Alert archive / Maine / High Surf Advisories in 2017
High Surf Advisory 1, NWS Gray, ME
NWS Gray, ME issued this high surf advisory at Aug 16, 2017, 3:45 AM EDT for Knox County, Lincoln County, Sagadahoc County, Maine. It took effect at Aug 16, 2017, 8:00 PM EDT. It was in force for 96 min.
The area
The counties it named.
The facts
- Issued
- Aug 16, 2017, 3:45 AM EDT (07:45 UTC)
- In effect from
- Aug 16, 2017, 8:00 PM EDT
- Expired
- Aug 16, 2017, 9:36 PM EDT
- In force
- 96 min
- Issued by
- NWS Gray, ME
Counties Knox County, ME, Lincoln County, ME, Sagadahoc County, ME
The radar
The Portland,ME radar (KGYX), 62 km from the middle of the area, began a volume at 07:47 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
Caribou, ME (KCAR), launched 00:00Z, 7.8 hours before the alert went out and 340 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
- 322 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1733 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:40 PM EDT | Special Weather Statement | GYX | Kennebec | 35 min |
| Aug 15, 9:46 PM EDT | Special Weather Statement | GYX | Waldo | 59 min |
| Aug 16, 3:37 AM EDT | Small Craft Advisory for Hazardous Seas | GYX | 18 hr | |
| Aug 15, 9:17 PM EDT | Special Weather Statement | GYX | Grafton | 28 min |
Nearby
High Surf Advisories in Maine, 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.