Alert archive / New Hampshire / Special Weather Statements in 2021
Special Weather Statement, NWS Gray, ME
NWS Gray, ME issued this special weather statement at Aug 1, 2021, 8:03 PM EDT for Merrimack County, New Hampshire. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2021, 8:03 PM EDT (00:03 UTC)
- Expired
- Aug 1, 2021, 8:30 PM EDT
- In force
- 27 min
- Issued by
- NWS Gray, ME
County Merrimack County, NH
The radar
The Portland,ME radar (KGYX), 151 km from the middle of the area, began a volume at 00:04 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
Gray, ME (KGYX), launched 00:00Z, 0.1 hours before the alert went out and 151 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1343 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
281 WWUS81 KGYX 020003 SPSGYX Special Weather Statement National Weather Service Gray ME 803 PM EDT Sun Aug 1 2021 NHZ007-008-020030- Merrimack-Sullivan- 803 PM EDT Sun Aug 1 2021 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL SULLIVAN AND NORTHWESTERN MERRIMACK COUNTIES... At 802 PM EDT, a strong thunderstorm was located near New London, moving northeast at 25 mph. Locations impacted include... New London, Danbury, Warner, Andover, Goshen, Newbury, Wilmot, Sulton, Webster, Sunapee and Salisbury. This includes Interstate 89 between mile markers 22 and 33. If outdoors, consider seeking shelter inside a building. Torrential rainfall is occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4328 7207 4335 7212 4349 7186 4333 7174 TIME...MOT...LOC 0002Z 243DEG 20KT 4334 7203 $$ Tubbs
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 8:15 PM EDT | Flash Flood Warning | GYX | Belknap, Cheshire, Grafton, Merrimack, Sullivan | 6 hr |
Nearby
Special Weather Statements in New Hampshire, 2021Every special weather statement in 2021
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.