FPCN11 CWTO 171120 AAC
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 7:19 A.M. EDT TUESDAY 17 MARCH
2026 FOR TODAY AND WEDNESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.

GANANOQUE - MALLORYTOWN.
TODAY..PERIODS OF SNOW ENDING THIS MORNING THEN MAINLY CLOUDY WITH
 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW THIS MORNING. WIND
 SOUTHWEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 30 GUSTING TO 50
 NEAR NOON. HIGH MINUS 6. WIND CHILL MINUS 20 THIS MORNING AND
 MINUS 14 THIS AFTERNOON. UV INDEX 2 OR LOW.
TONIGHT..PARTLY CLOUDY. CLEARING LATE THIS EVENING. WIND NORTHWEST
 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 14.
 WIND CHILL NEAR MINUS 17.
WEDNESDAY..INCREASING CLOUDINESS. WIND UP TO 15 KM/H. HIGH MINUS 1.
 WIND CHILL MINUS 17 IN THE MORNING AND MINUS 5 IN THE AFTERNOON. UV
 INDEX 3 OR MODERATE.

BROCKVILLE - PRESCOTT.
TODAY..PERIODS OF SNOW ENDING THIS MORNING THEN MAINLY CLOUDY WITH
 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW THIS MORNING. WIND
 SOUTHWEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 30 GUSTING TO 50
 NEAR NOON. TEMPERATURE FALLING TO MINUS 6 THIS MORNING THEN STEADY.
 WIND CHILL NEAR MINUS 16. UV INDEX 2 OR LOW.
TONIGHT..MAINLY CLOUDY. CLEARING LATE THIS EVENING. WIND NORTHWEST
 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 14.
 WIND CHILL NEAR MINUS 17.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD LATE IN THE
 MORNING. WIND UP TO 15 KM/H. HIGH MINUS 1. WIND CHILL MINUS 17 IN
 THE MORNING AND MINUS 6 IN THE AFTERNOON. UV INDEX 4 OR MODERATE.

MORRISBURG - LONG SAULT.
TODAY..PERIODS OF SNOW ENDING THIS MORNING THEN MAINLY CLOUDY WITH
 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW THIS MORNING. WIND
 SOUTHWEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 30 GUSTING TO 50
 NEAR NOON. TEMPERATURE FALLING TO MINUS 7 THIS AFTERNOON. WIND CHILL
 NEAR MINUS 16. UV INDEX 2 OR LOW.
TONIGHT..MAINLY CLOUDY. CLEARING AFTER MIDNIGHT. WIND NORTHWEST
 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW MINUS 13.
 WIND CHILL MINUS 17 THIS EVENING AND MINUS 12 OVERNIGHT.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
 WIND UP TO 15 KM/H. HIGH ZERO. WIND CHILL MINUS 16 IN THE MORNING.
 UV INDEX 4 OR MODERATE.

CORNWALL - LANCASTER.
TODAY..PERIODS OF SNOW ENDING THIS MORNING THEN MAINLY CLOUDY WITH
 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW THIS MORNING. WIND
 SOUTHWEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 30 GUSTING TO 50
 NEAR NOON. TEMPERATURE FALLING TO MINUS 7 THIS AFTERNOON. WIND CHILL
 NEAR MINUS 16. UV INDEX 2 OR LOW.
TONIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING
 LIGHT THIS EVENING. LOW MINUS 13. WIND CHILL MINUS 17 THIS EVENING
 AND MINUS 12 OVERNIGHT.
WEDNESDAY..SUNNY. BECOMING A MIX OF SUN AND CLOUD IN THE AFTERNOON.
 WIND UP TO 15 KM/H. HIGH ZERO. WIND CHILL MINUS 16 IN THE MORNING.
 UV INDEX 4 OR MODERATE.

REMAINDER UNCHANGED.

END