Live National Weather Service alerts, NEXRAD weather radar, USGS river and stream gauges, Storm Prediction Center convective outlooks, Local Storm Reports, 5-day forecast, air quality, and severe-weather notifications for Merrimack County, NH (FIPS 33013) in New Hampshire. Free, no login, no ads.
Merrimack County, NH is one of the counties of New Hampshire covered by BloomWX. Merrimack County, NH has a population of approximately 153,918 (2022 estimate, US Census Bureau). The county covers 932.9 square miles of land area.
Concord, East Concord, Franklin, Bow Bog, Pembroke.
Merrimack County, NH is served by the National Weather Service GYX forecast office for warnings, watches, advisories, and decision-support services. The same office produces the Hazardous Weather Outlook, Area Forecast Discussion, and DSS briefing packets you'll see on the BloomWX dashboard for this county.
BloomWX also covers the surrounding counties: Grafton County, NH, Sullivan County, NH, Belknap County, NH, Rockingham County, NH, Hillsborough County, NH, Strafford County, NH.
BloomWX is a free weather operations dashboard for SKYWARN storm spotters, emergency management volunteers, ham radio nets, and anyone in Merrimack County, NH who needs the official NWS data without the consumer-app cruft. Data is pulled directly from weather.gov and refreshes every 60 seconds. Sources: National Weather Service, Storm Prediction Center, USGS Water Data, NOAA Space Weather Prediction Center, Open-Meteo (Air Quality), and the Citizen Weather Observer Program.
Read the BloomWX learn library for beginner-friendly explainers on every dashboard surface, including SPC convective outlooks (TSTM/MRGL/SLGT/ENH/MDT/HIGH), NEXRAD radar, USGS flood gauges, and WPC surface analysis charts. See all New Hampshire county weather dashboards on BloomWX.