The two companies have come together to tackle one of the most pressing challenges of our time: keeping cities safe from flooding in an era of intensifying climate extremes.
In the first part of this guide, we explored how numerical weather prediction models simulate the atmosphere, from observational data and data assimilation to model grids and parameterisation. Modern forecasting goes further by combining global and regional models, ensemble systems and advanced computational techniques to better predict weather and its uncertainty.
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Icon
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°F
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26°
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19°
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15°
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13°
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17°
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18°
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15°
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12°
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°F
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11°
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1°
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-3°
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-4°
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1°
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4°
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5°
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2°
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WSW |
WSW |
W |
W |
W |
W |
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WNW |
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mph
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18-30
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21-34
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19-33
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19-30
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17-26
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12-21
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7-15
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6-12
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in
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0.14
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< 0.04
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-
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-
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-
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-
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-
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-
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%
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90%
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65%
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5%
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0%
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0%
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0%
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0%
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0%
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in
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12.4 mi
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Overnight into Tuesday the weather is changing with a mix of clear and cloudy skies and a chance of snow. By day it will clear up until only a few clouds remain. It is a sunny day. Temperatures peaking at 29 °F. The whole day blows a fresh breeze (18 to 25 mph). From time to time gusts could reach up to 34 mph. Winds blowing overnight from Southwest and by day from West. The weather forecast for Napanee for Tuesday can be accurate in parts but deviations are expected. Check again for latest updates.
Pressure: 1008 hPa
Timezone: EDT (UTC -04:00h)
Overnight into Tuesday the weather is changing with a mix of clear and cloudy skies and a chance of snow. By day it will clear up until only a few clouds remain. It is a sunny day. Temperatures peaking at 29 °F. The whole day blows a fresh breeze (18 to 25 mph). From time to time gusts could reach up to 34 mph. Winds blowing overnight from Southwest and by day from West. The weather forecast for Napanee for Tuesday can be accurate in parts but deviations are expected. Check again for latest updates.
Pressure: 1008 hPa
Timezone: EDT (UTC -04:00h)
By comparing today's temperatures to 40 years of historical data we can see whether today's forecast is unusually warm (red areas) or cold (blue areas). Coloured dots show observed actual temperatures from professional and private weather stations.
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The real-time satellite image combines visible light during daytime with infrared radiation during nighttime. At night, the image is not dark as infrared radiation can detect temperature differences. Unfortunately, low clouds and fog are difficult to distinguish from ground temperatures and thus can be almost invisible during the night. Meteosat satellite images for Europe are updated in real-time every 5 minutes. GOES-16/GOES-17 (North & South America) and Himawari (Asia) images update every 10 minutes.
Precipitation is estimated from radar and satellites. Precipitation estimates from satellites are less accurate at night than during daytime.
© 2026 meteoblue, NOAA Satellites GOES-16 and EUMETSAT. Lightning data provided by nowcast.
The location marker is placed on Napanee. This animation shows the precipitation radar for the selected time range, as well as a 1h forecast. Orange crosses indicate lightning. Data provided by nowcast.de (available in USA, Europe, Australia). Drizzle or light snow fall might be invisible for the radar. Precipitation intensity is colour coded, ranging from turquoise to red.
The two companies have come together to tackle one of the most pressing challenges of our time: keeping cities safe from flooding in an era of intensifying climate extremes.
In the first part of this guide, we explored how numerical weather prediction models simulate the atmosphere, from observational data and data assimilation to model grids and parameterisation. Modern forecasting goes further by combining global and regional models, ensemble systems and advanced computational techniques to better predict weather and its uncertainty.
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Kingston 
Clayton 
