🛰️ Space Weather

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

Current Space Weather

Kp Index
0.7
Quiet
Solar Flare
B-Class
Flux 8.53e-7
Solar Wind
367
km/s from NOAA plasma feed
Last Refresh
1:43 PM
May 22, 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

367 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: May 22, 2026 1:43 PM

Latest NOAA Space Weather Alerts

EF3A
2026-05-22 05:07:16.083
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3692 Issue Time: 2026 May 22 0507 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3691 Begin Time: 2026-05-16 17:40 Yesterday Maximum 2M
EF3A
2026-05-21 05:09:08.390
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3691 Issue Time: 2026 May 21 0509 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3690 Begin Time: 2026-05-16 17:40 Yesterday Maximum 2M
EF3A
2026-05-20 10:06:55.493
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Space Weather Message Code: ALTEF3 Serial Number: 3690 Issue Time: 2026 May 20 1006 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3689 Begin Time: 2026-05-16 17:40 Yesterday Maximum 2M
K04W
2026-05-19 23:56:50.663
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Aurora may be visible at high latitudes such as Canada and Alaska.
K04W
2026-05-19 20:57:51.727
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Aurora may be visible at high latitudes such as Canada and Alaska.
K04W
2026-05-19 16:42:16.093
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Aurora may be visible at high latitudes such as Canada and Alaska.