Alert archive / Maine / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 13, NWS Caribou, ME

June 19, 2021Aroostook County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jun 19, 2021, 5:28 PM EDT for Aroostook County, Maine. It was in force for 48 min. 7 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 19, 2021, 5:28 PM EDT (21:28 UTC)
Expired: Jun 19, 2021, 6:16 PM EDT
In force: 48 min
Issued by: NWS Caribou, ME
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Aroostook County, ME

The radar

The Caribou radar (KCBW), 104 km from the middle of the area, began a volume at 21:27 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, 5:30 PM EDT	HAIL 1	3 Nnw Perham, ME	VIA SOCIAL MEDIA PHOTOS.
Jun 19, 5:30 PM EDT	HAIL 1	Perham, ME	ADDITIONAL REPORT OF 1 INCH HAIL VIA SOCIAL MEDIA PHOTOS. TIME ESTIMATED VIA RADAR.
Jun 19, 5:38 PM EDT	HAIL 1.25	2 Ese Woodland, ME	VIA SOCIAL MEDIA PHOTO.
Jun 19, 5:44 PM EDT	TSTM WND GST 50	2 S Connor, ME	PEA SIZED HAIL AS WELL.
Jun 19, 5:55 PM EDT	TSTM WND GST 55	3 Nne Caribou, ME	IN ADDITION 1/2 INCH HAIL AND 1-1.5 INCHES OF RAIN IN 15MINS.
Jun 19, 5:58 PM EDT	HAIL 0.88	1 N Caribou Nws, ME
Jun 19, 5:58 PM EDT	HAIL 0.88	Caribou Nws, ME

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, 9.5 hours before the alert went out and 11 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.

821 
WUUS51 KCAR 192128
SVRCAR
MEC003-192230-
/O.NEW.KCAR.SV.W.0013.210619T2128Z-210619T2230Z/

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

The National Weather Service in Caribou Maine has issued a

* Severe Thunderstorm Warning for...
  East central Aroostook County in northern Maine...

* Until 630 PM EDT.

* At 526 PM EDT, a severe thunderstorm was located near Woodland, or
  9 miles west of Caribou, moving east at 25 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...
  Caribou, Fort Fairfield, Limestone, Washburn, Woodland, Loring, New
  Sweden, Connor, Perham, Caswell, Wade, Hamlin, Westmanland and Cyr
  Plantation.

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.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4707 6779 4683 6779 4681 6829 4692 6833
      4710 6788
TIME...MOT...LOC 2126Z 249DEG 24KT 4688 6822 

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

Cornwell

3 follow-up statements

468 
WWUS51 KCAR 192148
SVSCAR

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

MEC003-192230-
/O.CON.KCAR.SV.W.0013.000000T0000Z-210619T2230Z/
Aroostook ME-
548 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN AROOSTOOK COUNTY...

At 547 PM EDT, severe thunderstorms were located along a line
extending from 6 miles south of Van Buren to Caribou, moving
northeast at 45 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...
Caribou, Fort Fairfield, Limestone, Washburn, Woodland, Loring, New
Sweden, Connor, Caswell, Hamlin and Cyr Plantation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4682 6811 4700 6813 4708 6794 4710 6787
      4707 6779 4683 6779
TIME...MOT...LOC 2147Z 227DEG 40KT 4707 6796 4685 6799 

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

Cornwell

438 
WWUS51 KCAR 192204
SVSCAR

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

MEC003-192230-
/O.CON.KCAR.SV.W.0013.000000T0000Z-210619T2230Z/
Aroostook ME-
604 PM EDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN AROOSTOOK COUNTY...

At 603 PM EDT, severe thunderstorms were located along a line
extending from 8 miles southeast of Van Buren to near Limestone, 
moving east at 30 mph. Wind gusts up to 55 mph have been reported 
with this storm.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Caribou, Fort Fairfield, Limestone, Loring, Connor, Caswell, Hamlin
and Cyr Plantation.

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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4682 6796 4707 6797 4708 6794 4710 6787
      4707 6779 4683 6779
TIME...MOT...LOC 2203Z 255DEG 28KT 4708 6780 4685 6783 

HAIL...<.75IN
WIND...60MPH
 
$$

Cornwell

175 
WWUS51 KCAR 192216
SVSCAR

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

MEC003-192226-
/O.CAN.KCAR.SV.W.0013.000000T0000Z-210619T2230Z/
Aroostook ME-
616 PM EDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN AROOSTOOK COUNTY
IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4682 6796 4707 6797 4708 6794 4710 6787
      4707 6779 4683 6779
TIME...MOT...LOC 2215Z 249DEG 24KT 4711 6769 4688 6772 

$$

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, 3:41 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot, Piscataquis	64 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, 5:38 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.