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NOAA Predicts Northern Lights Visible in Northern U.S. States Monday Night

The National Oceanic and Atmospheric Administration forecast aurora visibility across northern border states on Monday night. A coronal mass ejection from the Sun may produce mild geomagnetic activity that extends the display southward.

FO
1 source·May 18, 7:30 PM(10 days ago)·1m read
NOAA Predicts Northern Lights Visible in Northern U.S. States Monday Nightyahoo.com
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U.S. states on Monday night. A coronal mass ejection that left the Sun on Saturday is expected to reach Earth and trigger minor geomagnetic storms. NOAA assigned a Kp index of five out of nine for the night, indicating the aurora may appear farther south and show increased motion and formations.

The agency placed the storms at the lowest level on its five-point scale. Even mild activity can push the aurora into the contiguous United States, according to the forecast. States with the highest chance include all of North Dakota and northern sections of Washington, Idaho, Montana, Minnesota, Wisconsin, and Michigan’s Upper Peninsula.

Northern parts of South Dakota have a slight chance, while most of Alaska has a high likelihood.

NOAA advised viewers to travel as close as possible to Earth’s magnetic north pole in Canada. Observers should select a site with a clear northern sky and minimal light pollution. m. m. local time when the aurora is typically most active. Smartphone users were told to use night mode, disable flash, shoot in RAW format, and stabilize the device with a tripod.

Key Facts

Kp index of five
out of nine for Monday night
G1 geomagnetic storm
lowest level on NOAA five-point scale
Viewing window
10 p.m. to 2 a.m. local time

Story Timeline

2 events
  1. Saturday

    A coronal mass ejection left the Sun.

    1 source@Forbes
  2. Monday night

    NOAA forecast northern lights visibility in northern U.S. states.

    1 source@Forbes

Potential Impact

  1. 01

    Residents in northern border states may travel to view the aurora.

Transparency Panel

Sources cross-referenced1
Confidence score75%
Synthesized bySubstrate AI
Word count188 words
PublishedMay 18, 2026, 7:30 PM
Bias signals removed1 across 1 outlet
Signal Breakdown
Speculative 1

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