Alert archive / New Hampshire / Flash Flood Warnings in 2020
Flash Flood Warning 26, NWS Gray, ME
NWS Gray, ME issued this flash flood warning at Nov 30, 2020, 8:44 PM EST for Oxford County, Maine; Carroll County, Coos County, Grafton County, New Hampshire. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 30, 2020, 8:44 PM EST (01:44 UTC)
- Expired
- Dec 1, 2020, 2:45 AM EST
- In force
- 6 hr
- Issued by
- NWS Gray, ME
- Area
- Storm-based polygon
- Flood severity
- None
Counties Oxford County, ME, Carroll County, NH, Coos County, NH, Grafton County, NH
The radar
The Portland,ME radar (KGYX), 90 km from the middle of the area, began a volume at 01:44 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 00:00Z, 1.7 hours before the alert went out and 306 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 564 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 675 m²/s²
- 0-3 km storm-relative helicity
- 1254 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Gray, ME wrote its last area forecast discussion before this flash flood warning went out at Nov 30, 6:56 PM EST, 1 hour 48 minutes earlier.
Area forecast discussion, Nov 30, 6:56 PM EST, 1 hour 48 minutes before
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</html>Hazardous weather outlook, Nov 30, 6:59 PM EST, 1 hour 45 minutes before
Hazardous Weather Outlook National Weather Service Gray ME 659 PM EST Mon Nov 30 2020 NHZ006-008>013-015-020000- Southern Carroll-Merrimack-Belknap-Strafford-Cheshire- Eastern Hillsborough-Interior Rockingham- Western And Central Hillsborough- 659 PM EST Mon Nov 30 2020 ...WIND ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... This Hazardous Weather Outlook is for New Hampshire, central New Hampshire, northern New Hampshire and southern New Hampshire. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NHZ014-020000- Coastal Rockingham- 659 PM EST Mon Nov 30 2020 ...WIND ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 AM EST TUESDAY... This Hazardous Weather Outlook is for southern New Hampshire. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. Coastal Flood Advisory. .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. MEZ014-021-022-020000- Southern Somerset-Kennebec-Interior Waldo- 659 PM EST Mon Nov 30 2020 ...WIND ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... ...FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for south central Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MEZ013-020000- Southern Franklin- 659 PM EST Mon Nov 30 2020 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...WIND ADVISORY IN EFFECT UNTIL 7 AM EST TUESDAY... This Hazardous Weather Outlook is for western Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ012-018>020-033-NHZ004-020000- Southern Oxford-Interior York-Central Interior Cumberland- Androscoggin-Interior Cumberland Highlands-Northern Carroll- 659 PM EST Mon Nov 30 2020 ...WIND ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... This Hazardous Weather Outlook is for Maine, southwest Maine, western Maine and northern New Hampshire. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MEZ007-008-NHZ002-003-020000- Northern Oxford-Northern Franklin-Southern Coos-Northern Grafton- 659 PM EST Mon Nov 30 2020 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... This Hazardous Weather Outlook is for western Maine and northern New Hampshire. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ026>028-020000- Lincoln-Knox-Coastal Waldo- 659 PM EST Mon Nov 30 2020 ...HIGH WIND WARNING IN EFFECT UNTIL 7 AM EST TUESDAY... ...FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 AM EST TUESDAY... This Hazardous Weather Outlook is for south central Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. Flood Watch. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. High Wind Warning. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ024-025-020000- Coastal Cumberland-Sagadahoc- 659 PM EST Mon Nov 30 2020 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...HIGH WIND WARNING IN EFFECT UNTIL 7 AM EST TUESDAY... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 AM EST TUESDAY... This Hazardous Weather Outlook is for south central Maine and southwest Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. High Wind Warning. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. High Wind Warning. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NHZ001-005-007-020000- Northern Coos-Southern Grafton-Sullivan- 659 PM EST Mon Nov 30 2020 This Hazardous Weather Outlook is for central New Hampshire and northern New Hampshire. .DAY ONE...Tonight. Heavy rain and gusty winds may lead to localized street flooding and a few power outages. .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. MEZ009-020000- Central Somerset- 659 PM EST Mon Nov 30 2020 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON... This Hazardous Weather Outlook is for west central Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ023-020000- Coastal York- 659 PM EST Mon Nov 30 2020 ...WIND ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 2 AM EST TUESDAY... This Hazardous Weather Outlook is for southwest Maine. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Wind Advisory. Coastal Flood Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ150>152-154-020000- Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM- Penobscot Bay- Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 659 PM EST Mon Nov 30 2020 ...STORM WARNING IN EFFECT UNTIL 7 AM EST TUESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ153-020000- Casco Bay- 659 PM EST Mon Nov 30 2020 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... ...STORM WARNING IN EFFECT UNTIL 7 AM EST TUESDAY... This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Warning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. Storm Warning. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Nov 30, 7:59 PM EST, 45 minutes before
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</html>Local storm report, Nov 30, 8:06 PM EST, 38 minutes before
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</html>Local storm report, Nov 30, 8:07 PM EST, 37 minutes before
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</html>Local storm report, Nov 30, 8:10 PM EST, 34 minutes before
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</html>Local storm report, Nov 30, 8:13 PM EST, 31 minutes before
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</html>Local storm report, Nov 30, 8:19 PM EST, 25 minutes before
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</html>The office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 11:08 PM EST | River Flood Warning | GYX | Oxford | 11 hr |
| Dec 1, 3:17 AM EST | Coastal Flood Advisory | GYX | Cumberland, Knox, Lincoln, Sagadahoc, Waldo, York | 11 hr |
| Dec 1, 3:18 AM EST | Gale Warning | GYX | 12 hr | |
| Dec 1, 8:49 AM EST | River Flood Warning | GYX | Somerset | 25 hr |
| Dec 1, 9:57 AM EST | Small Craft Advisory | GYX | 66 hr | |
| Dec 1, 1:28 PM EST | River Flood Warning | GYX | Kennebec | 29 hr |
| Nov 30, 8:26 PM EST | Flash Flood Warning | GYX | Cheshire, Hillsborough, Sullivan | 3 hr |
| Nov 30, 9:36 PM EST | River Flood Warning | GYX | Grafton | 9 hr |
| Dec 1, 1:25 AM EST | River Flood Warning | GYX | Carroll | 13 hr |
| Dec 1, 7:34 AM EST | River Flood Warning | GYX | Grafton | 6 hr |
Nearby
Flash Flood Warnings in New Hampshire, 2020Flash Flood Warnings in Maine, 2020Every flash flood 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.