1-34
CHAPTER 1
WEATHER & WATER CONDITIONS
Before a boating outing check the weather conditions. As we all know
the weather can change rapidly in many parts of the country. It does
so sometimes without being predicted. NOAA weather radio reports
are continuously available on designated frequencies installed on VHF
radios and various handhelds. Also, many local radio stations carry
weather reports .
Cloud Formations
Clouds indicate the type
of current weather and
upcoming changes in the
weather. Knowing the
type of cloud formations
can assist you in
choosing the appropriate
boating day or if already
on the water will help
you understand any
upcoming weather
changes
Flat clouds (stratus)
normally indicate stable
air. Cumulus clouds
indicate unstable air.
Many times a “cottonball” or cumulus cloud builds vertical height in
the afternoon and the result is a thunderstorm with increased winds
and waves; sometimes these storms are quite violent. You can find
additional information on weather (meteorology) at your local library.
20,000 Ft.
6,500 Ft.
HIGH CLOUDS
MIDDLE CLOUDS
LOW CLOUDS
catspaw
nibostratus
stratus
cumulus
stratocumulus
cumulonimbus
(thunderstorm)
cirrus
cirrostratus
cirrocumulus
altostratus
altocumulus
1-34
CHAPTER 1
WEATHER & WATER CONDITIONS
Before a boating outing check the weather conditions. As we all know
the weather can change rapidly in many parts of the country. It does
so sometimes without being predicted. NOAA weather radio reports
are continuously available on designated frequencies installed on VHF
radios and various handhelds. Also, many local radio stations carry
weather reports .
Cloud Formations
Clouds indicate the type
of current weather and
upcoming changes in the
weather. Knowing the
type of cloud formations
can assist you in
choosing the appropriate
boating day or if already
on the water will help
you understand any
upcoming weather
changes
Flat clouds (stratus)
normally indicate stable
air. Cumulus clouds
indicate unstable air.
Many times a “cottonball” or cumulus cloud builds vertical height in
the afternoon and the result is a thunderstorm with increased winds
and waves; sometimes these storms are quite violent. You can find
additional information on weather (meteorology) at your local library.
20,000 Ft.
6,500 Ft.
HIGH CLOUDS
MIDDLE CLOUDS
LOW CLOUDS
catspaw
nibostratus
stratus
cumulus
stratocumulus
cumulonimbus
(thunderstorm)
cirrus
cirrostratus
cirrocumulus
altostratus
altocumulus
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