Tag: weather

Geomagnetic storm predicted

NOAA forecasters say there is a 65% chance of polar geomagnetic storms on Sept. 27th, increasing to 80% on Sept. 28th, as a stream of high-speed solar wind buffets our planet’s magnetic field

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Hurricane Watch Net Currently Not Active but Still Eyeing José

The Hurricane Watch Net (HWN) suspended operations for Hurricanes Irma, José, and Katia on September 11 at 2100 UTC, after being continuously active for more than 6 days, said HWN Manager Bobby Graves, KB5HAV. Now, Hurricane José, a Category 1 storm, is the sole storm in the HWN’s sights.

“We remain at Alert Level 2 — Monitoring Mode,” Graves said. “People along the US East Coast should closely monitor this storm, as they could possibly be affected early next week.”

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Moderate Geomagnetic Storm Watch Issued

The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC) has issued a moderate (G2) geomagnetic storm watch for September 13. A coronal hole high-speed stream, originating from a recurrent, positive polarity coronal hole on the Sun’s surface, prompted the prediction. Minor (G1) geomagnetic storming is possible on September 14.

 

It’s been a turbulent time on the…

For the full article, http://www.arrl.org/news/view/moderate-geomagnetic-storm-watch-issued

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Caribbean Emergency and Weather Net Requests Clear Frequencies

With the passage of Hurricane Irma, radio amateurs in the Eastern Caribbean have been extremely busy passing information into and out of the affected area, Eric Mackie, 9Z4CP, told ARRL.

“The Caribbean Emergency and Weather Net (CEWN) has been facilitating this exercise,” Mackie said. “We have however, been experiencing QRM from stateside stations from time to time.”

Mackie said the CEWN is askin…

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Solar flare causes ‘Ground Level Event’

Sunday’s powerful X8-class solar flare from departing sunspot AR2673 accelerated a swarm of protons toward Earth, producing a strong solar radiation storm and a ‘ground level event’ (GLE)
For the full article, http://www.southgatearc.org/news/2017/september/solar-flare-causes-ground-level-event.htm

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Space Weather Prediction Center Says Solar Phenomena May Continue

The Space Weather Prediction Center (SWPC) said today that G4 (Severe) geomagnetic storm levels were observed at 2350 UTC on September 7 and again at 0151 UTC and 1304 UTC on September 8, due to the effects of a coronal mass ejection (CME). A G3 (Strong) or greater warning was in effect until 1500 UTC today.

Solar flares have adversely affected HF nets attempting to gather information on the thr…

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Solar Flares Spark Radio Blackouts, Auroral Displays Possible

NOAA’s Space Weather Prediction Center (SWPC) has issued a strong (G3) geomagnetic storm watch for September 7 through September 9. The SWPC said the watch for September 7 remains in effect due to the arrival of a coronal mass ejection (CME) and the effects of a CME on September 4.

“Additionally, a G3 watch is now in effect for the 8 and 9 September UTC days in anticipation of the arrival of ano…

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RED ALERT – Aurora Now!

The current disturbance level is at 309.7nT. Pity we have clouds in Birmingham (UK) but they have quite a nice pink tinge to them.

Space Weather Prediction Center Upgrades Geomagnetic Storm Watch to G3 (Strong)

NOAA’s Space Weather Prediction Center (SWPC) has upgraded its geomagnetic storm watch for today and tomorrow (September 6 and 7) to G3 (Strong).

“The G3 Watch is in anticipation of the expected arrival of a coronal mass ejection (CME) that took place in association with an M5 flare,” the SWPC said. The Center said its current analysis and forecasts indicate that the CME will arrive late on Sept…

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Caribbean Hurricane Irma Frequencies

Hurricane Irma is getting widespread news coverage and will affect many countried in the Carribean. There are the usual American nets set up to gather information on the storm on 14.265 and 14.325MHz. Cesar Pio Santos, HR2P Emergency Communications Co-Ordinator for IARU Region 2 also reminds us of the following frequencies which may be in use in the area.  As always, for those frequencies within the Region 1 frequency allocations, please take steps to avoid interference to emergency operations.

Dominican Republic
80 meters 3,780 kHz
40 meters 7,065 Khz

Cuba
40 meters Daytime 7,110 kHz as primary frequency, and 7,120 kHz as secondary frequency
Frequencies 7,045, 7,080 kHz for Provincial Network.
80 meters Night time 3,740 kHz as primary frequency, and 3,720 kHz as secondary frequency.

Puerto Rico
80 meters Primary Frequency 3,873 kHz 3,815 kHz Secondary Frequency
40 meters Primary Frequency 7,182 kHz 7,255 kHz Secondary Frequency
20 meters Primary Frequency 14,330 kHz
15 meters Primary Frequency 21.360 kHz
10 meters Primary Frequency 28.330 kHz……

 

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Amateur Radio Preparations Ramp Up as Irma Strengthens to Category 5

Hurricane Irma, making its way through the Caribbean with the possibility of affecting South Florida by week’s end, has, in the words of the National Hurricane Center (NHC), become “an extremely dangerous category 5 hurricane.” The NHC urged that hurricane preparations be rushed to completion in areas now under hurricane warnings.

As of 1200 UTC, Hurricane Irma was some 270 miles east of Antigua…

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