Grid CN99 Band Conditions — Vancouver
Localized HF conditions for Maidenhead locator CN99. Coordinating at 49.50°, -121.00°. Updated with real-time telemetry from NOAA and DX cluster reports.
CN99 conditions are FAIR. Best bands: 10m, 12m, 15m, 17m, 20m. SFI: 137.
From Vancouver, work the 12:21 UTC and 04:01 UTC grayline windows: probe 20m, 30m, and 40m in the 15 minutes either side while the terminator crosses CN99.
10m and 20m are the main daytime rate bands from this part of North America. Watch 10m first if SFI stays elevated.
This square sits in USA footprint and is best used as a planning center for portable, field-day, and home-station band decisions.
- Latitude zone
- upper mid-latitude
- Local phase
- Daylight
- Aurora exposure
- low at this latitude
- Grayline
- 12:21 UTC / 04:01 UTC
- Best high band
- 10m
- Nearest city
- Vancouver
● Local Band Quality Scorings
Use this local score for CN99, then compare the global live ranking oncurrent ham band conditionsbefore changing bands.
● Best DX Windows from CN99 — Vancouver
Great-circle distance, short-path beam heading, the bands most likely open right now from CN99 to each DX region at SFI 137 / Kp 3, and a current verdict. "Open now" means a suitable band is scoring well on that path; "Try ~HH:MM" points at the next far-end grayline. Band picks and status are a planning heuristic, not a measurement.
| Target | Distance | Beam | Bands to try | Status |
|---|---|---|---|---|
| North America | 1,342 mi | 114° | 10m, 15m, 20m | Open now |
| East Asia / Japan | 4,817 mi | 302° | 10m, 15m, 20m | Open now |
| Europe | 4,976 mi | 31° | 10m, 15m, 20m | Open now |
| South America | 5,870 mi | 120° | 10m, 15m, 20m | Open now |
| South Asia | 7,361 mi | 342° | 10m, 15m, 20m | Open now |
| Oceania | 7,721 mi | 249° | 10m, 15m, 20m | Open now |
| Southern Africa | 10,045 mi | 59° | 10m, 15m, 20m | Open now |
● Band-by-Time Plan for CN99
A planning heuristic for the local day at CN99, built from sunrise 12:21 UTC, sunset 04:01 UTC, SFI 137, and Kp 3. Not a measurement — a starting point for where to listen as the day turns.
Grayline enhancement — low bands reach long distances as the terminator passes.
High bands rising with the sun; check 10m for DX.
Peak high-band window — 10m and 15m open widest.
Second grayline peak — 20m holds, then hands off to 40m.
Low bands own the darkness — 40m for DX, 80m regional.
Recent local activity
Spots touching CN99 and the adjacent squares
These are the newest 10m, 15m, and 20m reports where one side of the path sits in CN99, CO90, CN98, DN09, CN89. This gives the page unique, local context instead of a generic solar snapshot.
Top DX targets
Where this grid is reaching right now
Contest preview
Next major contest outlook
Worked All Europe - SSB starts Sat, 12 Sep 2026 00:00:00 GMT. Current forecast from CN99: 10m EXCELLENT, 15m EXCELLENT, 20m GOOD. Current solar conditions (SFI 137, K 3) favor 10m, 15m, 20m for this contest weekend.
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