Idaho Amateur Radio
Emergency Service 		   
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DATE TIME GROUP: 251936Z MAR 2025

NOTE: This web page references images that are rendered on external web sites, and simply collects those images onto a single page for the convenience of the radio operator. Missing images can result from the external site being down, moved to another domain, or can be due to a change in how the external site presents the images. In the later cases, this page must be updated to generate the proper off-site references.



SOLAR WEATHER A & K INDICES
A K Description
0 0 QUIET
2 1 QUIET
3 1 QUIET
4 1 QUIET TO UNSETTLED
7 2 UNSETTLED
15 3 ACTIVE
27 4 ACTIVE
48 5 MINOR STORM
80 6 MAJOR STORM
132 7 SEVERE STORM
208 8 VERY MAJOR STORM
400 9 VERY MAJOR STORM
ELECTRON FLUX
>1000 POLAR REGION HF BLACKOUT
<1000 POLAR REGION HF DEGRADED
<100 POLAR REGION MINOR IMPACT
<10 NO HF IMPACT
<1 NO HF IMPACT
SOLAR FLUX INDEX
70 POOR
80 GOOD
90 VERY GOOD
100+ BEST
X-RAY (SUNLIT)
X20 HF BLACKOUT
X10 1-2 HR HF BLACKOUT
X1 1 HR HF BLACKOUT
M5 LIMITED HF BLACKOUT
M1 OCCASIONAL CONTACT LOSS
C1 LOW HF ABSORPTION
A1-B9 MINOR/NO HF IMPACT
PROTON FLUX
!M POLAR REGION HF BLACKOUT
100k 1-2 HR SUNLIT HF BLACKOUT
10k POLAR REGION HF DEGRADED
1k POLAR SMALL HF EFFECTS
100 POLAR MINOR HF EFFECTS
10 POLAR VERY MINOR HF EFFECTS
1 NO IMPACTS ON HF
MISSING foF2 Map MISSING muf_scale.png


3-Hour K Indices for Last 7 Days
3-Hour A Indices for Last 7 Days
IF NO IMAGE IS DISPLAYED THEN THE NOAA D-REGION PREDICTION IS CURRENTLY UNAVAILABLE 
-1 dB D-REGION ABSORPTION PREDICTION
Boise, ID                   6.47 MHz
Coeur d'Alene, ID           6.12 MHz
Jackson Hole, WY            6.47 MHz
Missoula, MT                6.21 MHz
Pocatello, ID               6.51 MHz
Portland, OR                6.33 MHz
Salt Lake City, UT          6.72 MHz
Seattle, WA                 6.15 MHz
 IF NO IMAGE IS DISPLAYED THEN AURORA DATA IS CURRENTLY UNAVAILABLE
current_propagation.php

Page loaded Tue, 25 Mar 2025 1936 UTC, will reload Tue, 25 Mar 2025 1945 UTC.