Stony Rapids Airport

CYSF / YSF

Stony Rapids, CA

Last Updated
Mar 7, 06:00Z

Current Weather

Display Units
Fresh 29 min ago
06:00Z

☀️ Day
VFR
Flight Rules
--
Temperature
Dewpoint: --
2 kt
Variable
9 SM
Visibility
Ceiling
Unlimited
1012 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYSF 070600Z AUTO VRB02KT 9SM A2987 RMK CLD MISG T MISG DP MISG DENSITY ALT MISG
QNH
1012 hPa
Sea Level Pressure
For altitude above MSL
QFE
985 hPa
Field Pressure
Height above aerodrome (805 ft)
Pressure Alt
843 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,036 ft
ISA Deviation: +1.6°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYSF 070543Z 0706/0718 26005KT P6SM SKC FM070900 VRB03KT P6SM SCT240 FM071200 09005KT P6SM SCT120 BKN200 FM071500 09010KT P6SM FEW020 BKN080 TEMPO 0715/0717 4SM -SN BKN020 OVC050 FM071700 09010KT 4SM -SN OVC030 TEMPO 0717/0718 1 1/2SM -SN OVC020 PROB30 0717/0718 1SM -SN VV010 RMK FCST BASED ON AUTO OBS. NXT FCST BY 071200Z
Upcoming Changes (Next 12 Hours)
06:28Z BASE
+0h
VFR 260° 5 kt
Visibility: >6SM
09:00Z FM070900
+3h
VFR VRB 3 kt
Visibility: >6SM
12:00Z FM071200
+6h
VFR 90° 5 kt
Visibility: >6SM
Ceiling: 20,000 ft
15:00Z FM071500
+9h
VFR 90° 10 kt
Visibility: >6SM
Ceiling: 8,000 ft

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
Chart Features
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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
YSF
06
24

Runway Information

Runway Length Width Surface Heading Wind Component
06/24 5,050 ft 100 ft TREATED GRAVEL No wind data
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - CYSF

8,474 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
51.8%
MVFR
38%
IFR
7.3%
LIFR
2.9%

Stony Rapids Airport is frequently affected by reduced visibility conditions, with VFR weather only 51.8% of the time and IFR/LIFR conditions occurring in 10.2% of observations. Prevailing winds are from the W averaging 6 knots. Calm conditions occur 10.2% of the time. Temperature extremes range from -45°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are September, March, December.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 6 kt
Maximum Recorded: 23 kt
Calm Winds: 10.2%
Direction Distribution:
N
3.5%
NE
4.9%
E
29.2%
SE
8.2%
S
3%
SW
2.6%
W
30.5%
NW
7.8%

Temperature Range

Average: -15°C
Range: -45°C to 29°C
-45°C 29°C

Visibility

Average: 7.6 SM
Below 3 SM: 3.7%
Fog Frequency: 0.8%

Best Months for VFR

September March December

Runway Wind Analysis

Runway 06/24
Favorable wind: 100%
Avg crosswind: 3.4 kt

Statistics computed from 8,474 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Stony Rapids Airport - Airport Information

Airport Details

ICAO Code: CYSF
IATA Code: YSF
Type: medium airport
Status: active
Elevation: 805 ft MSL

Location

City: Stony Rapids
Country: CA
Latitude: 59.250301°
Longitude: -105.841003°
Time Zone: Etc/GMT+7

Runway Information

Runway 06/24
Length: 5,050 ft
Width: 100 ft
Surface: TREATED GRAVEL
ILS: No

About Stony Rapids Airport

Overview

Stony Rapids Airport serves the remote northern Saskatchewan region, situated at 59.250301, -105.841003 with an elevation of 805 ft MSL. This medium-sized airport provides critical transportation infrastructure for a challenging subarctic environment, supporting regional connectivity and essential transportation needs in a sparsely populated area.

Flying Conditions

Weather conditions at Stony Rapids demonstrate significant variability, with Visual Flight Rules (VFR) predominating at 53.5% of observations. Winter temperatures range extensively from -43°C to 29°C, with an average of -12.5°C, presenting notable challenges for aircraft operations. Visibility averages 7.7 statute miles, with only 3.3% of observations showing reduced visibility below 3 miles.

Notable Features

The airport features a single gravel-treated runway (06/24) measuring 5050 feet in length, designed to accommodate regional and smaller aircraft. Prevailing winds consistently blow from the west (270°) at an average of 6.1 knots, with occasional gusts up to 23 knots. Calm wind conditions occur 10.2% of the time, providing relatively stable approach conditions.

Approach Considerations

Runway 06/24 demonstrates favorable wind alignment, with 100% wind compatibility and an average crosswind of just 3.4 knots. September, December, and January represent the most consistently favorable VFR months for pilots. The airport's high-latitude location requires careful preflight planning and awareness of potential rapid weather changes typical of subarctic regions.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

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.