weather ___________= the condition of the _____________at a particular _______and _______ weather...
TRANSCRIPT
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Weather and Weather Prediction Notes
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Weather___________= the condition of the
_____________at a particular _______and _______
Weather ___________= a _____________of ___________weather conditions over the next _________days
Weather
atmosphere tim
e
place
Forecast
prediction futur
e 3 to 5
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Weather Station ModelDiagram outline of station model: (pg. 105) _____ __________ _____________. __________ ____________
Temp
Pressure
Weather Cond
Dew Point
Precip amt
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Surface station modelSurface observation data station model: -located on map where _________was
locatedEX.
data
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Cloud CoverCloud cover = shade in circleEX.
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Wind Direction_________direction = ______in ___________wind
is coming _________EX.
Wind line direction FRO
M
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Wind speedWind speed =Ex.
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Pressure- measured in __________(mbar)
# is _________than 500, put a ____in front and a ___________one place from the right Ex. 802….980.2
# is ________than 500, put a _____in and a decimal one place from the _________ Ex. 347…..1034.7
EXAMPLES
millibars
greater
9
decimal
less 10 right
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________________= measure of how _______or _________something is
_______Point = the _____________air must ________to be completely____________
Saturated: reached moisture compacity
Temperature
hot
cold
Dew temperature cool saturat
ed
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ExamplesTurn to page 105
Your turn
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Fronts
Fronts = leading _______of an ______mass/_________
edge
air boundary
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Warm FrontWarm = _______air replacing __________air -weather = (indicated________________) a. ________clouds –_______, feathery, found
at ________altitudes b. _________-clouds that form in __________ -nimbostratus c. steady _____________________ d. _____________temp
warm cooler snow/
raincirrus
thinhigh
stratus layers
precipitationincreased
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Cold Front________= cool air ____________warmer airweather =____________clouds- ___________white clouds,
tend to have _________bottoms -cumulonimbus ________showers___________temp
Cold replacing
cumulous
puffy
flat
brief
decreased
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Occluded Front__________= (type of cold front) cold front
____________up with warm front -“_________” warm air mass from
___________ -_________weather a. high wind d. tornado b. hail e.
heavy rain c. lightening
Occluded catching cuts
offgroundsevere
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Stationary front___________= _______air masses can not
_______other ______of way -weather = _________rain until moves out
Stationary
two
push out
steady
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Frontal Weather ..
Continental tropical (cT) = warm, dry —Mexico, SW US
Continental polar (cP) = cold, dry -- Canada
Air mass = a large amount of air that takes on the temperature and humidity of the area it forms over
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Frontal Weather
.
Maritime tropical (mT) = warm, moist – S. Pacific, S. Atlantic
Maritime polar (mP) = cold, moist – N. Pacific, N. Atlantic
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Frontal Weather.
- .
Cyclone = low pressure area containing rising warm air
-winds rotate counter clockwise in Northern Hemisphere
Anticyclones = high pressure area-cool, dry air rotates clockwise in N.
hemisphere
tornados, hurricanes
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Isobar
-
Iso= same
Isobar = lines that connect points of equal air pressure
closer the line, the stronger the wind
Isobars closer together = higher winds
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Isobar Map
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Isotherm
- -
Isotherm = lines that connect points of equal temperature
use color for each decade of #’s
reds are warm / blues are cooler
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Isotherm Map
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Predicting WeatherGenerally-
-
-
-US weather moves from W to E because US is in the “westerlies” global wind pattern
Low pressure spins counter clockwise
High pressure spins clockwise
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Predicting Weather
-
-
-
-High pressure = clear weather
Low pressure = cloudy/stormy weather
Significant temp change (decrease) and significant pressure change down = may cause severe weather
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Weather Instruments-
-
-
-
-
Thermometer – air temp
-Anemometer – wind speed
Barometer – air pressure
Psychrometer – humidity
Rain gauge – rain fall amount
Wind sock/vane – wind direction