Alert archive / Massachusetts / Flood Watches in 2011
Flood Watch 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flood watch at Sep 22, 2011, 4:23 PM EDT for 10 counties in Massachusetts; 5 counties in Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Sep 23, 2011, 12:00 PM EDT. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Sep 22, 2011, 4:23 PM EDT (20:23 UTC)
- In effect from
- Sep 23, 2011, 12:00 PM EDT
- Expired
- Sep 24, 2011, 4:38 AM EDT
- In force
- 17 hr
- Issued by
- NWS Boston/Norton, MA
- Flood severity
- None
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Bristol County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI
The radar
The Boston radar (KBOX), 43 km from the middle of the area, began a volume at 20:26 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 12:00Z, 8.4 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 319 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 510 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
347 WGUS61 KBOX 222023 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 423 PM EDT THU SEP 22 2011 CTZ002>004-MAZ017>021-RIZ001>007-230430- /O.NEW.KBOX.FA.A.0009.110923T1600Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN BRISTOL MA- WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA- SOUTHERN PLYMOUTH MA-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...TAUNTON...BROCKTON...PLYMOUTH... FALL RIVER...NEW BEDFORD...MATTAPOISETT...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 423 PM EDT THU SEP 22 2011 ...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT...SOUTHEASTERN MASSACHUSETTS AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS... IN NORTHERN CONNECTICUT...HARTFORD...TOLLAND AND WINDHAM. IN SOUTHEASTERN MASSACHUSETTS...PLYMOUTH AND BRISTOL. IN RHODE ISLAND...BRISTOL...KENT...NEWPORT...PROVIDENCE...AND WASHINGTON. * FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING. * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. HEAVY RAINFALL WITH AMOUNTS OF 1 TO 3 INCHES IS EXPECTED WITH LOCALLY HEAVIER AMOUNTS PLAUSIBLE...YET THE DISCREET NATURE OF WHICH STILL REMAINS UNDER SOME UNCERTAINTY. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>016-026-230430- /O.NEW.KBOX.FA.A.0009.110924T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA- SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...GLOUCESTER... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... MILFORD...WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON... QUINCY...AYER 423 PM EDT THU SEP 22 2011 ...FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF MASSACHUSETTS...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS...WORCESTER. IN EASTERN MASSACHUSETTS...MIDDLESEX...NORFOLK AND SUFFOLK. IN NORTHEASTERN MASSACHUSETTS...ESSEX. IN WESTERN MASSACHUSETTS... FRANKLIN...HAMPDEN...AND HAMPSHIRE. * FROM FRIDAY EVENING THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. HEAVY RAINFALL WITH AMOUNTS OF 1 TO 3 INCHES IS EXPECTED WITH LOCALLY HEAVIER AMOUNTS PLAUSIBLE...YET THE DISCREET NATURE OF WHICH STILL REMAINS UNDER SOME UNCERTAINTY. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$ SIPPRELL
6 follow-up statements
946 WGUS61 KBOX 230321 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 1121 PM EDT THU SEP 22 2011 CTZ002>004-MAZ017>021-RIZ001>007-231130- /O.CON.KBOX.FA.A.0009.110923T1600Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN BRISTOL MA- WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA- SOUTHERN PLYMOUTH MA-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...TAUNTON...BROCKTON...PLYMOUTH... FALL RIVER...NEW BEDFORD...MATTAPOISETT...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 1121 PM EDT THU SEP 22 2011 ...FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...SOUTHEASTERN MASSACHUSETTS AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT...TOLLAND CT AND WINDHAM CT. IN SOUTHEASTERN MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA...SOUTHERN BRISTOL MA...SOUTHERN PLYMOUTH MA AND WESTERN PLYMOUTH MA. IN RHODE ISLAND...BRISTOL RI...EASTERN KENT RI...NEWPORT RI...NORTHWEST PROVIDENCE RI...SOUTHEAST PROVIDENCE RI...WASHINGTON RI AND WESTERN KENT RI. * FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. HEAVY RAINFALL WITH AMOUNTS OF 1 TO 3 INCHES IS EXPECTED WITH LOCALLY HEAVIER AMOUNTS PLAUSIBLE...YET THE DISCREET NATURE OF WHICH STILL REMAINS UNCERTAIN. