Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

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

Switzerland•German Cantons•Elev: 1033m

Grindelwald Thermal Springs

Tuesday, September 29, 2026

17°C
OvercastFeels like 16°
H: 17°•L: 12°•Rain: 13%
Meteorological Synthesis

Overcast with highs near 17°C.

Precipitation expected over the coming days with variable skies.

Wind
6.4 km/h
Humidity
71%
UV Index
3.4 / 11
Pressure
834 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
17°
0%
5k
12:00
17°
3%
5k
13:00
17°
3%
6k
14:00
17°
0%
6k
15:00
17°
5%
6k
16:00
16°
13%
5k
17:00
15°
5%
4k
18:00
14°
0%
2k
19:00
13°
0%
2k
20:00
13°
3%
5k
21:00
12°
3%
5k
22:00
12°
10%
5k
23:00
12°
20%
7k
00:00
13°
25%
5k
01:00
13°
13%
5k
02:00
13°
15%
5k
03:00
13°
8%
5k
04:00
13°
5%
5k
05:00
13°
8%
5k
06:00
12°
23%
5k
07:00
12°
28%
5k
08:00
13°
18%
4k
09:00
15°
28%
3k
10:00
16°
18%
4k
11:00

Air Quality (AQI)

Fair
30EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
6 µg/m³
PM10
7.9 µg/m³
NO₂
0.8 µg/m³

UV Index

Max 4.4
3.4/ 11 (Moderate)

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

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

Wind

10m AGL
6.4km/h

Gusts up to 19.4 km/h.

Direction: 322°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:28
Sunset
19:17
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1023hPa (MSL)
Surface Pressure834 hPa
Cloud Cover100%

Humidity & Moisture

RH Ratio
71%
Current Rain0 mm
24h Rain Accumulation0.1 mm

Alpine & Mountain Snow Telemetry

High-altitude resort & pass conditions (1033m ASL)

Alpine High-Res Model
Base Snow Depth
25 cm
Packed Powder
Summit Snow Depth
55 cm
Dry Crystalline
0°C Freezing Level
3618 m
Atmospheric Isotherm
Avalanche Risk
Level 2
Moderate (EAWS Grade)

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 29
13%
12°
17°
Tomorrow
Sep 30
38%
12°
17°
Thu
Oct 1
88%
9°
12°
Fri
Oct 2
55%
9°
14°
Sat
Oct 3
40%
10°
12°
Sun
Oct 4
23%
9°
12°
Mon
Oct 5
23%
7°
15°
Tue
Oct 6
18%
8°
17°
Wed
Oct 7
37%
7°
15°
Thu
Oct 8
39%
5°
11°
Fri
Oct 9
33%
1°
11°
Sat
Oct 10
22%
2°
12°
Sun
Oct 11
20%
1°
11°
Mon
Oct 12
33%
-1°
4°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in Switzerland

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
Grindelwald Thermal Springs
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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