Alert archive / New Hampshire / Flash Flood Warnings in 2025
Flash Flood Warning 5, NWS Gray, ME
NWS Gray, ME issued this flash flood warning at Jul 12, 2025, 5:08 PM EDT for Cheshire County, Hillsborough County, New Hampshire. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2025, 5:08 PM EDT (21:08 UTC)
- Expired
- Jul 12, 2025, 7:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cheshire County, NH, Hillsborough County, NH
The radar
The Boston radar (KBOX), 127 km from the middle of the area, began a volume at 21:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.1 hours before the alert went out and 153 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 563 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 744 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 6:04 AM EDT | Dense Fog Advisory | GYX | Androscoggin, Cumberland, Franklin, Kennebec, Oxford, Sagadahoc and 3 more | 116 min |
| Jul 12, 9:11 AM EDT | Areal Flood Advisory | GYX | Androscoggin, Oxford | 49 min |
| Jul 12, 9:33 AM EDT | Areal Flood Advisory | GYX | Androscoggin | 117 min |
| Jul 12, 4:56 AM EDT | Areal Flood Advisory | GYX | Coos, Grafton | 109 min |
| Jul 12, 4:49 PM EDT | Areal Flood Advisory | GYX | Cheshire, Hillsborough | 116 min |
Nearby
Flash Flood Warnings in New Hampshire, 2025Every flash flood warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.