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>016-026-231130- /O.CON.KBOX.FA.A.0009.110924T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA- SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...GLOUCESTER... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... MILFORD...WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON... QUINCY...AYER 1121 PM EDT THU SEP 22 2011 ...FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS... NORTHEASTERN MASSACHUSETTS AND WESTERN MASSACHUSETTS... INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS... NORTHERN WORCESTER MA AND SOUTHERN WORCESTER MA. IN EASTERN MASSACHUSETTS...CENTRAL MIDDLESEX MA...EASTERN NORFOLK MA... NORTHERN MIDDLESEX MA...SOUTHEAST MIDDLESEX MA...SUFFOLK MA AND WESTERN NORFOLK MA. IN NORTHEASTERN MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA... EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. * FROM FRIDAY EVENING THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. HEAVY RAINFALL WITH AMOUNTS OF 1 TO 3 INCHES IS EXPECTED WITH LOCALLY HEAVIER AMOUNTS PLAUSIBLE...YET THE DISCREET NATURE OF WHICH STILL REMAINS UNCERTAIN. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$
727 WGUS61 KBOX 230736 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 336 AM EDT FRI SEP 23 2011 CTZ002>004-MAZ017>021-RIZ001>007-231545- /O.CON.KBOX.FA.A.0009.110923T1600Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN BRISTOL MA- WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA- SOUTHERN PLYMOUTH MA-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...TAUNTON...BROCKTON...PLYMOUTH... FALL RIVER...NEW BEDFORD...MATTAPOISETT...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 336 AM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT FROM NOON EDT TODAY THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...SOUTHEASTERN MASSACHUSETTS AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT...TOLLAND CT AND WINDHAM CT. IN SOUTHEASTERN MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA...SOUTHERN BRISTOL MA...SOUTHERN PLYMOUTH MA AND WESTERN PLYMOUTH MA. IN RHODE ISLAND...BRISTOL RI...EASTERN KENT RI...NEWPORT RI...NORTHWEST PROVIDENCE RI...SOUTHEAST PROVIDENCE RI...WASHINGTON RI AND WESTERN KENT RI. * FROM NOON EDT TODAY THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE EXACT LOCATIONS OF HEAVIEST RAINFALL ARE STILL SOMEWHAT UNCERTAIN. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>016-026-231545- /O.CON.KBOX.FA.A.0009.110924T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA- SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...GLOUCESTER... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... MILFORD...WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON... QUINCY...AYER 336 AM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS... NORTHEASTERN MASSACHUSETTS AND WESTERN MASSACHUSETTS... INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS... NORTHERN WORCESTER MA AND SOUTHERN WORCESTER MA. IN EASTERN MASSACHUSETTS...CENTRAL MIDDLESEX MA...EASTERN NORFOLK MA... NORTHERN MIDDLESEX MA...SOUTHEAST MIDDLESEX MA...SUFFOLK MA AND WESTERN NORFOLK MA. IN NORTHEASTERN MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA... EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. * FROM THIS EVENING THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE EXACT LOCATIONS OF HEAVIEST RAINFALL ARE STILL SOMEWHAT UNCERTAIN. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$
