Alert archive / Massachusetts / Flash Flood Warnings in 2014

Flash Flood Warning 47, NWS Boston/Norton, MA

October 23, 2014Essex County, Middlesex County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Oct 23, 2014, 5:57 AM EDT for Essex County, Middlesex County, Massachusetts. It was in force for 2 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Oct 23, 2014, 5:57 AM EDT (09:57 UTC)
Expired
Oct 23, 2014, 8:00 AM EDT
In force
2 hr
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
None

Counties Essex County, MA, Middlesex County, MA

The radar

The Boston radar (KBOX), 65 km from the middle of the area, began a volume at 09:57 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.

What was reported inside it

TimeReportWhereRemark
Oct 23, 6:35 AM EDTFLOODPeabody, MATWO FEET OF WATER ON AMERICA DRIVE WITH CAR STUCK IN FLOOD WATERS
Oct 23, 6:39 AM EDTFLOODPeabody, MAROUTE 114 AT THE NORTH SHORE MALL RAMP TO ROUTE 128 ... CAR STUCK IN FLOOD WATERS. STATE POLICE ARE SHUTTING DOWN EXITS FROM ROUTE 128 AT THIS TIME.
Oct 23, 6:45 AM EDTFLOODLynn, MAEASTBOUND LYNNWAY HAS 4 TO 6 INCHES OF WATER CROSSING ALL THREE LANES
Oct 23, 7:21 AM EDTFLOODBeverly, MAFEDERAL STREET CLOSED BETWEEN MACPHERSON AND RANTOUL DUE TO FLOODING. LOTHROP STREET AT ROUTE 127 CLOSED DUE TO FLOODING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 10.0 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.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2014-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 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, Chatham, MA at 00:00Z on 2014-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 373 square meters per square second.19395878Sfc1 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
47 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
461 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
373 m²/s²
0-3 km storm-relative helicity
576 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

620 
WGUS51 KBOX 230957
FFWBOX
MAC009-017-231200-
/O.NEW.KBOX.FF.W.0047.141023T0957Z-141023T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
557 AM EDT THU OCT 23 2014

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MIDDLESEX COUNTY IN NORTHEASTERN MASSACHUSETTS...
  SOUTH CENTRAL ESSEX COUNTY IN NORTHEASTERN MASSACHUSETTS...

* UNTIL 800 AM EDT

* AT 556 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA.  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LYNN...MALDEN...REVERE...PEABODY...SALEM...BEVERLY...WOBURN...NORTH
  ANDOVER...MELROSE...SAUGUS...DANVERS...WAKEFIELD...READING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RAPID AND POTENTIALLY LIFE THREATENING FLOODING OF STREETS AND
UNDERPASSES IS IMMINENT. DO NOT DRIVE THROUGH FLOODED ROADS AND FIND
ALTERNATE ROUTES.

MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.

A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.

&&

LAT...LON 4256 7081 4253 7078 4255 7082 4254 7089
      4253 7090 4253 7087 4250 7089 4252 7086
      4251 7082 4251 7083 4243 7098 4245 7102
      4243 7103 4250 7116 4265 7106

$$

MD

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 22, 8:00 PM EDTSpecial Marine WarningBOX60 min
Oct 22, 8:41 PM EDTSpecial Weather StatementBOXBristol49 min
Oct 22, 8:53 PM EDTSpecial Marine WarningBOX67 min
Oct 22, 9:25 PM EDTSpecial Weather StatementBOXNorfolk, Worcester50 min
Oct 22, 9:56 PM EDTSpecial Marine WarningBOX64 min
Oct 22, 10:48 PM EDTAreal Flood AdvisoryBOXNorfolk57 min
Oct 22, 11:49 PM EDTAreal Flood AdvisoryBOXBristol, Norfolk, Plymouth3 hr
Oct 23, 2:43 AM EDTAreal Flood AdvisoryBOXMiddlesex, Norfolk, Plymouth, Suffolk3 hr
Oct 23, 4:09 AM EDTAreal Flood AdvisoryBOXEssex, Middlesex, Suffolk3 hr
Oct 23, 5:10 AM EDTGale WarningBOX18 hr
Oct 23, 5:10 AM EDTSmall Craft AdvisoryBOX47 hr
Oct 23, 5:46 AM EDTAreal Flood AdvisoryBOXMiddlesex, Norfolk, Plymouth, Suffolk3 hr
Oct 23, 5:53 AM EDTAreal Flood AdvisoryBOXMiddlesex, Worcester112 min
Oct 23, 7:12 AM EDTAreal Flood AdvisoryBOXEssex, Middlesex3 hr
Oct 23, 7:20 AM EDTFlash Flood WarningBOXEssex, Middlesex3 hr
Oct 23, 7:33 AM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire, Worcester117 min
Oct 23, 7:49 AM EDTAreal Flood AdvisoryBOXMiddlesex, Worcester116 min
Oct 23, 7:58 AM EDTAreal Flood WarningBOXMiddlesex, Norfolk, Suffolk2 hr
Oct 23, 7:59 AM EDTAreal Flood WarningBOXFranklin, Hampshire, Worcester3 hr
Oct 23, 8:15 AM EDTSpecial Marine WarningBOX60 min
Oct 23, 8:23 AM EDTAreal Flood WarningBOXMiddlesex, Worcester3 hr
Oct 23, 8:24 AM EDTRiver Flood WarningBOXWorcester15 hr
Oct 23, 8:30 AM EDTAreal Flood AdvisoryBOXHampden, Hampshire2 hr
Oct 23, 9:56 AM EDTAreal Flood WarningBOXEssex, Middlesex, Suffolk3 hr
Oct 23, 10:13 AM EDTAreal Flood WarningBOXHampden, Hampshire4 hr
Oct 23, 10:40 AM EDTAreal Flood WarningBOXFranklin, Hampshire, Worcester4 hr
Oct 23, 12:40 PM EDTAreal Flood WarningBOXEssex3 hr
Oct 23, 2:07 PM EDTAreal Flood WarningBOXFranklin, Hampshire3 hr
Oct 23, 5:11 PM EDTAreal Flood AdvisoryBOXBristol2 hr

Nearby

Flash Flood Warnings in Massachusetts, 2014Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.