| Data Evaluated | NW | NC | GL | NE | EC | SE | SC | SRM | SW | AK | HPI | PVI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Surface Stations | 463 | 212 | 304 | 377 | 224 | 185 | 269 | 363 | 358 | 326 | 96 | 20 |
| Coastal Marine Areas | X | L | L | L | L | L | L | X | X | |||
| Upper-Air Winds | X | L | X | X | L | L | X | X | X | X | X | |
| Data Evaluation Methods | ||||||||||||
| Wind Power Estimates | S | R | S | R | R | R | S | S | S | R | R | R |
| Vertical Adjustment | S | S | S | R | S | R | R | S | S | S | S | S |
| Ridge Crest Estimates | S | S | R | S | R | S | S | R | R | R | R | |
| Qualitative Wind Indicators | ||||||||||||
| Topographic/Meteorological Features | X | X | X | X | X | L | X | X | X | X | X | X |
| Wind-Deformed Vegetation | L | X | X | L | ||||||||
| Eolian Landforms | L | L | L |
Regions: NW - Northwest; NC - North Central; GL - Great Lakes; NE - Northeast;
EC - East Central; SE - Southeast;
SC - South Central; SRM - Southern Rocky Mountains; SW - Southwest; AK - Alaska;
HPI - Hawaii and Pacific Islands;
PVI - Puerto Rico and Virgin Islands.
X = Extensive use; L = Limited use; S = Standard methods; R = Other (refined) methods.