Alert archive / Massachusetts / Special Weather Statements in 2019

Special Weather Statement, NWS Boston/Norton, MA

August 6, 2019Franklin County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Aug 6, 2019, 3:31 PM EDT for Franklin County, Massachusetts. It was in force for 29 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 6, 2019, 3:31 PM EDT (19:31 UTC)
Expired: Aug 6, 2019, 4:00 PM EDT
In force: 29 min
Issued by: NWS Boston/Norton, MA

County Franklin County, MA

The radar

The Albany radar (KENX), 91 km from the middle of the area, began a volume at 19:30 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, 7.5 hours before the alert went out and 71 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1483 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Aug 6, 3:06 PM EDT, 25 minutes earlier.

Area forecast discussion, Aug 6, 3:06 PM EDT, 25 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Aug 6, 3:37 AM EDT, 11 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
337 AM EDT Tue Aug 6 2019

CTZ002>004-MAZ002>024-026-RIZ001>008-070745-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA-
Western Essex MA-Eastern Essex MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester 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-
Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
337 AM EDT Tue Aug 6 2019

This Hazardous Weather Outlook is for northern Connecticut, all of
Massachusetts east of Berkshire County, and Rhode Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Thunderstorms on Wednesday and Thursday could produce strong wind
gusts and local downpours. This would mean local wind damage and poor
drainage flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-070745-
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-
337 AM EDT Tue Aug 6 2019

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...Wednesday through Monday.

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/us.nationalweatherservice.boston.gov

You can follow us on Twitter at
@NWSBoston

In the hours before

Special weather statement, Aug 6, 3:31 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Boston/Norton MA
331 PM EDT Tue Aug 6 2019

MAZ002-062000-
Western Franklin MA-
331 PM EDT Tue Aug 6 2019

...TORRENTIAL RAINFALL...

At 328 PM EDT, Doppler radar was tracking a strong thunderstorm over
Monroe, or 8 miles east of North Adams. This storm was nearly
stationary.

This storm is producing heavy rainfall, with amounts up to 1 to 2
inches. Localized flooding is likely in this area.

Locations impacted include...
Monroe, Charlemont and Rowe.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roads or underpasses. Avoid low lying
areas near small streams.

&&

LAT...LON 4274 7302 4274 7286 4268 7286 4265 7294
      4268 7298 4270 7295 4270 7300 4272 7303
TIME...MOT...LOC 1926Z 226DEG 2KT 4273 7295

EVT

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 6, 6:19 AM EDT	Dense Fog Advisory	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more	97 min
Aug 6, 10:29 AM EDT	Special Marine Warning	BOX		46 min
Aug 6, 3:35 PM EDT	Small Craft Advisory	BOX		72 hr

Nearby

Special Weather Statements in Massachusetts, 2019 Every special weather statement in 2019

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.