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// Station · 22m ago

KTWM

Richard B Helgeson Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 16°C / 2°C
ALTIM 30.16 inHg
ELEV 1,073 FT
47.0492°N / 91.7451°W
LOCATION · Two Harbors, US
N
WIND
calm
KTWM · 1,073 FT
© OSM · CartoDB

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

METRIC
NOW · 20Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
16 / 2
 
 
 
ALTIM
30.16"
 
 
 

// Interpretation

VFR with winds calm. 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…

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

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// Raw observation METAR string + decoded

METAR KTWM 302035Z 10SM CLR 16/02 A3016 RMK AO2

KTWM · day 30 at 20:35 UTC · winds calm · visibility 10+ SM · temp 16°C / dewpoint 2°C · altimeter 30.16" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
CALMcalm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 4 ends
06 HDG 060° CALM 4,400'
24 HDG 240° CALM 4,400'
15 HDG 150° CALM 2,581'
33 HDG 330° CALM 2,581'
Pattern altitude: 2,073 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 +3°C

1,100FT
+27 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,600 FT
3,300 1,800 300
24h AGO18h12h6hNOW
FIELD ELEV1,073 FT OAT+16°C ISA DELTA+3°C PRESSURE ALT831 FT
// Performance equivalent Operating here right now feels like operating at KVVV (Ortonville Municipal Airport/Martinson Field, Ortonville, elev 1,100 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+11%
-8%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+8%
-5%
Light jetCJ4, Phenom 300, M2
+4%
-3%

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

FT 0 5k 10k 15k 20k 25k FRZ LVL · 9,154 FT KTWM ELEV · 1,073 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL9,154 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-6)

10:18ZSUNRISE
18:05ZSOLAR NOON
01:53ZSUNSET
02:31ZCIVIL END
CURRENT20:57Z DAYLIGHT REMAINING4h 56m VFR NIGHT BEGINS02:31Z (5h 34m) DAY LENGTH15h 35m
Full Moon
ILLUMINATION100% MOONRISE21:47Z MOONSET13:23Z FULL MOON IN1 day

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

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

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