Alert archive / New Hampshire / Special Weather Statements in 2017
Special Weather Statement, NWS Gray, ME
NWS Gray, ME issued this special weather statement at Aug 2, 2017, 6:22 PM EDT for Belknap County, New Hampshire. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2017, 6:22 PM EDT (22:22 UTC)
- Expired
- Aug 2, 2017, 6:45 PM EDT
- In force
- 23 min
- Issued by
- NWS Gray, ME
County Belknap County, NH
The radar
The Portland,ME radar (KGYX), 88 km from the middle of the area, began a volume at 22:24 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, 10.4 hours before the alert went out and 88 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
- 1626 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 5:08 PM EDT, 1 hour 14 minutes earlier.
Area forecast discussion, Aug 2, 5:08 PM EDT, 1 hour 14 minutes before
Area Forecast Discussion National Weather Service Gray ME 508 PM EDT Wed Aug 2 2017 .SYNOPSIS... A cold front will approach from the northwest and stall over southern Quebec tonight through Thursday. The front will shift north on Friday as low pressure lifts northeast out of the Great Lakes. A cold front will approach from the west on Saturday and will cross the region Saturday night. High pressure will gradually build in from the southwest on Sunday and will hold over the area on Monday. && .NEAR TERM /UNTIL 6 AM THURSDAY MORNING/... 5 pm Update: Visible Satellite imagery shows widespread fog and stratus along and off the coast Portland on east. Have updated grids to input this fog and to move it into Maine coastal zones from Portland east this evening. Previous Discussion: Scattered showers and thunderstorms will continue through this evening. A very moist airmass is in place with PWATs up to 1.5 inches across southern New Hampshire. This high moisture in combination with the slow moving storms will mean very heavy rainfall may result in localized flooding. With most of the forcing for storms still south of the area do not expect any flooding to be widespread so have not issued any flash flood watch. In addition to the heavy rain threat, soundings show very steep low level lapse rates which combined with a dry air layer aloft may also allow for a few severe wind gusts during the collapse phase of any stronger storms. && .SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/... Thursday will be a repeat of today with increasing southerly moist flow. Once again expect scattered showers and thunderstorms with a risk for some localized heavy rainfall and a few stronger wind gusts. Flow aloft will remain fairly weak as the stalled frontal boundary slowly slowly pushes towards the region from Quebec. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... Fri through Sat, a very moist south to southwest flow will continue ahead of an approaching long wave upper trof over the Great Lakes. General low clouds and scattered showers can be expected in this unstable air mass. Temperatures will be near seasonable levels but humidity will be very high with some dewpoints probably reaching into the lower 70s. PWATS will be high so any convection will produce heavy downpours. The upper trof exits to the east by Saturday night with a trailing cold front bringing clearing and a drier air mass in its wake for the latter half of the weekend. Sunday and into early next week dry weather and comfortable temps can be expected as a surface and upper ridge build over the area. By Mon night/Tue another digging upper trof over the Great Lakes is expected. This upper trof will bring a return moist southerly flow once again, with more convection expected to spread into the area Mon night into Tue. && .AVIATION /21Z WEDNESDAY THROUGH MONDAY/... Short Term... VFR across most of the region today, except the midcoast where a low cloud deck have been moving in an out of the shore. Expect those low clouds to once again push onshore after dark holding IFR through the Penobscot bay region. In the interior valley fog is once again expected in the CT river valley. Long Term...Variable conditions from MVFR to IFR Fri through Sat in areas of stratus and patchy fog also in scattered showers and thunderstorms. && .MARINE... Short Term...Winds and seas will remain well below SCA through the next few days. Long Term...A weak flow will keep winds/seas below SCA Fri through Sunday. && .GYX WATCHES/WARNINGS/ADVISORIES... ME...None. NH...None. MARINE...None. &&
Hazardous weather outlook, Aug 2, 3:00 PM EDT, 3 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Gray ME 300 PM EDT Wed Aug 2 2017 MEZ007>009-012>014-018>028-NHZ001>015-031900- Northern Oxford-Northern Franklin-Central Somerset-Southern Oxford- Southern Franklin-Southern Somerset-Interior York- Interior Cumberland-Androscoggin-Kennebec-Interior Waldo- Coastal York-Coastal Cumberland-Sagadahoc-Lincoln-Knox-Coastal Waldo- Northern Coos-Southern Coos-Northern Grafton-Northern Carroll- Southern Grafton-Southern Carroll-Sullivan-Merrimack-Belknap- Strafford-Cheshire-Eastern Hillsborough-Interior Rockingham- Coastal Rockingham-Western And Central Hillsborough- 300 PM EDT Wed Aug 2 2017 This Hazardous Weather Outlook is for Maine, south central Maine, southwest Maine, west central Maine, western Maine, New Hampshire, central New Hampshire, northern New Hampshire and southern New Hampshire. .DAY ONE...This Afternoon and Tonight. Scattered thunderstorms could produce localized heavy rain the rest of this afternoon and tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Scattered showers and thunderstorms could produce localized heavy downpours again Thursday through Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ150>154-031900- 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- Casco Bay- Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM- 300 PM EDT Wed Aug 2 2017 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...This Afternoon and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Aug 2, 4:33 PM EDT, 1 hour 49 minutes before
