Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Elevated Wind Gusts

Wind gusts exceeding 47.2 km/h recorded across the local sector. Secure loose outdoor fixtures and exercise caution along exposed routes.

United Kingdom•England - Greater London & South•Elev: 801m

Portsmouth Alpine Beacon

Wednesday, September 30, 2026

17°C
OvercastFeels like 13°
H: 19°•L: 15°•Rain: 100%
Meteorological Synthesis

Overcast with highs near 19°C.

Precipitation expected over the coming days with variable skies.

Wind
35.6 km/h
Humidity
77%
UV Index
0.1 / 11
Pressure
1008 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
17°
6%
36k
17:00
17°
13%
34k
18:00
17°
18%
38k
19:00
16°
22%
38k
20:00
16°
26%
25k
21:00
17°
29%
34k
22:00
17°
34%
32k
23:00
16°
39%
32k
00:00
16°
39%
32k
01:00
16°
31%
30k
02:00
16°
18%
28k
03:00
15°
8%
24k
04:00
15°
4%
24k
05:00
15°
2%
25k
06:00
15°
2%
29k
07:00
15°
2%
26k
08:00
15°
3%
27k
09:00
15°
4%
26k
10:00
15°
3%
27k
11:00
15°
1%
30k
12:00
15°
0%
31k
13:00
15°
0%
31k
14:00
15°
1%
30k
15:00
15°
2%
32k
16:00

Air Quality (AQI)

Fair
29EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
5 µg/m³
PM10
27.9 µg/m³
NO₂
0.8 µg/m³

UV Index

Max 2.4
0.1/ 11 (Moderate)

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

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

Wind

10m AGL
35.6km/h

Gusts up to 47.2 km/h.

Direction: 182°
Moderate Gale

Solar Cycle

Daylight: 12h
Sunrise
07:16
Sunset
18:54
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1008hPa (MSL)
Surface Pressure1008 hPa
Cloud Cover100%

Humidity & Moisture

RH Ratio
77%
Current Rain0 mm
24h Rain Accumulation7.1 mm

Alpine & Mountain Snow Telemetry

High-altitude resort & pass conditions (801m ASL)

Alpine High-Res Model
Base Snow Depth
25 cm
Packed Powder
Summit Snow Depth
55 cm
Dry Crystalline
0°C Freezing Level
3416 m
Atmospheric Isotherm
Avalanche Risk
Level 2
Moderate (EAWS Grade)

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 30
100%
15°
19°
Tomorrow
Oct 1
39%
15°
16°
Fri
Oct 2
90%
15°
17°
Sat
Oct 3
34%
14°
15°
Sun
Oct 4
12%
14°
16°
Mon
Oct 5
16%
14°
16°
Tue
Oct 6
31%
13°
14°
Wed
Oct 7
49%
12°
13°
Thu
Oct 8
39%
12°
13°
Fri
Oct 9
45%
13°
16°
Sat
Oct 10
45%
13°
13°
Sun
Oct 11
41%
12°
13°
Mon
Oct 12
37%
12°
15°
Tue
Oct 13
43%
15°
15°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in United Kingdom

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
Portsmouth Alpine Beacon
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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