 "Weather By Giannetta" |
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| "Weather By Giannetta" |
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"Charles A. Giannetta"
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"M"
Macroburst: A sudden downburst of wind that affects an area on the ground that is 2.5 miles (4.0 km) or longer.
Mare's Tail: A name given to wispy cirrus clouds.
MB: Millibar.
Microclimate: Climte in a very small area such as a small back yard, garden.,
Mist: A term used for fog and drizzle.
Mixing Ratio:The amount of moisture the atmosphere is holding at a given temperature.
The portion of air pressure exerted by the water vapor content of air. Expressed in
"Grams" of water vapor per "Kilogram" of dry air also called: "Mixing Ratio".
"Example" Mixing Ratio = 10
----- .50 X 100 = Relative Humidity = 50%
Saturation Mixing Ratio = 20
Monsoon Dry Monsoon Wet
Moon: My Article.
© 1998 - 2013 Charles A. Giannetta
Mackerel Clouds: High altocumulus clouds which appear to look like fish scales.
Magnetic Variation: The angle variation between magnetic north and true north.
Mammatus Cloud: A puffy ominous looking but harmless cloud which forms underneath the cloudbase from decending air.
Marginal VFR Weather: Ceilings greater than or equal to1,000 ft. to less than or equal to 3,000 ft. and/or
visibility greater than or equal to 3 to less than or equal to 5 miles.
Maritime Tropical Air Mass:Maritime Tropical Air Mass: "MT": A warm & humid air mass wich forms over the North Pacific & Atlantic Oceans.
Maximum Temperature: The highest temperature during a specific period.
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MCC Mesoscale Convective Complex weather systems.
Mean Yearly Temperature: The average temperature for the year.
Measured Ceiling: The height of the base of the clouds observed and measured with a ceiling light.
Mercurial Barometer:
Meridional Flow: North to south or south to north movement of air masses producing more active weather.
METAR: The international code for avaition weather observations.
Meteorologist: One who studies meteorology.
Meteorology:The study of the Earth's atmosphere and its processes.
Mesoscale Weather Systems: Thunderstorms: Sea & Land Breezes.
MIC: Meteorologist In Charge of a weather office.
Microburst: A sudden downburst of wind that affects an area on the ground that is 2.5 miles (4.0 km) or shorter.
Microscale Weather Systems: Thornadoes: Waterspouts:
Microwave: Electromagnetic radiation: Wavelengths between infrared and radio waves.
Millibar: A unit of measure of the atmosphere's pressure: 1000 dynes per square centimeter. Used for reporting pressure on a surface weather map.
Minimum Temperature: The lowest temperature reached during a specific time.
Moderate Risk Of Thunderstorms: When severe thunderstoms area expected in an area 5 to 10 percent.
Moist Adiabatic Lapse Rate: When air rises at 3.0 Deg F., 1.5 Deg. C. per 1,000 feet.
Monsoon:A change in wind direction.
MP: Designated letters for a Maritime Polar Air Mass.
MT: Designated letters for a Maritime Tropical Air Mass.
Mt. Pinatuba: In 1991 Mt. Pinatuba located in the Phillipipens eruption was high in sulfur. Helped to lower Earth's temperature by 1 deg. F.
Mt. St. Helens: Mt. St. Helens eruption in 1980 was low in sulfur.
Mt. Washington: In New Hempshire. 6,288 ft. above sea level.
Mt. Washington: Wind speed in April 1934, 239 mph.
Monthly Climatological Report: Climatological weather data compiled for the month.
Mostly Clear: When the average sky cover is 1/8 to 2/8 cloud cover.
Mostly Cloudy: When the sky is covered by 50% but not completely..
Mostly Sunny: When the average sky cover is 1/8 to 2/8 cloud cover cover during daylight hours..
Mountain Breeze: A downard flow of cool air which developes at night in mountain valleys.
Mountain Wave: Clouds which remain stationary downwind of mountains
MSC: Mesoscale Convective System.
Muggy: Very warm and humid.
Multicell Thunderstorms: Clusters of thunderstorms.
MVFR: "Marginal Visual Flight Rules". In aviation when ceiling is between 1,000 and 3,000 feet and/or 3 to 5 miles visibility.
The "Monarch Butterfly"
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