IRFP-01
Metro Review
6. Synopsis and VFR Clouds/Weather section
a. Section contains an 18-hour synopsis, consisting of a 12-hour
specific forecast, followed by a 6-hour categorical outlook
giving a total forecast period of 18 hours
b. All or parts of the SYNOPSIS AND VFR CLOUDS/WEATHER
section may be delayed if the forecaster determines that
available information is inadequate to support a quality FA
product
c.
The following specific items, if applicable, should by included
for each 12-hour specific forecast in the SYNOPSIS AND VFR
CLOUDS/WEATHER section
(1) Sky condition (cloud height, amount, and tops) if bases are
at or below 18,000 ft MSL
(2) Surface visibilities and associated obstructions when
visibility is between 3 and 6 miles (if coverage is
3,000 square miles or greater)
(3) Weather (precipitation, including thunderstorms, fog, haze,
blowing dust, etc.), if it results in surface visibilities of
3 to 6 miles
(4) Thunderstorms, if expected to be more than isolated
(5) Surface wind if sustained winds of 20 kts or more
(a) Wind directions use an 8-point compass
(b) Gusts are reported if expected to be 10 kts over
sustained speed
7. OUTLOOK - 6-hour categorical forecast to follow 12-hour specific
clouds and weather forecasts
a. As a minimum “IFR,” “MVFR,” or “VFR”
b. If IFR or MVFR due to ceiling, use “CIG”
c.
If due to visibility, use standard weather and obstruction to
visibility symbols
d. VFR should stand alone except for wind (WND),
thunderstorms (TRW), and precipitation (without intensities)
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