Eastern Range Operation Forecast – STS-100 – 16 Apr 2001

Op Number: F4289

Issued: 16 Apr 01/0700 EDT

Valid: 19 Apr 01/1835-1845 UTC (19/1435-1445 EDT)

45 Weather Squadron web site:
http://www.patrick.af.mil/45OG/45WS/ws1.htm

Vehicle/Payload: STS-100 (Endeavour)/ISS-09-6A

Location: CX 39A

Launch Weather Officer: Ed Priselac

Synoptic Surface high pressure over the southeast US will create
Discussion: easterly surface winds. Upper ridge will bring dry, stable
conditions aloft.

Clouds      Coverage          Bases (feet)     Tops (feet)

CUMULUS     3/8 SCATTERED     4000             7500

CIRRUS      5/8 BROKEN        25000            28000

Visibility: 7 mi.

Wind: 05 010 P 15 kt (60 foot pad winds)

Temperature: 72 F RH: 43% Dewpoint: 48 F

Weather: Nil

Probability of KSC weather prohibiting launch: 10%

Probability of KSC weather prohibiting Tanking: 0%

Primary concern(s): RTLS crosswinds

[RTLS = Return To Launch Site, the first emergency
abort mode after launch.]

Probability of KSC weather prohibiting launch for 24 hour delay: 10%

Probability of KSC weather prohibiting Tanking: 0%

Primary concern(s): Flight through cumulus clouds

Probability of KSC weather prohibiting launch for 48 hour delay: 10%

Probability of KSC weather prohibiting Tanking: 0%

Primary concern(s): Flight through cumulus clouds

Sunrise: 19 Apr 0654 EDT – Moonrise: 19 Apr 0418 EDT – Illumination: 23%

Sunset: 19 Apr 1951 EDT – Moonset: 19 Apr 1530 EDT

Next Forecast will be issued: 17 Apr 0700 EDT

[Other STS-100 Launch Support Products from 45 Weather Squadron are
available at http://www.patrick.af.mil/45OG/45ws/ddms.htm .]