The following are excerpts indigenous the Aeronautical details Manual (AIM). They administer a simple understanding the what species of pilot briefings are available and what to tell the briefer when requesting one.
You are watching: To update a previous weather briefing, a pilot should request
For flights in ~ Alaska, disregard all recommendations to En Route flight Advisory service (EFAS), likewise know as flight Watch. This company is not listed in Alaska.
5-1-1. Preflight Preparation
f. When requesting a preflight briefing, determine yourself together a pilot and administer the following:
1. Type of trip planned; e.g., VFR or IFR.
2. Aircraft"s number or pilot"s name.
3. Plane type.
4. Departure Airport.
5. Route of flight.
7. Flight altitude(s).
8. ETD and also ETE.
g. Prior to conducting a briefing, briefers are required to have the background information provided above so the they may tailor the briefing to the needs of the suggest flight. The objective is to interact a “picture” the meteorological and aeronautical information essential for the command of a safe and also efficient flight. Briefers usage all easily accessible weather and aeronautical details to summarize data applicable come the propose flight. They carry out not read weather reports and also forecasts verbatim uneven specifically asked for by the pilot. FSS briefers perform not provide FDC NOTAM information for unique instrument strategy procedures unless especially asked. Pilots authorized by the piersonforcongress.com come use special instrument approach procedures need to specifically inquiry FDC NOTAM details for this procedures. Pilots who receive the details electronically will receive NOTAMs for unique IAPs automatically.
Reference-AIM, Preflight Briefings, i 7-1-4, includes those item of a weather briefing that should be intended or requested.
7-1-4. Preflight Briefing
a. Flight company Stations (AFSSs/FSSs) room the primary resource for obtaining preflight briefings and inflight weather information. Flight business Specialists room qualified and certificated through the NWS as Pilot Weather Briefers. They are not authorized come make original forecasts, but are authorized come translate and also interpret obtainable forecasts and also reports directly into state describing the weather conditions which you deserve to expect follow me your flight route and also at her destination. Easily accessible aviation weather reports, forecasts and aviation weather charts are displayed at every AFSS/FSS, for pilot use. Pilots have to feel free to use these self briefing display screens where available, or to ask for a briefing or help from the specialist on duty. Three an easy types that preflight briefings are available to serve your certain needs. This are: standard Briefing, abbreviated Briefing, and also Outlook Briefing. You should specify to the briefer the form of briefing friend want, together with your suitable background information. This will allow the briefer come tailor the details to her intended flight. The complying with paragraphs explain the types of briefings accessible and the information detailed in each briefing.
Reference- AIM, Preflight Preparation, paragraph 5-1-1, because that items that are required.
b. Standard Briefing. You need to request a typical Briefing any kind of time you are planning a flight and you have not obtained a vault briefing or have actually not obtained preliminary information through mass circulation media; e.g., TIBS, TWEB (Alaska only), etc. Worldwide data may be inaccurate or incomplete. If you room planning a flight outside of U.S. Managed airspace, the briefer will advise friend to examine data as soon as handy after entering foreign airspace, unless you recommend that you have the international cautionary advisory. The briefer will automatically administer the following information in the succession listed, other than as noted, once it is applicable to her proposed flight.
1. Disadvantage Conditions. significant meteorological and/or aeronautical details that might influence the pilot to change or cancel the propose flight; for example, hazardous weather conditions, airport closures, air web traffic delays, etc. Pilots should be particularly alert for current or estimate weather that might reduce flight minimums below VFR or IFR conditions. Pilots should also be alert for any type of reported or estimate icing if the plane is no certified for operation in icing conditions. Flying into locations of icing or weather listed below minimums might have terrible results.
2. VFR flight Not Recommended. When VFR flight is proposed and sky conditions or visibilities are current or forecast, surface ar or aloft, that, in the briefer's judgment, would certainly make flight under VFR doubtful, the briefer will describe the conditions, describe the influenced locations, and use the expression "VFR flight not recommended." This reference is advisory in nature. The last decision as to whether the trip can be conducted safely rests exclusively with the pilot. ~ above receiving a "VFR flight not recommended" statement, the non-IFR rated pilot will need to make a "go or no go" decision. This decision need to be based upon weighing the current and forecast weather conditions against the pilot's experience and ratings. The aircraft's equipment, capabilities and also limitations should likewise be considered.
