Alert archive / Massachusetts / Special Weather Statements in 2018

Special Weather Statement, NWS Boston/Norton, MA

July 6, 2018Franklin County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jul 6, 2018, 5:17 AM EDT for Franklin County, Massachusetts. It was in force for 43 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 6, 2018, 5:17 AM EDT (09:17 UTC)
Expired
Jul 6, 2018, 6:00 AM EDT
In force
43 min
Issued by
NWS Boston/Norton, MA

County Franklin County, MA

The radar

The Albany radar (KENX), 101 km from the middle of the area, began a volume at 09:17 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

Brookhaven, NY (KOKX), launched 00:00Z, 9.3 hours before the alert went out and 200 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-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2018-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 914 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2018-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
914 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
809 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
-12 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 Jul 6, 3:40 AM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Jul 6, 3:40 AM EDT, 1 hour 37 minutes before
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Hazardous weather outlook, Jul 6, 3:45 AM EDT, 1 hour 32 minutes before
Hazardous Weather Outlook
National Weather Service Boston/Norton MA
345 AM EDT Fri Jul 6 2018

CTZ002>004-MAZ002>004-008>012-023-024-026-RIZ008-070745-
Hartford CT-Tolland CT-Windham 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-Dukes MA-Nantucket MA-Northern Middlesex MA-
Block Island RI-
345 AM EDT Fri Jul 6 2018

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts, eastern Massachusetts, southeastern Massachusetts,
western Massachusetts and southern Rhode Island.

.DAY ONE...Today and Tonight.

Heavy showers and thunderstorms will bring severe weather with a risk
for isolated flash flooding today. Gusty winds and a brief spinup
tornado are also possible, although this too is a low risk.

.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.

MAZ005>007-013>022-RIZ001>007-070745-
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-Northwest Providence RI-Southeast Providence RI-
Western Kent RI-Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
345 AM EDT Fri Jul 6 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for eastern Massachusetts,
northeastern Massachusetts, southeastern Massachusetts, northern
Rhode Island and southern Rhode Island.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

Gusty winds and a brief spinup tornado are possible with
thunderstorms, although this is a low risk.

.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.

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-
345 AM EDT Fri Jul 6 2018

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Today and Tonight.

A strong thunderstorm is possible across the waters mainly late this
morning and afternoon.

.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 6, 5:17 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 9:47 AM EDTSpecial Weather StatementBOXHampshire43 min
Jul 6, 10:53 AM EDTSpecial Weather StatementBOXNorfolk52 min
Jul 6, 11:44 AM EDTSpecial Weather StatementBOXNorfolk61 min
Jul 6, 11:56 AM EDTSpecial Marine WarningBOX94 min
Jul 6, 12:01 PM EDTSpecial Marine WarningBOX89 min
Jul 6, 12:02 PM EDTSpecial Weather StatementBOXBristol, Plymouth88 min
Jul 6, 12:19 PM EDTSpecial Marine WarningBOX56 min
Jul 6, 12:43 PM EDTSpecial Marine WarningBOX62 min
Jul 6, 12:48 PM EDTSpecial Weather StatementBOXBarnstable, Dukes, Nantucket57 min
Jul 6, 3:11 PM EDTSpecial Weather StatementBOXEssex49 min
Jul 6, 3:44 PM EDTSpecial Marine WarningBOX61 min
Jul 6, 11:24 AM EDTSpecial Weather StatementBOXProvidence81 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.