FPCN39 CWLW 011431
SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN WEATHER CENTRE OF
ENVIRONMENT CANADA AT 7:00 AM PST THURSDAY 1 FEBRUARY 2001 FOR TODAY.
VENTILATION INDICES AND MIXING HEIGHTS.
MIXING HEIGHTS IN METRES ABOVE SEA LEVEL.
AVERAGE WINDS IN KM/HR.
SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING
HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS.
SOUTHERN INTERIOR
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
FRSR CANYON 51/FAIR 512 21 80/GOOD 675 21 39/FAIR 367 27
KAMLOOPS 23/POOR 475 19 41/FAIR 579 19 100/GOOD 1023 32
OKANAGAN 31/POOR 605 20 29/POOR 592 20 100/GOOD 1405 27
CASTLEGAR 16/POOR 573 13 38/FAIR 804 13 51/FAIR 798 22
CRANBROOK 14/POOR 997 8 86/GOOD 1434 20 70/GOOD 1301 26
REVELSTOKE 23/POOR 621 13 14/POOR 498 14 47/FAIR 724 19
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PENTICTON S 9. SW 22 SW 43
CRANBROOK W 19 W 61
CENTRAL INTERIOR
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
QUESNEL 43/FAIR 755 27 60/GOOD 690 28 62/GOOD 878 26
100 MILE 32/POOR 1094 28 60/GOOD 1136 26 100/GOOD 1642 34
WILLIAMS LK 31/POOR 1093 27 60/GOOD 1159 25 100/GOOD 1470 27
PUNTZI MNT 24/POOR 1007 22 100/GOOD 1655 22 100/GOOD 1945 27
PR. GEORGE 46/FAIR 912 29 70/GOOD 1200 31 49/FAIR 977 25
BURNS LAKE 21/POOR 812 24 70/GOOD 1200 18 35/FAIR 969 18
SMITHERS 16/POOR 593 22 12/POOR 537 13 45/FAIR 871 15
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PR. GEORGE SW 46 W 48
SMITHERS SW 37 SW 56
NORTHERN BC/YUKON
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
FT NLSN 15/POOR 425 23 14/POOR 422 28 16/POOR 468 10
FT STJOHN 20/POOR 767 33 40/FAIR 718 34 14/POOR 718 37
WHITEHORSE 13/POOR 726 29 12/POOR 709 23 27/POOR 859 21
DAWSON 16/POOR 417 25 12/POOR 379 24 17/POOR 439 10
WATSON LAKE 13/POOR 706 19 14/POOR 735 23 18/POOR 852 4
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
DEASE LAKE SW 28 SW 59
WATSON LAKE W 41 W 52
WHITEHORSE SW 37 W 57
MAYO SW 33 W 50
COAST
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
VANCOUVER 28/POOR 120 23 40/FAIR 400 37 15/POOR 29 48
FRASER VLY 17/POOR 130 21 40/FAIR 400 26 23/POOR 151 35
SRN VRISL 18/POOR 89 14 60/GOOD 1000 29 20/POOR 67 45
CNTRL VRISL 50/FAIR 282 17 60/GOOD 1000 28 68/GOOD 273 38
NRN VRISL 90/GOOD 349 39 60/GOOD 1000 50 72/GOOD 316 30
TERRACE 38/FAIR 440 23 13/POOR 245 14 12/POOR 238 14
STEWART 22/POOR 147 20 12/POOR 35 13 12/POOR 31 12
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
VANCOUVER S 40 S 54 SW 59
SANDSPIT SE 48 SE 54 S 65
PORT HARDY SE 77 S 98 S 91
VENTILATION GUIDELINES:
0-33.....POOR
34-54.....FAIR
55-100.....GOOD.
VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET
END/CC/MTNWC