120 WGUS61 KBOX 231515 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 1115 AM EDT FRI SEP 23 2011 CTZ002>004-MAZ017>021-RIZ001>007-240115- /O.CON.KBOX.FA.A.0009.110923T1600Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN BRISTOL MA- WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA- SOUTHERN PLYMOUTH MA-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...TAUNTON...BROCKTON...PLYMOUTH... FALL RIVER...NEW BEDFORD...MATTAPOISETT...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 1115 AM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...SOUTHEASTERN MASSACHUSETTS AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT...TOLLAND CT AND WINDHAM CT. IN SOUTHEASTERN MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA...SOUTHERN BRISTOL MA...SOUTHERN PLYMOUTH MA AND WESTERN PLYMOUTH MA. IN RHODE ISLAND...BRISTOL RI...EASTERN KENT RI...NEWPORT RI...NORTHWEST PROVIDENCE RI...SOUTHEAST PROVIDENCE RI...WASHINGTON RI AND WESTERN KENT RI. * THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE HEAVIEST RAINFALL AREA WILL BE ACROSS CONNECTICUT AND WESTERN MASSACHUSETTS. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>016-026-240115- /O.CON.KBOX.FA.A.0009.110924T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-WESTERN NORFOLK MA- SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...GLOUCESTER... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... MILFORD...WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON... QUINCY...AYER 1115 AM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH SATURDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS... NORTHEASTERN MASSACHUSETTS AND WESTERN MASSACHUSETTS... INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS... NORTHERN WORCESTER MA AND SOUTHERN WORCESTER MA. IN EASTERN MASSACHUSETTS...CENTRAL MIDDLESEX MA...EASTERN NORFOLK MA... NORTHERN MIDDLESEX MA...SOUTHEAST MIDDLESEX MA...SUFFOLK MA AND WESTERN NORFOLK MA. IN NORTHEASTERN MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA... EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. * FROM 8 PM EDT THIS EVENING THROUGH SATURDAY EVENING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE HEAVIEST RAINFALL AREA WILL BE WESTERN AND CENTRAL MASSACHUSETTS. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ DUNTEN
235 WGUS61 KBOX 232043 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 443 PM EDT FRI SEP 23 2011 MAZ017>021-232145- /O.CAN.KBOX.FA.A.0009.000000T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA- SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA- INCLUDING THE CITIES OF...TAUNTON...BROCKTON...PLYMOUTH... FALL RIVER...NEW BEDFORD...MATTAPOISETT 443 PM EDT FRI SEP 23 2011 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR A PORTION OF SOUTHEASTERN MASSACHUSETTS HAS BEEN CANCELLED. APPEARS THAT THE HIGHEST AMOUNT OF PRECIPITATION WILL OCCUR ACROSS WEST OF THE AREA. THEREFORE HAVE CANCELLED THE FLOOD WATCH. $$ MAZ006-007-013>016-232145- /O.CAN.KBOX.FA.A.0009.110924T0000Z-110925T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN NORFOLK MA- SOUTHEAST MIDDLESEX MA-SUFFOLK MA-EASTERN NORFOLK MA- INCLUDING THE CITIES OF...LAWRENCE...GLOUCESTER...FOXBORO... NORWOOD...CAMBRIDGE...BOSTON...QUINCY 443 PM EDT FRI SEP 23 2011 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR PORTIONS OF EASTERN MASSACHUSETTS AND NORTHEASTERN MASSACHUSETTS HAS BEEN CANCELLED. APPEARS THAT THE HIGHEST AMOUNT OF PRECIPITATION WILL OCCUR ACROSS WESTERN MASSACHUSETTS. THEREFORE HAVE CANCELLED THE FLOOD WATCH. $$ CTZ002>004-RIZ001>007-240430- /O.EXT.KBOX.FA.A.0009.000000T0000Z-110924T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 443 PM EDT FRI SEP 23 2011 ...FLOOD WATCH NOW IN EFFECT THROUGH SATURDAY MORNING... THE FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF NORTHERN CONNECTICUT AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT... TOLLAND CT AND WINDHAM CT. IN RHODE ISLAND...BRISTOL RI... EASTERN KENT RI...NEWPORT RI...NORTHWEST PROVIDENCE RI... SOUTHEAST PROVIDENCE RI...WASHINGTON RI AND WESTERN KENT RI. * THROUGH SATURDAY MORNING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE HEAVIEST RAINFALL AREA WILL BE ACROSS CONNECTICUT AND WESTERN MASSACHUSETTS FOCUSING ON THE BERKSHIRES. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>005-008>012-026-240430- /O.EXT.KBOX.FA.A.0009.110924T0000Z-110924T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA- EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...CHESTERFIELD... BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD...MILFORD... WORCESTER...AYER 443 PM EDT FRI SEP 23 2011 ...FLOOD WATCH NOW IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH SATURDAY MORNING... THE FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS AND WESTERN MASSACHUSETTS...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS...NORTHERN WORCESTER MA AND SOUTHERN WORCESTER MA. IN EASTERN MASSACHUSETTS...CENTRAL MIDDLESEX MA AND NORTHERN MIDDLESEX MA. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA... WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. * FROM 8 PM EDT THIS EVENING THROUGH SATURDAY MORNING * A PROLONGED PERIOD OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS IS ANTICIPATED. RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HEAVIER AMOUNTS LIKELY. THE HEAVIEST RAINFALL AREA WILL BE WESTERN AND CENTRAL MASSACHUSETTS...FOCUSING ON THE BERKSHIRES. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$ DUNTEN
