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 211430 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 TUESDAY 21 MAY 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 26 12 700 4 92 19 2650 6 KAMLOOPS KEL 34 12 1000 4 100 20 3350 7 OKANAGAN KEL 20 10 650 4 100 19 3350 7 CASTLEGAR GEG 28 10 800 7 95 18 2450 8 CRANBROOK GEG 9 9 950 9 100 16 3950 11 REVELSTOKE KEL 31 11 1000 4 76 16 2350 5 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PENTICTON VR 5 SE 13 SE 22 CRANBROOK VR 5 S 11 INVERSION HT BREAKTHRU TEMP KELOWNA 700 m 9 C SPOKANE 1040 m 12 C TODAY'S VENTING: While more stable than yesterday, venting will still become good by afternoon. VENTING FOR WEDNESDAY: GOOD VENTING OUTLOOK THURSDAY THRU SATURDAY: Good Thursday. Possibly only fair Friday and Saturday under a weak ridge. 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. 82 18 3950 4 82 15 3950 4 PR. GEORGE P.G. 19 8 1100 3 79 14 3700 4 SMITHERS ANN 66 8 1500 8 99 14 3500 6 WELLS GRAY P.G. 42 9 2150 3 82 16 4000 4 FT NLSN F.N. 13 10 500 3 22 15 700 4 FT STJOHN F.N. 9 11 700 5 92 15 2950 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 TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m PR. GEORGE VR 5 SE 15 SMITHERS VR 5 VR 15 INVERSION HT BREAKTHRU TEMP PR. GEORGE 930 m 8 C FT. NELSON 720 m 14 C TODAY'S VENTING: Venting will continue good across the Central Interior under an unstable airmass. Fort Nelson lie north of the Maritime front where the deep surface layer will be difficult to break. VENTING FOR WEDNESDAY: GOOD VENTING OUTLOOK THURSDAY THRU SATURDAY: Dropping to fair under a building ridge. COAST UPPER ***** MORNING ****** ***** AFTERNOON **** AIR VI Tmp MXG HT Wnd VI Tmp MXG HT Wnd (mASL) (kt) (mASL) (kt) VANCOUVER QUIL 50 12 800 7 99 16 2200 8 FRASER VLY QUIL 44 12 700 7 100 17 2450 8 SRN VRISL QUIL 24 11 300 6 93 16 2000 8 CNTRL VRISL QUIL 21 10 250 6 83 15 1600 7 NRN VRISL HRDY 18 9 250 4 100 13 1750 11 TERRACE ANN 76 10 1250 10 100 16 3200 6 STEWART ANN 68 11 850 9 93 16 2200 7 *SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS. FORECAST UPPER WINDS FOR TUESDAY AFTERNOON (WINDS IN KM/H): 900m 1800m 2700m VANCOUVER VR 5 VR 5 S 13 PORT HARDY NW 11 VR 5 S 13 SANDSPIT VR 5 VR 5 E 11 INVERSION HT BREAKTHRU TEMP QUILLAYUTE 310 m 11 C PORT HARDY 90 m 8 C ANNETTE 90 m 9 C TODAY'S VENTING: Good. Airmass remains unstable at lower levels. VENTING FOR WEDNESDAY: GOOD VENTING OUTLOOK THURSDAY THRU SATURDAY: Good Thursday. Possibly only fair Friday and Saturday as a weak ridge forms. 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: 22:00:27 This session: 00:01:21 --------Total Usage time: 22:01:48 Today's usage time: 00:06:49 This month's usage time: 02:15:23 ----This account expires: 12/31/96 NO CARRIER