Aeronautical Information Manual

AIM

4/20/23

(13)

Sensor Status.

PWINO

FZRANO

TSNO

RVRNO

PNO

VISNO

Examples of METAR reports and explanation:

METAR KBNA 281250Z 33018KT 290V360 1/2SM R31/2700FT SN BLSN FG VV008 00/M03 A2991 RMK

RAE42SNB42

METAR

. . . . . . aviation routine weather report

KBNA

. . . . . . . . Nashville, TN

281250Z

. . . . . . date 28

, time 1250 UTC

(no modifier)

. . This is a manually generated report, due to the absence of “AUTO” and “AO1 or AO2”

in remarks

33018KT

. . . . . . wind three three zero at one eight

290V360

. . . . . . wind variable between two nine zero and three six zero

1/2SM

. . . . . . . . visibility one half

R31/2700FT

. . . Runway three one RVR two thousand seven hundred

. . . . . . . . . . . moderate snow

BLSN FG

. . . . . visibility obscured by blowing snow and fog

VV008

. . . . . . . . indefinite ceiling eight hundred

00/M03

. . . . . . . temperature zero, dew point minus three

A2991

. . . . . . . . altimeter two niner niner one

RMK

. . . . . . . . . remarks

RAE42

. . . . . . . rain ended at four two

SNB42

. . . . . . . . snow began at four two

METAR KSFO 041453Z AUTO VRB02KT 3SM BR CLR 15/12 A3012 RMK AO2

METAR

. . . . . . aviation routine weather report

KSFO

. . . . . . . . San Francisco, CA

041453Z

. . . . . . date 4

, time 1453 UTC

AUTO

. . . . . . . fully automated; no human intervention

VRB02KT

. . . . wind variable at two

3SM

. . . . . . . . . visibility three

. . . . . . . . . . visibility obscured by mist

CLR

. . . . . . . . . no clouds below one two thousand

15/12

. . . . . . . . . temperature one five, dew point one two

A3012

. . . . . . . . altimeter three zero one two

RMK

. . . . . . . . remarks

AO2

. . . . . . . . . this automated station has a weather discriminator (for precipitation)

SPECI KCVG 152224Z 28024G36KT 3/4SM +TSRA BKN008 OVC020CB 28/23 A3000 RMK TSRAB24 TS

W MOV E

SPECI

. . . . . . . (nonroutine) aviation special weather report

KCVG

. . . . . . . Cincinnati, OH

152228Z

. . . . . . date 15

, time 2228 UTC

(no modifier)

. . This is a manually generated report due to the absence of “AUTO” and “AO1 or AO2”

in remarks

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Meteorology