Presfr

KEY TO DECODE AN ASOS (METAR) OBSERVATION

key to decode an asos (metar) observation metar kabc 121755z auto 21016g24kt 180v240 1sm r11/p6000ft -ra br bkn015 ovc025 06/04 a2990 rmk ao2 pk wnd 20032/25 wshft 1715 vis 3/4v1 1/2 vis 3/4 rwy11 rab07 cig 013v017 cig 017 rwy11 presfr slp125 p0003 60009 t00640036 10066 21012 58033 tsno $ type ...

opwx.db.erau.edu

Corporate Flyer

... -----metar kjfk 202251z 10018g22kt4sm -rabr bkn009 bkn024 ovc048 07/06 a3005 rmk ao2 presfr slp176 p0008 t00670061 metar kewr 202251z 06009kt2sm rabr bkn005 ovc012 04/04 a3004 rmk ao2 sfc vis 3 presfr slp171 p0016 t00440039 terminal forecasts ...

www.jeppesen.com

METAR/TAF LIST OF ABBREVIATIONS AND ACRONYMS

key to decode an asos (metar) observation metar kabc 121755z auto 21016g24kt 180v240 1sm r11/p6000ft -ra br bkn015 ovc025 06/04 a2990 rmk ao2 pk wnd 20032/25 wshft 1715 vis 3/4v1 1/2 vis 3/4 rwy11 rab07 cig 013v017 cig 017 rwy11 presfr slp125 p0003 60009 t00640036 10066 21012 58033 tsno $ type ...

www.wrh.noaa.gov

SOUNDING IN

... 4'jl5/ 758 lixx presfr 09572 s m6632rff 034/i4/73+1(18/ dsnt ltgic sa' presfr 10562 1105%: 11152 11552 12562 13562 14532 s e6633tr-f \v3xi/ltr+f wjjxl/ltr+f s [email protected] 9063itr-f s 903 u07 eiobj7 [email protected] presrr /284 17xx table 1.- ...

docs.lib.noaa.gov

SOUNDING IN THE EYE

Wind and speed direction CY50+85 +40+52 LZ+30 tll L504-67 " Remarks PRESFR IN EYE OF ARLENE PRESFR IN EYE OF ARLENE LOWEST PRES 974.5mb. It is interesting to note the tropopause variations during the passage of the hurricane eye.

docs.lib.noaa.gov

CHAPTER 11 PRESSURE

At designated stations, the pressure change remarks (PRESRR or PRESFR) shall be reported if occurring at the time of observation (see paragraph 12.7.1.u).

www.ofcm.gov

FAA-H-8083-25, Handbook of Aeronautical Knowledge -- 3 of 4

Example: METAR KGGG 161753Z AUTO 14021G26 3/4SM +TSRABR BKN008 OVC012CB 18/17 A2970 RMK PRESFR Atypical METAR report contains the following information in sequential order: 1.

www.sportpilot.info

LIST OF ABBREVIATIONS AND ACRONYMS1

... PR partial PRESFR pressure falling rapidly PRESRR pressure rising rapidly PWINO precipitation identifier sensor not available PY spray R right (with reference to runway designation) ...

www.ofcm.gov

ASOS GUIDE FOR PILOTS

PRESSURE RISING OR FALLING RAPIDLY: This is coded as PRESRR(pressure rising rapidly) or PRESFR(pressure falling rapidly). It is a rise or fall in station pressure at the rate of 0.06 inches or more per hour which totals 0.02 inches or more.

www.nws.noaa.gov

"A GREAT STORM IS UPON MICHIGAN" THE GREAT BLIZZARD OF 1978!

Air pressure tendencies were noted as falling rapidly /PRESFR/ and continued that way for several hours (in fact, several stations in this storms path had to re-adjust their barographs for station pressures traces that were BELOW initial chart scale).

www.midmichiganweather.com

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