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 5
******************************************************************* Everest forecast - From WNI and AdventureWeather.com By ExplorersWeb ******************************************************************* WNI Headline: Satellite imagery shows a widespread area of middle and high level cloud across the Northern half of Nepal extending well north of ME into China. This broad expanse of cloud is associated with an upper level trough moving though the area. The trough will push to the east of the Indian peninsula tomorrow and in its wake a ridge of high pressure is building into the area. At the surface the monsoon trough has pushed north of Sri Lanka across the southern peninsula. A tropical cyclone has formed to the east over the Arabian Sea, indicative of the fact that the monsoon is quite active right now across the Indian Ocean. It as the tropical cyclone moves northwestward it will help pull the monsoon trough further northward. Snow showers this morning will taper off today, and by Friday dryer air and lighter winds will bring better climbing conditions. Look for a weak trough to pass through around the weekend and into early next week. The trough is forecasted to slightly increase the winds as well as increase the chances for isolated snow showers especially at levels below 7000m. Northern/Southern Routes: Below 7500m - Westerly winds today will ease to around 10 m/s. and turn more W-NW'erly. On Friday winds are forecasted to be out of the W-NW and be below 10 m/s. A weak trough moving into the area is expected to increase the winds to 10-15 m/s by the weekend and early next week. Snow showers will clear tonight. Clouds will increase on Friday with a good chance for showers late on Saturday and through early next week. Above 7500m - Westerly winds will ease to 15-20 m/s (24 m/s at Summit 2). The winds will remain at about 12-17 m/s on Friday before increasing to 18-24 m/s through the weekend. A tighter pressure gradient is possible late on Sunday into Monday which may increase the winds to 20-27 m/s. Dry conditions throughout the period with a few clouds possible otherwise look for a high sun. Overall look for the winds to ease further through to Friday and turn more NW'erly. Forecasts call for a slight increase in winds on Saturday and through early next week. Rain chances should diminish by Thursday with chances increasing this weekend below 7500m. ************************************************************************ Forecast for Mount Everest produced by Weathernews Americas Inc. Based on AVN forecasts from: 05 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 05 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5048 5788 6588 7464 8438 9546 Temp (deg C) -5 -11 -17 -22 -26 -30 Rel Hum (%) 82 101 97 62 9 0 Wind (m/s) 09 10 11 17 28 37 Wind Dir 245 255 270 275 270 270 May 05 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5054 5799 6603 7480 8453 9555 Temp (deg C) -4 -9 -16 -22 -27 -32 Rel Hum (%) 55 54 66 76 86 40 Wind (m/s) 09 09 10 10 15 27 Wind Dir 320 330 335 310 280 275 May 06 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5092 5839 6644 7521 8497 9606 Temp (deg C) -2 -9 -16 -21 -25 -30 Rel Hum (%) 13 17 29 25 -0 -0 Wind (m/s) 03 04 07 11 19 28 Wind Dir 355 350 350 325 300 290 May 06 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5109 5860 6672 7557 8539 9649 Temp (deg C) -2 -7 -13 -19 -24 -30 Rel Hum (%) 34 28 22 27 24 20 Wind (m/s) CALM 03 03 07 14 23 Wind Dir 25 05 320 305 295 May 07 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5134 5887 6700 7590 8578 9693 Temp (deg C) -0 -7 -12 -18 -23 -30 Rel Hum (%) 48 70 84 31 11 9 Wind (m/s) 05 03 03 07 14 20 Wind Dir 225 245 295 300 305 305 May 07 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5111 5868 6691 7590 8585 9700 Temp (deg C) -1 -4 -9 -15 -22 -30 Rel Hum (%) 59 44 32 24 7 20 Wind (m/s) 07 05 05 08 13 19 Wind Dir 270 275 310 310 295 290 May 08 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5114 5870 6688 7583 8576 9687 Temp (deg C) 1 -5 -11 -16 -23 -31 Rel Hum (%) 48 69 95 16 7 25 Wind (m/s) 06 06 07 12 16 20 Wind Dir 250 265 280 265 265 275 May 08 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5087 5844 6666 7566 8560 9675 Temp (deg C) -1 -4 -9 -15 -22 -30 Rel Hum (%) 55 42 28 13 0 7 Wind (m/s) 10 10 08 11 17 23 Wind Dir 285 295 295 285 280 285 May 09 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5095 5851 6670 7566 8560 9670 Temp (deg C) 0 -5 -10 -16 -23 -31 Rel Hum (%) 57 74 20 -0 9 12 Wind (m/s) 07 09 11 14 19 24 Wind Dir 265 280 290 285 285 285 May 09 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5084 5841 6664 7564 8559 9671 Temp (deg C) -1 -4 -9 -15 -22 -31 Rel Hum (%) 51 40 23 -0 4 18 Wind (m/s) 12 11 12 16 21 27 Wind Dir 280 285 295 295 290 285 May 10 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5090 5845 6662 7555 8544 9653 Temp (deg C) 1 -5 -12 -17 -24 -31 Rel Hum (%) 24 31 32 41 67 99 Wind (m/s) 10 12 14 20 24 29 Wind Dir 265 275 280 280 270 270 May 10 18 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5067 5820 6641 7539 8534 9650 Temp (deg C) -2 -5 -10 -16 -22 -30 Rel Hum (%) 37 34 25 2 1 62 Wind (m/s) 10 11 12 18 25 32 Wind Dir 270 280 290 290 285 280 May 11 06 UTC 550mb 500mb 450mb 400mb 350mb 300mb Height (m) 5055 5813 6632 7528 8521 9637 Temp (deg C) 1 -5 -11 -16 -22 -30 Rel Hum (%) 45 58 26 -0 -0 1 Wind (m/s) 09 11 16 22 28 34 Wind Dir 250 265 275 275 275 275 Safe Climbing! WNI/TPLC Forecaster: Koop |
RMH 
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