Thread by @NWSWPC

As has been recently noted on Twitter, what was then HPC came up with a regional name map for the United States about 20 years ago. It was simple, and meant to acquaint new forecasters to the lower 48. @TornadoQuest @AndrewWxCenter (1 of x).

@TornadoQuest @AndrewWxCenter After its creation, a more detailed map seemed necessary as local forecast offices referred to areas that were smaller in scale which we were unfamiliar. Three years ago, WPC worked on a new regional map for the United States, using input from other NWS offices. (2 of x)

@TornadoQuest @AndrewWxCenter These are sections of that map that we refer to in WPC discussions. For the area around Hawai'i... (3 of x)

@TornadoQuest @AndrewWxCenter For the area around AK... (4 of x)

@TornadoQuest @AndrewWxCenter The Pacific Northwest... (5 of x)

@TornadoQuest @AndrewWxCenter Around northern California... (6 of x)

@TornadoQuest @AndrewWxCenter Around southern California... (7 of x)

@TornadoQuest @AndrewWxCenter Around southern Nevada... (8 of x)

@TornadoQuest @AndrewWxCenter Around Arizona... (9 of x)

@TornadoQuest @AndrewWxCenter Utah and Colorado... (10 of x)

@TornadoQuest @AndrewWxCenter Nevada... (11 of x)

@TornadoQuest @AndrewWxCenter Montana... (12 of x)

@TornadoQuest @AndrewWxCenter The Northern Plains/Upper Midwest/Upper Mississippi Valley... (13 of x)

@TornadoQuest @AndrewWxCenter Central Plains/portions of the Midwest... (14 of x)

@TornadoQuest @AndrewWxCenter New Mexico... (15 of x)

@TornadoQuest @AndrewWxCenter Northern TX and Oklahoma... (16 of x)

@TornadoQuest @AndrewWxCenter Southern TX... (17 of x)

@TornadoQuest @AndrewWxCenter Louisiana... (18 of x)

@TornadoQuest @AndrewWxCenter Eastern Gulf coast and Southeast... (19 of x)

@TornadoQuest @AndrewWxCenter Florida... (20 of x)

@TornadoQuest @AndrewWxCenter Northwest Caribbean... (21 of x)

@TornadoQuest @AndrewWxCenter Northeast Caribbean... (22 of x)

@TornadoQuest @AndrewWxCenter Carolinas... (23 of x)

@TornadoQuest @AndrewWxCenter Mid South... (24 of x)

@TornadoQuest @AndrewWxCenter Illinois/portions of Midwest... (25 of x)

@TornadoQuest @AndrewWxCenter Ohio... (26 of x)

@TornadoQuest @AndrewWxCenter Great Lakes... (27 of x)

@TornadoQuest @AndrewWxCenter Southern Mid-Atlantic... (28 of x)

@TornadoQuest @AndrewWxCenter Northern Mid-Atlantic... (29 of x)

@TornadoQuest @AndrewWxCenter And New England... (30 of 30)

@TornadoQuest @AndrewWxCenter It should be noted that @NWSElPaso shared a file they use with area names near the TX/NM border which we tried to faithfully duplicate for our purposes. :)

@TornadoQuest @AndrewWxCenter For eastern ME, @NWSCaribou had a map of the regional names they use which we tried to replicate as close as possible for this map.