It looks like Hurricane Sandy will be combining with other storm systems over the Mid-Atlantic region, dumping inches of rain and bringing heavy winds Sunday through Tuesday. 

As a preparation step, download a Twitter and Facebook app to your mobile devices and follow these accounts. 

Fairfax County Social Media

• Read the Fairfax County emergency blog for constant updates.
• Follow emergency management on twitter @fairfaxcounty.
• Follow Fairfax County on facebook.
• The hashtag Fairfax County officials are using on Twitter will be #ffxstorm.
• Also follow Fairfax County Patch sites @fairfaxcopatch.

National Weather Resources

• Follow along the National Weather Service Hurricane Sandy page.
• Follow the National Weather Service on twitter @usNWSgo.
• Download this American Red Cross hurricane app.
• Follow the National Hurricane Center on facebook.
• Follow the National Hurricane Center on twitter @NHC_Atlantic.  

Virginia Weather

• For a list of suggested emergency supplies you should collect for your family, visit the Virginia Department of Emergency Management Ready virginia page. 
• Follow the Virginia Department of Emergency Management on twitter @vdem or on Facebook.
• Also follow Northern Virginia Patch Weather on Facebook — we'll be posting our latest regional stories there.

Local and Regional Media accounts to follow:

• Follow the Capital Weather Gang blog by the Washington Post or twitter @capitalweather.
• Follow Huffington Post DC for regional information.  
• Follow @FEMARegion3 for additional information in the Mid-Atlantic region.

Power Companies:

• Follow Dominion Power @DomVaPower.
• Follow NOVEC @NOVEC.

We know there are more valuable Twitter, Facebook and other social accounts out there. Add your suggestions to the comments section below!

Correction: an earlier version of this article listed an incorrect hashtag for the Fairfax County weather updates.