Starter maps
101 region sets · for the storm map · free
Regions already drawn where the weather splits, named the way forecasters there say them. Open one in the editor and color each region, or split any region into its counties for more detail. The editor opens on the one for where you are. Or paint your own counties in the map maker.
Metro areas
The 50 largest in the lower 48, largest first. Western metros are on NWS forecast zones, which split counties by elevation and coast.
NYC Tri-State
Six regions on county lines: the five boroughs, Long Island, North Jersey, Central Jersey, the Lower Hudson Valley and southwest Connecticut.
Los Angeles and Southern California
Fourteen regions on NWS forecast zones: LA Basin, Santa Monica Mtns, San Fernando Valley, San Gabriel Valley, Santa Clarita Valley, San Gabriel Mountains, Antelope Valley, Ventura County, Ventura mountains, Orange County, Inland Empire, Inland mountains, High Desert and Coachella Valley.
DC and Baltimore
Five regions on county lines: Washington, Northern Virginia, the Maryland suburbs, Baltimore and the western suburbs toward the mountains.
Chicagoland
Five regions on county lines: Cook County, the north and west suburbs, the south suburbs and northwest Indiana, and southeast Wisconsin.
San Francisco Bay Area
Thirteen regions on NWS forecast zones: San Francisco, Bay shoreline, Peninsula coast, North Bay coast, North Bay valleys, North Bay mountains, East Bay hills, East Bay valleys, San Jose, East Santa Clara Hills, Santa Cruz Mountains, Monterey Bay and Solano County.
Dallas-Fort Worth
Four regions on county lines: Dallas and the east side, Fort Worth and the west side, the north counties toward the Red River, and the south counties.
Boston and Southern New England
Six regions on county lines: Boston, the North Shore, the South Shore and Cape, Worcester, Rhode Island and the Connecticut River valley.
Houston
Five regions on county lines: Harris County, North suburbs, West suburbs, Galveston Bay and Brazoria/Matagorda.
Philadelphia
Six regions on county lines: the city, the Pennsylvania suburbs, the Lehigh Valley, South Jersey, the Jersey Shore and Delaware.
Atlanta
Five regions on county lines: the core, the north suburbs, the south suburbs, the east side and the west side.
Miami and South Florida
Five regions on county lines: Miami-Dade, Broward, Palm Beach, Treasure Coast and Florida Keys.
Detroit
Six regions on county lines: Wayne County, Oakland County, Macomb/St. Clair, Flint area, Ann Arbor/Livingston and Monroe/Lenawee.
Phoenix
Nine regions on NWS forecast zones: Central Phoenix, North Phoenix/Glendale, West Valley, Western desert, Scottsdale, East Valley, North Valley foothills, Pinal County and Tonto/Superstitions.
Seattle and Puget Sound
Nine regions on NWS forecast zones: Seattle, Eastside, Everett/Snohomish, Tacoma/South King, Olympia/South Sound, Kitsap/Hood Canal, Skagit/Island, Cascade foothills and Cascades.
Orlando and Central Florida
Five regions on county lines: Orlando metro, Volusia and Flagler, Lake and Sumter, Polk County and Space Coast.
Twin Cities
Four regions on county lines: Minneapolis and St. Paul, the north metro, the east metro into Wisconsin, and the south metro.
Denver and the Front Range
Eight regions on NWS forecast zones: Denver, the Boulder and Jefferson County plains, Fort Collins and Greeley, the foothills, the high country, the Palmer Divide, Colorado Springs and Pikes Peak, and the eastern plains.
Cleveland and Akron
Six regions on county lines: Cuyahoga County, Snowbelt, Akron/Canton, Lorain and Medina, Sandusky Bay and Southern counties.
Charlotte
Seven regions on county lines: Mecklenburg, York/Lancaster SC, Union and east, Northeast suburbs, Lake Norman/Iredell, West suburbs and Hickory/Foothills.
Tampa Bay
Five regions on county lines: Hillsborough, Pinellas, Pasco/Hernando/Citrus, Polk County and Manatee/Sarasota.
Portland, Oregon
Nine regions on NWS forecast zones: Inner Portland, East Portland, Vancouver/Clark, Tualatin Valley, Columbia Gorge, Cascade foothills, Willamette Valley, Lower Columbia and Coast Range.
San Diego
Four regions on NWS forecast zones: San Diego coast, Inland valleys, Mountains and Deserts.
St. Louis
Five regions on county lines: St. Louis, St. Charles, Metro East north, Metro East south and Jefferson/Franklin.
Wasatch Front
Eight regions on NWS forecast zones: the Salt Lake Valley, the northern Wasatch Front, Utah Valley, the Wasatch Mountains, the Wasatch Back, Cache Valley, Tooele and eastern Box Elder.
San Antonio
Four regions on county lines: Bexar County, New Braunfels/I-35, Hill Country and Atascosa/Wilson.
Sacramento and the Sierra
Eight regions on NWS forecast zones: Sacramento metro, Delta, Yolo County, Sutter/Yuba, Motherlode foothills, Sierra 3000-5000 ft, Sierra above 5000 ft and Lake Tahoe.
Pittsburgh
Six regions on county lines: Allegheny County, Butler/Armstrong, Northwest, Laurel Highlands, Washington/Greene and Upper Ohio Valley.
