What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
A G2 geomagnetic storm is a moderate storm on NOAA’s space-weather scale, associated with a Kp value of 6. It can affect high-latitude power systems, spacecraft operations and orbit predictions, and high-latitude HF radio propagation. It may also make aurora visible farther from the poles than usual. These are possible effects, not a prediction that every G2 storm will cause them.
What does G2 mean?
NOAA’s G scale classifies geomagnetic-storm intensity from G1 (minor) to G5 (extreme). G2 is the moderate category and corresponds to Kp=6. NOAA determines Kp values every three hours; a G2 label describes storm intensity, not the impact at a particular location or on a specific device. NOAA also notes that the storm’s duration influences how severe its effects may be. See NOAA’s Space Weather Scales.
A geomagnetic storm is a fluctuation in Earth’s magnetic field caused by changes in the solar wind and interplanetary magnetic field, according to NOAA’s explanation of geomagnetic storms.
What can a G2 storm affect?
High-latitude power systems
NOAA says high-latitude power systems may experience voltage alarms. It also says that long-duration storms may cause transformer damage. These are conditional effects; the G2 category does not mean a transformer will be damaged or that a power outage will occur.
Recommended Free Tools
#1 Best Overall
- NOAA WEATHER BAND RADIO & MULTI-BAND RECEPTION - This emergency radio receives 7 NOAA weather broadcasts (must be powered ON and tuned to NOAA station) plus AM/FM. Great for tracking hurricanes, tornadoes, storms, floods, and power outages when cell or WiFi is down. A practical manual weather radio for home safety kits, RVs, camping, and emergency preparedness.
- 12000mAh RECHARGEABLE BATTERY & MULTIPLE POWER OPTIONS - The built-in 12000mAh rechargeable battery powers the radio, flashlight, reading lamp, and SOS functions, while also providing emergency backup charging for phones or small USB devices when needed. Multiple charging options help keep the radio ready for hurricane season, blackouts, road trips, and outdoor emergencies
- 8500MM² LARGE SOLAR PANEL + HAND CRANK BACKUP - The oversized solar panel helps collect sunlight for emergency recharging, while the hand crank and Type-C charging input give you multiple ways to restore power. Use it as a hand crank solar radio, solar emergency radio, or wind up emergency radio for camping, hiking, and severe weather.
- CRISP SIGNAL & ULTRA-CLEAR SOUND - DSP signal processing helps improve AM/FM/WB reception with less noise, so you can stay connected to weather updates, news, and broadcasts. The 57mm speaker delivers clear, balanced, room-filling audio for home backup, backyard listening, camping, RV travel, and stormy conditions.
- 5W FLASHLIGHT, READING LAMP & SOS ALARM - The powerful 5W LED flashlight lights up dark rooms, campsites, garages, and roadside emergencies, while the 12-LED reading lamp is useful during blackouts. The 120dB SOS alarm helps signal for attention when injured, stranded, or lost outdoors.
Spacecraft and orbit predictions
Spacecraft ground controllers may need to make corrective adjustments to a spacecraft’s orientation. Changes in atmospheric drag can also affect orbit predictions, so operators may need to account for altered conditions when tracking spacecraft.
High-latitude HF radio
HF radio propagation can fade at higher latitudes during G2 conditions. NOAA’s G2 description does not say that all radio communications will fail.
Rank #2
- 【Reliable 𝗡𝗢𝗔𝗔/𝗔𝗠/𝗙𝗠 Reception with Clear Sound】With a high-sensitivity signal chip, noise-reduction circuitry, and an extended antenna, the radio ensures 𝗳𝗮𝘀𝘁, 𝘀𝘁𝗮𝗯𝗹𝗲 𝗿𝗲𝗰𝗲𝗽𝘁𝗶𝗼𝗻 across NOAA FM AM bands. Whether you're sheltering during a storm or camping off the grid, you'll hear every update loud and clear.
