Subj : Wx Terms (M)(6)
To : All
From : Daryl Stout
Date : Mon Aug 14 2017 07:24 am
Multiple Vortex Tornado
A tornado in which two or more condensation funnels or debris clouds are
present at the same time, often rotating about a common center or about
each other. Multiple-vortex tornadoes can be especially damaging.
Multipurpose Reservoir
In hydrologic terms, a reservoir constructed and equipped to provide
storage and release of water for two or more purposes such as flood
control, power development, navigation, irrigation, recreation,
pollution abatement, domestic water supply, etc.
Municipal Use of Water
In hydrologic terms, the various uses to which water is put to use
developed urban areas, including domestic use, industrial use, street
sprinkling, fire protection, etc.
Mushroom
Slang for a thunderstorm with a well-defined anvil rollover, and thus
having a visual appearance resembling a mushroom.
MVFR
Marginal Visual Flight Rules - in an aviation product, refers to the
general weather conditions pilots can expect at the surface. VFR stands
for Visual Flight Rules and MVFR means Minimum or Marginal Visual Flight
Rules. MVFR criteria means a ceiling between 1,000 and 3,000 feet
and/or 3 to 5 miles visibility.
MVS
Moves
MWD
On a buoy report, mean wave direction corresponding to energy of the
dominant period (DOMPD). The units are degrees from true North just like
wind direction.
MWS
Marine Weather Statement
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