=  NOW 20 WPM  =  TEXT IS FROM DECEMBER 2020  QST  PAGE 80 =

OCCUR IN ALL MONTHS, MOST OFTEN IN THE SPRING.  IN THESE TYPES OF OPENINGS,
COOL MOIST AIR IS DRAWN NORTH UNDER WARM DRY AIR TO A STRONG LOW PRESSURE
SYSTEM.  THE SEPTEMBER 15 TROPO OPENING WAS CREATED BY A HIGH PRESSURE
SUBSIDENCE SYSTEM, WHICH WAS BLOCKED BY HURRICANE SALLY.  THE OPENING ON
SEPTEMBER 26 WAS MORE COMPLEX AND APPEARED TO BE A COMBINATION OF BOTH A
HIGH PRESSURE SYSTEM AND A WAVE CYCLONE.  STUDYING WEATHER MAPS SUCH AS THE
WEATHER CHANNELS CLASSIC SURFACE MAPS WHICH CAN BE FOUND AT AND HEPBURNS
TROPOSPHERIC FORECASTS FOUND AT MAY GIVE YOU CLUES FOR THESE OPENINGS.  ON
THE BANDS 50 MHZ.  SPORADIC E APPEARED ON SEPTEMBER 6.  K5ND EM12, K0GU
DN70, AND N0JK EM28 COPIED XE2ML DL74 ON FT8.  ON SEPTEMBER 12, XE1MEX EL09
WORKED YS1RS AND TI2CC IN THE ARRL SEPTEMBER VHF CONTEST ON ES.  METEOR
=  END OF 20 WPM TEXT  =  QST DE W1AW  <