Alert archive / Maine / Heat Advisories in 2021
Heat Advisory 8, NWS Gray, ME
NWS Gray, ME issued this heat advisory at Aug 10, 2021, 2:41 PM EDT for 9 counties in Maine; Carroll County, Coos County, Grafton County, New Hampshire. It took effect at Aug 12, 2021, 11:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Aug 10, 2021, 2:41 PM EDT (18:41 UTC)
- In effect from
- Aug 12, 2021, 11:00 AM EDT
- Expired
- Aug 12, 2021, 8:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Gray, ME
Counties Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Kennebec County, ME, Lincoln County, ME, Oxford County, ME, Sagadahoc County, ME, Somerset County, ME, Waldo County, ME, Carroll County, NH, Coos County, NH, Grafton County, NH
The radar
The Portland,ME radar (KGYX), 52 km from the middle of the area, began a volume at 18:39 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, 6.7 hours before the alert went out and 336 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
- 768 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Gray, ME wrote its last area forecast discussion before this heat advisory went out at Aug 10, 1:19 PM EDT, 1 hour 22 minutes earlier.
Area forecast discussion, Aug 10, 1:19 PM EDT, 1 hour 22 minutes before
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</html>Hazardous weather outlook, Aug 10, 6:45 AM EDT, 7 hours 56 minutes before
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</html>The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 3:15 AM EDT | Heat Advisory | GYX | Androscoggin, Cumberland, Franklin, Kennebec, Lincoln, Oxford and 4 more | 4 days |
Nearby
Heat Advisories in Maine, 2021Heat Advisories in New Hampshire, 2021Every heat advisory 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.