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ARRL Propagation Bulletin ARLP048 (2001)

ARLP048 Propagation de K7VVV

QST de W1AW  
Propagation Forecast Bulletin 48  ARLP048
From Tad Cook, K7VVV
Seattle, WA  November 21, 2001
To all radio amateurs 

ARLP048 Propagation de K7VVV

Because of the short work week and ARRL headquarters schedule, this
bulletin will arrive early and without the solar flux, sunspot
numbers and geomagnetic data at the end. This is because the
reporting week runs Thursday through Wednesday, and the data for
Wednesday isn't quite available yet. Watch for it in the next

N8II reported the best European 6 meter opening of this solar cycle
occurred on Friday, November 16. Jeff is in West Virginia in grid
FM19, and said he worked 117 Europeans from 1340-1728z. He said
British calls dominated, but he also worked as far east as Poland
and Bulgaria. Europeans were working as far west as Ohio, Michigan,
Arkansas and Texas.

It has been a quiet week, with no big geomagnetic upsets. The most
active day was Monday, when the planetary A index was 16 and K
indices went as high as 4. Solar flux and sunspot numbers have been

The latest projection calls for solar flux of 180, 175, 170, 170 and
175 for Wednesday through Sunday, and planetary A indices of 10, 10,
10, 8 and 8 for those same days. Although the forecast is for
moderate A indices, there is a chance that sunspot 9704 could emit
some earth-directed explosions in the next day or two.

Early Sunday morning I witnessed a wonderful Leonids display. We
rose at midnight local time, and drove east of Seattle to search for
a dark spot for viewing the meteor shower. We didn't have any VHF
gear, but were determined to take advantage of a rarely seen clear
Northwest night. At Rattlesnake Lake, about 32 miles east of Seattle
on I-90, the road was completely packed with cars and people,
resembling an Independence Day evening in the city.

Armed with the GPS and laptop, we finally drove high into the
Cascade Mountains and up a Forest Service road west of Snoqualmie
Pass near the Alpine Lakes region. We parked at a trail head where
many others were gathered in the dark to witness the display, and
lay on the ground until 4:30 AM local time, in awe at a sky lit with
meteor trails. Returning to the city, we could still see meteorites
streaking across the sky at 6:00 AM, just before sunrise.


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