Section 3. Radar Weather Report (SD/ROB)

9-3-1. GENERAL

a.Individual radar weather reports, identified as SD/ROB, are collected by the National Meteorological Center (NMC) Suitland, Maryland. These reports are entered by Weather Service Offices on the Radar Report and Warning Coordination (RAWARC) circuits. NMC also collects radar report bulletins from military reporting locations and Canada.

b.When normal entry is not possible, SD/ROB reports can be entered on Service A circuits upon request by NWS RAWARC entry stations.

9-3-2. SCHEDULE

Radar weather reports are transmitted on Service A by WMSC at H+56 to H+00 each hour. These reports are not scheduled transmissions but are given priority handling during this 4-minute time frame.

9-3-3. DISTRIBUTION

a.Radar weather reports are sent to WMSCR by NMC each hour for distribution. These reports are received on an unscheduled basis and can be expected to appear during any unscheduled distribution period.

b.Each individual WMSCR circuit receives a unique collection based upon their requirements. Circuit distribution lists are filed at circuit control facilities.