met brief for sun feb 23 22 feb 10 am rennie selkirk with lenny pfister and lynn harvey
DESCRIPTION
Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey. Upper levels continue to moisten from disturbance near Chuuk sounding less stable though expect CAPE to decrease Feel Andersen TAF too pessimistic. Current IR: 1832 UT 21 Feb. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/1.jpg)
Met brief for Sun Feb 2322 Feb 10 AM
Rennie Selkirk with Lenny Pfister and Lynn Harvey
• Upper levels continue to moisten from disturbance near Chuuk• sounding less stable though expect CAPE to decrease• Feel Andersen TAF too pessimistic
wind cloud cover (base) precip
Sun takeoff3 AM (2215) E015
SCT020SCT180
Cirrus 300isolated TS CAPE
decreasing
midflight 10 AM – 3 PM
- isolated TS in UA zone - current trop T ~-85 (188K) @ 53 kft - expect trop to move up but similar to slightly colder
Landing (14-18 hrs)
5-9 PM (2307-11)ENE015 SCT020
isolated TSSlt chc thndr
![Page 2: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/2.jpg)
Current IR: 1832 UT 21 Feb
Line of convection formed in Eq zone, from Chuuk to SSE
![Page 3: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/3.jpg)
Current WV: 1932 UT 21 Feb
Guam remains under
![Page 4: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/4.jpg)
Big change in PGAC sounding last two days
MOISTER, LESS STABLE Precip. Water : 34 to 49 mm Lifted index = -1.35 (unstable) CAPE = 1385
Thu AM
Fri PM
![Page 5: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/5.jpg)
GFS surface fcststakeoff / landing
22 Feb 12 UT (T-3hr) 23 Feb 12 UT (10 PM)
Line of convection formed in Eq zone, from Chuuk to SSE
![Page 6: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/6.jpg)
Ceiling: from GFS 850 hPa fcsts
22 Feb 12 UT (T-3hr) 23 Feb 12 UT (10 PM)
Guam is in relative dry slot => ceilings not as bad as in TAF
![Page 7: Met brief for Sun Feb 23 22 Feb 10 AM Rennie Selkirk with Lenny Pfister and Lynn Harvey](https://reader035.vdocuments.site/reader035/viewer/2022062315/56816291550346895dd2ff21/html5/thumbnails/7.jpg)
Mid-trop moisture: 500 hPa RHForecasts drying out
22 Feb 12 UT (T-3hr) 23 Feb 12 UT (10 PM)
Guam is in relative dry slot => ceilings not as bad as in TAF