Alert archive / Maine / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 43, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Jul 31, 2019, 3:39 PM EDT for Hancock County, Washington County, Maine. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 31, 2019, 3:39 PM EDT (19:39 UTC)
- Expired
- Jul 31, 2019, 4:30 PM EDT
- In force
- 51 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hancock County, ME, Washington County, ME
The radar
The Caribou radar (KCBW), 142 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.
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 7.7 hours before the alert went out and 380 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
- 412 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- -6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Caribou, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 31, 12:43 PM EDT, 2 hours 56 minutes earlier.
Area forecast discussion, Jul 31, 12:43 PM EDT, 2 hours 56 minutes before
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</html>Hazardous weather outlook, Jul 31, 3:55 AM EDT, 11 hours 44 minutes before
Hazardous Weather Outlook National Weather Service Caribou ME 355 AM EDT Wed Jul 31 2019 MEZ001>006-010-011-015>017-029>032-010800- Northwest Aroostook-Northeast Aroostook-Northern Somerset- Northern Piscataquis-Northern Penobscot-Southeast Aroostook- Central Piscataquis-Central Penobscot-Southern Penobscot- Interior Hancock-Central Washington-Coastal Hancock- Coastal Washington-Southern Piscataquis-Northern Washington- 355 AM EDT Wed Jul 31 2019 This Hazardous Weather Outlook is for Central Highlands Maine, Coastal DownEast Maine, Far Eastern Maine, Far Northern Maine, Interior DownEast Maine, North Woods Maine and Penobscot Valley Maine. .DAY ONE...Today and Tonight. A cold front crossing the region today will produce strong thunderstorms with heavy downpours and dangerous cloud to ground lightning. Some of these storms may be accompanied by damaging winds and small hail. Heavy downpours may cause ponding on roads and minor urban and small stream flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ050>052-010800- Coastal Waters from Eastport, ME to Schoodic Point, ME out 25 NM- Coastal Waters from Schoodic Point, ME to Stonington, ME out 25 NM- Intra Coastal Waters from Schoodic Point, ME to Stonington, ME- 355 AM EDT Wed Jul 31 2019 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Today and Tonight. Areas of fog will cause poor visibility through tonight. Thunderstorms will move across the waters tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
In the hours before
Special weather statement, Jul 31, 10:27 AM EDT, 5 hours 12 minutes before
Special Weather Statement
National Weather Service Caribou ME
1027 AM EDT Wed Jul 31 2019
MEZ001-002-004-311500-
Northern Piscataquis-Northeast Aroostook-Northwest Aroostook-
1027 AM EDT Wed Jul 31 2019
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
PISCATAQUIS COUNTY...
At 1025 AM EDT, strong thunderstorms were clustered 10 miles
northeast of Chamberlain Lake, or 25 miles southeast of Clayton Lake,
moving northeast at 40 mph.
Winds in excess of 40 mph are possible with this storm.
This storm will remain over mainly rural areas of northeastern
Piscataquis County.
If outdoors, consider seeking shelter inside a building.
If you are on or near an open body of water, get out of the water
and move indoors or inside a vehicle. Remember, lightning can strike
out to 10 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.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
LAT...LON 4667 6894 4640 6871 4639 6882 4630 6882
4617 6915 4640 6939
TIME...MOT...LOC 1425Z 237DEG 33KT 4634 6916
CornwellSpecial weather statement, Jul 31, 11:49 AM EDT, 3 hours 50 minutes before
Special Weather Statement
National Weather Service Caribou ME
1149 AM EDT Wed Jul 31 2019
MEZ002-311645-
Northeast Aroostook-
1149 AM EDT Wed Jul 31 2019
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN AROOSTOOK
COUNTY...
At 1148 AM EDT, strong thunderstorms were clustered near Washburn, or
11 miles northwest of Presque Isle, moving northeast at 40 mph.
Winds in excess of 40 mph are possible with this storm.
Locations impacted include...
Presque Isle, Caribou, Fort Fairfield, Limestone, Van Buren, Portage,
Mapleton, Washburn, Ashland, Easton, Woodland, Portage Lake, Loring,
Madawaska Lake, Lille, Scopan, Nashville Plantation, New Sweden,
Westfield and Chapman.
This includes the following highways...
US Highway 1 between Presque Isle and Van Buren.
State Highway 11 near Portage.
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with and ahead of
this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4720 6795 4711 6789 4707 6779 4672 6779
4649 6817 4682 6856 4727 6809
TIME...MOT...LOC 1548Z 226DEG 34KT 4677 6822
CornwellLocal storm report, Jul 31, 12:25 PM EDT, 3 hours 14 minutes before
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</html>Local storm report, Jul 31, 12:39 PM EDT, 3 hours before
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</html>Local storm report, Jul 31, 1:10 PM EDT, 2 hours 29 minutes before
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</html>Local storm report, Jul 31, 2:25 PM EDT, 1 hour 14 minutes before
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</html>The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:32 PM EDT | Special Weather Statement | CAR | 28 min | |
| Jul 30, 9:20 PM EDT | Special Weather Statement | CAR | Aroostook | 25 min |
| Jul 30, 9:44 PM EDT | Special Weather Statement | CAR | Aroostook | 46 min |
| Jul 31, 10:27 AM EDT | Special Weather Statement | CAR | Aroostook | 33 min |
| Jul 31, 11:49 AM EDT | Special Weather Statement | CAR | Aroostook | 56 min |
| Jul 31, 4:17 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Washington | 25 min |
| Jul 31, 4:30 PM EDT | Special Weather Statement | CAR | Washington | 45 min |
| Jul 31, 5:44 PM EDT | Special Weather Statement | CAR | Washington | 31 min |
| Jul 31, 6:49 PM EDT | Areal Flood Advisory | CAR | Penobscot, Piscataquis | 3 hr |
| Jul 31, 7:03 PM EDT | Special Weather Statement | CAR | Washington | 27 min |
| Jul 31, 7:23 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Washington | 52 min |
Nearby
Severe Thunderstorm Warnings in Maine, 2019Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.