[source: ADDS]
METAR
CYOW 201700Z 13007KT 070V210 15SM FEW180 SCT250 22/12 A3027 RMK AC1CI3 AC TR SLP254 DENSITY ALT 900FT =
TAF CYOW 201741Z 2018/2118 12007KT P6SM SCT240 FM211000 17010KT P6SM SCT040 BKN220 BECMG 2114/2115 19012G22KT RMK NXT FCST BY 202100Z
TAF
TAF CYOW 201741Z 2018/2118 12007KT P6SM SCT240 FM211000 17010KT P6SM SCT040 BKN220 BECMG 2114/2115 19012G22KT RMK NXT FCST BY 202100Z =

TodayTomorrowDay after tomorrowYesterday

TODAY @ 14:00 EDT

New forecast available at these times (EDT) 04:05 10:00
How many hours ahead does the forecast predict? 12 6
 
The matrix above shows the times of day that new forecasts usually become available, and the forecast's corresponding projection timeframe. The six hour forecast should be more reliable than the twelve hour forecast because the data upon which it is built is newer.

Thermal activity

Click for hourly animation. Updated 04:15 10:15

Click for hourly animation. Updated 04:15 10:15

Click for hourly animation. Updated 04:15 10:15

Clouds

Click for hourly animation. Updated 04:15 10:15

Click for hourly animation. Updated 04:15 10:15

Winds

Caution. The units for wind are actually km/hour. Disregard the map scale showing knots.

Click for hourly animation. Updated 04:15 10:15

Click for hourly animation. Updated 04:15 10:15

Temperature

Click for hourly animation. Updated 04:15 10:15

Click for hourly animation. Updated 04:15 10:15

Thunderstorm potential

Click for hourly animation. Updated 04:15 10:15

TodayTomorrowDay after tomorrowYesterday