🛰️ Space Weather

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

Current Space Weather

Kp Index
--
Unavailable
Solar Flare
B-Class
Flux 2.79e-7
Solar Wind
523
km/s from NOAA plasma feed
Last Refresh
4:01 AM
Apr 12, 2026

Geomagnetic Activity

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

Aurora Outlook for Missouri

The latest geomagnetic reading was not available from NOAA during this refresh.

Quick Read
Reading unavailable
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

523 km/s
Faster solar wind can help drive stronger geomagnetic activity when other conditions line up.

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: Apr 12, 2026 4:01 AM

Latest NOAA Space Weather Alerts

K04W
2026-04-11 17:56:04.477
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Aurora may be visible at high latitudes such as Canada and Alaska.
EF3A
2026-04-11 13:06:43.880
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Satellite systems may experience significant charging resulting in increased risk to satellite systems.
K05W
2026-04-10 14:26:04.470
G1 - Minor
WARNING: Geomagnetic K-index of 5 expected
Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
EF3A
2026-04-10 14:07:21.717
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Satellite systems may experience significant charging resulting in increased risk to satellite systems.
K04W
2026-04-10 13:50:17.650
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Aurora may be visible at high latitudes such as Canada and Alaska.
K04A
2026-04-10 02:08:32.690
ALERT: Geomagnetic K-index of 4
Aurora may be visible at high latitudes such as Canada and Alaska.