NOTE-Pilots flying into locations of minimal VFR weather could encounter unforecasted lowering conditions that location the aircraft outside the pilot's ratings and also experience level. This could an outcome in spatial disorientation and/or ns of control of the aircraft.
3. Synopsis. A brief statement relenten the type, location and movement of weather equipment and/or air masses which might impact the suggest flight.
Note-These very first 3 facets of a briefing might be linked in any kind of order when the briefer believes the will aid to more plainly describe conditions.
4. Present Conditions. Reported weather problems 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 exit is beyond 2 hours, uneven the information is specifically requested by the pilot.
5. En route Forecast. Forecast en route problems for the proposed route are summarized in logical order; i.e., departure/climbout, en route, and descent. (Heights space MSL, uneven the contractions "AGL" or "CIG" room denoted indicating the heights are over ground.)
6. Location Forecast. The destination forecast because that the to plan ETA. Any far-reaching changes in ~ 1 hour before and also after the planned arrival are included.
7. Winds Aloft. Forecast winds aloft will certainly be noted using degrees of the compass. The briefer will interpolate wind directions and speeds between levels and stations as necessary to provide expected problems at planned altitudes. (Heights are MSL.) Temperature info will be listed on request.
8. Notices to Airmen (NOTAMs).
(a) Available NOTAM (D) details pertinent come the suggest flight, consisting of special use airspace (SUA) NOTAMs for minimal areas, aerial refueling, and also night vision goggles (NVG).
NOTE- various other SUA NOTAMs (D), such as army operations area (MOA), military training course (MTR), and warning area NOTAMs, are thought about "upon request" briefing item as indicated in paragraph 7-1-4b10(a).
(b) Prohibited locations P-40, P-49, P-56, and the special trip rules area (SFRA) because that Washington, DC.
(c) FSS briefers carry out not carry out FDC NOTAM details for unique instrument strategy procedures unless especially asked. Pilots authorized by piersonforcongress.com to use one-of-a-kind instrument approach procedures must specifically request FDC NOTAM details for this procedures.
Note-NOTAM info may be combined with current conditions when the briefer believes the is logical to perform so.
Note-NOTAM (D) information and also FDC NOTAMs which have actually been published in the Notices come Airmen Publication are not consisted of in pilot briefings uneven a review of this publication is specifically asked for by the pilot. For complete flight details you are urged to evaluation the printed NOTAMs in the Notices to Airmen Publication and the A/FD in enhancement to obtaining a briefing.
9. ATC Delays. any known ATC delays and also flow regulate advisories which might impact the suggest flight.
10. Pilots may achieve the complying with from flight business station briefers top top request:
(a) Information on SUA and also SUA-related airspace, except those detailed in i 7-1-4b8.
NOTE-1. For the purpose of this paragraph, SUA and related airspace includes the following species of airspace: alarm area, military operations area (MOA), warning area, and also air traffic manage assigned airspace (ATCAA). MTR data has the following varieties of airspace: IFR training paths (IR), VFR training courses (VR), and slow training paths (SR).
2. Pilots are encouraged to request updated details from ATC facilities while in flight.
(b) A testimonial of the Notices come Airmen publication for pertinent NOTAMs and Special Notices.
(c) Approximate density altitude data.
(d) Information concerning such items together air web traffic services and also rules, customs/immigration procedures, ADIZ rules, search and also rescue, etc.
(e) LORAN-C NOTAMs, easily accessible military NOTAMs, and also runway friction measurement value NOTAMs.
(f) GPS RAIM ease of access for 1 hour before to 1 hour ~ ETA or a time mentioned by the pilot.
