Alert archive / Maine / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 25, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Jul 27, 2020, 6:48 PM EDT for Penobscot County, Maine. It was in force for 57 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 27, 2020, 6:48 PM EDT (22:48 UTC)
- Expired
- Jul 27, 2020, 7:45 PM EDT
- In force
- 57 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 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 22:49 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, 10.8 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
- 149 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 78 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 27, 4:31 PM EDT, 2 hours 17 minutes earlier.
Area forecast discussion, Jul 27, 4:31 PM EDT, 2 hours 17 minutes before
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</html>Hazardous weather outlook, Jul 27, 5:12 PM EDT, 1 hour 36 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Caribou ME 512 PM EDT Mon Jul 27 2020 MEZ001>006-010-011-015>017-031-032-282115- Northwest Aroostook-Northeast Aroostook-Northern Somerset- Northern Piscataquis-Northern Penobscot-Southeast Aroostook- Central Piscataquis-Central Penobscot-Southern Penobscot- Interior Hancock-Central Washington-Southern Piscataquis- Northern Washington- 512 PM EDT Mon Jul 27 2020 This Hazardous Weather Outlook is for Central Highlands Maine, Far Eastern Maine, Far Northern Maine, Interior DownEast Maine, North Woods Maine and Penobscot Valley Maine. .DAY ONE...Tonight. There remains potential for thunderstorms with strong wind gusts and heavy rainfall through this evening. The primary threat area will be southern Piscataquis County, southern and central Penobscot County...and eastward into Hancock and Washington counties. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A few strong to possibly severe thunderstorms may occur Tuesday afternoon for northern and eastern Maine. The main threats will be for strong to possibly damaging wind gusts and heavy rainfall. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ029-030-282115- Coastal Hancock-Coastal Washington- 512 PM EDT Mon Jul 27 2020 This Hazardous Weather Outlook is for Coastal DownEast Maine. .DAY ONE...Tonight. Thunderstorms with the potential for strong wind gusts and heavy into this evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. 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>052-282115- 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- 512 PM EDT Mon Jul 27 2020 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. 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.
The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 7:15 PM EDT | Tornado Warning | CAR | Penobscot | 30 min |
| Jul 27, 7:45 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Penobscot | 45 min |
Nearby
Severe Thunderstorm Warnings in Maine, 2020Every severe thunderstorm warning in 2020
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.