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METAR
KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Type of report
METAR - Hourly Observation
SPECI - Special, unscheduled report
METAR
KOKC
011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Station Identifier
METAR KOKC
011955Z
AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Date and Time of Report
011955Z - 01 Day, 1955Z time
METAR KOKC 011955Z
AUTO
22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Report Modifier
(None) - manual station or manual input at automated station
AUTO - Totally Automated Stations
- AO1 without a precipitation discriminator
- AO2 with a precipitation discriminator
COR - Corrected METAR to replace previous report
METAR KOKC 011955Z AUTO
22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Wind
22015G25KT - 220° 15 kts Gust 25 kts
180V250 - 180° varying 250°
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM
R17L/2600FT +TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Visibility
3/4SM - 3/4 Statute Miles
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM
R17L/2600FT
+TRSA BR OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Runway Visual Range
R17L/2600FT - Runway 17L 2600 Feet
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT
+TRSA BR
OVC010CB 18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Present Weather
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR
OVC010CB
18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Sky Condition
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB
18/16
A2992 RMK A02 TSB25 TS OHD MOV E SLP132
Temperature/Dewpoint
Degrees Celsius
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992
RMK A02 TSB25 TS OHD MOV E SLP132
Altimeter
2992 = 29.92" HG
METAR KOKC 011955Z AUTO 22015G25KT 180V250
3/4SM R17L/2600FT +TRSA BR OVC010CB 18/16
A2992
RMK A02 TSB25 TS OHD MOV E SLP132
Remark
What is a Pirep?
PI
lot
REP
ort
Pilots are encouraged to make reports of unexpected weather conditions
What is a TAF?
Terminal Aerodrome Forecast
An estimate of what the weather will be in the future at a specific airport
How long are TAFs valid?
24 hours
How often are TAFs scheduled?
4 times a day
What is the only type of cloud included in TAF?
Cumulonimbu (CB)
What is an FA?
Aviation Area Forecast
What information do Aviation Area Forecasts provide?
covers general weather conditions over a wide region
good info for en route weather
What does an Aviation Area Forecast (FA) cover?
Six regions for the 48 Contiguous States
What is an FD?
Winds and Temperature Aloft Forecast
What information does a Winds and Temperature Aloft Forecast (FD) Provide?
Provides an estimate of:
wind direction in relation to true north
wind speed in knots
Temperature in Celsius
What is a WH?
Hurricane Advisory
What information does a Hurricane Advisory (WH) provide?
When a hurricane is at least 300 NM offshore but threatens a coast line
What is a AC?
Convective Outlook
What does a Convective Outlook (AC) provide?
A national forecast of thunderstorm activity covering two 24 hour periods (day 1 & day 2)
What is WW?
Severe Weather Watch Bulletin
What do Severe Weather Watch Bulletins (WW) provide?
Defines areas of possible sever thunderstorms or tornadoes.
Preliminary message called alert severe weather watch (AWW) is sent.
What is an AWW?
Alert Severe Weather Watch
What is an Alert Severe Weather Watch (AWW)?
Preliminary message for Severe weather watch bulletin (WW)
What is an AIRMET (WA)?
Airman's Meteorological Information
Warn of weather conditions which are particularly hazardous to small, single-engine aircraft
For all aircraft
When are AIRMETs issued?
Every 6 hours with amendments as necessary
What is AIRMET Tango?
Light to moderate turbulence.
Surface winds >= 20kts
What is AIRMET Sierra?
Mountain obscuration or IFR conditions
Vis < 3 miles
Ceiling <1,000 ft
affecting > 50% of area
What is AIRMET Zulu?
light to moderate icing
freezing levels
What are SIGMET (WS)?
Significant Meteorological information
Warn of weather hazards which concern all aircraft
Severe Icing
Turbulence
Clear Air Turbulence (CAT)
Dust and Sandstorms
Volcanic Ash
What are Convective SIGMETs (WST)?
Warn of weather hazards including:
tornadoes
embedded Thunderstorms
hail 3/4 inch or greater in diameter
What areas are Convective SIGMETs issued for?
Eastern (E) US
Central (C) US
Western (W) US
What are the Official Reports/Briefings?
1-800-WX-Brief Telephone brief and file flight plan
DUATS
: Direct User Access Terminal. Online service to allow users to receive weather and file flight plans.
What are two types of automated weather observation systems in use?
Automated Weather Observing System (AWOS)
Automated Surface Observing System (ASOS)
What is a CWA?
Center Weather Advisory
What does Center Weather Advisory (CWA) provide?
Unscheduled weather advisory to alert pilots of existing or anticipated adverse weather conditions within the next 2 hours
What is the dew point?
The temperature at which air is completely saturated.
What is a front?
boundary between 2 air masses.
Describe a warm front
Warm air is replacing cold air.
Poor visibility
Moves at slow speed.
Slope of a warm front is very gradual and may extend up over cool air for several hundred miles ahead of the front.
Describe a cold front
Cold air is moving to displace warmer air
Dense and stable air moves along surface and forces less dense, warm air upward.
Showers and poor visibility
Describe a stationary front
No movement
Opposing forces of two masses are relatively balanced
Describe an Occluded front
Cold fronts are usually fast moving ad often catch up to and merge w/ a slower moving warm front
When cold and warm fronts merge they create an occluded front (temp in each front influences which type of front and weather are created.
How do Cold front occlusions develop?
Fast-moving cold front is colder than the air ahead of the slow-moving warm front
How is a warm front occlusion develop?
The air ahead of the slow-moving warm front is colder than the air within the fast-moving
What conditions are required for thunderstorms to form?
Unstable conditions
a lifting force
high moisture levels
What are the stages and their characteristics of thunderstorms?
Cumulus - lifting action initiates the vertical movement of air, continuous updrafts
Mature - greatest intensity and precipitation begins
Dissipating - downdrafts that eventually weaken the storm
What often exist in cumulonimbus clouds?
Severe turbulence
lightning
hail
tornadoes
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Author
dundane
ID
321936
Card Set
Weather
Description
Weather
Updated
2016-07-17T01:49:15Z
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