Mission Summary
20021014N1 Aircraft 49RF
Synoptic Surveillance flight
around Trop. Depr. #14 2002

Scientific Crew (49RF)
Sonde ScientistSim Aberson
Mission Plan :

The G-IV jet, with scientific crew of Sim Aberson, conducted an NHC-tasked synoptic surveillance mission around TD #14 at the nominal time of 00 UTC/October 14. Take-off time was at 1:30 PM EDT from MacDill AFB and landed at 10 PM EDT in MacDill AFB, FL.

Mission Summary Log :

Important information relayed to specialist JARVINEN at 01:45 UTC

1. Drop 5 had 29 kt at the surface, near Cayman Islands.

2. Pressures near Cuba about the same as satellite estimate of central pressure. Surface pressures of 1007 lower than advisory pressures.

3. Cirrus above 45,000 ft over center of depression. Never seen cirrus so high.

4. There is a 200 mb anticyclone just east of the center. There does not seem to be as much shear as expected. No sign of anticyclone at 250mb. The shear seems to be between 400 and 250mb.

5. Storm circulation extends to 400mb, maybe 300mb.

6. Storm circulation is rather large at surface, extending north of Yucatan.

7. Quite moist all around storm.

8. Weak DLM ridge to northeast, strong trough to west should pull storm northeastward.

9. Weak closed circulation at 500mb north of western tip of Cuba.

10. Cold front from surface to 850mb from mouth of the Mississippi SSWward. Only dry air seen is behind this front.

11. SATCOM worked


Log sheet of drops

PDF plots of drop data

Trop. Dep. #14
PLANNED mission drops
Aircraft: N49RF Takeoff: 14/1730Z Landed: 14/0200Z
DROP LOCATIONS
Drop # LAT
(d m)
LON
(d m)
TIME
(h:mm)
1 25 3084 000:22
2 23 3784 320:38
3 21 4585 050:54
4 21 0083 001:11
5 19 2480 171:37
6 19 3478 011:55
7 19 4575 452:13
8 17 1575 452:33
9 16 5578 012:51
10 16 3580 173:10
11 15 2583 003:34
12 16 1484 563:51
13 17 5786 044:07
14 20 0285 154:26
15 21 3086 454:42
16 22 3388 485:01
17 23 3790 525:19
18 24 4192 565:37
19 25 4595 005:56
20 28 1594 006:18
21 27 1091 406:38
22 26 0489 196:58
23 25 0087 007:18
24 26 5287 227:33
25 28 4587 457:49
26 28 1785 088:09


Trop.Dep. #14
PLANNED mission turns
Aircraft: N49RF Takeoff: 14/1730Z
Landing: 14/0200Z
TRACK DISTANCES
Drop # LAT
(d m)
LON
(d m)
RAD/AZM
(nm/dg)
LEG
(nm)
TOTAL
(nm)
TIME
(h:mm)
0MACDILL0.0.0:00
125 3084 00164.164.0:22
221 4585 06234.398.0:54
321 0083 00180/ 0130.527.1:11
419 2580 17180/60184.712.1:37
519 4575 45265.977.2:13
617 1575 45150.1127.2:33
716 3580 17180/120269.1396.3:10
815 2583 00155/180174.1570.3:34
916 1584 57155/225125.1695.3:51
1017 5786 05180/269122.1817.4:07
1120 0285 16180/315134.1951.4:26
1221 3086 45123.2074.4:42
1325 4595 00538.2612.5:56
1428 1594 00160.2772.6:18
1525 0087 00442.3215.7:18
1628 4587 45229.3444.7:49
17MACDILL299.3743.8:30


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