Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

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

Turkey•Marmara & Thrace•Elev: 329m

Catalca Hills & Summit

Sunday, September 27, 2026

18°C
OvercastFeels like 17°
H: 21°•L: 18°•Rain: 53%
Meteorological Synthesis

Overcast with highs near 21°C.

Precipitation expected over the coming days with variable skies.

Wind
19.2 km/h
Humidity
87%
UV Index
0 / 11
Pressure
1017 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
19°
13%
21k
17:00
19°
18%
20k
18:00
18°
30%
19k
19:00
18°
30%
19k
20:00
18°
30%
20k
21:00
18°
48%
21k
22:00
18°
53%
21k
23:00
18°
58%
20k
00:00
18°
60%
20k
01:00
18°
55%
18k
02:00
18°
45%
16k
03:00
18°
30%
16k
04:00
18°
15%
19k
05:00
18°
8%
21k
06:00
18°
5%
23k
07:00
18°
3%
23k
08:00
19°
8%
24k
09:00
19°
10%
27k
10:00
19°
8%
28k
11:00
20°
8%
29k
12:00
20°
5%
28k
13:00
20°
0%
28k
14:00
20°
3%
27k
15:00
20°
3%
26k
16:00

Air Quality (AQI)

Fair
25EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
4.8 µg/m³
PM10
6.2 µg/m³
NO₂
6.2 µg/m³

UV Index

Max 4.4
0/ 11 (Moderate)

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

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

Wind

10m AGL
19.2km/h

Gusts up to 40.3 km/h.

Direction: 23°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
06:58
Sunset
18:54
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1017hPa (MSL)
Surface Pressure1017 hPa
Cloud Cover93%

Humidity & Moisture

RH Ratio
87%
Current Rain0 mm
24h Rain Accumulation1.7 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 27
53%
18°
21°
Tomorrow
Sep 28
60%
18°
20°
Tue
Sep 29
76%
17°
19°
Wed
Sep 30
83%
16°
19°
Thu
Oct 1
33%
15°
18°
Fri
Oct 2
45%
15°
17°
Sat
Oct 3
29%
16°
19°
Sun
Oct 4
-
16°
20°
Mon
Oct 5
18%
12°
18°
Tue
Oct 6
14%
10°
18°
Wed
Oct 7
14%
13°
18°
Thu
Oct 8
22%
12°
19°
Fri
Oct 9
14%
11°
19°
Sat
Oct 10
14%
13°
21°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in Turkey

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
Catalca Hills & Summit
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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