NOAA / Space Weather Prediction Center

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Space Weather Advisories

Advisory Outlooks

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA

Space Weather Advisory Outlooks, issued every Monday, provide general descriptions of conditions during the past week and an outlook for the next 7 days.


SPACE WEATHER ADVISORY OUTLOOK #14-39
2014 September 28 at 10:23 p.m. MDT (2014 September 29 0423 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For September 22-28

Category R1 (Minor) radio blackouts occurred on 23, 27, and 28 Sep due to flare activity from active sunspot Regions 2172, 2173, and 2178.

A category R2 (Moderate) radio blackout occurred on 28 Sep due to flare activity from active sunspot Region 2173.

Outlook For September 29-October 5

Category R1-R2 (Minor to Moderate) radio blackouts are expected with a slight chance for a Category R3 (Strong) for the forecast period (Sep 29 - Oct 05) due to potential flare activity from active sunspot Regions 2172, 2173, 2175, and the return of old Regions 2157 and 2158.

There is a slight chance for an S1 (Minor) solar radiation storm due to potential significant flare activity from active sunspot Regions 2172, 2173, 2175, and the return of old Regions 2157 and 2158.

For current space weather conditions see: Space Weather Now, Today's Space Weather and Space Weather Alerts


SWPC Outlooks issued in the past 4 weeks


The Space Weather categories used in the Advisory products are explained at NOAA space weather scales.

Space Weather Advisories are available here as soon as they are issued. Advisories are also distributed via email through the SWPC Product Subscription Service.

Data used to provide space weather services are contributed by NOAA, USAF, NASA, NSF, USGS, the International Space Environment Services and other observatories, universities, and institutions.

Each type of advisory message has its own reference number; the last two digits of the current year and a sequential message number.

Dates and times are Mountain Daylight Time (MDT) or Mountain Standard Time (MST) followed by Coordinated Universal Time (UTC). The difference between Mountain and Universal times are MDT + 6 hours = UTC or MST + 7 hours = UTC.

More information is available at SWPC's Web site or (303) 497-5127.

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