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: 287m

Vannes South

Tuesday, September 29, 2026

30°C
OvercastFeels like 29°
H: 30°•L: 20°•Rain: 28%
Meteorological Synthesis

Overcast with highs near 30°C.

Precipitation expected over the coming days with variable skies.

Wind
15.6 km/h
Humidity
39%
UV Index
3.8 / 11
Pressure
1006 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
27°
0%
18k
13:00
28°
0%
13k
14:00
29°
0%
20k
15:00
30°
0%
15k
16:00
29°
0%
17k
17:00
29°
0%
18k
18:00
28°
0%
15k
19:00
26°
0%
14k
20:00
24°
0%
11k
21:00
23°
0%
7k
22:00
22°
0%
8k
23:00
21°
0%
7k
00:00
21°
0%
6k
01:00
21°
0%
5k
02:00
21°
0%
4k
03:00
20°
0%
3k
04:00
20°
0%
4k
05:00
20°
0%
3k
06:00
20°
0%
3k
07:00
20°
3%
3k
08:00
21°
5%
3k
09:00
22°
8%
4k
10:00
23°
10%
5k
11:00
23°
15%
8k
12:00

Air Quality (AQI)

Fair
32EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
2.9 µg/m³
PM10
4.5 µg/m³
NO₂
0.4 µg/m³

UV Index

Max 4.8
3.8/ 11 (Moderate)

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

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

Wind

10m AGL
15.6km/h

Gusts up to 37.4 km/h.

Direction: 161°
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
1014hPa (MSL)
Surface Pressure1006 hPa
Cloud Cover99%

Humidity & Moisture

RH Ratio
39%
Current Rain0 mm
24h Rain Accumulation0.3 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 29
28%
20°
30°
Tomorrow
Sep 30
48%
20°
26°
Thu
Oct 1
68%
15°
23°
Fri
Oct 2
-
11°
27°
Sat
Oct 3
29%
15°
26°
Sun
Oct 4
35%
14°
24°
Mon
Oct 5
15%
16°
24°
Tue
Oct 6
29%
14°
24°
Wed
Oct 7
35%
15°
21°
Thu
Oct 8
27%
11°
20°
Fri
Oct 9
15%
8°
18°
Sat
Oct 10
20%
11°
19°
Sun
Oct 11
22%
13°
18°
Mon
Oct 12
25%
13°
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 South
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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