Alert archive / Maine / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 19, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Aug 4, 2018, 1:47 PM EDT for Washington County, Maine. It was in force for 28 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 4, 2018, 1:47 PM EDT (17:47 UTC)
- Expired
- Aug 4, 2018, 2:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Washington County, ME
The radar
The Caribou radar (KCBW), 120 km from the middle of the area, began a volume at 17:48 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, 5.8 hours before the alert went out and 242 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
- 472 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 481 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
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 4, 1:32 PM EDT, 15 minutes earlier.
Area forecast discussion, Aug 4, 1:32 PM EDT, 15 minutes before
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</html>Hazardous weather outlook, Aug 4, 3:45 AM EDT, 10 hours 2 minutes before
Hazardous Weather Outlook National Weather Service Caribou ME 345 AM EDT Sat Aug 4 2018 MEZ001>003-015>017-029-030-050745- Northwest Aroostook-Northeast Aroostook-Northern Somerset- Southern Penobscot-Interior Hancock-Central Washington- Coastal Hancock-Coastal Washington- 345 AM EDT Sat Aug 4 2018 This Hazardous Weather Outlook is for Coastal DownEast Maine, Far Northern Maine, Interior DownEast Maine and West Central Maine. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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>052-050745- 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- 345 AM EDT Sat Aug 4 2018 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Today and Tonight. Areas of fog will locally produce very poor visibility at times through tonight on the waters. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. MEZ004>006-010-011-031-032-050745- Northern Piscataquis-Northern Penobscot-Southeast Aroostook- Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- 345 AM EDT Sat Aug 4 2018 This Hazardous Weather Outlook is for East Central Maine, Eastern Maine, North Central Maine and Northern Maine. .DAY ONE...Today and Tonight. Rainfall of 1 to 2 inches is expected across the region today into this evening, with locally higher amounts. The heavy rain will cause ponding of water on roads and will cause smaller streams to rise significantly. Any culverts that are plugged with debris will likely fill and could flood. .DAYS TWO THROUGH SEVEN...Sunday through Friday. 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. CB
The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 6:02 AM EDT | Areal Flood Advisory | CAR | Piscataquis | 3 hr |
| Aug 4, 3:55 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.