537 WGUS61 KBOX 240352 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 1152 PM EDT FRI SEP 23 2011 CTZ002>004-RIZ001>007-241200- /O.CON.KBOX.FA.A.0009.000000T0000Z-110924T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...FOSTER...SMITHFIELD... PROVIDENCE...WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT... WESTERLY...NEWPORT 1152 PM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 AM EDT SATURDAY... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT AND RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT... TOLLAND CT AND WINDHAM CT. IN RHODE ISLAND...BRISTOL RI... EASTERN KENT RI...NEWPORT RI...NORTHWEST PROVIDENCE RI... SOUTHEAST PROVIDENCE RI...WASHINGTON RI AND WESTERN KENT RI. * UNTIL 10 AM EDT SATURDAY * AREAS OF RAIN WILL CONTINUE TO MOVE THROUGH THE WATCH AREA OVERNIGHT. AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE WITH LOCALLY HIGHER AMOUNTS IN HEAVIER SHOWERS. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. 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. && $$ MAZ002>005-008>012-026-241200- /O.CON.KBOX.FA.A.0009.000000T0000Z-110924T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- CENTRAL MIDDLESEX MA-WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA- EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA- NORTHERN MIDDLESEX MA- INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE... BARRE...FITCHBURG...FRAMINGHAM...LOWELL...CHESTERFIELD... BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD...MILFORD... WORCESTER...AYER 1152 PM EDT FRI SEP 23 2011 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 AM EDT SATURDAY... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS AND WESTERN MASSACHUSETTS...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MASSACHUSETTS...NORTHERN WORCESTER MA AND SOUTHERN WORCESTER MA. IN EASTERN MASSACHUSETTS...CENTRAL MIDDLESEX MA AND NORTHERN MIDDLESEX MA. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA... WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. * UNTIL 10 AM EDT SATURDAY * AREAS OF RAIN WILL CONTINUE TO MOVE THROUGH THE WATCH AREA OVERNIGHT. AN ADDITIONAL 1 TO 2 INCHES IS POSSIBLE WITH LOCALLY HIGHER AMOUNTS IN HEAVIER SHOWERS. * FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE... ALONG WITH POTENTIAL FLOODING IMPACTS TO SMALL STREAMS AND CREEKS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
205 WGUS61 KBOX 240838 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 438 AM EDT SAT SEP 24 2011 CTZ002>004-MAZ002>005-008>012-026-RIZ001>007-240945- /O.CAN.KBOX.FA.A.0009.000000T0000Z-110924T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA- EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-SOUTHERN WORCESTER MA-NORTHERN MIDDLESEX MA- NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI- EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...CHESTERFIELD... BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD...MILFORD... WORCESTER...AYER...FOSTER...SMITHFIELD...PROVIDENCE... WEST GREENWICH...WARWICK...BRISTOL...NARRAGANSETT...WESTERLY... NEWPORT 438 AM EDT SAT SEP 24 2011 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT... MASSACHUSETTS AND RHODE ISLAND HAS BEEN CANCELLED. THE HEAVY RAIN HAS MOVED TO THE EAST AND NORTH OF THE WATCH AREA. THERE WILL BE A CHANCE OF SHOWERS DURING THE DAY BUT LESS THAN 0.25 INCHES OF RAIN IS EXPECTED. NO NEW FLOODING IS EXPECTED. $$ AED
What forecasters said that day
The local office's own words before this flood watch 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 flood watch went out at Sep 22, 4:07 PM EDT, 16 minutes earlier.
