U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION

ORDER
JO 7110.10X
Effective Date:
April 3, 2014
 
     
Subject:  Flight Services
   Includes:  Change 1 effective 7/24/14

Section 9. Transcribed Weather Broadcast (TWEB)

9-9-1. GENERAL

The Transcribed Weather Broadcast (TWEB) and synopsis for selected routes are prepared by NWFOs and forwarded to the WMSC for distribution. All times are in UTC and listed by daylight/standard times. (See TBL 9-9-1.)

TBL 9-9-1
Transcribed Weather Broadcast/Synopsis

 

Issuance Times

Time Zones

daylight
standard

daylight
standard

daylight
standard

Central

0130/0230

0930/1030

1830/1930

Eastern

0030/0130

0830/0930

1730/1830

Mountain

0230/0330

1030/1130

1930/2030

Pacific

0330/0430

1130/1230

2030/2130

a. The morning and mid-day TWEB and synopsis will be valid for 12 hours. The evening TWEB and synopsis will be valid 18 hours with no outlook.

b. Eastern and Central TWEBs must not be entered prior to H+20 for hours 10, 17, and 22 UTC. Mountain and Pacific TWEBs must not be entered prior to H+20 for hours 11, 18, and 23 UTC.

9-9-2. CROSS-COUNTRY ROUTES

WMSC's storage contains a selection of combined individual route segments that defines cross-country routes. These routes are defined in AC 00-45. Section 4 defines the route segment and lists the number for each cross-country route.

 
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