FPCN39 CWLW 281400
SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN
WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 7:00 AM PDT FRIDAY
28 APRIL 2000 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 100/GOOD 1352 18 100/GOOD 1319 21 100/GOOD 1602 15
KAMLOOPS 100/GOOD 1490 22 100/GOOD 2166 31 100/GOOD 2131 21
OKANAGAN 100/GOOD 1764 18 100/GOOD 2217 22 100/GOOD 2317 15
CASTLEGAR 100/GOOD 1789 14 100/GOOD 2641 16 100/GOOD 2030 12
CRANBROOK 100/GOOD 1992 24 49/FAIR 1187 20 100/GOOD 2979 16
REVELSTOKE 100/GOOD 1483 12 100/GOOD 2209 14 100/GOOD 2000 11
FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PENTICTON SE 12 S 24 SW 44
CRANBROOK 0 0 S 19
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 100/GOOD 2123 23 100/GOOD 3471 36 100/GOOD 3246 24
100 MILE 100/GOOD 2249 18 100/GOOD 3065 35 100/GOOD 2977 23
WILLIAMS LK 100/GOOD 2486 23 100/GOOD 3593 34 100/GOOD 3220 21
PUNTZI MNT 100/GOOD 2356 22 100/GOOD 3867 36 100/GOOD 2810 23
PR. GEORGE 100/GOOD 2445 25 100/GOOD 3822 32 100/GOOD 3281 17
BURNS LAKE 100/GOOD 1476 13 100/GOOD 2369 22 100/GOOD 2520 21
SMITHERS 86/GOOD 1382 10 100/GOOD 2473 14 100/GOOD 1848 18
FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PR. GEORGE SE 54 SE 46
SMITHERS E 52 SE 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 32/POOR 839 34 100/GOOD 1948 9 100/GOOD 3557 30
FT STJOHN 100/GOOD 1748 26 100/GOOD 3528 26 100/GOOD 3486 36
WHITEHORSE 25/POOR 959 6 68/GOOD 1162 20 100/GOOD 1882 29
DAWSON 34/FAIR 548 24 100/GOOD 1485 20 79/GOOD 1142 19
WATSON LAKE 99/GOOD 1230 32 100/GOOD 1854 23 100/GOOD 2867 31
FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
DEASE LAKE SE 30 SE 26
WATSON LAKE SW 9 S 15
WHITEHORSE S 9 SE 19
MAYO S 13 S 15
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 100/GOOD 695 50 67/GOOD 314 33 79/GOOD 658 18
FRASER VLY 100/GOOD 748 29 100/GOOD 680 23 100/GOOD 1346 10
SRN VRISL 100/GOOD 606 36 100/GOOD 924 33 47/FAIR 408 14
CNTRL VRISL 100/GOOD 660 34 100/GOOD 971 30 99/GOOD 764 17
NRN VRISL 100/GOOD 459 43 100/GOOD 571 33 100/GOOD 448 41
TERRACE 63/GOOD 741 10 100/GOOD 1585 9 100/GOOD 829 16
STEWART 20/POOR 284 11 28/POOR 291 9 30/POOR 189 18
FORECAST UPPER WINDS FOR FRIDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
VANCOUVER SE 53 S 72 S 91
SANDSPIT NE 37 E 39 E 44
PORT HARDY SE 74 SE 91 S 83
VENTILATION GUIDELINES:
0-33.....POOR
34-54.....FAIR
55-100.....GOOD.
VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET
END/MtnWC
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