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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
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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
Station Identifier
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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
- Date and Time of Report
- 011955Z - 01 Day, 1955Z time
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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
- 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
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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
- Wind
- 22015G25KT - 220° 15 kts Gust 25 kts
- 180V250 - 180° varying 250°
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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
- Visibility
- 3/4SM - 3/4 Statute Miles
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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
- Runway Visual Range
- R17L/2600FT - Runway 17L 2600 Feet
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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
Present Weather
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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
Sky Condition
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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
- Temperature/Dewpoint
- Degrees Celsius
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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
- Altimeter
- 2992 = 29.92" HG
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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
Remark
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What is a Pirep?
- PIlot REPort
- Pilots are encouraged to make reports of unexpected weather conditions
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What is a TAF?
- Terminal Aerodrome Forecast
- An estimate of what the weather will be in the future at a specific airport
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How long are TAFs valid?
24 hours
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How often are TAFs scheduled?
4 times a day
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What is the only type of cloud included in TAF?
Cumulonimbu (CB)
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What information do Aviation Area Forecasts provide?
- covers general weather conditions over a wide region
- good info for en route weather
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What does an Aviation Area Forecast (FA) cover?
Six regions for the 48 Contiguous States
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What is an FD?
- Winds and Temperature Aloft Forecast
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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
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What is a WH?
Hurricane Advisory
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What information does a Hurricane Advisory (WH) provide?
When a hurricane is at least 300 NM offshore but threatens a coast line
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What is a AC?
Convective Outlook
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What does a Convective Outlook (AC) provide?
A national forecast of thunderstorm activity covering two 24 hour periods (day 1 & day 2)
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What is WW?
Severe Weather Watch Bulletin
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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.
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What is an AWW?
Alert Severe Weather Watch
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What is an Alert Severe Weather Watch (AWW)?
Preliminary message for Severe weather watch bulletin (WW)
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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
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When are AIRMETs issued?
Every 6 hours with amendments as necessary
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What is AIRMET Tango?
- Light to moderate turbulence.
- Surface winds >= 20kts
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What is AIRMET Sierra?
- Mountain obscuration or IFR conditions
- Vis < 3 miles
- Ceiling <1,000 ft
- affecting > 50% of area
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What is AIRMET Zulu?
- light to moderate icing
- freezing levels
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What are SIGMET (WS)?
- Significant Meteorological informationWarn of weather hazards which concern all aircraft
- Severe Icing
- Turbulence
- Clear Air Turbulence (CAT)
- Dust and Sandstorms
- Volcanic Ash
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What are Convective SIGMETs (WST)?
- Warn of weather hazards including:
- tornadoes
- embedded Thunderstorms
- hail 3/4 inch or greater in diameter
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What areas are Convective SIGMETs issued for?
- Eastern (E) US
- Central (C) US
- Western (W) US
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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.
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What are two types of automated weather observation systems in use?
- Automated Weather Observing System (AWOS)
- Automated Surface Observing System (ASOS)
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What is a CWA?
Center Weather Advisory
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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
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What is the dew point?
The temperature at which air is completely saturated.
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What is a front?
boundary between 2 air masses.
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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.
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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
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Describe a stationary front
- No movement
- Opposing forces of two masses are relatively balanced
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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.
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How do Cold front occlusions develop?
Fast-moving cold front is colder than the air ahead of the slow-moving warm front
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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
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What conditions are required for thunderstorms to form?
- Unstable conditions
- a lifting force
- high moisture levels
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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
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What often exist in cumulonimbus clouds?
- Severe turbulence
- lightning
- hail
- tornadoes
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