Alert archive / Massachusetts / Special Weather Statements in 2018
Special Weather Statement, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this special weather statement at Jul 27, 2018, 4:48 PM EDT for Franklin County, Massachusetts. It was in force for 27 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
- Jul 27, 2018, 4:48 PM EDT (20:48 UTC)
- Expired
- Jul 27, 2018, 5:15 PM EDT
- In force
- 27 min
- Issued by
- NWS Boston/Norton, MA
County Franklin County, MA
The radar
The Boston radar (KBOX), 128 km from the middle of the area, began a volume at 20:48 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
Albany, NY (KALY), launched 12:00Z, 8.8 hours before the alert went out and 122 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
- 432 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
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 Boston/Norton, MA wrote its last area forecast discussion before this special weather statement went out at Jul 27, 4:46 PM EDT, 2 minutes earlier.
Area forecast discussion, Jul 27, 4:46 PM EDT, 2 minutes before
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</html>Hazardous weather outlook, Jul 27, 9:36 AM EDT, 7 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Boston/Norton MA 936 AM EDT Fri Jul 27 2018 CTZ002-003-MAZ002>004-008>012-026-281345- Hartford CT-Tolland CT-Western Franklin MA-Eastern Franklin MA- Northern Worcester MA-Western Hampshire MA-Western Hampden MA- Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA- Northern Middlesex MA- 936 AM EDT Fri Jul 27 2018 This Hazardous Weather Outlook is for northern Connecticut, central Massachusetts, eastern Massachusetts and western Massachusetts. .DAY ONE...Today and tonight. A line of strong storms is expected to develop this afternoon and move across much of western and central MA and northern CT before weakening. A few storms could become severe, producing damaging wind gusts. Torrential downpours will also accompany any storms. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. A few strong thunderstorms are again possible Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed. Skywarn spotters should be prepared to relay reports of any wind damage or flooding to the National Weather Service. CTZ004-MAZ005>007-013>024-RIZ001>008-281345- Windham CT-Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA- Barnstable MA-Dukes MA-Nantucket MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI- Washington RI-Newport RI-Block Island RI- 936 AM EDT Fri Jul 27 2018 This Hazardous Weather Outlook is for northern Connecticut, eastern Massachusetts, northeastern Massachusetts, southeastern Massachusetts, and Rhode Island. .DAY ONE...Today and tonight. A few strong thunderstorms are possible this afternoon and evening, mainly west of a line from Boston to Providence. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. A few strong thunderstorms are again possible on Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and again on Saturday. ANZ230>237-250-251-254>256-281345- Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound- Buzzards Bay-Rhode Island Sound-Narragansett Bay-Block Island Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 936 AM EDT Fri Jul 27 2018 This Hazardous Weather Outlook is for Massachusetts and Rhode Island coastal waters. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For the latest updates, please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
In the hours before
Special weather statement, Jul 27, 3:58 PM EDT, 50 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
358 PM EDT FRI JUL 27 2018
MAZ003-008>011-272030-
Western Hampshire MA-Western Hampden MA-Eastern Hampden MA-
Eastern Franklin MA-Eastern Hampshire MA-
358 PM EDT FRI JUL 27 2018
...STRONG THUNDERSTORMS DEVELOPING...
At 356 PM EDT, Doppler radar was tracking a strong thunderstorm over
Easthampton, or near Holyoke, moving northeast at 25 mph.
Winds in excess of 30 mph will accompany this storm.
Locations impacted include...
Westfield, Holyoke, Amherst, Northampton, West Springfield, South
Hadley, Easthampton, Belchertown, Granby, Southampton, Hadley,
Hatfield, Williamsburg, Huntington, Russell, Westhampton, Whately,
Pelham and Montgomery.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.
&&
LAT...LON 4245 7269 4246 7268 4234 7241 4212 7273
4219 7288
TIME...MOT...LOC 1956Z 210DEG 20KT 4226 7271
LECSpecial weather statement, Jul 27, 4:07 PM EDT, 41 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
407 PM EDT FRI JUL 27 2018
MAZ002-003-272030-
Western Franklin MA-Eastern Franklin MA-
407 PM EDT FRI JUL 27 2018
...STRONG THUNDERSTORMS DEVELOPING...
At 406 PM EDT, Doppler radar was tracking a strong thunderstorm over
Greenfield, moving northeast at 20 mph.
Winds in excess of 30 mph will accompany this storm.
Locations impacted include...
Greenfield, Deerfield, Montague, Northfield, Bernardston, Shelburne,
Erving, Colrain, Gill, Warwick and Leyden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.
&&
LAT...LON 4273 7262 4272 7230 4272 7228 4252 7256
4257 7271 4273 7264
TIME...MOT...LOC 2006Z 210DEG 19KT 4258 7261
LECSpecial weather statement, Jul 27, 4:12 PM EDT, 36 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
412 PM EDT FRI JUL 27 2018
MAZ002-003-008-009-272045-
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Eastern Franklin MA-
412 PM EDT FRI JUL 27 2018
...STRONG THUNDERSTORMS DEVELOPING...
At 411 PM EDT, Doppler radar was tracking a strong thunderstorm near
Middlefield, or 12 miles east of Pittsfield, moving northeast at 25
mph.
Winds in excess of 30 mph will accompany this storm along with heavy
rainfall which could lead to localized flooding.
Locations impacted include...
Deerfield, Buckland, Conway, Shelburne, Ashfield, Chester,
Charlemont, Chesterfield, Worthington, Goshen, Cummington, Heath,
Plainfield, Middlefield, Rowe, Hawley and East Windsor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.
&&
LAT...LON 4239 7306 4238 7301 4252 7297 4256 7298
4263 7295 4267 7296 4267 7298 4269 7295
4271 7295 4257 7263 4232 7296 4237 7307
TIME...MOT...LOC 2011Z 214DEG 22KT 4243 7303
LECSpecial weather statement, Jul 27, 4:30 PM EDT, 18 minutes before
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</html>Special weather statement, Jul 27, 4:37 PM EDT, 11 minutes before
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</html>Special weather statement, Jul 27, 4:48 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:35 PM EDT | Special Weather Statement | BOX | Hampden | 25 min |
| Jul 27, 3:58 PM EDT | Special Weather Statement | BOX | Hampshire | 32 min |
| Jul 27, 4:07 PM EDT | Special Weather Statement | BOX | Franklin | 23 min |
| Jul 27, 4:09 PM EDT | Small Craft Advisory | BOX | 6 hr | |
| Jul 27, 4:12 PM EDT | Special Weather Statement | BOX | Franklin | 33 min |
| Jul 27, 4:37 PM EDT | Special Weather Statement | BOX | Franklin | 23 min |
| Jul 27, 4:43 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 32 min |
| Jul 27, 6:17 PM EDT | Special Weather Statement | BOX | Franklin | 43 min |
| Jul 27, 6:51 PM EDT | Special Weather Statement | BOX | Worcester | 39 min |
| Jul 27, 6:57 PM EDT | Special Weather Statement | BOX | Hampshire | 48 min |
| Jul 27, 7:01 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 44 min |
| Jul 27, 7:11 PM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 64 min |
| Jul 27, 7:42 PM EDT | Special Weather Statement | BOX | Franklin, Hampden, Hampshire | 48 min |
| Jul 27, 3:57 PM EDT | Special Weather Statement | BOX | 48 min | |
| Jul 27, 4:30 PM EDT | Special Weather Statement | BOX | 45 min |
Nearby
Special Weather Statements in Massachusetts, 2018Every special weather statement 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.