MIDDLE LATITUDE AURORAL ACTIVITY WARNING Issued: 05:05 UTC on 14 May 2005 Solar Terrestrial Dispatch www.spacew.com VALID BEGINNING AT: 00:00 UTC 15 MAY 2005 VALID UNTIL: 23:00 UTC (6 pm EST) ON 16 MAY HIGH RISK PERIOD: 15 MAY (UTC DAYS) MODERATE RISK PERIOD: 15-16 MAY PREDICTED ACTIVITY INDICES: 14, 70, 30, 12 (14 - 17 MAY) POTENTIAL MAGNITUDE OF MIDDLE LATITUDE AURORAL ACTIVITY: MODERATE TO HIGH POTENTIAL DURATION OF THIS ACTIVITY: MAIN BELT = 12-18 HOURS MINOR BELT = 18-24 HOURS ESTIMATED OPTIMUM OBSERVING CONDITIONS: NEAR OR PRIOR TO LOCAL MIDNIGHT EXPECTED LUNAR INTERFERENCE: LOW OVERALL OPPORTUNITY FOR OBSERVATIONS FROM MIDDLE LATITUDES: GOOD AURORAL ACTIVITY *MAY* BE OBSERVED APPROXIMATELY NORTH OF A LINE FROM... (THIS LINE IS VALID *ONLY* IF FAVORABLE STORM CONDITIONS OCCUR) OREGON TO SOUTHERN IDAHO AND NORTHERN UTAH TO WYOMING TO NEBRASKA TO NORTHERN MISSOURI TO SOUTHERN ILLINOIS TO KENTUCKY TO VIRGINIA.