Alert archive / Massachusetts / Flood Watches in 2012

Flood Watch 2, NWS Boston/Norton, MA

June 1, 2012Essex County, Middlesex County, Massachusetts; Cheshire County, Hillsborough County, New Hampshire

NWS Boston/Norton, MA issued this flood watch at Jun 1, 2012, 3:20 PM EDT for Essex County, Middlesex County, Massachusetts; Cheshire County, Hillsborough County, New Hampshire. It took effect at Jun 2, 2012, 2:00 PM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Jun 1, 2012, 3:20 PM EDT (19:20 UTC)
In effect from
Jun 2, 2012, 2:00 PM EDT
Expired
Jun 2, 2012, 1:46 PM EDT
In force
Issued by
NWS Boston/Norton, MA
Flood severity
None

Counties Essex County, MA, Middlesex County, MA, Cheshire County, NH, Hillsborough County, NH

The radar

The Boston radar (KBOX), 94 km from the middle of the area, began a volume at 19:23 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

Gray, ME (KGYX), launched 12:00Z, 7.3 hours before the alert went out and 165 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, Gray, ME at 12:00Z on 2012-06-01Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2012-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -128 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1714 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-128 m²/s²
0-3 km storm-relative helicity
-10 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.

730 
WGUS61 KBOX 011920
FFABOX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
320 PM EDT FRI JUN 1 2012

...HEAVY RAINFALL IS EXPECTED SATURDAY INTO SATURDAY NIGHT...

MAZ005>007-014-026-NHZ011-012-015-020330-
/O.NEW.KBOX.FA.A.0002.120602T1800Z-120603T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
SOUTHEAST MIDDLESEX MA-NORTHERN MIDDLESEX MA-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
INCLUDING THE CITIES OF...FRAMINGHAM...LOWELL...LAWRENCE...
GLOUCESTER...CAMBRIDGE...AYER...JAFFREY...KEENE...MANCHESTER...
NASHUA...PETERBOROUGH...WEARE
320 PM EDT FRI JUN 1 2012

...FLOOD WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SUNDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLOOD WATCH FOR PORTIONS OF MASSACHUSETTS AND SOUTHERN NEW 
  HAMPSHIRE...INCLUDING THE FOLLOWING AREAS...IN MASSACHUSETTS...
   CENTRAL MIDDLESEX MA...EASTERN ESSEX MA...NORTHERN MIDDLESEX 
  MA...SOUTHEAST MIDDLESEX MA AND WESTERN ESSEX MA. IN SOUTHERN 
  NEW HAMPSHIRE...CHESHIRE NH...EASTERN HILLSBOROUGH NH AND 
  WESTERN AND CENTRAL HILLSBOROUGH NH. 

* FROM SATURDAY AFTERNOON THROUGH SUNDAY MORNING

* TOTAL RAINFALL OF 2 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS IS
  EXPECTED ACROSS PORTIONS OF NORTHEAST MASSACHUSETTS AND SOUTHERN
  NEW HAMPSHIRE BY SUNDAY MORNING. RAIN WILL OVERSPREAD THE
  REGION SATURDAY MORNING WITH AREAS OF HEAVY RAIN SATURDAY
  AFTERNOON INTO SATURDAY NIGHT. A FEW THUNDERSTORMS ARE ALSO
  POSSIBLE WHICH WOULD ENHANCE RAINFALL RATES.

* AREAS OF URBAN AND POOR DRAINAGE FLOODING ARE ANTICIPATED ALONG
  WITH SHARP RISES ON SMALL STREAMS AND RIVERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$
2 follow-up statements
489 
WGUS61 KBOX 021442
FFABOX

FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
1042 AM EDT SAT JUN 2 2012

...HEAVY RAINFALL IS EXPECTED INTO NIGHT...

MAZ005>007-014-026-NHZ011-012-015-022245-
/O.CON.KBOX.FA.A.0002.120602T1800Z-120603T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
SOUTHEAST MIDDLESEX MA-NORTHERN MIDDLESEX MA-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
INCLUDING THE CITIES OF...FRAMINGHAM...LOWELL...LAWRENCE...
GLOUCESTER...CAMBRIDGE...AYER...JAFFREY...KEENE...MANCHESTER...
NASHUA...PETERBOROUGH...WEARE
1042 AM EDT SAT JUN 2 2012

...FLOOD WATCH REMAINS IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH SUNDAY MORNING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE... 
  INCLUDING THE FOLLOWING AREAS...IN MASSACHUSETTS...CENTRAL 
  MIDDLESEX MA...EASTERN ESSEX MA...NORTHERN MIDDLESEX MA... 
  SOUTHEAST MIDDLESEX MA AND WESTERN ESSEX MA. IN SOUTHERN NEW 
  HAMPSHIRE...CHESHIRE NH...EASTERN HILLSBOROUGH NH AND WESTERN 
  AND CENTRAL HILLSBOROUGH NH. 

* FROM 2 PM EDT THIS AFTERNOON THROUGH SUNDAY MORNING

* TOTAL RAINFALL OF 1 TO 3 INCHES WITH LOCALLY HIGHER AMOUNTS IS
  EXPECTED ACROSS PORTIONS OF NORTHEAST MASSACHUSETTS AND SOUTHERN
  NEW HAMPSHIRE BY SUNDAY MORNING. RAIN WILL CONTINUE THROUGH
  TONIGHT AND FALL HEAVY AT TIMES.

* AREAS OF URBAN AND POOR DRAINAGE FLOODING ARE ANTICIPATED 
  ALONG WITH SHARP RISES ON SMALL STREAMS AND RIVERS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

&&

$$
854 
WGUS61 KBOX 021746
FFABOX

FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
146 PM EDT SAT JUN 2 2012


MAZ005>007-014-026-NHZ011-012-015-021900-
/O.CAN.KBOX.FA.A.0002.120602T1800Z-120603T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
SOUTHEAST MIDDLESEX MA-NORTHERN MIDDLESEX MA-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
INCLUDING THE CITIES OF...FRAMINGHAM...LOWELL...LAWRENCE...
GLOUCESTER...CAMBRIDGE...AYER...JAFFREY...KEENE...MANCHESTER...
NASHUA...PETERBOROUGH...WEARE
146 PM EDT SAT JUN 2 2012

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF NORTHEAST MASSACHUSETTS AND
SOUTHERN NEW HAMPSHIRE HAS BEEN CANCELLED.

SHOWERS ARE STILL EXPECTED AT TIMES THROUGH TONIGHT.  HOWEVER...
THE HEAVIEST RAIN IS NOW EXPECTED TO FALL TO THE NORTHEAST OF
NORTHEAST MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE TONIGHT.
THEREFORE...THE FLOOD WATCH HAS BEEN CANCELLED.

$$

FRANK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 3:04 PM EDTSmall Craft AdvisoryBOX4 days
Jun 1, 4:35 PM EDTHigh Surf AdvisoryBOXBarnstable, Bristol, Dukes, Essex, Nantucket, Norfolk and 2 more24 hr

Nearby

Flood Watches in Massachusetts, 2012Flood Watches in New Hampshire, 2012Every flood watch 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.