// Station · 17m ago

KRDR

Grand Forks Air Force Base

CAT LIFR

WIND 360° / 10 kt

VIS 4.0 SM

CEILING OVC at 300 ft

T/Td 7°C / 6°C

ALTIM 29.82 inHg

WX -RA BR

ELEV 913 FT

47.9611°N / 97.4012°W

LOCATION · Grand Forks, US

WIND

360°10 kt

KRDR · 913 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

360°/10

VIS

4.0 SM

CEILING

OVC003

LAYERS

OVC003

T / Td

7 / 6

ALTIM

29.82"

// Interpretation

LIFR — ceiling 300 ft. Moderate winds at 360°/10 kt, visibility 4.0 SM, overcast at 300 ft. Reported weather: light rain and mist (-RA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

SPECI KRDR 130145Z AUTO 36010KT 4SM -RA BR OVC003 07/06 A2982 RMK AO2 LTG DSNT E CIG 003V012 OVC V SCT SLP109 $

KRDR · day 13 at 01:45 UTC · wind from 360° at 10 kt · visibility 4.0 SM · overcast at 300 ft · temp 7°C / dewpoint 6°C · altimeter 29.82" Hg · weather: light rain and mist (-RA BR) · automated station w/ precipitation discriminator · sea-level pressure 1010.9 mb

// Runway analysis · computed from current METAR wind

Wind 360° @ 10 kt

1 USABLE · 1 AVOID

WIND

360°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

35★ HDG 350° H10 kt X2 kt RIGHT PRIMARY · 12,350'

TAILWIND ENDS · AVOID 1 ends

17 HDG 170° T10 kt X2 kt LEFT —

Pattern altitude: 1,913 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 -6°C

300FT

-613 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV913 FT OAT+7°C ISA DELTA-6°C PRESSURE ALT1,011 FT

// Performance equivalent Operating here right now feels like operating at KPMB (Pembina Municipal Airport, Pembina, elev 795 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+3%

-2%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+2%

-1%

Light jetCJ4, Phenom 300, M2

+1%

-1%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 1 reported · highest to lowest

// Reported layers (highest → lowest)

OVC003

Overcast · base 300 ft AGL · 8 oktas

// Computed

CEILING300 ft AGL HIGHEST LAYER300 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL4,448 ft VFR MARGIN-2,700 ft

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

12:45ZSUNRISE

18:17ZSOLAR NOON

23:48ZSUNSET

00:20ZCIVIL END

CURRENT02:02Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:20Z (past) DAY LENGTH11h 03m

Waxing Crescent

ILLUMINATION3% MOONRISE14:08Z MOONSET01:11Z FULL MOON IN13 days

// Nearest reporting stations

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

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