Alert archive / Maine / High Surf Advisories in 2017
High Surf Advisory 3, NWS Gray, ME
NWS Gray, ME issued this high surf advisory at Sep 18, 2017, 3:05 PM EDT for 6 counties in Maine; Rockingham County, New Hampshire. It was in force for 5 days.
The area
The counties it named.
The facts
- Issued
- Sep 18, 2017, 3:05 PM EDT (19:05 UTC)
- Expired
- Sep 23, 2017, 1:27 PM EDT
- In force
- 5 days
- Issued by
- NWS Gray, ME
Counties Cumberland County, ME, Knox County, ME, Lincoln County, ME, Sagadahoc County, ME, Waldo County, ME, York County, ME, Rockingham County, NH
The radar
The Portland,ME radar (KGYX), 26 km from the middle of the area, began a volume at 19:11 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 12:00Z, 7.1 hours before the alert went out and 26 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
- 571 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 34 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 |
|---|---|---|---|---|
| Sep 18, 2:46 PM EDT | Small Craft Advisory | GYX | 4 days | |
| Sep 18, 3:05 PM EDT | Coastal Flood Statement | GYX | York | 9 hr |
| Sep 18, 5:31 PM EDT | Dense Fog Advisory | GYX | Androscoggin, Cumberland, Franklin, Kennebec, Knox, Lincoln and 5 more | 10 hr |
Nearby
High Surf Advisories in Maine, 2017High Surf Advisories in New Hampshire, 2017Every high surf advisory in 2017
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.