Area forecast discussion, Sep 22, 4:07 PM EDT, 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
407 PM EDT THU SEP 22 2011
.SYNOPSIS...
AN EXTENDED PERIOD OF UNSETTLED WEATHER WITH SHOWERS AND LOCALLY
HEAVY RAINFALL IS LIKELY FRI INTO SAT EVENING. AN EXTENDED PERIOD
OF MAINLY DRY WEATHER IS EXPECTED SUN/MON WITH SOMEWHAT HUMID
CONDITIONS. THE THREAT FOR UNSETTLED WEATHER WILL RETURN SOMETIME
TUE/WED.
&&
.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
SCTD SHOWERS AND ISO T-STORM ACTIVITY TO DIMINISH INTO THE OVRNGT PD
AS DIURNAL MIXING WILL CONCLUDE UNDER THE INFLUENCE OF RISING HGHTS
AT MID-LVLS...ENTRAINING DRY AIR...AND COLLOCATED SUBSIDENCE.
EXPECT MODEST RAINFALL RATES AND REDUCED VSBYS WITH THESE ISOLATED
STORMS.
EXPECTING A QUIET NIGHT AHEAD OF A MID-LVL DISTURBANCE INVIGORATING
THRU THE MID-ATLANTIC. FCST GUIDANCE EXHIBITS WARMER AND DRIER MID-
LVL AIR AHEAD OF THE SYS...CAPPING THE LLVLS. THINKING THE BEST
INGREDIENTS OF LOW- TO MID-LVL FORCING COUPLED WITH THE BETTER
THETAE AXIS WILL REMAIN TO THE S/W OF THE FCST AREA. ANTICIPATE
LIKELY POPS S OF NEW ENGLAND BY MORNING ALONG THE LEADING EDGE OF A
DEVELOPING LLJ. SW ISENTROPIC ASCENT ACROSS THE RGN WILL RESULT
IN MOSTLY CLOUDY CONDITIONS THRU THE OVRNGT...WITH SLY ONSHORE
FLOW. SOME WEAK ISENTROPIC LIFT COULD LEND TO SCTD SHOWERY WX...
HAVE CHC POPS ACCORDINGLY. LOOKING AT ANOTHER NIGHT OF MUGGY
CONDITIONS WITH PATCHY FOG AND PERHAPS SOME LIGHT DRIZZLE. MILD
MINS IN THE LOW-MID 60S...UPR 60S FOR THE S SHORELINE.
&&
.SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/...
FRIDAY...
SFC LOW PRES LIFTS NWD THRU THE MID-ATLANTIC EAST OF WHICH A
SECONDARY WARM FRNT BOUNDRY ENCROACHES UPON THE FCST RGN FROM THE S.
THIS FRNTL BOUNDARY ACTS AS DISTINCT REGION OF LOW- TO MID-LVL
CONVERGENCE OF A LLJ /ISENTROPICALLY LIFTED/ HIGH THETAE AXIS...
WITH VALUES OF 340K. WITH NOTABLE FORCING PER DIFLUENT MOTIONS ALOFT
AND ATTENDANT SHRTWV ENERGY THRU THE LONGWAVE PATTERN...FEEL A SLUG
OF RAIN WITH EMBEDDED HEAVIER SHOWERS AND PSBL ISO T-STORMS IS QUITE
PLAUSIBLE FOR S NEW ENGLAND...WHILE N LOCALES WILL LIKELY BE DRY AS
WAA FROM SW FLOW LENDS TO RISING HEIGHTS AND INCREASED INFLUENCE OF
THE W ATLANTIC RIDGE THRU INTERIOR AND N NEW ENGLAND. IT WILL BE ON
THE S PERIPHERY OF THIS RIDGE WHERE THE THETAE AXIS CONVERGES. FEEL
GUIDANCE IS BROAD ON ITS QPF...AND IT WILL BE PSBL FOR DISTINCT
HEAVIER SHOWERS...AND ISO T-STORMS...LENDING TO DISCREET HEAVY
RAINFALL RATES IN A VERY MOIST PROFILE. AS SUCH WILL GO WITH LIKELY
POPS FOR MUCH OF THE FCST RGN...WITH THE HEAVIER RAIN AMNTS ALONG S
NEW ENGLAND.
