Wind storm | hurricane | Height m/s 1 5 10 15 | 20 25 30 | 35 40 45 | Base C1 C2 C3 C4 Summ1 Summit2 Km/h 4 18 36 54 | 72 90 108| 126 144 162 | 6139 6748 7091 7499 8249 8854 9192 m Kt 2 10 19 29 | 39 49 58 | 68 78 87 | 19009 21007 22132 23471 25932 27917 29025 ft
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May 20
WNI Headline: Latest satellite imagery shows a great deal of mid to high level clouds throughout the northern half of Nepal and well into China. A low just north of the ME area will quickly be pushed to the north and east resulting in lighter winds but a chance of snow at lower levels for the next few days. Models continue to forecast fairly light to moderate winds (around 5-12 m/s) throughout the period. Look for the winds to be mainly out of the NW'erly direction. Upper level trough located north of India could dig closer to the ME area by mid to late next week resulting in an increase in winds with a period of drier weather. Monsoon is forecasted to slowly move north into parts of the southeast Bay of Bengal. Below 7500m - Look for the winds today to be around 5-10 m/s and ease by Friday morning. Winds throughout the forecasting period are expected to be lighter in the mornings (around 5 m/s) and increase slightly during the afternoons to evenings (5-10 m/s). There is a chance the winds could be around 5-10 m/s on Tuesday and Wednesday of next week due to the possible incoming upper level jet. Heavy snow chances are high today and tomorrow with more widespread showers through the weekend. A period of dry weather is a possibility at the start of next week. Above 7500m - Winds today will be a bit windy 10-15 m/s with the high end near the Summits. Winds should ease a bit this afternoon and increase slightly tomorrow (5-10 m/s). Look for the winds to be around 5-9 m/s throughout most of the period. Winds could increase around the mid to late next week due to the possible incoming upper level trough. There is enough moisture today and through most of the weekend for cloud cover at higher elevations. A period of dry weather is currently in the forecast around the middle of next week. Safe Climbing. Forecast for Mount Everest produced by Weathernews Americas Inc. Based on AVN forecasts from: 20 May, 2004, 06 UTC South Base Camp1 Camp2 Camp3 Camp4 Summit1 Summit2 Route 5400m 6100m 6700m 7500m 8000m 8500m 8848m North Base Adv CampI CampII CampIII Summit Route 5150m 6500m 7000m 7800m 8300m 8848m May 20 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5030 5789 6611 7512 8512 9639 Temp (deg C) 0 -5 -10 -15 -20 -26 Rel Hum (%) 100 100 99 100 99 62 Wind (m/s) 08 08 09 10 13 17 Wind Dir 235 260 265 260 270 285 May 20 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5027 5785 6609 7510 8505 9625 Temp (deg C) -0 -4 -9 -15 -22 -29 Rel Hum (%) 100 96 74 81 99 90 Wind (m/s) 09 10 09 07 04 08 Wind Dir 280 290 315 335 270 250 May 21 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5029 5791 6614 7513 8507 9626 Temp (deg C) 2 -3 -9 -16 -22 -28 Rel Hum (%) 87 85 54 73 98 94 Wind (m/s) 05 03 04 05 10 12 Wind Dir 250 280 290 250 245 250 May 21 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5018 5778 6600 7499 8495 9617 Temp (deg C) 1 -4 -10 -16 -21 -28 Rel Hum (%) 77 62 75 81 99 100 Wind (m/s) 12 11 11 08 02 04 Wind Dir 290 310 330 345 45 190 May 22 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5038 5799 6623 7522 8516 9634 Temp (deg C) 2 -4 -9 -16 -22 -29 Rel Hum (%) 82 76 45 77 99 95 Wind (m/s) 04 04 04 02 05 07 Wind Dir 270 300 325 305 235 235 May 22 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5045 5805 6629 7529 8521 9637 Temp (deg C) 1 -4 -9 -16 -23 -29 Rel Hum (%) 90 58 43 45 66 100 Wind (m/s) 09 07 07 06 04 04 Wind Dir 285 315 355 15 25 230 May 23 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5067 5827 6650 7549 8543 9659 Temp (deg C) 2 -4 -9 -16 -22 -29 Rel Hum (%) 65 78 32 14 65 83 Wind (m/s) 03 CALM 02 03 05 05 Wind Dir 240 300 235 250 270 May 23 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5074 5833 6657 7559 8554 9670 Temp (deg C) -0 -4 -9 -15 -22 -29 Rel Hum (%) 93 68 71 91 101 100 Wind (m/s) 08 06 04 04 03 04 Wind Dir 280 305 350 40 95 205 May 24 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5083 5845 6669 7570 8565 9683 Temp (deg C) 2 -3 -9 -15 -22 -29 Rel Hum (%) 70 42 47 49 42 1 Wind (m/s) 05 04 03 03 05 05 Wind Dir 265 290 295 265 255 265 May 24 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5083 5841 6666 7569 8568 9688 Temp (deg C) 0 -4 -8 -15 -21 -29 Rel Hum (%) 61 67 75 78 72 34 Wind (m/s) 10 08 03 02 02 04 Wind Dir 285 290 335 40 200 215 May 25 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5075 5838 6663 7567 8566 9688 Temp (deg C) 3 -3 -8 -14 -21 -29 Rel Hum (%) 60 59 34 3 9 31 Wind (m/s) 06 06 05 06 07 07 Wind Dir 265 280 285 265 245 230 May 25 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5072 5830 6656 7561 8562 9683 Temp (deg C) -0 -3 -8 -14 -21 -28 Rel Hum (%) 43 45 46 30 6 2 Wind (m/s) 09 08 04 02 03 05 Wind Dir 280 295 310 330 265 255 May 26 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5081 5840 6662 7563 8560 9682 Temp (deg C) 1 -4 -9 -15 -21 -28 Rel Hum (%) 37 46 8 4 4 0 Wind (m/s) 08 08 09 09 10 12 Wind Dir 270 280 290 280 260 250 Safe Climbing! WNI/TPLC Forecaster: Lee |
RMH 
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