- 【𝗛𝗶𝗴𝗵-𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗦𝗼𝗹𝗮𝗿 𝗖𝗵𝗮𝗿𝗴𝗶𝗻𝗴 with Extra-Large Panel】The solar radio features a massive 8500mm² high-efficiency monocrystalline solar panel—over 4× larger than typical 2000mm² decorative polysilicon panels on the market. The expansive panel captures significantly more sunlight, delivering faster charging even in low-light conditions. Perfect for camping, power outages, and off-grid emergencies.
- 【𝗛𝗶𝗴𝗵-𝗧𝗼𝗿𝗾𝘂𝗲 𝗖𝗿𝗮𝗻𝗸 𝗣𝗼𝘄𝗲𝗿 for Fast Effortless Charging】With an upgraded internal generator—featuring a larger copper coil and reinforced magnet, the hand crank emergency radio delivers nearly 2× the charging efficiency of standard models. The extended crank arm offers smooth, low-effort rotation, letting you power up the radio or your phone in just 3 minutes when other sources fail. A must-have for your bug-out bag, survival kit, or emergency backpack.
- 【𝗧𝗿𝘂𝗲 𝟭𝟮𝟬𝟬𝟬𝗺𝗔𝗵 Power Capacity That Lasts】 Unlike inflated claims, the emergency crank radio is powered by a real 12000mAh lithium battery that keeps your gear running when you need it most. Whether you’re charging your phone or keeping the radio and lights on for days, you’ll have dependable energy throughout storms, blackouts, or outdoor adventures.
- 【Versatile Emergency Flashlight & Soft Reading Light】The noaa am fm radio includes a powerful flashlight that casts a focused beam up to 260 feet, perfect for dark trails, tents, or emergency navigation. Flip up the frosted reading lamp to enjoy a soft, warm glow that’s easy on the eyes. Both LED lights offer two brightness levels to match your needs—whether for safety or comfort.
Aurora visibility
NOAA notes that aurora has been seen as far south as New York and Idaho during G2 conditions, typically around 55 degrees geomagnetic latitude. That is a geomagnetic-latitude reference, not a guarantee of visibility anywhere in those states. The chance of a sighting depends on the storm and local observing conditions; geomagnetic latitude is more relevant to the scale’s location guidance than a state’s geographic latitude.
What a G2 label does not imply
NOAA’s G2 effects list does not describe widespread blackouts or broad disruption of consumer electronics as expected effects. Do not assume the more severe impacts listed for higher G categories apply to a G2 storm. The scale describes potential effects, and duration can influence their severity.
Rank #3
- [7400mWh (2000mAh) POWER BANK WILL KEEP DEVICES POWERED] The FosPower FOSPWB-2376 emergency radio incorporates a 7400mWh (2000mAh) power bank capable of providing emergency power to any small tablet or phone.
- [3 POWER SOURCES POWER WHEN YOU NEED IT] Use the emergency weather radio's 3 power sources when you need a boost of power or need to recharge the radio. The radio's crank lever and solar panel are both capable of regenerating enough power to keep the radio, lights, and SOS alarm ready to go when you need it most. AAA Batteries ensure you have power when not able to regenerate power.
- [2 LIGHT SOURCES ALWAYS POWERED] The emergency crank radio can also provide light. The 4 LED reading light and 1W flashlight provides enough output to keep you and your loved ones out of the dark in an emergency situation.
- [NOAA EMERGENCY WEATHER BROADCAST ACCESS] The radio will dependably receive up to the second emergency weather forecasts and emergency news broadcasts from NOAA and AM/FM stations.
- [LIMITED LIFETIME WARRANTY] Includes a Limited Lifetime Warranty. Please visit FosPower's website for more information.
How often does NOAA list G2-level activity?
In the version of NOAA’s Space Weather Scales replaced on December 13, 2023, NOAA listed an average of 600 G2-level events and 360 storm days per 11-year solar cycle. These are cycle-average frequency figures, not a forecast or a count for a particular calendar year. See NOAA’s scale.
