Alert archive / Maine / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Caribou, ME

June 19, 2021Aroostook County, Penobscot County, Piscataquis County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jun 19, 2021, 3:41 PM EDT for Aroostook County, Penobscot County, Piscataquis County, Maine. It was in force for 64 min. 1 report 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 19, 2021, 3:41 PM EDT (19:41 UTC)
Expired: Jun 19, 2021, 4:45 PM EDT
In force: 64 min
Issued by: NWS Caribou, ME
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Aroostook County, ME, Penobscot County, ME, Piscataquis County, ME

The radar

The Caribou radar (KCBW), 66 km from the middle of the area, began a volume at 19:40 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 19, 4:10 PM EDT	TSTM WND DMG	Chester, ME	POWERLINES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Caribou, ME (KCAR), launched 12:00Z, 7.7 hours before the alert went out and 150 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WUUS51 KCAR 191941
SVRCAR
MEC003-019-021-192045-
/O.NEW.KCAR.SV.W.0008.210619T1941Z-210619T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Caribou ME
341 PM EDT Sat Jun 19 2021

The National Weather Service in Caribou Maine has issued a

* Severe Thunderstorm Warning for...
  East central Piscataquis County in north central Maine...
  Southeastern Aroostook County in northern Maine...
  Central Penobscot County in east central Maine...

* Until 445 PM EDT.

* At 341 PM EDT, severe thunderstorms were located along a line
  extending from 6 miles west of Millinocket to Lake View Plantation,
  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...
  Lincoln, Millinocket, East Millinocket, Medway, Springfield,
  Lakeville, Lincoln Township, Wytopitlock, Lake View Plantation,
  Reed Plantation, Enfield, Brownville, Lee, Mattawamkeag, Chester,
  Winn, Burlington, Woodville, Prentiss and Kingman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near an open body of water, get away from the water and 
move indoors or inside a vehicle. Remember, lightning can strike out 
to 15 miles from the parent thunderstorm. If you can hear thunder, 
you are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4565 6797 4564 6805 4551 6801 4525 6807
      4525 6812 4535 6898 4570 6891 4574 6795
TIME...MOT...LOC 1941Z 268DEG 36KT 4566 6885 4540 6889 

HAIL...1.00IN
WIND...60MPH
 
$$

Cornwell

3 follow-up statements

313 
WWUS51 KCAR 192006
SVSCAR

Severe Weather Statement
National Weather Service Caribou ME
406 PM EDT Sat Jun 19 2021

MEC021-192016-
/O.CAN.KCAR.SV.W.0008.000000T0000Z-210619T2045Z/
Piscataquis ME-
406 PM EDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PISCATAQUIS
COUNTY IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4565 6797 4564 6805 4551 6801 4525 6807
      4525 6812 4532 6876 4571 6861 4574 6795
TIME...MOT...LOC 2006Z 272DEG 36KT 4548 6853 

$$

MEC003-019-192045-
/O.CON.KCAR.SV.W.0008.000000T0000Z-210619T2045Z/
Aroostook ME-Penobscot ME-
406 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN AROOSTOOK AND EAST CENTRAL PENOBSCOT COUNTIES...

At 406 PM EDT, a severe thunderstorm was located 7 miles north of
Lincoln, 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...
Lincoln, Millinocket, Howland, East Millinocket, Medway, Springfield,
Lakeville, Lincoln Township, Wytopitlock, Reed Plantation, Enfield,
Lee, Mattawamkeag, Chester, Winn, Burlington, Lowell, Woodville,
Prentiss and Kingman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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.

If on or near an open body of water, get away from the water and 
move indoors or inside a vehicle. remember, lightning can strike out 
to 15 miles from the parent thunderstorm. If you can hear thunder, 
you are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4565 6797 4564 6805 4551 6801 4525 6807
      4525 6812 4532 6876 4571 6861 4574 6795
TIME...MOT...LOC 2006Z 272DEG 36KT 4548 6853 

HAIL...1.00IN
WIND...60MPH
 
$$

Cornwell

454 
WWUS51 KCAR 192029
SVSCAR

Severe Weather Statement
National Weather Service Caribou ME
429 PM EDT Sat Jun 19 2021

MEC003-019-192045-
/O.CON.KCAR.SV.W.0008.000000T0000Z-210619T2045Z/
Aroostook ME-Penobscot ME-
429 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN AROOSTOOK AND EAST CENTRAL PENOBSCOT COUNTIES...

At 428 PM EDT, a severe thunderstorm was located 9 miles northwest of
Springfield, or 12 miles northeast of Lincoln, moving east at 35 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...
Lincoln, Springfield, Lakeville, Lincoln Township, Wytopitlock, Reed
Plantation, Enfield, Lee, Mattawamkeag, Chester, Winn, Burlington,
Woodville, Prentiss, Kingman, Reed, Carroll, Macwahoc, Bancroft and
Drew Plantation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

If on or near an open body of water, get away from the water and 
move indoors or inside a vehicle. remember, lightning can strike out 
to 15 miles from the parent thunderstorm. If you can hear thunder, 
you are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

&&

LAT...LON 4565 6797 4564 6805 4551 6801 4525 6807
      4525 6812 4532 6868 4549 6855 4552 6847
      4572 6836 4574 6795
TIME...MOT...LOC 2028Z 261DEG 30KT 4547 6831 

HAIL...1.00IN
WIND...60MPH
 
$$

Cornwell

739 
WWUS51 KCAR 192044
SVSCAR

Severe Weather Statement
National Weather Service Caribou ME
444 PM EDT Sat Jun 19 2021

MEC003-019-192054-
/O.EXP.KCAR.SV.W.0008.000000T0000Z-210619T2045Z/
Aroostook ME-Penobscot ME-
444 PM EDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN AROOSTOOK AND
EAST CENTRAL PENOBSCOT COUNTIES WILL EXPIRE AT 445 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, but frequent cloud to ground lightning and heavy downpours
are still likely. Therefore, the warning will be allowed to expire.

LAT...LON 4565 6797 4564 6805 4551 6801 4525 6807
      4525 6812 4532 6868 4549 6855 4552 6847
      4572 6836 4574 6795
TIME...MOT...LOC 2044Z 268DEG 36KT 4547 6811 

$$

Cornwell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 1:43 PM EDT	Special Weather Statement	CAR		32 min
Jun 19, 2:17 PM EDT	Special Weather Statement	CAR	Aroostook	28 min
Jun 19, 2:51 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	24 min
Jun 19, 3:19 PM EDT	Areal Flood Advisory	CAR	Aroostook	42 min
Jun 19, 3:27 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	48 min
Jun 19, 3:35 PM EDT	Special Weather Statement	CAR	Waldo	40 min
Jun 19, 3:44 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot, Piscataquis	61 min
Jun 19, 4:12 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	63 min
Jun 19, 4:49 PM EDT	Beach Hazards Statement	CAR	Hancock, Washington	27 hr
Jun 19, 4:57 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	18 min
Jun 19, 5:17 PM EDT	Special Marine Warning	CAR		58 min
Jun 19, 5:26 PM EDT	Severe Thunderstorm Warning	CAR	Hancock	64 min
Jun 19, 5:28 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	48 min
Jun 19, 5:38 PM EDT	Areal Flood Advisory	CAR	Aroostook	45 min
Jun 19, 6:12 PM EDT	Special Marine Warning	CAR		47 min

Nearby

Severe Thunderstorm Warnings in Maine, 2021 Every 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.