Hartford and New Haven
Five regions on county lines: Hartford area, New Haven area, Middlesex/Shoreline, Southeast CT and Litchfield Hills.
Columbus, Ohio
Five regions on county lines: Franklin County, North suburbs, East and Zanesville, South/Hocking Hills and West.
Indianapolis
Six regions on county lines: Marion County, North suburbs, Muncie/Anderson, South suburbs, East suburbs and West suburbs.
Kansas City
Eight regions on county lines: Jackson County, Johnson County KS, Northland, KCK/Leavenworth, Lawrence area, South suburbs, East suburbs and St. Joseph.
Austin
Four regions on county lines: Travis County, Williamson County, Hays/San Marcos and Bastrop/Caldwell.
Las Vegas
Six regions on NWS forecast zones: Las Vegas Valley, Spring Mountains, North Clark County, Lake Mead, Laughlin/South and Pahrump/West.
Raleigh-Durham
Five regions on county lines: Wake County, Durham/Chapel Hill, Johnston County, Franklin/Vance and Chatham/Lee/Harnett.
Nashville
Six regions on county lines: Davidson County, South suburbs, Southeast suburbs, North suburbs, East suburbs and West suburbs.
Cincinnati
Five regions on county lines: Hamilton County, North suburbs, East suburbs, Northern Kentucky and Southeast Indiana.
Milwaukee
Five regions on county lines: Milwaukee County, Waukesha County, Ozaukee/Washington, Racine/Kenosha and Western counties.
Jacksonville
Four regions on county lines: Duval County, St. Johns and south, Clay and west and Nassau and SE Georgia.
Hampton Roads
Six regions on county lines: Virginia Beach/Norfolk, Chesapeake/Suffolk, Peninsula, Middle Peninsula, Outer Banks and Northeast NC.
Piedmont Triad
Six regions on county lines: Guilford County, Forsyth County, Alamance County, Davidson/Randolph, North and West.
Upstate South Carolina
Five regions on county lines: Greenville County, Spartanburg area, Anderson County, Pickens/Oconee and Lakelands.
Oklahoma City
Five regions on county lines: Oklahoma County, Norman/South, West suburbs, Shawnee/East and Guthrie/Logan.
Louisville
Four regions on county lines: Jefferson County, Southern Indiana, East suburbs and South suburbs.
Grand Rapids and the Lakeshore
Five regions on county lines: Kent County, Ottawa/Allegan, Muskegon, Ionia/Barry and Montcalm/Mecosta.
Memphis
Five regions on county lines: Shelby County, DeSoto County, North Mississippi, Tipton/Fayette and Arkansas side.
Birmingham
Five regions on county lines: Jefferson County, Shelby and south, Northeast suburbs, Cullman/Walker and Talladega.
Richmond
Five regions on county lines: Richmond/Henrico, Chesterfield, Tri-Cities, Hanover and east and West.
New Orleans
Six regions on county lines: New Orleans, Jefferson Parish, Northshore, River Parishes, Plaquemines and Pearl River MS.
Fresno and the San Joaquin Valley
Seven regions on NWS forecast zones: Fresno-Clovis, South Valley, West Side, Merced/Madera, Sierra foothills, Lower Sierra and High Sierra.
Harrisburg, York and Lancaster
Six regions on county lines: Dauphin County, Cumberland/Perry, York County, Lancaster County, Lebanon County and Adams County.
States
Every state in the lower 48, cut into its regions on county lines.
- Alabama8 regions
- Arizona7 regions
- Arkansas9 regions
- California11 regions
- Colorado8 regions
- Connecticut5 regions
- Delaware3 regions
- Florida10 regions
- Georgia10 regions
- Idaho6 regions
- Illinois10 regions
- Indiana9 regions
- Iowa9 regions
- Kansas10 regions
- Kentucky7 regions
- Louisiana8 regions
- Maine7 regions
- Maryland7 regions
- Massachusetts8 regions
- Michigan10 regions
- Minnesota10 regions
- Mississippi10 regions
- Missouri9 regions
- Montana7 regions
- Nebraska9 regions
- Nevada5 regions
- New Hampshire5 regions
- New Jersey6 regions
- New Mexico8 regions
- New York11 regions
- North Carolina9 regions
- North Dakota9 regions
- Ohio10 regions
- Oklahoma9 regions
- Oregon8 regions
- Pennsylvania9 regions
- Rhode Island3 regions
- South Carolina8 regions
- South Dakota9 regions
- Tennessee8 regions
- Texas15 regions
- Utah7 regions
- Vermont4 regions
- Virginia12 regions
- Washington10 regions
- West Virginia6 regions
- Wisconsin9 regions
- Wyoming9 regions
Weather regions
Drawn for a kind of weather: lake-effect belts, a stormy coast, a mountain range.
Sierra Nevada
Three regions on county lines along California's Sierra: the northern counties above Tahoe, the central Sierra and the southern Sierra.
New England Coast
Five coastal regions on county lines from Down East Maine to Long Island Sound, for nor'easters and coastal storms.
Western and Central New York
Six regions on county lines for the lake-effect belts off Erie and Ontario: Buffalo, the Southern Tier, the Niagara Frontier, Rochester, Syracuse and the Tug Hill.
County lines from the Census Bureau, forecast zones from the National Weather Service, first cuts of the state maps from NOAA’s climate divisions, coastline from Natural Earth.