Flash Flood Warning 4, NWS Boston/Norton, MA

Issued

Jul 18, 2012, 1:29 PM EDT (17:29 UTC)

Expired

Jul 18, 2012, 3:07 PM EDT

In force

98 min

Issued by

NWS Boston/Norton, MA

Area

Storm-based polygon

Flood severity

None

Counties Essex County, MA, Middlesex County, MA

The Boston radar (KBOX), 76 km from the middle of the area, began a volume at 17:29 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.

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

390 
WGUS51 KBOX 181729
FFWBOX
MAC009-017-182130-
/O.NEW.KBOX.FF.W.0004.120718T1729Z-120718T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
129 PM EDT WED JUL 18 2012

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME NORTHEASTERN MIDDLESEX COUNTY IN SOUTHEAST MASSACHUSETTS...
  ESSEX COUNTY IN EASTERN MASSACHUSETTS...

* UNTIL 530 PM EDT

* AT 121 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. DOPPLER RADAR INDICATES 
  RAINFALL RATES WITH THESE STORMS OF OVER AN INCH AND A HALF AN 
  HOUR. FLASH FLOODING OF POOR DRAINAGE AREA IS EXPECTED TO BEGIN 
  SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LYNN...LAWRENCE...BEVERLY...GLOUCESTER...NEWBURYPORT...NORTH
  ANDOVER...GROVELAND...HAVERHILL...NEWBURY...WEST NEWBURY...PEABODY...
  METHUEN...HAMILTON...WENHAM...DANVERS...READING...WILMINGTON...
  MARBLEHEAD...SWAMPSCOTT...AMESBURY...MERRIMAC...NORTH READING...
  LYNNFIELD...MIDDLETON...ANDOVER...TEWKSBURY...ROCKPORT...IPSWICH...
  TOPSFIELD AND BOXFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT
TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT
OR BY AUTOMOBILE.

&&

LAT...LON 4287 7082 4281 7087 4265 7074 4266 7059
      4258 7066 4261 7066 4253 7078 4254 7089
      4253 7090 4254 7087 4252 7089 4251 7082
      4242 7093 4251 7104 4255 7125 4269 7130
      4281 7116 4289 7090

$$

AED

981 
WGUS71 KBOX 181841
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
241 PM EDT WED JUL 18 2012

MAC009-017-182130-
/O.CON.KBOX.FF.W.0004.000000T0000Z-120718T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIDDLESEX MA-ESSEX MA-
241 PM EDT WED JUL 18 2012

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
EXTREME NORTHEASTERN MIDDLESEX AND ESSEX COUNTIES...

AT 239 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN CONTINUE MOVE ACROSS ESSEX COUNTY. RADAR INDICATE 
RAINFALL RATES OF 1 INCH PER HOUR WITH THESE STORMS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR
OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND
IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE
IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT
TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT
OR BY AUTOMOBILE.

&&

LAT...LON 4287 7081 4281 7087 4265 7073 4266 7059
      4258 7066 4261 7066 4253 7078 4254 7087
      4254 7089 4253 7090 4252 7089 4251 7081
      4242 7093 4251 7104 4255 7125 4269 7130
      4281 7116 4289 7090

$$

AED

002 
WGUS71 KBOX 181907
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
307 PM EDT WED JUL 18 2012

MAC017-009-181916-
/O.CAN.KBOX.FF.W.0004.000000T0000Z-120718T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MIDDLESEX MA-ESSEX MA-
307 PM EDT WED JUL 18 2012

...THE FLASH FLOOD WARNING FOR EXTREME NORTHEASTERN MIDDLESEX AND
ESSEX COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED AS THE THUNDERSTORMS HAVE MOVED OFF 
SHORE FOR THE MOST PART...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT.

LAT...LON 4287 7081 4281 7087 4265 7073 4266 7059
      4258 7066 4261 7066 4253 7078 4254 7087
      4254 7089 4253 7090 4252 7089 4251 7081
      4242 7093 4251 7104 4255 7125 4269 7130
      4281 7116 4289 7090

$$

AED

Flash Flood Warnings in Massachusetts, 2012Every flash flood warning in 2012

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.