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// Station · 24m ago

KPSM

Portsmouth International Airport at Pease
CAT VFR
WIND 050° / 5 kt
VIS 10+ SM
CEILING Few/scattered only
T/Td 25.2°C / 12.1°C
ALTIM 29.97 inHg
ELEV 100 FT
43.0779°N / 70.8233°W
LOCATION · Portsmouth, US
N
WIND
050°5 kt
KPSM · 100 FT
© OSM · CartoDB

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
050°/5
 
 
 
VIS
10+ SM
 
 
 
CEILING
 
 
 
LAYERS
SCT250
 
 
 
T / Td
25 / 12
 
 
 
ALTIM
29.97"
 
 
 

// Interpretation

VFR with light winds at 050°/5 kt. Visibility better than 10 statute miles and scattered at 25,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KPSM 111355Z 05005KT 10SM SCT250 25/12 A2997 RMK AO2A SLP151 T02520121

KPSM · day 11 at 13:55 UTC · wind from 050° at 5 kt · visibility 10+ SM · scattered layer at 25,000 ft · temp 25°C / dewpoint 12°C · altimeter 29.97" Hg · sea-level pressure 1015.1 mb

// Runway analysis · computed from current METAR wind

Wind 050° @ 5 kt
1 USABLE · 1 AVOID
N
WIND
050°5 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
34 HDG 340° H2 kt X5 kt RIGHT PRIMARY · 11,321'
TAILWIND ENDS · AVOID 1 ends
16 HDG 160° T2 kt X5 kt LEFT
Pattern altitude: 1,100 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +10°C

1,300FT
+1,200 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -800 FT
2,400 1,200 0
24h AGO18h12h6hNOW
FIELD ELEV100 FT OAT+25°C ISA DELTA+10°C PRESSURE ALT47 FT
// Performance equivalent Operating here right now feels like operating at KERR (Errol Airport, Errol, elev 1,245 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+13%
-9%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+9%
-6%
Light jetCJ4, Phenom 300, M2
+5%
-4%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 12,827 FT SCT250 KPSM ELEV · 100 FT
// Reported layers (highest → lowest)
SCT250
Scattered · base 25,000 ft AGL · ~3–4 oktas
// Computed
CEILING HIGHEST LAYER25,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL12,827 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-5)

09:15ZSUNRISE
16:49ZSOLAR NOON
00:24ZSUNSET
00:59ZCIVIL END
CURRENT14:19Z DAYLIGHT REMAINING10h 05m VFR NIGHT BEGINS00:59Z (10h 39m) DAY LENGTH15h 09m
Waning Crescent
ILLUMINATION11% MOONRISE06:39Z MOONSET21:48Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 60 NM radius

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

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