Francine update September 10, 2024 Noon Eastern: ARRL Director of Emergency Management Josh Johnston, KE5MHV, just participated in a call...
Weather
Eight new sunspot groups emerged over the past week. Two appeared on August 30, three more on August 31, another...
In late August, Hawaii’s big island was threatened by three major tropical storms and amateur radio operators were prepared to...
"ASWFC GEOMAGNETIC DISTURBANCE WARNING ISSUED AT 0200 UTC/29 AUGUST 2024 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. The solar wind...
We had a good week for HF propagation, at least until we had a Kp index of 5.67 on Wednesday,...
Ten new sunspot groups appeared over this reporting week (August 15-21), but both solar flux and sunspot numbers were lower,...
With sunspot numbers and solar flux at times both above 300, recent daily space weather has been exciting for radio...
By: Frank Donovan, W3LPL Editor’s note: This article was written earlier in the week. The latest measurements show even higher...
Thursday, August 15, 2024 Midday Update: The National Hurricane Center reports that Tropical Storm Ernesto had become a Category 1...
"ASWFC GEOMAGNETIC DISTURBANCE WARNING ISSUED AT 0211UT/09 AUGUST 2024 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. "Recent CME activity is...
Hurricanes can cause widespread destruction, so early forecasting of their strength is important to protect people and their homes. The...
Big increase in solar activity this week, with average daily sunspot number rising from 129 to 215.9, and solar flux...
Solar activity was a bit lower this week. Seven new sunspot groups appeared. The only day with no new sunspot...
by Sierra Harrop, W5DX ARRL The National Association for Amateur Radio® encourages all amateur stations to prepare for what the...
Big increase in solar activity this week, with average daily sunspot number rising from 129 to 215.9, and solar flux...
New sunspot groups, nine in all, emerged on every day of this reporting week, July 4 to 10. One on...
Solar activity increased this week, with average daily sunspot numbers rising from 149.6 to 181.6. For some reason average daily...
Amateur Radio is active to provide critical communications for those in the path of Hurricane Beryl. The following information is...
We had another lucky week with quite a high solar flux index, low Kp geomagnetic numbers, few solar flares and...
Sunspot numbers rose this week, with the average changing from 139.4to 149.6, but average daily solar flux only shifted from...
This reporting week (May 30 to June 5) our Sun was active, with ninenew sunspot groups.One emerged on May 30,...
A potent solar storm is on its way to Earth, and could cause radio blackouts and dazzling displays of the...
SB PROP ARL ARLP020 ARLP020 Propagation de K7RA Solar activity was quiet this week. Average daily sunspot number slipped from...
Aurora Propagation, Northern Lights The sun has been busy, and it’s been a mixed bag for radio amateurs. Earlier this...
CanWarn, Radio Amateurs of Canada’s national severe weather preparedness program, is an important initiative. It equips volunteers with free storm...
