Meteorologists predict Saturday’s northeast blizzard will be a “rare” and “historic” storm — a storm, in other words, that you should probably prepare for.

While D.C. shouldn’t expect much snow or rain over the weekend, parts of New England, New York and Northern New Jersey could get hit with more than two feet of snow. If you live in those areas, you might want to have this list on hand.

Important numbers

●New York: Text 311-NYC to report an unplowed street; call 311 to report a homeless person in need of shelter, a downed tree or power line or another non-emergency issue

●New Jersey: Call 211 for emergency management, including flooding and storm assistance; call 511 for traffic and transit information

●Boston: Call (617) 635-3050 for the emergency storm center; call (617) 635-4500 for all city services

Twitter handles and hashtags for weather

@CapitalWeather, the best weather team around

@EricHolthaus, Wall Street Journal meteorologist ●●

@Accu_Henry, Accuweather senior meteorologist

@usNWSgov, the National Weather Service

@NWSNewYorkNY, the National Weather Service in New York

@NY1weather, forecasts from news channel NY1

#NJsnow, for updates from New Jersey

@WBZweather, forecasts from Boston●

#Bosnow, for updates from Boston

#Nemo, for all blizzard-related tweets

Twitter handles for city and emergency services

@MikeBloomberg, New York City mayor

@NYCGov, official New York government feed

@NYC_DOT, the New York Department of Transportation

@311NYC, New York government services

@NJOEM2010, New Jersey Office of Emergency Management

@CoryBooker, Newark mayor

@FEMARegion2, Federal Emergency Management Agency for New York and New Jersey

@NotifyBoston, Boston mayor’s office

@AlertBoston, Boston emergency notifications

@BostonTweet, excellent live feed

Government Web sites and resources

PlowNYC: An official Department of Sanitation Web site that shows salt spreading and plow operations in New York City.

Notify NYC: Free texts on road closures and emergency events from city government (also on Twitter @NotifyNYC).

mPing: A crowd-sourced weather-observation app by the National Oceanic and Atmospheric Administration and the University of Oklahoma.

Other resources

● live blog

● live blog