Alert archive / Massachusetts / Coastal Flood Statements in 2012

Coastal Flood Statement 6, NWS Boston/Norton, MA

December 17, 20126 counties in Massachusetts

NWS Boston/Norton, MA issued this coastal flood statement at Dec 17, 2012, 4:49 AM EST for 6 counties in Massachusetts. It took effect at Dec 17, 2012, 12:00 PM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 17, 2012, 4:49 AM EST (09:49 UTC)
In effect from
Dec 17, 2012, 12:00 PM EST
Expired
Dec 17, 2012, 4:00 PM EST
In force
4 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Essex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA

The radar

The Boston radar (KBOX), 37 km from the middle of the area, began a volume at 09:50 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, 9.8 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-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2012-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Chatham, MA at 00:00Z on 2012-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
592 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

909 
WHUS41 KBOX 170949
CFWBOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
449 AM EST MON DEC 17 2012

...MINOR SPLASHOVER POSSIBLE ALONG THE EASTERN MASSACHUSETTS
COAST DURING THE MID DAY HIGH TIDE...

MAZ007-015-016-019-022-024-171800-
/O.NEW.KBOX.CF.S.0006.121217T1700Z-121217T2100Z/
EASTERN ESSEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
EASTERN PLYMOUTH MA-BARNSTABLE MA-NANTUCKET MA-
449 AM EST MON DEC 17 2012

...MINOR SPLASH OVER POSSIBLE ALONG THE EASTERN MASSACHUSETTS
COAST LATE THIS MORNING AND EARLY THIS AFTERNOON...

* LOCATION...EAST FACING BEACHES.

* COASTAL FLOODING...MINOR SPLASHOVER POSSIBLE.

* TIMING...EARLY THIS AFTERNOON.

* IMPACTS...EXPECT JUST SOME MINOR SPLASHOVER POSSIBLE WITH NO
  SIGNIFICANT IMPACTS.

&&


$$

DUNTEN

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 16, 7:16 PM ESTFreezing Rain AdvisoryBOXHampden14 hr

Nearby

Coastal Flood Statements in Massachusetts, 2012Every coastal flood statement in 2012

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.