N49RF HRD GPS Dropwindsonde Scientist Log Storm Ophelia Dropwindsonde Scientists John Kaplan, Sharan Majumdar -------------------------- -------------------------------------------------- Flight ID 050910N Flight Director Tom Shepherd Takeoff from MACDILL at 175619 UTC ---------------------- --------------------------------------------- ---------- ---------- Mission ID 1316A OPHELIA AVAPS Operators Jeff Smith/Dale Carpenter Recovery at MACDILL at 0205 UTC --------------------- --------------------------------------------- ---------- ---------- +----------------------------------------------------------------------------------------------------------------------------------+ | Drop Sonde Time Lat Lon Surface Wind closet DLM Comments | | # ID # (UTC) (°N) (°W) Pressure to surface wind | | (mb) dir/spd hgt (kt) | | (kt) (m) (RH heating cycles except as noted) | +----------------------------------------------------------------------------------------------------------------------------------+ | 1 003135289 183958 31.03 80.06 1014.8 356° 24 8 10° 16 Heaters off; late winds 64 s | | 2 002615305 190502 33.63 77.89 1013.3 36° 33 5 40° 32 50% cirrus below | | 3 002615306 192641 32.83 74.81 ------ -------------- -------- 100% cirrus below; dropped early to avoid | | convection; PTH failed below 650 mb--winds continue | | 3A 002615332 193920 34.30 74.20 1014.6 74° 27 5 170° 11 100% cirrus below | | 4 003115152 194837 35.01 73.31 ------ -------------- 225° 11 PTH telemetry sporadic and and no GPS signal/winds | | below 900 mb; set heights missing | | 5 003115133 200232 35.02 70.99 1018.2 70° 10 5 235° 19 Telemetry dropouts 710-720, 792-805, and 810-833 mb | | 6 002525274 201604 36.00 69.00 1018 23° 10 8 265° 25 | | 7 003135194 202903 36.91 67.03 1019.0 16° 12 8 275° 31 Late winds 63 s | | 8 003135285 204509 35.02 66.09 1017.5 350° 11 8 270° 31 | | 9 002638041 210230 33.97 67.96 1017.7 81° 04 7 255° 23 Winds missing 37-57 s | | 10 002158021 211859 32.00 68.00 1017.0 83° 07 8 225° 15 | | 11 003115510 213515 30.06 67.92 1017.4 207° 07 8 215° 19 | | 12 003115184 214850 29.93 66.07 1017.8 240° 04 8 225° 19 | | 13 002615346 220537 28.06 66.08 1018.0 214° 03 8 215° 20 Large PTH telemetry and GPS signal/winds dropouts | | 770-933 mb | | 14 003135217 221938 27.93 67.94 1017.0 155° 03 5 193° 23 | | 15 002615350 223705 25.99 68.01 1017.4 -------------- 195° 29 No winds 450-637 mb and below 841 mb | | 16 002615304 225603 24.16 69.02 ------ -------------- -------- Intermittent winds; last few records of sonde data | | may be missing due to early termination by AVAPS | | operator | | 16A 002158085 225812 24.39 69.18 1016.1 117° 12 8 185° 21 No winds between 220-310 s and 390-570 s | | 17 003115269 231232 26.01 69.99 ------ -------------- -------- Winds gaps 290-313 mb and 393-865 mb; heaters off | | 17A 002638106 232022 26.95 70.06 1017.2 51° 07 8 195° 18 No winds 620-690 s (~700-800 mb) | | 18 002648023 232853 28.00 70.00 ------ -------------- -------- Bad T and RH above 387 mb | | 18A 002638052 232935 28.09 70.00 1015.2 209° 06 8 185° 17 Heaters off | | 19 003115482 234557 30.07 70.00 ------ -------------- 205° 19 No PTH or winds below 900 mb; heaters off | | 20 003115151 000205 31.99 70.05 1016.4 143° 22 7 205° 15 No PTH or winds 980-1005 mb | | 21 002638117 001831 32.88 71.94 ------ -------------- 215° 22 No PTH data below ~870 mb--winds continue below; | | poor telemetry 795-834 mb | | 22 010715211 003341 31.05 72.09 1013.1 159° 27 9 200° 22 | | 23 002525224 004749 30.94 74.01 1008.2 174° 29 8 210° 33 Telemetry dropouts 770-798 mb and 824-835 mb | | 24 002615347 010221 29.24 74.64 1008.6 228° 22 41 240° 23 Occasional brief telemetry dropouts | | 25 002638112 011542 28.17 76.14 ------ -------------- -------- Winds but not PTH telemetry above 482 mb | | 25A 002638105 011710 28.15 76.34 1013.2 259° 16 7 265° 17 Weak telemetry and sporadic winds 600-690 mb | | 26 002615555 012846 28.15 77.98 1014.0 310° 11 4 285° 13 | +----------------------------------------------------------------------------------------------------------------------------------+