PACJET IOP 02 - 23 January 2001
Program Status for 23 January 2001
Status |
Forecast Discussion |
Aircraft Status |
Flight Plan |
Soundings Status |
Special Notes
Status
2010 (PST) |
No flight operations for tomorrow. Next flight update 1500 (PST) January 24.
|
1834 (PST) |
Flight operations completed for today, due to technical difficulties. Tentative flight ops
plan for Thursday updated by January 24 1400 (PST).
|
1733 (PST) |
Addition to previous PACJET message.
New band seen developing to the SW of aircraft location given in
previously message. Orientation 30' to 210', maximum reflectivites
40 - 50 dBZ. Melting level 5000ft.
|
1720 (PST) |
Report from Pacjet aircraft at 0100 UTC: a precip band with maximum
reflectivities greater than 50 dBZ was located at 38'02" N and
123' 20" W. The orientation of the band was from 10' to 190'.
The aircraft also reported new development to the southwest.
|
1255 (PST) | In the warm sector: Strength of the LLJ was 40 kts winds and
170 degs at 900 m alt. On the cold side: Winds 30 kts from 228 deg at 900 m alt. The first
leg around 36.5 N and East of 123 , echo tops a 6 km, isolated cells at 8-10 km, 45 dBZ echos.
West of 123 deg, echo tops at 3-4 km with isolated 40-45 dBZ echos. Cells more isolated in
nature.
|
1240 (PST) | No super IOP tomorrow. No PACJET flight tomorrow.
No special soundings at OAK tomorrow.
PACJET flight for January 25 TBD. |
1200 (PST) | Take-off |
0800 (PST) |
The P-3 will fly today, Tuesday 1/23 to survey a frontal band and upper
level low pressure system over the Eastern Pacific. Scheduled takeoff
time is noon today. The plane is scheduled for an 8 hour flight.
There will be a possible super IOP centered around 23Z Wednesday. The
final decision regarding the super IOP will be made later this
afternoon.
Special 3-hr OAK soundings are scheduled to support this
operation...from 12Z today through 12Z tomorrow.
A decision will be made later today whether to continue special OAK
soundings beyond 12Z tomorrow.
|
Status |
Forecast Discussion |
Aircraft Status |
Flight Plan |
Soundings Status |
Special Notes
Forecast Discussion 0815 (PST)
Frontal band off the Central California coast with echoes onshore near
EKA south to just offshore SFO. Upper level dynamics splitting and
surface low pulling to the NE. Despite this...a lot of cold air with
this system and enough dynamics to generate some showers from SFO south.
Frontal band to move onshore near MRY by 00Z and into central California
by 06Z...when strongest dynamics move into the Sierra. QPF amounts from
0.25 in near SFO dropping off as you go farther south.
Stronger dynamics arrive tonight as cold air pool moves into the central
coast. Atmosphere destabilizes and isolated thunderstorms possible.
Locally heavier showers along mountain areas with orographic
enhancement.
Negatively tilted splitting upper trof to move onshore Wednesday for a
showery day with isolated thundersotrms and noticably cooler. Locally
heavier showers are again possible over mountains and other
orographically enhanced areas. The bulk of the energy with this system
remains off the Washington coast while southern energy moves into
Southern California late Wednesday.
Ridge over the area Thursday for a break while next system approaches.
Energy from this phases with northern portion of old system by 12Z
Thursday. This system forecast to move down the coast through
Friday...though models now suggesting it will remain offshore. Showers
in the bay area Friday. QPF amounts highly dependant on exact track of
this feasture. Mountain areas more likely to receive heavier amounts.
Strong jetogenists off the Northern California coast with H8 winds 55-60
kts as surge of cold air reinforces the old low off the Washington coast
Thursday however.
European...MRF and NOGAPS all dig this down the coast into Friday wioth
varying tracks and speeds. Canadian hangs low back along the Northern
coast. This solution not likely due to prograsssive nature of the
lkarge scale flow. Ridge builds into California from the North and West
Saturday and Sunday...with a weaker system forecast to drop down back
side of Eastern Pacific ridge Monday.
... Steve Goldstein NWS Reno
Status |
Forecast Discussion |
Aircraft Status |
Flight Plan |
Soundings Status |
Special Notes
Aircraft Status |
January 25 (PST) | Next possible flight TBA. |
January 24 (PST) | No super IOP. No flight. |
January 23 1200 (PST) | P3 take off. |
January 23 (PST) | Flight planned for 1200 (PST) with storm surveillance and microphysical study emphasis |
Status |
Forecast Discussion |
Aircraft Status |
Flight Plan |
Soundings Status |
Special Notes
Soundings Status |
23 January (UTC) |
Bodega Bay | Special soundings beginning as early as 16 Z. |
Cazadero | Soundings planned for ~23 Z. |
Oakland | Special soundings requested every three hours starting 12 Z. |
Reno | No soundings. |
24 January (UTC) |
Bodega Bay | Soundings continuing through event. |
Cazadero | Soundings continuing through event. |
Oakland | Special soundings continuing through 12 Z. |
Reno | No soundings. |
Status |
Forecast Discussion |
Aircraft Status |
Flight Plan |
Soundings Status |
Special Notes
|