Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

Significant moisture corridor approaching. Probability of localized street runoff and reduced visibility on transit corridors.

France•West & Brittany•Elev: 357m

Vannes Weather Station

Tuesday, September 29, 2026

20°C
OvercastFeels like 20°
H: 29°•L: 19°•Rain: 25%
Meteorological Synthesis

Overcast with highs near 29°C.

Precipitation expected over the coming days with variable skies.

Wind
9.7 km/h
Humidity
78%
UV Index
0 / 11
Pressure
989 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
20°
0%
8k
00:00
20°
0%
10k
01:00
20°
3%
10k
02:00
20°
5%
9k
03:00
20°
25%
11k
04:00
19°
18%
10k
05:00
19°
13%
13k
06:00
19°
5%
12k
07:00
19°
5%
12k
08:00
19°
13%
16k
09:00
21°
5%
17k
10:00
23°
0%
20k
11:00
25°
0%
24k
12:00
27°
0%
22k
13:00
28°
0%
20k
14:00
28°
0%
18k
15:00
29°
0%
17k
16:00
29°
0%
16k
17:00
28°
3%
15k
18:00
27°
3%
18k
19:00
25°
0%
15k
20:00
23°
0%
14k
21:00
22°
0%
11k
22:00
21°
0%
15k
23:00

Air Quality (AQI)

Fair
27EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
3.5 µg/m³
PM10
6.9 µg/m³
NO₂
1.1 µg/m³

UV Index

Max 4.9
0/ 11 (Moderate)

Low to moderate exposure. Sunglasses recommended during peak afternoon hours.

0 (Low)6 (High)11+ (Extreme)

Wind

10m AGL
9.7km/h

Gusts up to 16.6 km/h.

Direction: 117°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:51
Sunset
19:40
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1017hPa (MSL)
Surface Pressure989 hPa
Cloud Cover100%

Humidity & Moisture

RH Ratio
78%
Current Rain0 mm
24h Rain Accumulation0.5 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 29
25%
19°
29°
Tomorrow
Sep 30
50%
19°
26°
Thu
Oct 1
94%
15°
22°
Fri
Oct 2
-
14°
26°
Sat
Oct 3
27%
18°
21°
Sun
Oct 4
28%
15°
27°
Mon
Oct 5
24%
15°
26°
Tue
Oct 6
28%
15°
26°
Wed
Oct 7
27%
15°
23°
Thu
Oct 8
14%
12°
19°
Fri
Oct 9
-
7°
17°
Sat
Oct 10
18%
6°
20°
Sun
Oct 11
21%
12°
19°
Mon
Oct 12
22%
9°
18°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in France

Regional Grid

Live Ground-Truth Observation Feed

Peer-verified reports logged by spotters and automated PWS stations across Europe

Real-time Ingestion
Log Local Ground ConditionStep 1 of 2: Select condition
Vannes Weather Station
Ground Temp:°C

Observations undergo peer verification by regional spotters and enrich city telemetry.

Filter:
6 reports
S
Stefan MüllerAlpine Master SpotterAlps
Garmisch-Partenkirchen, Germany•Recent
15°C•Partly Cloudy

“Crisp morning air around Zugspitze valley station, golden sun breaking through light morning mountain mist. Zero wind, visibility > 35km.”

Ground-Truth Telemetry
C
Chloé DuboisCoastal Maritime SpotterAtlantic
Le Havre, France•Recent
14°C•Rain / Showers

“Fresh Atlantic westerly gale picking up, moderate sea swell (2.2m). Light intermittent drizzle across the harbor piers.”

Ground-Truth Telemetry
D
Dr. Alessandro RivaHigh Alpine ObserverAlps
Cortina d’Ampezzo, Italy•Recent
9°C•Clear Sky

“First seasonal frost dusting on peaks above 2,600m. Crisp alpine sky with cirrus uncinus approaching from the west.”

Ground-Truth Telemetry
M
Matteo RossiMediterranean SpotterMediterranean
Rome, Italy•Recent
22°C•Clear Sky

“Warm evening breeze across Piazza Navona. Pleasant 22°C with dry conditions and comfortable humidity around 48%.”

Ground-Truth Telemetry
E
Emre KayaBosporus Weather StationMediterranean
Istanbul, Turkey•Recent
21°C•Partly Cloudy

“Bosphorus breeze is cool and refreshing from the Black Sea. Crystal blue sky with passing white cumulus clouds at 1,200m.”

Ground-Truth Telemetry
A
Astrid LindholmFjord Atmospheric LabNordic
Bergen, Norway•Recent
11°C•Dense Fog

“Low scud clouds drifting over Mount Fløyen. Typical Atlantic marine layer with fine mist and 98% relative humidity.”

Ground-Truth Telemetry

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