Alert archive / Maine / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 83, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at Sep 6, 2021, 4:33 PM EDT for 5 counties in Maine. It was in force for 42 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 6, 2021, 4:33 PM EDT (20:33 UTC)
- Expired
- Sep 6, 2021, 5:15 PM EDT
- In force
- 42 min
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Androscoggin County, ME, Cumberland County, ME, Kennebec County, ME, Lincoln County, ME, Sagadahoc County, ME
The radar
The Portland,ME radar (KGYX), 36 km from the middle of the area, began a volume at 20:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 6, 4:33 PM EDT | TSTM WND DMG | 3 Ene Sabattus, ME | NUMEROUS TREES DOWN NEAR 100 SCHOOL ROAD. |
| Sep 6, 4:39 PM EDT | TSTM WND DMG | 2 Ene Brunswick, ME | NUMEROUS TREES DOWN ON WIRES, HOMES, AND VEHICLES EAST SIDE OF TOPSHAM. |
| Sep 6, 4:39 PM EDT | TSTM WND DMG | 2 Nnw Topsham, ME | POWER POLE SNAPPED ALONG WITH DOWNED TREES IN THE VICINITY OF ANDREA STREET. |
| Sep 6, 4:40 PM EDT | TSTM WND DMG | 1 Ene Topsham, ME | LARGE TREE DOWN ON A HOUSE ON ROUTE 196 IN TOPSHAM. TIME ESTIMATED BASED ON RADAR. |
| Sep 6, 4:40 PM EDT | TSTM WND DMG | 3 Nne Topsham, ME | LARGE TREE DOWN ON WIRES ON ROUTE 201 IN TOPSHAM. TIME ESTIMATED BASED ON RADAR. |
| Sep 6, 4:45 PM EDT | TSTM WND DMG | 3 Wnw Bowdoinham, ME | TREES AND POWERLINES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 8.6 hours before the alert went out and 36 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
- 10 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
058
WUUS51 KGYX 062033
SVRGYX
MEC001-005-011-015-023-062115-
/O.NEW.KGYX.SV.W.0083.210906T2033Z-210906T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gray ME
433 PM EDT Mon Sep 6 2021
The National Weather Service in Gray Maine has issued a
* Severe Thunderstorm Warning for...
Southwestern Kennebec County in south central Maine...
Southeastern Androscoggin County in southwestern Maine...
Western Lincoln County in south central Maine...
East central Cumberland County in southwestern Maine...
Sagadahoc County in south central Maine...
* Until 515 PM EDT.
* At 433 PM EDT, severe thunderstorms were located along a line
extending from 6 miles southwest of Winthrop to 6 miles northwest
of Topsham to Freeport, moving east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Brunswick, Augusta, Bath, Gardiner, Topsham, Wiscasset, Freeport,
Litchfield, Farmingdale, Manchester, Hallowell, Georgetown,
Woolwich, Winthrop, Lisbon, Harpswell, Durham, Boothbay, Bowdoin
and Bowdoinham.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4382 6973 4387 7018 4403 7008 4429 7004
4431 6959 4400 6959
TIME...MOT...LOC 2033Z 270DEG 25KT 4422 7004 4400 7007 4388 7013
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Ekster1 follow-up statement
333
WWUS51 KGYX 062053
SVSGYX
Severe Weather Statement
National Weather Service Gray ME
453 PM EDT Mon Sep 6 2021
MEC001-062103-
/O.CAN.KGYX.SV.W.0083.000000T0000Z-210906T2115Z/
Androscoggin ME-
453 PM EDT Mon Sep 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ANDROSCOGGIN
COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area.Therefore, the warning has been cancelled.
LAT...LON 4382 6973 4384 6992 4401 6983 4429 6988
4431 6959 4400 6959
TIME...MOT...LOC 2053Z 270DEG 25KT 4422 6987 4400 6990 4388 6996
$$
MEC005-011-015-023-062115-
/O.CON.KGYX.SV.W.0083.000000T0000Z-210906T2115Z/
Kennebec ME-Lincoln ME-Cumberland ME-Sagadahoc ME-
453 PM EDT Mon Sep 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR SOUTH CENTRAL KENNEBEC...WESTERN LINCOLN...EASTERN CUMBERLAND AND
NORTHEASTERN SAGADAHOC COUNTIES...
At 453 PM EDT, severe thunderstorms were located along a line
extending from near Gardiner to 6 miles northeast of Topsham to near
Brunswick, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Brunswick, Augusta, Bath, Gardiner, Wiscasset, Farmingdale,
Manchester, Hallowell, Georgetown, Woolwich, Harpswell, Boothbay,
Bowdoinham, Chelsea, Dresden, Edgecomb, Alna, Arowsic, Whitefield and
Pittston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4382 6973 4384 6992 4401 6983 4429 6988
4431 6959 4400 6959
TIME...MOT...LOC 2053Z 270DEG 25KT 4422 6987 4400 6990 4388 6996
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 2:59 PM EDT | Special Weather Statement | GYX | Franklin | 46 min |
| Sep 6, 3:33 PM EDT | Special Weather Statement | GYX | Oxford | 42 min |
| Sep 6, 3:37 PM EDT | Special Weather Statement | GYX | Androscoggin | 38 min |
| Sep 6, 3:50 PM EDT | Special Weather Statement | GYX | Somerset | 40 min |
| Sep 6, 3:53 PM EDT | Special Weather Statement | GYX | Androscoggin | 37 min |
| Sep 6, 4:09 PM EDT | Special Weather Statement | GYX | Kennebec | 36 min |
| Sep 6, 4:25 PM EDT | Special Weather Statement | GYX | Sagadahoc | 50 min |
| Sep 6, 4:27 PM EDT | Areal Flood Advisory | GYX | Franklin, Somerset | 56 min |
| Sep 6, 4:41 PM EDT | Special Marine Warning | GYX | 64 min | |
| Sep 6, 4:54 PM EDT | Special Weather Statement | GYX | Kennebec, Waldo | 36 min |
| Sep 6, 5:08 PM EDT | Severe Thunderstorm Warning | GYX | Kennebec, Somerset, Waldo | 52 min |
| Sep 6, 5:32 PM EDT | Special Weather Statement | GYX | Knox | 43 min |
Nearby
Severe Thunderstorm Warnings in Maine, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.