Category: Forecast

A Storm a-Brewing

 August 31, 2025 August 31, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   12:19 pm 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 August 29, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   6:56 pm 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, […]

UTC 00:18 August 27, 2025

 August 26, 2025 August 26, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   8:27 pm 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 […]

03:02 UTC August 26, 2025

 August 25, 2025 August 25, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   11:03 pm 11:03 pm

Most places are still in clouds. A minor substorm is underway, very weak activity possible over the next hour. Strongest portion of the storm was about a half hour ago. I was availing myself of a nap, it being cloudy.  Current reading:

00:18 UTC August 25, 2025

 August 24, 2025 August 24, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   8:20 pm 8:20 pm

Welcome to the New Universal Day, 00:08 UTC. Also “Z.” Or “Zulu” time. I don’t know if the military still calls it Zulu though. But, if you get the NOAA bulletin updates, they are in “Z” time. Which is exactly the same as UTC. There is a small substorm brewing, but it will probably not […]

00:21 UTC August 24, 2025

 August 23, 2025 August 23, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   8:22 pm 8:22 pm

Welcome to the New Universal Day! Star Date 00:13 UTC, August 24, 2025. A substorm is brewing, but in the hovering around the zero demarcation variety. Low Energy Protons ramped up about an hour ago, but have since fallen off. Possible sightings on camera after it’s completely dark, but it will be weak. We can’t […]

But Wait- There’s More!

 August 22, 2025 August 22, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   7:39 pm 7:39 pm

As of Maine Time 7:38 PM: Solar Wind Speed: 496 km/sec Solar Wind Magnetic Fields: Bt 4 nT, Bz -1 nT WELL, just when I told you that I didn’t think there’d be any more activity from this period. Surprise. NOAA didn’t forecast it, either. But, I’m seeing negative solar wind trajectory. It’s not super strong but neither was last night, and plenty […]

00:00 UT August 21, 2025.

 August 20, 2025 August 20, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   8:00 pm 8:00 pm

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 August 18, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   5:49 pm 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 August 17, 2025

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    |   MaineAuroraBorealisWatch MaineAuroraBorealisWatch

    |   4:36 pm 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.