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AIM 

6/17/21 

for operating in icing conditions. Flying into areas 
of icing or weather below minimums could have 
disastrous results. 

2.  VFR Flight Not Recommended. 

When 

VFR flight is proposed and sky conditions or 
visibilities are present or forecast, surface or aloft, 
that, in the briefer’s judgment, would make flight 
under VFR doubtful, the briefer will describe the 
conditions, describe the affected locations, and use 
the phrase 

“VFR flight not recommended.”

 This 

recommendation is advisory in nature. The final 
decision as to whether the flight can be conducted 
safely rests solely with the pilot. Upon receiving a 

VFR flight not recommended

” statement, the 

non

IFR rated pilot will need to make a “go or no go” 

decision. This decision should be based on weighing 
the current and forecast weather conditions against 
the pilot’s experience and ratings. The aircraft’s 
equipment, capabilities and limitations should also 
be considered. 

NOTE

 

Pilots flying into areas of minimal VFR weather could 
encounter unforecasted lowering conditions that place the 
aircraft outside the pilot’s ratings and experience level. 
This could result in spatial disorientation and/or loss of 
control of the aircraft. 

3.  Synopsis. 

A brief statement describing the 

type, location and movement of weather systems 
and/or air masses which might affect the proposed 
flight. 

NOTE

 

These first 3 elements of a briefing may be combined in any 
order when the briefer believes it will help to more clearly 
describe conditions. 

4.  Current Conditions. 

Reported weather 

conditions applicable to the flight will be summarized 
from all available sources; e.g., METARs/ SPECIs, 
PIREPs, RAREPs. This element will be omitted if the 
proposed time of departure is beyond 2 hours, unless 
the information is specifically requested by the pilot. 

5.  En Route Forecast. 

Forecast en route 

conditions for the proposed route are summarized in 
logical order; i.e., departure/climbout, en route, and 
descent. (Heights are MSL, unless the contractions 
“AGL” or “CIG” are denoted indicating that heights 
are above ground.) 

6.  Destination Forecast. 

The destination fore-

cast for the planned ETA. Any significant changes 

within 1 hour before and after the planned arrival are 
included. 

7.  Winds Aloft. 

Forecast winds aloft will be 

provided using degrees of the compass. The briefer 
will interpolate wind directions and speeds between 
levels and stations as necessary to provide expected 
conditions at planned altitudes. (Heights are MSL.) 
Temperature information will be provided on request. 

8.  Notices to Airmen (NOTAMs). 

(a) 

Available NOTAM (D) information perti-

nent to the proposed flight, including special use 
airspace (SUA) NOTAMs for restricted areas, aerial 
refueling, and night vision goggles (NVG). 

NOTE

 

Other SUA NOTAMs (D), such as military operations 
area (MOA), military training route (MTR), and warning 
area NOTAMs, are considered “upon request” briefing 
items as indicated in paragraph 7

1

4b10(a). 

(b) 

Prohibited Areas P

40, P

49, P

56, 

and the special flight rules area (SFRA) for 
Washington, DC. 

(c) 

FSS briefers do not provide FDC NOTAM 

information for special instrument approach proce-
dures unless specifically asked. Pilots authorized by 
the FAA to use special instrument approach 
procedures must specifically request FDC NOTAM 
information for these procedures. 

NOTE

 

1. 

NOTAM information may be combined with current 

conditions when the briefer believes it is logical to do so. 

2. 

Airway NOTAMs, procedural NOTAMs, and NOTAMs 

that are general in nature and not tied to a specific 
airport/facility (for example, flight advisories and 
restrictions, open duration special security instructions, 
and special flight rules areas) are briefed solely by pilot 
request. For complete flight information, pilots are urged 
to review the Domestic Notices and International Notices 
found in the External Links section of the Federal NOTAM 
System (FNS) NOTAM Search System and the Chart 
Supplement U.S. In addition to obtaining a briefing. 

9.  ATC Delays. 

Any known ATC delays and 

flow control advisories which might affect the 
proposed flight. 

10.  Pilots may obtain the following from 

flight service station briefers upon request: 

(a) 

Information on SUA and SUA

related 

airspace, except those listed in paragraph 7

1

4b8. 

7

1

Meteorology