Forecast - Maine Aurora Borealis Watch

Welcome to the new Universal Day. A substorm is developing right now, but, not a big one. Clouds are clearing out over much of the state. The webcam is showing clearing over Katahdin. Any viewing will happen just at dark, and I don’t know for how long. The GOES sun image isn’t showing a coronal […]

Forecast August 18-19 UTC 21:43

August 18, 2025

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| MaineAuroraBorealisWatch

| 5:49 pm

A weak substorm is developing. Stay tuned. We had a pretty good hit during the day, headed north but starting to dip down again. Current readings: Solar Wind Speed: 365 km/sec Solar Wind Magnetic Fields: Bt 11 nT, Bz -2 nT NOAA is forecasting increased geomagnetic activity around 11 pm our time, according to the three day forecast. If you look at the […]

Forecast: 00:20 UTC August 17, 2025.

August 17, 2025

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| MaineAuroraBorealisWatch

| 4:36 pm

Welcome to the New Universal Day, Star Date 00:20 UTC August 17. A mild substorm is in progress. Solar Wind Speed: 344 km/sec, Solar Wind Magnetic Fields: Bt 4 nT, Bz -1 nT. May get a little stronger, with things kind of maxing out in another hour or so. Possible sightings on camera as soon as it is dark.

Forecast: Long Range, August 16-21 2025

August 16, 2025

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| MaineAuroraBorealisWatch

| 9:52 pm

Good evening! I don’t usually forecast this far in advance, but, with the new tool of the blog, it’s a little easier! Things get buried pretty quickly on the Facebook group, so a long-range is not that useful. True, “long range” in aurora forecasting is kind of impossible, as I am constantly telling you, but […]

00:40 UTC August 16, 2025

August 16, 2025

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| MaineAuroraBorealisWatch

| 12:42 am

Not much chance of aurora tonight- there is a very weak geomagnetic storm that will most likely be drowned out by the 52% moon when it rises in a couple hours. It’s clear though, so in the morning, we might be able to see Mercury joining the Venus and Jupiter line-up. Saturn was seemingly behind […]

Forecast: August 15 UTC 5:48

August 15, 2025

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| MaineAuroraBorealisWatch

| 5:58 am

1:48 am Maine earth time/5:48 UTC a very weak substorm is developing. If you are in the clear, in a situation of non-light pollution and conditions IMPROVE very slightly, there is a possibility of sighting on camera. Still struggling with the moon. Actually conditions are improving. Our current numbers are Solar Wind Speed: 435 km/sec, […]

August 14-15

August 15, 2025

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| MaineAuroraBorealisWatch

| 12:14 am

Good evening and welcome to a late “welcome to the new universal day.” Most of the Great State of Maine is socked in clouds currently, but Laurie, one of our admin team on the MABW, alerted me to the fact that Northern Aroostook is not. There is a VERY weak substorm in progress, and if […]

August 12-13

August 13, 2025

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| MaineAuroraBorealisWatch

| 3:15 am

Welcome to the new universal day, Star Date 00:00 UTC August 13, 2025. We’re having a very small substorm burst right now, probably absolutely no way of seeing anything with the brightness of the moon still, but, it’s happening and who knows. Even if you don’t see an aurora, it is an absolutely gorgeous night […]

November 11-12, 2025
Current G4 storming, severe level. For those like me who are in very cloudy conditions- We may get another very strong burst in an hour, and the clouds may clear out at that point for a couple hours. We may get some serendipity. For those like me who are in very cloudy conditions- We may get another very strong burst in an hour, and the clouds may clear out at that point for a couple hours. Sunspot Region 4274 produced an X 5.1 flare (R-3-Strong) Tuesday, November 11, 2025 at 13:43 UTC. We should see the effects of this in multiple CME occurrences between now and November 13. As of UTC rollover time, geomagnetic storm conditions are anticipated to continue into the night. An enhancement of the arriving IMF may hit within the hour, Maine time 11 pm. Southern Maine is reporting clear skies and photos of the aurora are being posted on the Facebook group. Midcoast, Central, Downeast, and Northern Maine are in the clouds, but clearing may occur. during the next burst. Current conditions now, 21:38 Maine Time Solar Wind Speed: 407 km/sec Solar Wind Magnetic Fields: Bt 35 nT, Bz -9 nT Current conditions about 15 minutes ago: Solar Wind Magnetic Fields: Bt 37 nT, Bz -24 nT Solar Wind Speed: 457 km/sec

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Category: Forecast

00:00 UT August 21, 2025.

Forecast August 18-19 UTC 21:43

Forecast: 00:20 UTC August 17, 2025.

Forecast: Long Range, August 16-21 2025

00:40 UTC August 16, 2025

Forecast: August 15 UTC 5:48

August 14-15

August 12-13