Weather Plan CJTF SEVEN No. 3-53 (2) Mission (a) Obtain inflight weather observations in accordance with current procedures along tracks and at times requested by the Task For«e Weather Central. (cz) Conduct radiological safety tracking missions. (c) Conduct typhoon reconnaissance flights. (4) Conduct post-shot heavy nuclide radioactive sampling Mm. 3$120ns. (3) Requirements (a) Possess a capability to perform the following missions for an on-site operational period of approximately 100 days: 1. Two (2) weather missions each day of approximately twelve (12) hours duration, commencing on first shot minus twenty (20) days and continuing for the duration of the project. 2. Three (3) weather missions each day of approximatel: twelve (12) hours duration, commencing on first shot minus four Cy days and terminating on D-l day or as otherwise specified by CJIF SEVEN, 3. Post-shot missions in connection with radiological safety for forty-eight (48) hours starting at H/6 hours, scheduled specifically for cloud tracking purposes. Certain of these missions will satisfy a portion of the daily weather reconnaissance require- ment. 4. One heavy nuclide sampling mission for each shot, approximately three (3) hours duration to penetrate the radioactive cloud at H/l hour. (b) Commencing on first shot minus twenty (20) days, assume typhoon reconnaissance responsibility in the area bounded by the Equator, latitude 25°N, the meridian of 180° and longitude of 157° 31°E. d. The Task Force Weather Central will coordinate this effort. Aerological Units Afloat (1) The USS ESTES will accommodate the Task Force Weather Cen- tral during the BIKINI phase of the operation. Command ship aerological personnel will augment and be assigned to duty in the Task Force Weather Central both ashore and afloat. These aerological personnel will be under the direction and control of the weather central commander. (2) The USS ESTES will make normal hourly surface observations only; the USS CURTISS and USS BAIROKO will possess the capability of taking hourly surface and twice daily upper air soundings (rawinsondes). The aerological complement of these ships will be ex-~ pected to make special weather observations when requested by CJIF SEVEN. All observations will be taken in accordance with current procedures and expeditiously transmitted to the Task Force Weather Central. e. Anti-Submarine Patrol Aircraft. M3 Patrol aircraft (P2V) will