( ProWeather 1-Weather for AVIATION PROs )
METAR/TAF(Classic format)(METAR/TAF Results displayed directly below)
(enter CONUS apts starting with a K(eg. KMCC), enter Alaska/Hawaii apts starting with a P(eg. PANC))
Get APT (direct entry)
KASD METAR and TAF
KASD 170953Z AUTO 15006KT 10SM BKN038 BKN050 BKN055 23/20 A3003 RMK AO2 SLP170 T02330200
KASD 170520Z 1706/1806 12008G14KT P6SM BKN020 OVC030 FM171400 13010KT P6SM VCTS BKN015CB FM172100 13008KT P6SM OVC025
KASD Flight Category(assigned automatically by the NOAA NWS AviationWeather.gov ADDS system)
METAR and TAF
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Flight Category(assigned automatically by the NOAA NWS AviationWeather.gov ADDS system)
( RE-Check current METAR/TAF )
METAR Numeric Codes (usually listed after RMK)
1xxxxx___6-hr maximum temp(2nd digit=0 is positive, 1 is negative)(eg. 10405 = +40.5 degrees Celsius)
2xxxxx___6-hr minimum temp (eg. 21337 = -33.7 degrees Celsius)
4/xxx___Total snow depth in inches (eg. 4/020 = snow depth of 20 inches on ground)
4xxxxxxxx___24-hr maximum/minimum temperatures, 2nd and sixth digits equal 0 for positive and 1 for negative (eg. 401551095 = 24-hr maximum temp of +15.5 degrees Celsius and a 24-hr minimum temp of -9.5 degrees Celsius)
5xxxx___3 hour pressure tendency. The second digit gives the tendency/trend: 0–3 is rising, 4 is steady and 5–8 is falling , the last 3 digits give the pressure change in tenths of a millibar in the last 3 hours. (eg 50009 indicates a rising pressure tendency/trend of 0.9 millibars.)
6xxxx___3 or 6 hour precipitation amount. The last 4 digits are the inches of rain in hundredths. (eg. 60200 = 2 inches of rain)
7xxxx___24-hour precipitation amount. The last 4 digits are the inches of rain in hundredths. (eg. 70500 = 5 inches of rain)
8/xxx___Cloud cover using WMO code. Three digit code follows the /. Lower numbers are for clearer skies, high numbers are for overcast. (I have not seen this in the NorCal airport METARs yet).
98xxx___Duration of sunshine in minutes. The last three digits after 98 are minutes. (eg. 98120 = 120 minutes of sunshine)
931xxx___Snowfall in the last 6-hours. The last three digits display snowfall in inches and tenths. (eg. 931515 = 51.5 inches of snowfall)
933xxx___Liquid water equivalent of the snow (SWE). The last three digits display liquid water equivalent of snow in inches and tenths (eg. 933055 = 5.5 inches of liquid water in snow)
Other METAR codes
SLP155 = current barometric pressure extrapolated to sea level (SLP155 equals 1015.5 hPa)(Standard Pressure equals SLP133 or 1013.25(1013.3 hPa/millibars)
Pxxxx = liquid-equivalent precipitation accumulated during the last hour to hundredths of inches (P0050 = .5 inch of rain in the past hour)
Txxxxxxxx is the Hourly Temperature and Dew point. The first 4 digits are temperature. The second 4 digits are Dew Point. The first digit of each group is either 0 for above zero Celsius or 1 for below zero Celsius. (eq. T00251015 = Temp +2.5C, Dew Pt -1.5C)
REMARKS IDENTIFIER: RMK
TORNADIC ACTIVITY: Augmented; report should include TORNADO, FUNNEL CLOUD, or WATERSPOUT, time begin/end, location, movement; e.g., TORNADO B25 N MOV E.
TYPE OF AUTOMATED STATION: AO2; automated station with precipitation discriminator.
PEAK WIND: PK WND dddff(f)/(hh)mm; direction in tens of degrees, speed in whole knots, and time.
PK WND 20032/25
WIND SHIFT: WSHFT (hh)mm
TOWER OR SURFACE VISIBILITY: TWR VIS vvvvv: visibility reported by tower personnel, e.g., TWR VIS 2; SFC VIS vvvvv: visibility reported by ASOS, e.g., SFC VIS 2.
VARIABLE PREVAILING VISIBILITY: VIS vnvnvnvnvnVvxvxvxvxvx; reported if prevailing visibility is < 3 miles and variable.
VIS 3/4V1 1/2
VISIBILITY AT SECOND LOCATION: VIS vvvvv [LOC]; reported if different than the reported prevailing visibility in body of report.
VIS 3/4 RWY11
LIGHTNING: [FREQ] LTG [LOC]; when detected the frequency and location is reported, e.g., FRQ LTG NE(freq. lightning in the NE), LTG DSNT W (Lightning Distant in the West)(DSNT/distant is weather greater than 10 statute miles from an observation point)(a lightning strike observed/detected 25 statute miles west of the observation point (ASOS/AWOS/Apt Ctl Twr) would be coded as LTG DSNT W)(lightning strikes observed/detected in all quadrants 25 statute miles from the observation point (ASOS/AWOS/Apt Ctl Twr) would be coded as LTG DSNT ALQDS)
VIRGA: Augmented; precipitation not reaching the ground, e.g., VIRGA.
VARIABLE CEILING HEIGHT: CIG hnhnhnVhxhxhx; reported if ceiling in body of report is < 3000 feet and variable.
CEILING HEIGHT AT SECOND LOCATION: CIG hhh [LOC]; Ceiling height reported if secondary ceilometer site is different than the ceiling height in the body of the report.
CIG 017 RWY11
SENSOR STATUS INDICATORS: RVRNO: RVR missing; PWINO: precipitation identifier information not available; PNO: precipitation amount not available; FZRANO: freezing rain information not available; TSNO: thunderstorm information not available; VISNO [LOC]: visibility at secondary location not available, e.g., VISNO RWY06; CHINO [LOC]: (cloud-height-indicator) sky condition at secondary location not available, e.g., CHINO RWY06.
MAINTENANCE CHECK INDICATOR: Maintenance needed on the system.
If an element or phenomena does not occur, is missing, or cannot be observed, the corresponding group and space are omitted (body and/or remarks) from that particular report, except for Sea-Level Pressure (SLPppp). SLPNO shall be reported in a METAR when the SLP is not available.
U.S. DEPARTMENT OF COMMERCE - NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION - National Weather Service - Observing Systems Branch, 1325 East-West Highway, Silver Spring, Maryland 20910
NWS/NOAA AviationWeather.gov (METAR/TAF results displayed on NWS Aviationweather.gov page)
(button press takes you to AviationWeather.gov METAR results)
TAF decoder (NWS) ( Wind[22020G35KT] - Visibility[3SM,P6SM] - Weather[RA,FG,HZ,BR,TS] - Sky Condition[SKC,CLR,BKN030] - Optional Data (Wind Shear)[WS015/22055KT]--at 1500ft AGL from 220true at 55knots)
[ For aviation purposes, the ceiling is the lowest broken or overcast layer or vertical visibility into a complete obscuration. ]
Aviation Weather.gov (Aviation Weather Center)(NWS/NOAA)-main page
Current Weather (for Non-AVPros) for KASD (NOAA)
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