// Station · 1h 0m ago · STALE
KGAI
Montgomery County Airpark
CAT VFR
WIND VRB / 5 kt
VIS 10+ SM
CEILING CLR
T/Td 30°C / 21.1°C
ALTIM 30.08 inHg
ELEV 539 FT
39.1683°N / 77.1660°W
LOCATION · Gaithersburg, US
WIND
VRB5 kt
KGAI · 539 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 22Z
+6H
+12H
+18H
WIND
VRB/5
VIS
10+ SM
CEILING
CLR
LAYERS
—
T / Td
30 / 21
ALTIM
30.08"
// Interpretation
VFR with light winds at variable/5 kt. Visibility better than 10 statute miles and no reported cloud layers. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.
Loading TAF forecast narrative…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR KGAI 142256Z AUTO VRB05KT 10SM CLR 30/21 A3008 RMK AO2 SLP193 T03000211
KGAI · day 14 at 22:56 UTC · wind variable at 5 kt · visibility 10+ SM · temp 30°C / dewpoint 21°C · altimeter 30.08" Hg · automated station w/ precipitation discriminator · sea-level pressure 1019.3 mb
// Runway analysis · computed from current METAR wind
Wind VRB @ 5 kt
ALL USABLE · WINDS CALM
WIND
VRB5 kt
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
2 ends
14
HDG 140°
—CALM
——
4,202'
32
HDG 320°
—CALM
——
4,202'
Pattern altitude: 1,539 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 +16°C
2,300FT
+1,761 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↗ +900 FT
24h AGO18h12h6hNOW
FIELD ELEV539 FT
OAT+30°C
ISA DELTA+16°C
PRESSURE ALT377 FT
// Performance equivalent
Operating here right now feels like operating at KJST
(John Murtha Johnstown Cambria County Airport, Johnstown, elev 2,284 ft)
on a standard ISA day.
// Aircraft performance impact
MINOR
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+23%
-16%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+16%
-10%
Light jetCJ4, Phenom 300, M2
+9%
-7%
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 · clear · no layers reported
// Sun & Moon · times in Z · bar = local day (UTC-5)
09:55ZSUNRISE
17:15ZSOLAR NOON
00:36ZSUNSET
01:07ZCIVIL END
CURRENT23:56Z
DAYLIGHT REMAINING39m
VFR NIGHT BEGINS01:07Z (1h 10m)
DAY LENGTH14h 40m
New Moon
ILLUMINATION0%
MOONRISE10:05Z
MOONSET00:46Z
FULL MOON IN15 days
// Nearest reporting stations · 5 shown · 60 NM radius
KCGS
VFR
College Park Airport · College Park
- WIND
- 230° / 4 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 16 NM SE
- AGE
- 21m ago
KFDK
VFR
Frederick Municipal Airport · Frederick
- WIND
- 200° / 5 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 18 NM NW
- AGE
- 4m ago
KJYO
VFR
Leesburg Executive Airport · Leesburg
- WIND
- 220° / 7 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 19 NM W
- AGE
- 21m ago
KIAD
VFR
Washington Dulles International Airport · Dulles
- WIND
- 220° / 4 kt
- VIS
- 10+ SM
- CEILING
- BKN250
- DIST
- 19 NM SW
- AGE
- 4m ago
KFME
VFR
Fort Meade Executive Airport · Fort Meade(Odenton)
- WIND
- 230° / 4 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 20 NM E
- AGE
- 21m ago
// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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