Сигнали и предупреждения


Съобщения от NOAA SWPC за промени в Космическото време
________________________________________________________________

Space Weather Message Code: ALTK04
Serial Number: 2244
Issue Time: 2021 Oct 19 1803 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Oct 19 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3950
Issue Time: 2021 Oct 19 1748 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Oct 19 1746 UTC
Valid To: 2021 Oct 20 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: ALTK04
Serial Number: 2243
Issue Time: 2021 Oct 19 0601 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Oct 19 0559 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3949
Issue Time: 2021 Oct 19 0426 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Oct 19 0425 UTC
Valid To: 2021 Oct 19 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: ALTK04
Serial Number: 2242
Issue Time: 2021 Oct 18 0300 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Oct 18 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3948
Issue Time: 2021 Oct 18 0251 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Oct 18 0250 UTC
Valid To: 2021 Oct 18 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: ALTK04
Serial Number: 2241
Issue Time: 2021 Oct 17 1947 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Oct 17 1936 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3947
Issue Time: 2021 Oct 17 1946 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Oct 17 1945 UTC
Valid To: 2021 Oct 17 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3946
Issue Time: 2021 Oct 12 2109 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3945
Valid From: 2021 Oct 12 0003 UTC
Now Valid Until: 2021 Oct 13 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: WARK05
Serial Number: 1614
Issue Time: 2021 Oct 12 1431 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1613
Valid From: 2021 Oct 12 0200 UTC
Now Valid Until: 2021 Oct 12 2200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
________________________________________________________________

Space Weather Message Code: WARK04
Serial Number: 3945
Issue Time: 2021 Oct 12 1429 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3944
Valid From: 2021 Oct 12 0003 UTC
Now Valid Until: 2021 Oct 12 2200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
________________________________________________________________

Space Weather Message Code: ALTK06
Serial Number: 482
Issue Time: 2021 Oct 12 1058 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2021 Oct 12 1052 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
________________________________________________________________

https://www.swpc.noaa.gov/products/alerts-watches-and-warnings