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>From: oler@HG.ULeth.CA (CARY OLER)
>Newsgroups: rec.radio.amateur.misc
>Subject: POTENTIAL SIGNIFICANT LOW LATITUDE AURORAL ACTIVITY WARNING
>Message-ID: <910611122013.27200d3e@HG.ULeth.CA>
>Date: 11 Jun 91 18:20:13 GMT
>Sender: daemon@ucsd.Edu
>Organization: UCSD Usenet Gateway
>Lines: 52


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                    LOW LATITUDE AURORAL ACTIVITY WARNING

                        UPDATED: 17:30 - 11 JUNE, 1991
                             VALID: 12 - 13 JUNE

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ATTENTION:

     A major interplanetary shockwave is in transit at the present time and
should arrive here at the Earth anytime near or after 06:00 UT on 12 June.
The major class X12+/3B flare which produced this shock was in a very
sensitive and well-placed position for producing high to very high
terrestrial impacts.  The energy released from the flare was also easily
sufficient to produce very high terrestrial impacts.

     A major to severe geomagnetic storm is expected to begin with the
arrival of this shockwave.  The accompanying auroral storm is also expected
to be rated as major to severe.

     Widespread and very active low latitude auroral activity is expected to
occur with this event.  There is a chance that auroral activity could become
visible as far (or further) south as Florida, central Texas, New Mexico and
California.  Australia and New Zealand are also expected to be treated to an
impressive "light show."

     This event could become the largest event since 1989 and may actually be
observed as the largest terrestrial disturbance so far this solar cycle.  The
most active day of this period should be 13 June.  At that time, geomagnetic
and auroral storming should be in the main phase.

     Some residual activity may be observed on 14 June, although the
probability for observing low-latitude auroral activity on 14 June is not
particularly high.  By that time, conditions should be decaying back toward
more quiet levels.

     It would be appreciated if observations of auroral activity could be
sent to: oler@hg.uleth.ca (particularly the lower latitudes).  If any of you
have access to the weather reports with AURBO, it would be very much
appreciated if the AURBO reports could be extracted (as-is, verbatim) and
sent to either oler@hg.uleth.ca or preferably to oler@alpha.uleth.ca.  Thanks
to all those who take the time to send in reports.

     This is a significant auroral storm warning.  Serious observers should
take the time to plan a trip to a dark-sky location for this event.


**  End of Watch  **
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