Eastmain River Airport

CZEM / ZEM

Eastmain River, CA

Last Updated
Apr 12, 16:00Z

Current Weather

Display Units
Stale 20 hours ago
16:00Z

☀️ Day
VFR
Flight Rules
8°C
Temperature
Dewpoint: -4°C
8 kt
160° G17 kt
15 SM
Visibility
Ceiling
Unlimited
1017 hPa
QNH
Altimeter Setting

Raw METAR

METAR CZEM 121600Z 16008G17KT 15SM FEW045 SCT180 SCT200 08/M04 A3002 RMK SC1AC3CI1 SC TR SLP168

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 24 ft
FEW 4,500 ft AGL
SCT 18,000 ft AGL
SCT 20,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
4,500 ft
AGL (Above Ground)
4,524 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
18,000 ft
AGL (Above Ground)
18,024 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
20,000 ft
AGL (Above Ground)
20,024 ft AMSL

Weather Briefing

VFR

Eastmain River Airport is currently reporting visual flight rules (VFR) conditions with scattered clouds at 18,000 feet and 15 SM visibility. Note: This observation is 20.3 hours old and conditions may have changed.

Wind Analysis

Winds are from the south-southeast (160°) at 8 knots with gusts to 17 knots. Runway 20 is favored with a 6-knot headwind and 5-knot crosswind component (gusting to 11 knots crosswind).

Visibility & Ceiling

Visibility is 15 SM. No ceiling exists. Cloud layers reported: few at 4,500 ft, scattered at 18,000 ft, scattered at 20,000 ft.

Temperature & Moisture

Temperature is 8°C (46°F) with a dewpoint of -4°C, indicating relatively dry conditions.

Pilot Recommendations

Conditions are favorable for visual flight.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1017 hPa
Sea Level Pressure
For altitude above MSL
QFE
1016 hPa
Field Pressure
Height above aerodrome (24 ft)
Pressure Alt
-89 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -923 ft
ISA Deviation: -7.0°C

24-Hour Weather Evolution

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Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
ZEM
02
20 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 02/20
Active: 20
3,512 ft 100 ft GRAVEL 19°
6.1 kt 5.1 kt
40° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - CZEM

1,191 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
53.8%
MVFR
33%
IFR
10.8%
LIFR
2.4%

Eastmain River Airport is frequently affected by reduced visibility conditions, with VFR weather only 53.8% of the time and IFR/LIFR conditions occurring in 13.2% of observations. Prevailing winds are from the S averaging 9.8 knots. Temperature extremes range from -34°C to 21°C, reflecting significant seasonal variation. The best months for VFR flying are March, February, September.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 9.8 kt
Maximum Recorded: 30 kt
Calm Winds: 1.7%
Direction Distribution:
N
6.9%
NE
4%
E
8.4%
SE
8.9%
S
20.3%
SW
12.8%
W
18.2%
NW
18.8%

Temperature Range

Average: -7°C
Range: -34°C to 21°C
-34°C 21°C

Visibility

Average: 12.5 SM
Below 3 SM: 2.7%
Fog Frequency: 3%

Best Months for VFR

March February September

Runway Wind Analysis

Runway 02/20
Favorable wind: 100%
Avg crosswind: 6.4 kt

Statistics computed from 1,191 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

Eastmain River Airport - Airport Information

Airport Details

ICAO Code: CZEM
IATA Code: ZEM
Type: small airport
Status: active
Elevation: 24 ft MSL

Location

City: Eastmain River
Country: CA
Latitude: 52.226398°
Longitude: -78.522499°
Time Zone: Etc/GMT+5

Runway Information

Runway 02/20
Length: 3,512 ft
Width: 100 ft
Surface: GRAVEL
ILS: No

About Eastmain River Airport

Eastmain River Airport (CZEM/ZEM) is located in Eastmain River, CA at an elevation of 24 feet MSL. The airport has 1 runway (02/20), with the longest at 3,512 feet.

Weather Profile

With VFR conditions only 53.8% of the time based on 1,191 observations, CZEM requires careful weather planning. IFR conditions occur in 13.2% of reports, and instrument proficiency is advisable for regular operations here.

Wind Patterns & Runway Selection

Prevailing winds at CZEM come from the S (180°) with an average speed of 9.8 knots and recorded gusts up to 30 knots. Calm winds are rare (1.7%), so crosswind considerations are a regular factor. Runway 02/20 offers the lowest average crosswind component at 6.4 knots, making it the preferred choice in typical wind conditions.

Seasonal Considerations

The best months for VFR operations are March, February, September, when clear skies are most prevalent. Temperatures at the field range from -34°C (-29°F) to 21°C (70°F), averaging -7°C (19°F). Cold weather operations require attention to aircraft preheating, de-icing, and cold-soaked fuel management. Altimeter settings typically range from 29.1 to 30.74 inHg (985-1041 hPa).

Data Sources: Airport data from OurAirports.com. Weather statistics derived from 1,191 official METAR observations (Sep 2025 - Apr 2026). Pilots should always verify current conditions through official channels before flight.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.