Alert archive / Maine / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 39, NWS Gray, ME

August 13, 2023York County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Aug 13, 2023, 3:34 PM EDT for York County, Maine. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 13, 2023, 3:34 PM EDT (19:34 UTC)
Expired: Aug 13, 2023, 3:57 PM EDT
In force: 23 min
Issued by: NWS Gray, ME
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County York County, ME

The radar

The Portland,ME radar (KGYX), 61 km from the middle of the area, began a volume at 19:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 13, 1:51 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.6 hours before the alert went out and 338 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 821 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 13, 2:07 PM EDT, 1 hour 27 minutes earlier.

Area forecast discussion, Aug 13, 2:07 PM EDT, 1 hour 27 minutes before

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Hazardous weather outlook, Aug 13, 2:38 PM EDT, 56 minutes before

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In the hours before

Special weather statement, Aug 13, 2:37 PM EDT, 57 minutes before

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Special weather statement, Aug 13, 2:57 PM EDT, 37 minutes before

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Local storm report, Aug 13, 3:15 PM EDT, 19 minutes before

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Special weather statement, Aug 13, 3:15 PM EDT, 19 minutes before

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Special weather statement, Aug 13, 3:22 PM EDT, 12 minutes before

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Local storm report, Aug 13, 3:29 PM EDT, 5 minutes before

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The office that day

Everything else NWS Gray, ME issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 13, 12:32 AM EDT	Special Weather Statement	GYX	Androscoggin	43 min
Aug 13, 12:39 PM EDT	Special Weather Statement	GYX	Cumberland	36 min
Aug 13, 12:49 PM EDT	Severe Thunderstorm Warning	GYX	Cumberland	29 min
Aug 13, 1:22 PM EDT	Special Weather Statement	GYX	Franklin	23 min
Aug 13, 1:27 PM EDT	Special Weather Statement	GYX	Cumberland	33 min
Aug 13, 1:37 PM EDT	Special Weather Statement	GYX	Franklin	38 min
Aug 13, 1:45 PM EDT	Severe Thunderstorm Warning	GYX	York	45 min
Aug 13, 2:05 PM EDT	Special Marine Warning	GYX		55 min
Aug 13, 2:18 PM EDT	Special Weather Statement	GYX	Somerset	27 min
Aug 13, 2:20 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	40 min
Aug 13, 2:25 PM EDT	Areal Flood Advisory	GYX	Franklin, Oxford, Somerset	3 hr
Aug 13, 2:28 PM EDT	Severe Thunderstorm Warning	GYX	Kennebec	47 min
Aug 13, 2:37 PM EDT	Special Weather Statement	GYX	Oxford	38 min
Aug 13, 2:57 PM EDT	Special Weather Statement	GYX	Somerset	33 min
Aug 13, 3:12 PM EDT	Flash Flood Warning	GYX	Franklin, Somerset	2 hr
Aug 13, 3:15 PM EDT	Special Weather Statement	GYX	Kennebec	30 min
Aug 13, 3:22 PM EDT	Special Weather Statement	GYX	York	23 min
Aug 13, 3:22 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Franklin, Kennebec, Somerset	53 min
Aug 13, 3:32 PM EDT	Severe Thunderstorm Warning	GYX	Kennebec, Somerset	43 min
Aug 13, 3:37 PM EDT	Special Marine Warning	GYX		83 min
Aug 13, 3:45 PM EDT	Special Weather Statement	GYX	Oxford	30 min
Aug 13, 4:07 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Oxford	38 min
Aug 13, 4:24 PM EDT	Special Weather Statement	GYX	York	36 min
Aug 13, 4:32 PM EDT	Special Weather Statement	GYX	Kennebec	43 min
Aug 13, 4:36 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Kennebec, Oxford	54 min
Aug 13, 4:52 PM EDT	Special Weather Statement	GYX	Androscoggin	53 min
Aug 13, 5:27 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Kennebec, Sagadahoc	48 min
Aug 13, 5:35 PM EDT	Areal Flood Advisory	GYX	Franklin, Somerset	3 hr
Aug 13, 6:39 PM EDT	Special Weather Statement	GYX	Androscoggin	36 min
Aug 13, 7:17 PM EDT	Special Weather Statement	GYX	Cumberland	43 min
Aug 13, 12:57 PM EDT	Special Weather Statement	GYX	Belknap	33 min
Aug 13, 1:51 PM EDT	Special Weather Statement	GYX	Coos	24 min
Aug 13, 4:42 PM EDT	Special Weather Statement	GYX	Rockingham	63 min

Nearby

Severe Thunderstorm Warnings in Maine, 2023 Every severe thunderstorm warning in 2023

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.