How your local NWS Weather Forecast Office's daily HWO differs from SPC's national outlooks — and why both matter for weather awareness.
Each NWS Weather Forecast Office (WFO) issues a Hazardous Weather Outlook (HWO) once or twice a day. It's the local meteorologist's plain-language narrative of what hazards to expect over the next 7 days for the WFO's coverage area — different from SPC's national outlooks because it speaks to the specific terrain, season, and history of your region.
SPC speaks nationally. The HWO speaks to the forecaster's specific local concerns — winter weather in a marginal-snow area, fog in valley terrain, marine hazards on the coast, etc. It often catches threats that national outlooks miss because those don't cross severe-storm thresholds.
Part of the BloomWX learn library — beginner-friendly explainers covering every surface of the BloomWX weather dashboard. Open BloomWX to see live data for any U.S. county.