Alert archive / Maine / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 21, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Jul 21, 2017, 2:01 PM EDT for Aroostook County, Washington County, Maine. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2017, 2:01 PM EDT (18:01 UTC)
- Expired
- Jul 21, 2017, 3:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Aroostook County, ME, Washington County, ME
The radar
The Caribou radar (KCBW), 53 km from the middle of the area, began a volume at 18:01 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.
The nearest sounding before it
Caribou, ME (KCAR), launched 12:00Z, 6.0 hours before the alert went out and 147 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
- 63 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1180 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
178
WUUS51 KCAR 211801
SVRCAR
MEC003-029-211900-
/O.NEW.KCAR.SV.W.0021.170721T1801Z-170721T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Caribou ME
201 PM EDT FRI JUL 21 2017
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...
* Until 300 PM EDT
* At 201 PM EDT, a severe thunderstorm was located over Danforth,
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...
Danforth, Vanceboro, Codyville Plantation, Dyer Township, Weston,
Bancroft, Lambert Lake, Brookton, Forest, Forest City and Eaton.
This includes US Highway 1 between Brookton and Danforth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4550 6745 4551 6747 4549 6751 4543 6747
4543 6748 4560 6802 4577 6793 4575 6779
4568 6781 4566 6772 4569 6773 4561 6765
4562 6764 4559 6752 4560 6745 4557 6742
4553 6744 4551 6742
TIME...MOT...LOC 1801Z 290DEG 22KT 4566 6788
HAIL...1.00IN
WIND...60MPH
$$
Bloomer2 follow-up statements
485
WWUS51 KCAR 211832
SVSCAR
Severe Weather Statement
National Weather Service Caribou ME
232 PM EDT FRI JUL 21 2017
MEC003-029-211900-
/O.CON.KCAR.SV.W.0021.000000T0000Z-170721T1900Z/
Washington ME-Aroostook ME-
232 PM EDT FRI JUL 21 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHWESTERN WASHINGTON AND SOUTHEASTERN AROOSTOOK COUNTIES...
At 231 PM EDT, a severe thunderstorm was located 9 miles north of
Codyville Plantation, or 9 miles west of Vanceboro, moving east at 25
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
Locations impacted include...
Danforth, Vanceboro, Codyville Plantation, Dyer Township, Weston,
Bancroft, Lambert Lake, Brookton, Forest, Forest City and Eaton.
This includes US Highway 1 between Brookton and Danforth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4550 6745 4551 6747 4549 6751 4543 6747
4543 6748 4560 6802 4577 6793 4575 6779
4568 6781 4566 6772 4569 6773 4561 6765
4562 6764 4559 6752 4560 6745 4557 6742
4553 6744 4551 6742
TIME...MOT...LOC 1831Z 290DEG 22KT 4560 6763
HAIL...1.00IN
WIND...60MPH
$$
Bloomer526
WWUS51 KCAR 211858
SVSCAR
Severe Weather Statement
National Weather Service Caribou ME
258 PM EDT FRI JUL 21 2017
MEC003-029-211908-
/O.EXP.KCAR.SV.W.0021.000000T0000Z-170721T1900Z/
Washington ME-Aroostook ME-
258 PM EDT FRI JUL 21 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WASHINGTON AND
SOUTHEASTERN AROOSTOOK COUNTIES WILL EXPIRE AT 300 PM EDT...
The storm which prompted the warning is moving out of the area and
into New Brunswick. Therefore the warning will be allowed to expire.
LAT...LON 4550 6745 4551 6747 4549 6751 4543 6747
4543 6748 4560 6802 4577 6793 4575 6779
4568 6781 4566 6772 4569 6773 4561 6765
4562 6764 4559 6752 4560 6745 4557 6742
4553 6744 4551 6742
TIME...MOT...LOC 1857Z 290DEG 22KT 4555 6745
$$
BloomerThe office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 9:15 PM EDT | Special Weather Statement | CAR | Penobscot | 45 min |
| Jul 20, 10:07 PM EDT | Special Weather Statement | CAR | Washington | 38 min |
| Jul 21, 1:36 PM EDT | Special Weather Statement | CAR | 24 min | |
| Jul 21, 2:32 PM EDT | Severe Thunderstorm Warning | CAR | Aroostook, Penobscot | 43 min |
| Jul 21, 3:06 PM EDT | Special Weather Statement | CAR | 24 min | |
| Jul 21, 5:08 PM EDT | Special Weather Statement | CAR | 22 min | |
| Jul 21, 5:21 PM EDT | Special Weather Statement | CAR | Aroostook | 54 min |
| Jul 21, 5:25 PM EDT | Special Weather Statement | CAR | Piscataquis | 35 min |
| Jul 21, 5:56 PM EDT | Special Weather Statement | CAR | Aroostook | 49 min |
| Jul 21, 6:09 PM EDT | Severe Thunderstorm Warning | CAR | Aroostook | 66 min |
| Jul 21, 7:24 PM EDT | Severe Thunderstorm Warning | CAR | Aroostook | 38 min |
| Jul 21, 7:50 PM EDT | Severe Thunderstorm Warning | CAR | Aroostook | 55 min |
Nearby
Severe Thunderstorm Warnings in Maine, 2017Every severe thunderstorm warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.