Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

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

United Kingdom•England - Greater London & South•Elev: 332m

Windsor River Basin

Sunday, September 27, 2026

9°C
Clear NightFeels like 7°
H: 14°•L: 8°•Rain: 100%
Meteorological Synthesis

Clear Night with highs near 14°C.

Precipitation expected over the coming days with variable skies.

Wind
5.8 km/h
Humidity
90%
UV Index
0 / 11
Pressure
995 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
12°
34%
8k
18:00
10°
6%
3k
19:00
9°
0%
7k
20:00
9°
0%
8k
21:00
9°
0%
8k
22:00
8°
0%
7k
23:00
9°
0%
5k
00:00
7°
0%
6k
01:00
7°
0%
7k
02:00
6°
0%
4k
03:00
5°
0%
3k
04:00
5°
0%
2k
05:00
6°
0%
7k
06:00
4°
0%
1k
07:00
6°
0%
0k
08:00
9°
0%
1k
09:00
11°
0%
1k
10:00
12°
2%
7k
11:00
13°
5%
10k
12:00
14°
6%
9k
13:00
14°
5%
14k
14:00
15°
2%
12k
15:00
15°
0%
12k
16:00
14°
0%
10k
17:00

Air Quality (AQI)

Fair
23EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
1.6 µg/m³
PM10
3.4 µg/m³
NO₂
1 µg/m³

UV Index

Max 0.5
0/ 11 (Moderate)

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

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

Wind

10m AGL
5.8km/h

Gusts up to 11.5 km/h.

Direction: 139°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:09
Sunset
19:01
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1010hPa (MSL)
Surface Pressure995 hPa
Cloud Cover12%

Humidity & Moisture

RH Ratio
90%
Current Rain0 mm
24h Rain Accumulation19.7 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 27
100%
8°
14°
Tomorrow
Sep 28
-
4°
15°
Tue
Sep 29
56%
6°
17°
Wed
Sep 30
97%
13°
17°
Thu
Oct 1
75%
6°
15°
Fri
Oct 2
67%
4°
15°
Sat
Oct 3
36%
8°
14°
Sun
Oct 4
25%
6°
15°
Mon
Oct 5
12%
6°
14°
Tue
Oct 6
19%
4°
14°
Wed
Oct 7
16%
6°
12°
Thu
Oct 8
22%
7°
13°
Fri
Oct 9
27%
9°
13°
Sat
Oct 10
27%
6°
14°

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
Windsor River Basin
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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