Quick Recap
Best Value
- 【Reliable 𝗡𝗢𝗔𝗔/𝗔𝗠/𝗙𝗠 Reception with Clear Sound】With a high-sensitivity signal chip, noise-reduction circuitry, and an extended antenna, the radio ensures 𝗳𝗮𝘀𝘁, 𝘀𝘁𝗮𝗯𝗹𝗲 𝗿𝗲𝗰𝗲𝗽𝘁𝗶𝗼𝗻 across NOAA FM AM bands. Whether you're sheltering during a storm or camping off the grid, you'll hear every update loud and clear.
- 【𝗛𝗶𝗴𝗵-𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗦𝗼𝗹𝗮𝗿 𝗖𝗵𝗮𝗿𝗴𝗶𝗻𝗴 with Extra-Large Panel】The solar radio features a massive 8500mm² high-efficiency monocrystalline solar panel—over 4× larger than typical 2000mm² decorative polysilicon panels on the market. The expansive panel captures significantly more sunlight, delivering faster charging even in low-light conditions. Perfect for camping, power outages, and off-grid emergencies.
- 【𝗛𝗶𝗴𝗵-𝗧𝗼𝗿𝗾𝘂𝗲 𝗖𝗿𝗮𝗻𝗸 𝗣𝗼𝘄𝗲𝗿 for Fast Effortless Charging】With an upgraded internal generator—featuring a larger copper coil and reinforced magnet, the hand crank emergency radio delivers nearly 2× the charging efficiency of standard models. The extended crank arm offers smooth, low-effort rotation, letting you power up the radio or your phone in just 3 minutes when other sources fail. A must-have for your bug-out bag, survival kit, or emergency backpack.
- 【𝗧𝗿𝘂𝗲 𝟭𝟮𝟬𝟬𝟬𝗺𝗔𝗵 Power Capacity That Lasts】 Unlike inflated claims, the emergency crank radio is powered by a real 12000mAh lithium battery that keeps your gear running when you need it most. Whether you’re charging your phone or keeping the radio and lights on for days, you’ll have dependable energy throughout storms, blackouts, or outdoor adventures.
- 【Versatile Emergency Flashlight & Soft Reading Light】The noaa am fm radio includes a powerful flashlight that casts a focused beam up to 260 feet, perfect for dark trails, tents, or emergency navigation. Flip up the frosted reading lamp to enjoy a soft, warm glow that’s easy on the eyes. Both LED lights offer two brightness levels to match your needs—whether for safety or comfort.
Rank #4
- 【 Super Bright 3 LED Flashlight 】 The flashlight on this emergency hand crank radio has been upgraded from a 1W single bead to a 3W 3 LED bead that provides 140LM of brightness, enough to provide you with emergency lighting in the event of a power outage.
- 【 SOS Alarm Function for Emergencies 】This emergency hand crank radio has been upgraded to include a SOS distress function. When stranded in a snowstorm or hurricane, you can press and hold for 3 seconds to sound a siren louder than 80 decibels to attract the attention or help of rescuers.
- 【 3-Way Power Sources for the Radio 】 This emergency hand crank radio can be charged via hand crank, solar panel and Type-C charge. There are 3 power backup options, making it easier to keep the emergency radio running for long periods of time.
- 【 Access to AM/FM/NOAA Radio Stations 】This emergency hand crank radio pick up AM/FM bands enjoy your leisure time, and also access to NOAA weather broadcasts that report emergency weather information for your area and alert you to prepare in advance.
- 【 Pocket-sized Emergency Radio 】Measuring just 5.1* 2.1* 2.4 inches and weighing only 0.51LB, this hand crank emergency radio is exceptionally lightweight and portable. The crank radio features a built-in 2000mAh rechargeable battery, your devices like a phone can be charged via it during emergencies.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
