KMER METAR
Current observed weather at Castle (MER · KMER), Atwater, CA, elevation 190 ft. Reported 5 Nov 2026 1635Z, decoded below with the past 24 hours of observations. · Open on the map
All of Castle — runways, frequencies, charts and live weatherSPECI special report 5 Nov 2026 1635Z
MVFRSPECI KMER 051635Z 00000KT 4SM BR CLR
Times are UTC (Zulu), as they appear in the report.
What it says
| Field | Value | What that means |
|---|---|---|
| Flight category | MVFR | Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM. |
| Wind | Calm | Direction is degrees true, as reported. |
| Visibility | 4 SM | Prevailing horizontal visibility in statute miles. |
| Ceiling | Unlimited | No broken, overcast or obscured layer reported. |
| Sky | Clear below 12,000 ft | — |
Showing 14 of 24 hours — history accumulates hourly, so the full day fills in within 24 hours of a station coming online.
All 14 stored observations time · category · wind · visibility · ceiling · temp
| Time | Category | Wind | Visibility | Ceiling | Temp |
|---|---|---|---|---|---|
| 1655Z | IFR | 320° at 11 kt | 8 SM | 600 ft | — |
| 1655Z | IFR | 320° at 11 kt | 8 SM | 600 ft | — |
| 1855Z | VFR | 360° at 7 kt | 10+ SM | Clear | — |
| 1855Z | VFR | 360° at 7 kt | 10+ SM | Clear | — |
| 2055Z | VFR | 300° at 7 kt | 10+ SM | Clear | — |
| 2055Z | VFR | 300° at 7 kt | 10+ SM | Clear | — |
| 2255Z | VFR | 330° at 7 kt | 10+ SM | Clear | — |
| 2355Z | VFR | 330° at 7 kt | 10+ SM | Clear | — |
| 2355Z | VFR | 330° at 7 kt | 10+ SM | Clear | — |
| 0155Z | VFR | 330° at 5 kt | 10+ SM | Clear | — |
| 0155Z | VFR | 330° at 5 kt | 10+ SM | Clear | — |
| 0355Z | VFR | Calm | 10+ SM | Clear | — |
| 1455Z | IFR | Calm | 2 SM | Clear | — |
| 1455Z | IFR | Calm | 2 SM | Clear | — |
Frequently asked
What is the current METAR at KMER?
The 5 Nov 2026 1635Z observation at Castle reads: SPECI KMER 051635Z 00000KT 4SM BR CLR
Is KMER VFR right now?
Castle is reporting MVFR. Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
How often is the KMER METAR updated?
Routine observations are issued hourly, usually in the 5 minutes before the hour. A SPECI is issued between them whenever conditions change significantly — a ceiling or visibility crossing a category threshold, a wind shift, or the onset of precipitation or a thunderstorm.
More about KMER
Observations from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.
Something here wrong or out of date? Report a data problem.