Sunnyvale Field (CT21) Area Aviation Weather & Runway Winds
Aviation weather near Sunnyvale Field in North Stonington, CT, decoded from the nearest reporting station (KWST): conditions, runway crosswinds, and free Telegram airport alerts.
Sunnyvale Field (CT21) is a general aviation airport serving pilots in and around North Stonington, CT at 213 ft. CT21 has no weather station of its own. Conditions here are decoded from KWST, about 7 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (1, 19), longest 2,004 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KGON. Track it in the ATIS Alerts Telegram bot to get alerts read from KWST, the station this page is based on.
No weather station at this airport: showing the nearest station KWST, 6.8 nm away.
Wind calm, visibility 10+ statute miles, no cloud data, temperature 16°C (60°F), altimeter 30.12 inHg. Conditions are Visual Flight Rules (VFR).
METAR KWST 130153Z AUTO 00000KT 10SM CLR 16/15 A3012 RMK AO2 SLP198 T01560150
What changed at KWST (nearest station)?
Since the 0053Z (8:53 PM EDT) report, compared automatically against the latest METAR.
No significant changes since the 0053Z report, conditions are holding steady.
This is exactly what ATIS Alerts watches for you: get a Telegram message when CT21's weather changes, free →
Current pilot readout for CT21
Based on the nearest station (KWST), CT21 is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 100 ft (field elevation 213 ft). CT21 does not publish a TAF. The nearest TAF station is KGON, about 13 nm away.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
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Track CT21 free on TelegramRunway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at CT21. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 1 | 2,004 ft | Dirt | - | - |
| 19 | 2,004 ft | Dirt | - | - |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 0→0 kt, ceiling unlimited → unlimited.
CT21 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Sunnyvale Field in North Stonington, CT: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around CT21 is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Pilot reports (PIREPs) within 100 NM of CT21
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
POU UA /OV PWL210010/TM 0118/FL070/TP C25A/TB NEG/IC NEG/RM DURD 170-080
POU UAHeader: reporting station and UA: a routine pilot report.OV PWL210010Location: fix or navaid, optionally with a radial and distance in NM.TM 0118Reported at 01:18 UTC.FL070Altitude: 7,000 ft MSL.TP C25AAircraft type reporting.TB NEGTurbulence: none reported.IC NEGIcing: none reported.RM DURD 170-080Remarks.Show raw report
BDL UA /OV BDL250020/TM 2335/FL270/TP A319/TB NEG/RM DURC N90 DEPT
BDL UAHeader: reporting station and UA: a routine pilot report.OV BDL250020Location: fix or navaid, optionally with a radial and distance in NM.TM 2335Reported at 23:35 UTC.FL270Altitude: 27,000 ft MSL.TP A319Aircraft type reporting.TB NEGTurbulence: none reported.RM DURC N90 DEPTRemarks.Show raw report
DDH UA /OV 4V8 /TM 2157 /FL080 /TP SR20 /SK SKC /WV 22020KT /TB NEG
DDH UAHeader: reporting station and UA: a routine pilot report.OV 4V8Location: fix or navaid, optionally with a radial and distance in NM.TM 2157Reported at 21:57 UTC.FL080Altitude: 8,000 ft MSL.TP SR20Aircraft type reporting.SK SKCSky condition: cloud bases and tops in hundreds of feet MSL.WV 22020KTWind (direction/speed) or wind-shear remarks.TB NEGTurbulence: none reported.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at CT21
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KWST reported mostly VFR across 24 observations, with 0 flight-category changes. Wind most often came from the SE.
Most recent change: MVFR → VFR
- 1/19
- 100%
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Airport facts
Reference data from the OurAirports dataset.
- Type
- General aviation airport
- FAA LID
- CT21
- City
- North Stonington
- State
- Connecticut
- Country
- United States
- Elevation
- 213 ft
- Coordinates
- 41.4606, -71.8300
- Runways
- 2
- Longest runway
- 2,004 ft
- Weather reporting
- Nearest station KWST
- TAF
- Nearest KGON
- Time zone
- America/New_York
- Next sunset
- 20h 33m
Run a flight school, FBO, or club here? Embed CT21's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
9 airports+3 more within 25 NM
25–50 NM
7 airports+1 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Borderline R/C Flyers - Greenhaven Rd , Pawcatuck, CT · 7 mi
- Rhode Island Soaring Club - S County Trail , Richmond, RI · 11 mi
- Rhode Island Soaring Club - Heaton Orchard Rd , Richmond, RI · 11 mi
CT21 weather: frequently asked
What runways are available at CT21?+
CT21 has 2 runways: 1, 19; the longest is 2,004 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for CT21 come from?+
Sunnyvale Field does not have its own weather station. Conditions shown here come from the nearest reporting station, KWST, about 7 nm away, close enough for situational awareness, but local conditions at CT21 can differ.
Does CT21 have a TAF?+
No. CT21 does not publish its own TAF. The nearest TAF station is KGON, about 13 nm away.
Does CT21 broadcast D-ATIS?+
No. CT21 does not broadcast D-ATIS. Alerts for CT21 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Sunnyvale Field (CT21)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Sunnyvale Field, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for CT21 yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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