Special Weather Statement National Weather Service Gray ME 433 PM EDT WED AUG 2 2017 NHZ005-008-009-022100- Merrimack-Belknap-Southern Grafton- 433 PM EDT WED AUG 2 2017 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL BELKNAP AND NORTH CENTRAL MERRIMACK COUNTIES... At 433 PM EDT, a strong thunderstorm was located near Franklin, moving east at 10 mph. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Laconia, Franklin, Meredith, Loudon, Gilmanton, Canterbury, Belmont, Gilford, Bristol, Andover, Hill, Tilton, New Hampton, Sanbornton, Northfield and Salisbury. This includes Interstate 93 between mile markers 51 and 69. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4347 7181 4362 7170 4359 7139 4331 7148 TIME...MOT...LOC 2033Z 277DEG 8KT 4352 7164 Legro
Special weather statement, Aug 2, 4:46 PM EDT, 1 hour 36 minutes before
Special Weather Statement National Weather Service Gray ME 446 PM EDT WED AUG 2 2017 NHZ004-006-022115- Southern Carroll-Northern Carroll- 446 PM EDT WED AUG 2 2017 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL CARROLL COUNTY... At 446 PM EDT, a strong thunderstorm was located near Tamworth, or 7 miles south of Conway, moving east at 10 mph. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Conway, Tamworth, Madison, Freedom, Albany and Eaton. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4400 7100 4379 7099 4383 7122 4393 7123 TIME...MOT...LOC 2046Z 262DEG 11KT 4387 7113 Legro
Special weather statement, Aug 2, 4:50 PM EDT, 1 hour 32 minutes before
Special Weather Statement
National Weather Service Gray ME
450 PM EDT WED AUG 2 2017
NHZ008-009-022115-
Merrimack-Belknap-
450 PM EDT WED AUG 2 2017
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN BELKNAP AND EAST
CENTRAL MERRIMACK COUNTIES...
At 449 PM EDT, a strong thunderstorm was located over Canterbury, or
8 miles north of Concord, moving east at 15 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Concord, Franklin, Loudon, Alton, Barnstead, Epsom, Gilmanton,
Canterbury, Belmont, Boscawen, Chichester, Pittsfield, Northfield and
Webster.
This includes Interstate 93 between mile markers 42 and 53.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4327 7167 4339 7168 4349 7128 4327 7125
4323 7127
TIME...MOT...LOC 2049Z 262DEG 11KT 4333 7152
LegroLocal storm report, Aug 2, 5:45 PM EDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
545 PM EDT WED AUG 02 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0540 PM TSTM WND DMG LOVELL 44.13N 70.89W
08/02/2017 OXFORD ME LAW ENFORCEMENT
TREE DOWN AND POWER OUT
&&
EVENT NUMBER GYX1704174
KIMBLELocal storm report, Aug 2, 5:47 PM EDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAY ME
547 PM EDT WED AUG 02 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0546 PM HAIL SWEDEN 44.13N 70.82W
08/02/2017 E0.50 INCH OXFORD ME TRAINED SPOTTER
&&
EVENT NUMBER GYX1704175
KIMBLESpecial weather statement, Aug 2, 6:22 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Gray ME
622 PM EDT WED AUG 2 2017
NHZ006-009-010-022245-
Belknap-Strafford-Southern Carroll-
622 PM EDT WED AUG 2 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN STRAFFORD...
SOUTHEASTERN BELKNAP AND SOUTH CENTRAL CARROLL COUNTIES...
At 622 PM EDT, a strong thunderstorm was located over Alton, or 14
miles northwest of Rochester, moving northeast at 5 mph.
Winds in excess of 30 mph and pea size hail are possible with this
storm.
Locations impacted include...
Farmington, Alton, Barnstead, Gilmanton, Wolfeboro, Brookfield, New
Durham, Strafford, Middleton, Milton, Wakefield and Pittsfield.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 4332 7131 4343 7137 4366 7120 4350 7096
4349 7097 4344 7096 4342 7099 4329 7125
TIME...MOT...LOC 2222Z 225DEG 6KT 4346 7117
LegroThe office that day
Everything else NWS Gray, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 4:40 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford | 65 min |
| Aug 2, 5:36 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford | 54 min |
| Aug 2, 6:31 PM EDT | Areal Flood Advisory | GYX | Cumberland, Oxford | 119 min |
| Aug 2, 6:45 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, Oxford, York | 60 min |
| Aug 2, 7:52 PM EDT | Areal Flood Advisory | GYX | Cumberland, Oxford, York | 113 min |
| Aug 2, 3:55 PM EDT | Special Weather Statement | GYX | Belknap | 35 min |
| Aug 2, 4:33 PM EDT | Special Weather Statement | GYX | Belknap | 27 min |
| Aug 2, 4:46 PM EDT | Special Weather Statement | GYX | Carroll | 29 min |
| Aug 2, 4:50 PM EDT | Special Weather Statement | GYX | Belknap | 25 min |
| Aug 2, 5:15 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack | 60 min |
| Aug 2, 5:42 PM EDT | Flash Flood Warning | GYX | Merrimack | 4 hr |
Nearby
Special Weather Statements in New Hampshire, 2017Every special weather statement in 2017
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.