Alert archive / Maine / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 21, NWS Caribou, ME

July 2, 2019Aroostook County, Penobscot County, Washington County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jul 2, 2019, 5:20 PM EDT for Aroostook County, Penobscot County, Washington County, Maine. It was in force for 55 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: Jul 2, 2019, 5:20 PM EDT (21:20 UTC)
Expired: Jul 2, 2019, 6:15 PM EDT
In force: 55 min
Issued by: NWS Caribou, ME
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 70.0 mph

Counties Aroostook County, ME, Penobscot County, ME, Washington County, ME

The radar

The Caribou radar (KCBW), 41 km from the middle of the area, began a volume at 21:24 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
Jul 2, 5:25 PM EDT	TSTM WND DMG	5 Se Haynesville, ME	AT LEAST 10 TREES DOWN ALONG FERRY RD.

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, 9.3 hours before the alert went out and 134 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: 5 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 683 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

331 
WUUS51 KCAR 022120
SVRCAR
MEC003-019-029-022215-
/O.NEW.KCAR.SV.W.0021.190702T2120Z-190702T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Caribou ME
520 PM EDT Tue Jul 2 2019

The National Weather Service in Caribou Maine has issued a

* Severe Thunderstorm Warning for...
  Northwestern Washington County in southeastern Maine...
  Southeastern Aroostook County in northern Maine...
  East central Penobscot County in east central Maine...

* Until 615 PM EDT.

* At 520 PM EDT, a severe thunderstorm was located near Reed
  Plantation, or 7 miles northwest of Danforth, moving south at 25
  mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Danforth, Topsfield, Haynesville, Wytopitlock, Reed Plantation,
  Codyville Plantation, Weston, Prentiss, Carroll, Orient, Bancroft,
  Glenwood, Eaton, Brookton, Forest and Forest City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4538 6804 4577 6812 4582 6781 4580 6780
      4576 6781 4575 6779 4574 6779 4573 6781
      4570 6780 4569 6782 4568 6780 4568 6777
      4566 6773 4548 6763
TIME...MOT...LOC 2120Z 349DEG 23KT 4572 6799 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
 
$$

Cornwell

2 follow-up statements

885 
WWUS51 KCAR 022155
SVSCAR

Severe Weather Statement
National Weather Service Caribou ME
555 PM EDT Tue Jul 2 2019

MEC003-022205-
/O.CAN.KCAR.SV.W.0021.000000T0000Z-190702T2215Z/
Aroostook ME-
555 PM EDT Tue Jul 2 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN AROOSTOOK 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 4555 6808 4563 6780 4548 6763 4538 6804
TIME...MOT...LOC 2155Z 350DEG 26KT 4548 6793 

$$

MEC019-029-022215-
/O.CON.KCAR.SV.W.0021.000000T0000Z-190702T2215Z/
Washington ME-Penobscot ME-
555 PM EDT Tue Jul 2 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR NORTHWESTERN WASHINGTON AND EAST CENTRAL PENOBSCOT COUNTIES...

At 555 PM EDT, a severe thunderstorm was located 10 miles northwest
of Topsfield, or 13 miles south of Danforth, moving south at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Danforth, Topsfield, Codyville Plantation, Prentiss, Carroll,
Brookton, Eaton and Forest.

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 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 4555 6808 4563 6780 4548 6763 4538 6804
TIME...MOT...LOC 2155Z 350DEG 26KT 4548 6793 

HAIL...1.25IN
WIND...60MPH
 
$$

Cornwell

803 
WWUS51 KCAR 022214
SVSCAR

Severe Weather Statement
National Weather Service Caribou ME
614 PM EDT Tue Jul 2 2019

MEC019-029-022223-
/O.EXP.KCAR.SV.W.0021.000000T0000Z-190702T2215Z/
Washington ME-Penobscot ME-
614 PM EDT Tue Jul 2 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WASHINGTON AND
EAST CENTRAL PENOBSCOT COUNTIES WILL EXPIRE AT 615 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

Remember, a Severe Thunderstorm Warning still remains in effect for
Northern Washington and far Eastern Penobscot Counties.

LAT...LON 4555 6808 4563 6780 4548 6763 4538 6804
TIME...MOT...LOC 2213Z 349DEG 23KT 4538 6790 

$$

Cornwell

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 11:12 AM EDT	Special Weather Statement	CAR	Piscataquis	33 min
Jul 2, 11:15 AM EDT	Special Weather Statement	CAR	Piscataquis	45 min
Jul 2, 11:51 AM EDT	Special Weather Statement	CAR	Penobscot	39 min
Jul 2, 11:52 AM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis	38 min
Jul 2, 11:55 AM EDT	Severe Thunderstorm Warning	CAR	Aroostook, Penobscot	32 min
Jul 2, 12:15 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot	45 min
Jul 2, 12:39 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot	51 min
Jul 2, 12:55 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot, Washington	23 min
Jul 2, 1:24 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot, Washington	51 min
Jul 2, 1:55 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Washington	50 min
Jul 2, 2:16 PM EDT	Special Marine Warning	CAR		29 min
Jul 2, 2:39 PM EDT	Special Marine Warning	CAR		51 min
Jul 2, 3:53 PM EDT	Special Marine Warning	CAR		37 min
Jul 2, 5:04 PM EDT	Special Weather Statement	CAR		26 min
Jul 2, 6:02 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Washington	43 min

Nearby

Severe Thunderstorm Warnings in Maine, 2019 Every severe thunderstorm warning in 2019

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.