🛰️ Space Weather

Live solar and geomagnetic conditions powered by NOAA SWPC, with local caching for speed and reliability.

Current Space Weather

Kp Index
1.7
Quiet
Solar Flare
B-Class
Flux 9.00e-7
Solar Wind
--
km/s from NOAA plasma feed
Last Refresh
6:56 PM
Aug 23, 2026

Geomagnetic Activity

Quiet
Recent Kp readings from NOAA SWPC. Values of 5 or higher indicate geomagnetic storm conditions.

Aurora Outlook for Missouri

Quiet to mildly unsettled geomagnetic conditions. Aurora is not likely this far south right now.

Quick Read
Low Missouri potential right now
Storm Threshold
Kp 5+
Best Setup
Dark sky + clear weather

Aurora Viewline Tonight & Tomorrow Night

NOAA Experimental Forecast

These NOAA SWPC viewline graphics show the southern line where the aurora may be visible on the northern horizon for tonight and tomorrow night across North America.

NOAA Tonight's Aurora Viewline Forecast
Tonight's Aurora Viewline
Forecast southern extent for where aurora might be seen on the northern horizon tonight, based on NOAA's forecast Kp window.
NOAA Tomorrow Night's Aurora Viewline Forecast
Tomorrow Night's Aurora Viewline
Next-night forecast viewline from the same NOAA product, useful for seeing whether the southern visibility edge shifts north or south.

How to Read It

Red Line
Southern viewing edge
Green to Red Oval
Brighter aurora zone
Missouri Right Now
Unlikely

If Missouri is north of or close to the red viewline, there is at least a chance of seeing aurora low on the northern horizon. If the line stays well north of Missouri, viewing here is much less likely.

Actual visibility still depends on darkness, cloud cover, and local light pollution.

GOES X-ray Flux

B-Class
The long-wave GOES X-ray channel is what drives the common A/B/C/M/X flare classes.
Latest NOAA aurora ovation map

Aurora Oval

Latest NOAA ovation imagery. Even when the oval expands, local cloud cover still matters for Missouri viewing.

Solar Wind Speed

Unavailable
Solar wind chart data was not available in the most recent refresh.

About This Page

NOAA Space Weather Prediction Center NOAA SWPC Data Services

This page uses NOAA SWPC data feeds for K-index, GOES X-ray flux, solar wind plasma, and space weather alerts. Cache refresh runs every 10 minutes when the page is visited.

Last cached update: Aug 23, 2026 6:56 PM

Latest NOAA Space Weather Alerts

EF3A
2026-08-23 09:21:33.883
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3726 Issue Time: 2026 Aug 23 0921 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3725 Begin Time: 2026 Aug 21 1105 UTC Yesterday Maxi
EF3A
2026-08-22 05:00:22.193
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3725 Issue Time: 2026 Aug 22 0500 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Continuation of Serial Number: 3724 Begin Time: 2026 Aug 21 1105 UTC Yesterday Maxi
EF3A
2026-08-21 11:18:00.697
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3724 Issue Time: 2026 Aug 21 1118 UTC ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu Threshold Reached: 2026 Aug 21 1105 UTC Station: GOES-19 Comment:
BHIS
2026-08-21 09:45:55.867
NOAA Space Weather Message
Space Weather Message Code: SUM10R Serial Number: 926 Issue Time: 2026 Aug 21 0945 UTC SUMMARY: 10cm Radio Burst Begin Time: 2026 Aug 21 0926 UTC Maximum Time: 2026 Aug 21 0932 UTC End Time: 2026 Aug 21 0934 UTC Peak Flux: 140 sfu Dur
TIIA
2026-08-20 20:49:09.870
ALERT: Type II Radio Emission
Space Weather Message Code: ALTTP2 Serial Number: 1523 Issue Time: 2026 Aug 20 2049 UTC ALERT: Type II Radio Emission Begin Time: 2026 Aug 20 1848 UTC Estimate Velocity: 927 km/s Comment:
XM5S
2026-08-20 12:12:01.710
R2 - Moderate
NOAA Space Weather Message
Area of impact centered primarily on sub-solar point on the sunlit side of Earth.