IN ADDITION...WILL BEGIN A FLOOD WATCH FOR CT/RI/SE MA BY MIDDAY
FRIDAY...AND FOR THE REMAINDER OF MA BY DUSK. FFG VALUES ARE ABOVE
ON AVG 2 INCHES IN A ONE-HR PD. ALTHO THIS MAY BE PSBL WITH EMBEDDED
HEAVY SHOWERS... YET THERE IS A SUBSTANTIAL AMNT OF UNCERTAINTY...
FEEL THE MORE PLAUSIBLE IMPACT WITH ANTICIPATED RAINS IS FOR
FLOODING IMPACTS OF POOR DRAINAGE AND URBAN AREAS...INCLUDING SOME
IMPACTS TO SMALL STREAMS AND CREEKS.
SLY WINDS WILL BACK OUT OF THE E WITH THE APPROACHING WARM FRNTL
BNDRY FROM THE S. WILL SEE MAX TEMPS THRU THE RGN IN THE UPR 60S TO
LOW 70S WITH ANTICIPATED ANTECEDENT CONDITIONS DISCUSSED ABOVE.
FRIDAY NIGHT...
AS THE SFC LOW THRU THE MID-ATLANTIC OCCLUDES BACK INTO THE GRT LKS
RGN...WILL SEE A CONTINUED PIPELINE OF HIGH THETAE AIR CONVERGENT
THRU S/SE NEW ENGLAND ALONG A SFC WRM FRNT WOBBLING NWD AGAINST THE
W ATLANTIC RIDGE. WILL STILL SEE SUBSTANTIAL ATMOS FORCING VIA
DIFLUENT FLOW ALOFT /RIGHT ENTRANCE RGN OF THE H3 JET STREAK/ AND
ATTENDANT SHRTWV ENERGY THRU THE LONGWAVE PATTERN. FEEL THIS WILL BE
THE BEST TIME OF HEAVIEST RAINS WITH STRONGEST MID-LVL CONVERGENCE
OF HIGH THETAE AIR. PERHAPS SOME WEAK INSTABILITY AND AN ISO
T-STORM. IN ALL...EMBEDDED HEAVIER SHOWERS APPEAR LIKELY WITH
DISCREET RAINFALL RATES. FOR THE ENTIRE PERIOD...FEEL RAINFALL AMNTS
OF 1 TO 2 INCHES WILL BE PLAUSIBLE...AND THE FLOOD WATCH WILL
CONTINUE THRU THE PD ACCORDINGLY.
SE ONSHORE FLOW WILL RESULT IN CONTINUED MUGGY AND MOIST CONDITIONS
WITHIN THE LLVLS. ANOTHER NIGHT OF LOW CLOUDS AND PATCHY FOG WILL BE
LIKELY. MIN TEMPS WILL REMAIN MILD WITH THE AMNT OF MOISTURE WITH
VALUES IN THE LOW-MID 60S.
&&
.LONG TERM /SATURDAY THROUGH THURSDAY/...
HIGHLIGHTS...
* PERIODS OF SHOWERS WITH LOCALLY HEAVY RAINFALL SAT
* MAINLY DRY AND SOMEWHAT HUMID WEATHER SUN/MON
* UNSETTLED WEATHER AT TIMES LOOKS TO RETURN TUE/WED
DETAILS...
SATURDAY AND SATURDAY NIGHT...
