MaineAuroraBorealisWatch - Maine Aurora Borealis Watch

Greetings and welcome to the almost-new universal day. I’m writing a little bit earlier because it’s getting darker earlier. It’s clear up in the county, according to NOAA anyhow, and a look at the Katahdin webcam reveals our patron mountain in all her glory and majesty beneath a blue raspberry sky. There is a rather […]

Coronal Hole Active 4-8 September

September 4, 2025

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| MaineAuroraBorealisWatch

| 12:54 pm

Just when we thought the fun couldn’t get any funner! I will say, the moon is now going to be a definite deal breaker, at 89% full tonight, and moving on from there. However, I’m waiting for folks to mention that there’s a full lunar eclipse on the 7th. If you look at the sidebar […]

Victory Lap!

September 2, 2025

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| MaineAuroraBorealisWatch

| 7:08 pm

After veering off last night around 1 am, the IMF from last night is large and in charge this evening, hence, the big purple block of data far to the right in the above graph. We should have clear skies tonight, and, if conditions hold, hopefully those who were unable to see anything in the […]

Impact, Early.

September 1, 2025

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| MaineAuroraBorealisWatch

| 5:35 pm

Well, so much for everyone trying to figure out UT and setting alarms. Looks like the show has started. Just before 5 pm Maine time, I was either going to go clear out part of my barn or look at data. And then do the barn. I’m still here looking at data. Yes, this happens. […]

A Storm a-Brewing

August 31, 2025

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| MaineAuroraBorealisWatch

| 12:19 pm

We had a pretty decent full halo CME yesterday, which is going to lead to possibilities of good sightings on camera here in Maine. This is what a written NOAA forecast looks like, which can be found below the UTC time and kP index chart. It generally leads to confusion, because people equate the dates […]

UTC 22:55, almost tomorrow. In Space.

August 29, 2025

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| MaineAuroraBorealisWatch

| 6:56 pm

Well, at about 3 pm we had a good hit. bZ -5 nT. Aurora is absolutely viewable on camera at that level. But, it’s now not 3 pm. In fact, it can be none more 3 pm. I’m usually functioning in about three different time modalities, so- maybe it’s a moment to discuss Universal Time, […]

Current Conditions

August 26, 2025

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| MaineAuroraBorealisWatch

| 9:08 pm

UTC 01:07 August 27, 2025 Solar Wind Speed: 403 km/sec Solar Wind Magnetic Fields: Bt 8 nT, Bz -1 nT

Current Conditions

August 26, 2025

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| MaineAuroraBorealisWatch

| 8:31 pm

Conditions 00:30 UTC August 27, 2025 Solar Wind Speed: 402 km/sec Solar Wind Magnetic Fields: Bt 8 nT, Bz 3 nT

UTC 00:18 August 27, 2025

August 26, 2025

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| MaineAuroraBorealisWatch

| 8:27 pm

Welcome to the new universal day! A minor substorm is underway, with readings fluctuating just on either side of the line between what is negative and what is positive- which, frustratingly, NOAA often denotes as -0. They don’t always. But it does happen, and if you read ACE data, coming through on the old DISCOVR […]