FPCN13 CWVR 182253 FORECASTS FOR THE SOUTHWEST INTERIOR OF BRITISH COLUMBIA ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. PDT WEDNESDAY 18 MARCH 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. PDT THURSDAY. --------------------------------------------------------------------- MAJOR REFERENCE ELEVATIONS: OKANAGAN AND KAMLOOPS LAKES: 340 METRES. COQUIHALLA - HOPE TO MERRITT: 1230 METRES. COQUIHALLA - MERRITT TO KAMLOOPS: 1440 METRES. CONNECTOR - PENNASK SUMMIT: 1728 METRES. ALLISON PASS: 1340 METRES. --------------------------------------------------------------------- NORTH OKANAGAN - INCLUDING VERNON. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS NEAR ENDERBY AND LUMBY. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 6. THURSDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 LATE IN THE MORNING. HIGH 15. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS CHANGING TO 70 PERCENT CHANCE OF SHOWERS NEAR MIDNIGHT. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE EVENING. LOW PLUS 4. CENTRAL OKANAGAN - INCLUDING KELOWNA. TONIGHT..MAINLY CLOUDY. WIND SOUTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW 7. THURSDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND BECOMING SOUTH 30 KM/H GUSTING TO 50 LATE IN THE MORNING. HIGH 16. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS CHANGING TO 70 PERCENT CHANCE OF SHOWERS NEAR MIDNIGHT. WIND SOUTH 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE EVENING. LOW 8. SOUTH OKANAGAN - INCLUDING PENTICTON. TONIGHT..MAINLY CLOUDY. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW 6. THURSDAY..MAINLY CLOUDY. WIND BECOMING SOUTH 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 18. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND SOUTH 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW 8. SIMILKAMEEN. TONIGHT..MAINLY CLOUDY. FOG PATCHES DEVELOPING AFTER MIDNIGHT. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT THIS EVENING. LOW PLUS 5. THURSDAY..MAINLY CLOUDY. FOG PATCHES DISSIPATING IN THE MORNING. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 LATE IN THE MORNING. HIGH 17. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS. LOW PLUS 3. FRASER CANYON - NORTH INCLUDING LILLOOET. TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. WIND SOUTH 40 KM/H GUSTING TO 80 DIMINISHING TO 20 GUSTING TO 40 THIS EVENING. LOW 9. THURSDAY..MAINLY CLOUDY. 40 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. WIND SOUTH 30 KM/H GUSTING TO 50. HIGH 16. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY WITH 40 PERCENT CHANCE OF SHOWERS IN THE EVENING AND AFTER MIDNIGHT. A FEW SHOWERS BEGINNING AFTER MIDNIGHT. WIND SOUTH 30 KM/H GUSTING TO 50 BECOMING LIGHT LATE IN THE EVENING. LOW 9. FRASER CANYON - SOUTH INCLUDING LYTTON. TONIGHT..MAINLY CLOUDY. PERIODS OF RAIN NEAR BOSTON BAR. AMOUNT 10 MM NEAR BOSTON BAR. WIND SOUTH 40 KM/H GUSTING TO 80. LOW 8. THURSDAY..CLOUDY. PERIODS OF RAIN BEGINNING IN THE AFTERNOON. PERIODS OF RAIN NEAR BOSTON BAR. AMOUNT 10 MM NEAR BOSTON BAR. WIND SOUTH 40 KM/H GUSTING TO 60. HIGH 18. UV INDEX 1 OR LOW. THURSDAY NIGHT..PERIODS OF RAIN. AMOUNT 20 MM NEAR BOSTON BAR. WIND SOUTH 40 KM/H GUSTING TO 60 DIMINISHING TO 20 GUSTING TO 40 LATE IN THE EVENING. LOW 11. NICOLA. TONIGHT..MAINLY CLOUDY. WIND SOUTHWEST 30 KM/H GUSTING TO 60. LOW 8. THURSDAY..MAINLY CLOUDY. WIND SOUTHWEST 30 KM/H GUSTING TO 50. HIGH 16. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. 30 PERCENT CHANCE OF SHOWERS BEFORE MORNING. WIND SOUTHWEST 30 KM/H GUSTING TO 50. LOW 8. SOUTH THOMPSON. TONIGHT..PARTLY CLOUDY. WIND SOUTHWEST 30 KM/H GUSTING TO 50 BECOMING EAST 20 THIS EVENING. LOW 8. THURSDAY..INCREASING CLOUDINESS. WIND EAST 20 KM/H BECOMING SOUTHWEST 30 GUSTING TO 50 LATE IN THE MORNING. HIGH 18. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND BECOMING SOUTHEAST 20 KM/H OVERNIGHT. LOW 12. SHUSWAP. TONIGHT..MAINLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS NEAR SICAMOUS. WIND SOUTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. LOW PLUS 5. THURSDAY..CLOUDY. SHOWERS BEGINNING LATE IN THE AFTERNOON. WIND BECOMING SOUTHEAST 20 KM/H GUSTING TO 40 LATE IN THE MORNING. HIGH 14. UV INDEX 1 OR LOW. THURSDAY NIGHT..SHOWERS. AMOUNT 10 MM NEAR BOSTON BAR. LOW 6. MANNING - SKAGIT VALLEY. TONIGHT..RAIN. AMOUNT 10 TO 15 MM. LOW PLUS 4. THURSDAY..RAIN. AMOUNT 10 MM. HIGH 8. UV INDEX 1 OR LOW. THURSDAY NIGHT..RAIN AT TIMES HEAVY. AMOUNT 10 TO 15 MM. LOW PLUS 4. END