Alert archive / Maine / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 21, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Jun 30, 2021, 3:10 PM EDT for Hancock County, Maine. It was in force for 50 min. 4 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
- Jun 30, 2021, 3:10 PM EDT (19:10 UTC)
- Expired
- Jun 30, 2021, 4:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Hancock County, ME
The radar
The Portland,ME radar (KGYX), 143 km from the middle of the area, began a volume at 19:12 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 |
|---|---|---|---|
| Jun 30, 3:12 PM EDT | TSTM WND DMG | 2 Ssw Orland, ME | SEVERAL TREES DOWN ON POWERLINES CLOSING PORTIONS OF CASTINE ROAD IN ORLAND. TIME ESTIMATED VIA RADAR. |
| Jun 30, 3:18 PM EDT | TSTM WND DMG | 7 Nw Surry, ME | NUMEROUS TREES DOWN ON POWERLINES ALONG ROUTE 1 FROM ORLAND TO ELLSWORTH. TIME ESTIMATED VIA RADAR. |
| Jun 30, 3:30 PM EDT | TSTM WND DMG | 1 Se Surry, ME | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SE SURRY. LARGE TREE BRANCHES SNAPPED VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR. |
| Jun 30, 3:35 PM EDT | TSTM WND DMG | 1 Ssw Franklin, ME | TEN, ESTIMATED 24 INCH DIA TREES BLOWN OVER IN A STRAIGHT LINE. 5 WINDOWS BLOWN OUT OF A HOUSE AND DAMAGE TO DOOR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 30, 12:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 7.2 hours before the alert went out and 143 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
- 906 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1312 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted.
199
WUUS51 KCAR 301910
SVRCAR
MEC009-302000-
/O.NEW.KCAR.SV.W.0021.210630T1910Z-210630T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Caribou ME
310 PM EDT Wed Jun 30 2021
The National Weather Service in Caribou Maine has issued a
* Severe Thunderstorm Warning for...
Southern Hancock County in southeastern Maine...
* Until 400 PM EDT.
* At 309 PM EDT, a severe thunderstorm was located near Verona
Island, or near Bucksport, moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
* Locations impacted include...
Ellsworth, Bucksport, Blue Hill, Dedham, Verona Island, Penobscot
Township, Hancock, Franklin, Orrington, Orland, Lamoine, Trenton,
Surry, Penobscot, Sullivan, Mariaville, Waltham, Sorrento,
Somesville and Verona.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4446 6871 4447 6873 4446 6873 4448 6878
4450 6877 4453 6880 4455 6880 4457 6879
4457 6881 4461 6882 4463 6884 4467 6881
4462 6810 4430 6825
TIME...MOT...LOC 1909Z 287DEG 33KT 4456 6873
HAIL...1.00IN
WIND...60MPH
$$
MStrauser3 follow-up statements
784
WWUS51 KCAR 301928
SVSCAR
Severe Weather Statement
National Weather Service Caribou ME
328 PM EDT Wed Jun 30 2021
MEC009-302000-
/O.CON.KCAR.SV.W.0021.000000T0000Z-210630T2000Z/
Hancock ME-
328 PM EDT Wed Jun 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN HANCOCK COUNTY...
At 327 PM EDT, a severe thunderstorm was located near Ellsworth,
moving east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
Locations impacted include...
Ellsworth, Blue Hill, Penobscot Township, Hancock, Franklin, Lamoine,
Trenton, Surry, Sullivan, Mariaville, Waltham and Sorrento.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4446 6865 4465 6853 4462 6810 4434 6823
TIME...MOT...LOC 1927Z 285DEG 36KT 4451 6850
HAIL...1.00IN
WIND...60MPH
$$
MStrauser038 WWUS51 KCAR 301946 SVSCAR Severe Weather Statement National Weather Service Caribou ME 346 PM EDT Wed Jun 30 2021 MEC009-302000- /O.CON.KCAR.SV.W.0021.000000T0000Z-210630T2000Z/ Hancock ME- 346 PM EDT Wed Jun 30 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT FOR EAST CENTRAL HANCOCK COUNTY... At 346 PM EDT, a severe thunderstorm was located north of Bar Harbor, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Hancock, Franklin, Lamoine, Trenton, Sullivan and Sorrento. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact the National Weather Service office in Caribou Maine, by calling 1-800-909- 5970 or visit https://inws.ncep.noaa.gov/report. Torrential rainfall is occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4444 6838 4460 6829 4458 6812 4438 6821 TIME...MOT...LOC 1946Z 287DEG 33KT 4446 6827 HAIL...<.75IN WIND...60MPH $$ MStrauser
592
WWUS51 KCAR 301956
SVSCAR
Severe Weather Statement
National Weather Service Caribou ME
356 PM EDT Wed Jun 30 2021
MEC009-302005-
/O.EXP.KCAR.SV.W.0021.000000T0000Z-210630T2000Z/
Hancock ME-
356 PM EDT Wed Jun 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HANCOCK COUNTY
WILL EXPIRE AT 400 PM EDT...
The storm which prompted the warning has weakened below severe
limits and has exited the warned area. Therefore, the warning will
be allowed to expire. However small hail and gusty winds are still
possible across the Schoodic Peninsula with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
southeastern Maine.
LAT...LON 4444 6838 4460 6829 4458 6812 4438 6821
TIME...MOT...LOC 1955Z 287DEG 33KT 4444 6816
$$
MStrauserThe office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:04 AM EDT | Special Weather Statement | CAR | Piscataquis | 26 min |
| Jun 30, 8:26 AM EDT | Special Weather Statement | CAR | 34 min | |
| Jun 30, 9:21 AM EDT | Special Weather Statement | CAR | Penobscot | 39 min |
| Jun 30, 9:53 AM EDT | Severe Thunderstorm Warning | CAR | Washington | 52 min |
| Jun 30, 1:35 PM EDT | Special Marine Warning | CAR | 43 min | |
| Jun 30, 2:25 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Penobscot | 65 min |
| Jun 30, 4:53 PM EDT | Severe Thunderstorm Warning | CAR | Hancock | 52 min |
| Jun 30, 5:03 PM EDT | Special Marine Warning | CAR | 57 min | |
| Jun 30, 5:31 PM EDT | Severe Thunderstorm Warning | CAR | Aroostook, Washington | 29 min |
| Jun 30, 7:49 PM EDT | Special Weather Statement | CAR | Aroostook | 41 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.