(g) Other aid as required.
c. Abbreviation Briefing. Request an abbreviation Briefing as soon as you need info to supplement mass disseminated data, update a previous briefing, or when you require only one or two specific items. Provide the briefer with suitable background information, the moment you received the previous information, and/or the certain items needed. Girlfriend should indicate the resource of the information currently received so the the briefer can limit the briefing to the information that you have not received, and/or appreciable changes in meteorological/aeronautical conditions because your previous briefing. Come the level possible, the briefer will carry out the details in the sequence displayed for a standard Briefing. If friend request only one or two certain items, the briefer will advise friend if adverse conditions are current or forecast. (Adverse problems contain both meteorological and/or aeronautical information.) Details ~ above these conditions will be noted at your request. International data may be inaccurate or incomplete. If you space planning a flight external of U.S. Controlled airspace, the briefer will certainly advise you to examine data as quickly as valuable after entering international airspace, unless you recommend that you have actually the international cautionary advisory.
d. Outlook Briefing. You have to request one Outlook Briefing whenever her proposed time of leave is six or much more hours from the moment of the briefing. The briefer will provide available forecast data applicable come the proposed flight. This type of briefing is provided for planning purposes only. Girlfriend should achieve a standard or abbreviation Briefing prior to departure in order to achieve such items as adverse conditions, present conditions, updated forecasts, winds aloft and NOTAMs, etc.
e. When filing a flight setup only, you will be inquiry if you require the latest details on adverse conditions pertinent come the route of flight.
f. Inflight Briefing. You are encouraged to achieve your preflight briefing by telephone or in person before departure. In those situations where you need to achieve a preflight briefing or an update to a previous briefing by radio, girlfriend should call the nearest AFSS/FSS to acquire this information. After interactions have to be established, advise the specialist of the form briefing you require and provide appropriate background information. You will certainly be detailed information as stated in the over paragraphs, depending upon the kind of briefing requested. In addition, the specialist will recommend shifting to the trip Watch frequency when conditions along the to plan route suggest that it would certainly be helpful to carry out so. Remember that weather conditions can readjust rapidly and also that a "go or no go" decision, as mentioned in i 7-1-4b2, have to be assessed at all phases of flight.
g. Following any briefing, feel complimentary to questioning for any kind of information that you or the briefer may have missed or room not understood. This way, the briefer is maybe to current the info in a reasonable sequence, and lessens the possibility of important items being overlooked.
7-1-8. Telephone information Briefing organization (TIBS)
a. TIBS, listed by automatically flight company stations (AFSSs) is a constant recording that meteorological and aeronautical information, easily accessible by telephone. Every AFSS gives at least four route and/or area briefings. In addition, airspace procedures and also special announcements (if applicable) worrying aviation interests may also be available. Depending upon user demand, other items may be provided; i.e., METAR observations, terminal aerodrome forecasts, wind/temperatures aloft forecasts, etc.
b. TIBS is not intended to substitute because that specialist-provided preflight briefings. It is, however, encourage for usage as a preliminary briefing, and often will be an useful in help you to make a “go or no go” decision.
c. TIBS is provided by automatic Flight service Stations (AFSSs) and also provides continuous telephone recordings the meteorological and/or aeronautical information. Special, TIBS offers area and/or course briefings, airspace procedures, and also special announcements (if applicable) worrying aviation interests.
d. Depending top top user demand, various other items may be provided; i.e., surface ar observations, terminal forecasts, winds/temperatures aloft forecasts, etc. A touch-tone™ telephone is vital to fully utilize the TIBS program.
e. Pilots are urged to avail themselves of this service. TIBS areas are discovered at AFSS sites and also can it is in accessed by usage of 1-800-WX short toll totally free number.
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7-1-9. Spelling, orthography Weather broadcast (TWEB) (Alaska Only)
Equipment is provided in Alaska through which meteorological and also aeronautical data are recorded on tapes and also broadcast repetitively over selected L/MF and also VOR facilities. Broadcasts are made from a series of individual tape recordings, and also changes, together they occur, are transcribed ~ above the tapes. The information noted varies relying on the kind equipment available. Generally, the broadcast has a an introduction of disadvantage conditions, surface ar weather observations, pilot weather reports, and also a thickness altitude explain (if applicable). In ~ the discretion that the transfer facility, recordings may likewise include a synopsis, winds aloft forecast, en route and also terminal estimate data, and also radar reports. At selected locations, telephone accessibility to the TWEB has actually been noted (TEL-TWEB). Telephone numbers for this business are uncovered in the supplement Alaska A/FD. These broadcasts room made obtainable primarily for preflight and also inflight planning, and as such, need to not be thought about as a substitute for specialist-provided preflight briefings.