[NLRS] Aurora Warning Extnded

[Bill Smith via NLRS]

Space Weather Message Code: WARK07
Serial Number:  44
Issue Time: 2014 Sep 13 0648 UTC

EXTENDED WARNING: Geomagnetic  K-index of 7 or greater expected
Extension to Serial Number: 43
Valid  From: 2014 Sep 12 2306 UTC
Now Valid Until: 2014 Sep 13 1600  UTC
Warning Condition: Persistence

Comment: Extended warning  due to continued potential for geomagnetic 
storming from the 10 Sep  CME.

NOAA Space Weather Scale descriptions can be found  at
www.swpc.noaa.gov/NOAAscales

Potential Impacts: Area of impact  primarily poleward of 50 degrees 
Geomagnetic Latitude.

Induced Currents - Power system voltage irregularities  possible, false 
alarms may be triggered on some protection  devices.

Spacecraft - Systems may experience surface charging;  increased drag on 
low Earth-orbit satellites and orientation problems may  occur.

Navigation - Intermittent satellite navigation (GPS) problems,  including 
loss-of-lock and increased range error may occur.

Radio - HF (high frequency) radio may be  intermittent.

Aurora - Aurora may be seen as low as Pennsylvania to Iowa to  Oregon.