Alert archive / Maine / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 28, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Aug 9, 2018, 12:30 PM EDT for Penobscot County, Maine. It was in force for 45 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
- Aug 9, 2018, 12:30 PM EDT (16:30 UTC)
- Expired
- Aug 9, 2018, 1:15 PM EDT
- In force
- 45 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Penobscot County, ME
The radar
The Caribou radar (KCBW), 97 km from the middle of the area, began a volume at 16:29 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
Gray, ME (KGYX), launched 12:00Z, 4.5 hours before the alert went out and 211 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
- 385 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 899 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Aug 9, 10:56 AM EDT, 1 hour 34 minutes earlier.
Area forecast discussion, Aug 9, 10:56 AM EDT, 1 hour 34 minutes before
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</html>Hazardous weather outlook, Aug 9, 3:06 AM EDT, 9 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Caribou ME 306 AM EDT Thu Aug 9 2018 MEZ001>006-010-011-015>017-029>032-101100- 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- 306 AM EDT Thu Aug 9 2018 This Hazardous Weather Outlook is for Coastal DownEast Maine, East Central Maine, Eastern Maine, Far Northern Maine, Interior DownEast Maine, North Central Maine, Northern Maine and West Central Maine. .DAY ONE...Today and Tonight. Locally heavy rainfall is possible through today. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ050>052-101100- 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- 306 AM EDT Thu Aug 9 2018 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. VJN
In the hours before
Local storm report, Aug 9, 8:10 AM EDT, 4 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
810 AM EDT THU AUG 9 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0645 AM TSTM WND DMG 1 NW ALLAGASH 47.09N 69.06W
08/07/2018 AROOSTOOK ME PUBLIC
TWO TREES DOWN IN TOWN.
&&Local storm report, Aug 9, 8:50 AM EDT, 3 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
850 AM EDT THU AUG 09 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0850 AM HEAVY RAIN 2 NE FORT FAIRFIELD 46.79N 67.80W
08/09/2018 M1.90 INCH AROOSTOOK ME TRAINED SPOTTER
&&
EVENT NUMBER CAR1801328
NORTONRThe office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 12:51 AM EDT | Areal Flood Advisory | CAR | Aroostook | 6 hr |
| Aug 9, 5:26 AM EDT | Special Weather Statement | CAR | Aroostook | 64 min |
| Aug 9, 5:30 AM EDT | Special Weather Statement | CAR | Penobscot | 60 min |
| Aug 9, 1:11 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Penobscot | 49 min |
| Aug 9, 2:06 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Penobscot | 39 min |
| Aug 9, 2:23 PM EDT | Special Marine Warning | CAR | 67 min | |
| Aug 9, 4:22 PM EDT | Beach Hazards Statement | CAR | Hancock, Washington | 28 hr |
Nearby
Severe Thunderstorm Warnings in Maine, 2018Every severe thunderstorm warning in 2018
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.