work
with Portuguese A/C

Tue
6. Possibility for CLOUDYCOLUMN behind C130 on 4th LAGRANGIAN flight

Wed. 
7. Possibility for CLEARCOLUMN with C130 over Sagres and ship before
ship goes into port on Wed.

Thu/Fri
8. Possibility for Clear work with C130 near Sagres.