Please wait...checking for disk quotas [H[2J" The Government of Canada expressly disclaims any warranties or representations with respect to the Environment Canada Electronic Weather Bulletin Board Service, either expressed or implied, including but not limited to, the implied warranties of fitness for the purpose of accessing meteorological, climatological or other data. In no event will the Government of Canada have any obligation arising from contract or tort, or for loss of revenue or profit, or for indirect, special, incidental or consequential damages arising from the use of this information." If you observe SEVERE weather, or have technical problems with one of our services, such as WeatherBoard, WeatherFax, etc., please call 664-9028. *** NEWS: Samples of GOES-90 satellite images and RAVOS remote photographs are now downloadable from Basic User Menu/New Sample Menu. Welcome to Environment Canada's WeatherBoard Service... If you are not a subscriber yet, enter basic when asked to login. 2 FPCN39 CWLW 281446 SMOKE CONTROL FORECAST FOR COASTAL BC AND THE INTERIOR INCLUDING THE NORTHEAST ISSUED BY THE MOUNTAIN WEATHER SERVICE OFFICE OF ENVIRONMENT CANADA AT 8:00 AM PDT SUNDAY 28 JULY 1996 FOR TODAY. VENTILATION INDICES (TEMPERATURE) AND MIXING HEIGHTS. MIXING HEIGHTS IN METRES ABOVE SEA LEVEL. AVERAGE WINDS IN KNOTS. SPOT INDICES ARE DETERMINED BY THE ASPECT AND ELEVATION OF THE SITES. COMPARE WINDS, TEMPERATURES AND ELEVATION WITH THE SITES HERE TO DETERMINE THE INDEX IN ANY OTHER AREA. SOUTHERN INTERIOR UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) FRSR CANYN KEL 21 27 750 2 84 38 3200 4 KAMLOOPS KEL 17 25 750 2 40 34 1550 3 OKANAGAN KEL 16 24 650 2 54 35 1700 4 CASTLEGAR GEG 17 23 750 3 33 33 1150 4 CRANBROOK GEG 9 22 950 7 41 30 1450 7 REVELSTOKE KEL 12 22 550 2 31 30 1250 3 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON CRANBROOK INVERSION HT BREAKTHRU TEMP KELOWNA 1490 m 33 C SPOKANE 1140 m 31 C TODAY'S VENTING: FAIR DUE TO DEEP SURFACE INVERSION EXCEPT IN THE CANYON WHERE SURFACE WINDS WILL HELP MIXING. VENTING FOR MONDAY: FAIR VENTING OUTLOOK TUESDAY THRU THURSDAY: IMPROVING TO GOOD ALL REGIONS LATE TUESDAY AS SURFACE WINDS INCREASE WHEN AIRMASS DESTABILIZES BEHIND COLD FRONT. CENTRAL INTERIOR/NORTHEAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) WILLIAMS L P.G. 9 19 950 7 100 28 3950 6 PR. GEORGE P.G. 9 19 700 2 46 29 1800 4 SMITHERS ANN 32 21 950 6 100 29 3500 7 WELLS GRAY P.G. 9 20 1000 7 100 30 4000 6 FT NLSN F.N. 9 6 400 5 34 30 1000 5 FT STJOHN F.N. 9 20 700 4 21 27 1000 4 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE SMITHERS INVERSION HT BREAKTHRU TEMP PR. GEORGE 1000 m 27 C FT. NELSON 750 m 28 C TODAY'S VENTING: POOR AT LOW ELEVATIONS WHILE GOOD AT HIGHER ELEVATIONS DUR TO STEEP, BUT SHALLOW SURFACE INVERSION. VENTING FOR MONDAY: FAIR VENTING OUTLOOK TUESDAY THRU THURSDAY: IMPROVING TO GOOD ALL REGIONS LATE TUESDAY AS SURFACE WINDS INCREASE WHEN AIRMASS DESTABILIZES BEHIND COLD FRONT. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 9 21 250 0 11 24 300 1 FRASER VLY QUIL 9 23 300 0 42 31 1450 3 SRN VRISL QUIL 9 20 250 0 11 25 350 1 CNTRL VRISL QUIL 9 23 300 0 43 31 1450 3 NRN VRISL HRDY 24 15 300 6 40 19 550 7 TERRACE ANN 21 20 350 8 61 26 1600 5 STEWART ANN 18 19 250 4 52 26 900 6 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR SUNDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER S 7 SW 22 SW 28 PORT HARDY SW 20 SW 15 S 22 SANDSPIT NW 7 SE 7 SE 26 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 440 m 27 C PORT HARDY 830 m 27 C ANNETTE 430 m 22 C TODAY'S VENTING: POOR UNDER STRONG SURFACE INVERSION. FAIR AT HIGHER ELEVATIONS. VENTING FOR MONDAY: FAIR VENTING OUTLOOK TUESDAY THRU THURSDAY: GOOD AS AIRMASS DESTABILIZES BEHIND COLD FRONT. VENTILATION GUIDELINES: 0-33.....POOR 34-54.....FAIR 55-100.....GOOD. VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET. END/PJS -------------------------------------------------- Special Industry Related Information -------------------------------------------------- 1 - Smoke Forecast, Coast 2 - Smoke Forecast, Interior Q - Return to Previous menu -------------------------------------------------- l Previous usage time: 28:23:40 This session: 00:01:19 --------Total Usage time: 28:24:59 Today's usage time: 00:05:16 This month's usage time: 02:17:44 ----This account expires: 12/31/96