Merrimack County, New Hampshire weather alerts

Nothing is in force for Merrimack County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.

Warnings issued

1. Flash Flood WarningMon, Aug 3, 7:21 AM EDT
2. Severe Thunderstorm WarningThu, Jul 16, 3:15 PM EDT
3. Severe Thunderstorm WarningWed, Jul 15, 4:16 AM EDT
4. Severe Thunderstorm WarningWed, Jul 15, 3:41 AM EDT
5. Severe Thunderstorm WarningWed, Jul 15, 3:05 AM EDT
6. Severe Thunderstorm WarningThu, Jul 2, 6:15 PM EDT
7. Extreme Heat WarningWed, Jul 1, 11:00 AM EDT
8. Severe Thunderstorm WarningFri, Jun 26, 6:28 PM EDT
9. Severe Thunderstorm WarningFri, Jun 26, 5:27 PM EDT
10. Severe Thunderstorm WarningFri, Jun 26, 4:44 PM EDT
11. Severe Thunderstorm WarningFri, Jun 26, 4:37 PM EDT
12. Severe Thunderstorm WarningThu, Jun 18, 4:21 PM EDT
13. Severe Thunderstorm WarningThu, Jun 18, 4:04 PM EDT
14. Severe Thunderstorm WarningThu, Jun 18, 3:40 PM EDT
15. Severe Thunderstorm WarningThu, Jun 18, 2:39 PM EDT
16. Severe Thunderstorm WarningTue, Apr 14, 7:24 PM EDT
17. Flood WarningTue, Mar 17, 2:00 PM EDT
18. Winter Storm WarningMon, Feb 23, 12:00 AM EST
19. Winter Storm WarningFri, Feb 20, 12:00 PM EST
20. Extreme Cold WarningSat, Feb 7, 6:00 PM EST
21. Winter Storm WarningSun, Jan 25, 1:00 PM EST
22. Winter Storm WarningSun, Dec 28, 10:00 PM EST
23. Snow Squall WarningThu, Dec 4, 4:22 PM EST
24. Winter Storm WarningTue, Dec 2, 8:00 AM EST
25. Freeze WarningThu, Oct 9, 11:00 PM EDT

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

• Belknap CountyNone
• Grafton CountyNone
• Hillsborough CountyNone
• Rockingham CountyNone
• Strafford CountyNone
• Sullivan CountyNone

Warning

The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.

Watch

Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.

Advisory

A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.

Statement

Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.