DEEP CLOSED UPPER LEVEL LOW OVER THE GREAT LAKES WILL CONTINUE TO
RESULT IN SOUTH TO SOUTHWEST FLOW ALOFT. THIS MID LEVEL LIFT WILL
COMBINE WITH HIGH PWAT VALUES AROUND 2 INCHES. THIS SHOULD RESULT
IN PERIODS OF RAIN SHOWERS...SO LIKELY TO CATEGORICAL POPS APPEAR
REASONABLE. THE HIGH PWAT VALUES IN PLACE WILL CONTINUE TO BRING
THE RISK OF LOCALLY HEAVY RAINFALL WITH ANY SHOWERS.
HOWEVER...CONFIDENCE ON TIMING/LOCATION OF WHERE THE HEAVIEST RAIN
SETUP REMAINS LOW. NONETHELESS...THE POTENTIAL FOR MAINLY
LOCALIZED FLOODING WILL EXIST SO THE FLOOD WATCH CONTINUES THROUGH
SAT AFTERNOON. HIGHS WILL MAINLY BE IN THE LOWER TO MIDDLE 70S AND
IT WILL BE SOMEWHAT HUMID.
THE CHANCE FOR SCATTERED SHOWERS WILL CONTINUE SATURDAY NIGHT.
HOWEVER...THE AREAL COVERAGE AND INTENSITY SHOULD DIMINISH AS THE
LOW LEVEL JET IS EXPECTED TO WEAKEN AND SOME MID LEVEL DRY AIR WORKS
INTO THE REGION. LOW TEMPERATURES SHOULD MAINLY BE IN THE LOWER TO
MIDDLE 60S.
FINALLY...AREAS OF FOG ARE EXPECTED AT TIMES SAT AND SAT NIGHT WITH
AN ABUNDANCE OF LOW LEVEL MOISTURE.
SUNDAY AND MONDAY...
CONFIDENCE REMAINS SOMEWHAT LOW IN REGARDS TO PRECIPITATION CHANCES
OVER THIS PERIOD. HOWEVER...THE MAJORITY OF THE LATEST MODELS
INDICATE THAT THE UPPER LEVEL LOW OVER THE GREAT LAKES WILL
RETROGRADE TO THE WEST. THIS ALLOWS SOME MID LEVEL RIDGING TO BUILD
ACROSS SOUTHERN NEW ENGLAND. THEREFORE...GUT FEELING IS THAT MUCH
OF THIS PERIOD WILL FEATURE DRY WEATHER. STILL CAN/T RULE OUT A
SPOT SHOWER OR TWO...BUT OVERALL FAVORING MAINLY DRY WEATHER AT THIS
TIME. THEREFORE...WILL JUST INCLUDE SOME SLIGHT CHANCE POPS.
TEMPERATURES LOOKS TO AVERAGE ABOVE NORMAL FOR THIS TIME OF
YEAR...WITH HIGHS WELL UP INTO THE 70S TO NEAR 80. IT WILL ALSO BE
RATHER HUMID WITH RELATIVELY HIGH DEWPOINTS IN PLACE.
TUESDAY AND WEDNESDAY...
THE DEEP CLOSED UPPER LEVEL LOW WILL BEGIN TO MOVE BACK TO THE EAST
OVER THIS TIME. THIS SHOULD INCREASE SYNOPTIC FORCING WITH STILL
RELATIVELY HIGH PWATS IN PLACE. TIMING IS UNCERTAIN AT IT WON/T
NECESSARILY RAIN THE ENTIRE PERIOD...BUT FEEL HIGH CHANCE POPS ARE
WARRANTED FOR MUCH OF THE TIME. LOCALLY HEAVY RAINFALL WILL ONCE
AGAIN BE POSSIBLE WITH THE RELATIVELY HIGH PWATS IN PLACE...BUT
TIMING/LOCATIONS ONCE AGAIN REMAINS LOW.
&&
.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
FORECASTER CONFIDENCE LEVELS...
LOW...LESS THAN 30 PERCENT
MODERATE...30 PERCENT TO 60 PERCENT
HIGH...GREATER THAN 60 PERCENT
REST OF TODAY...
MODERATE CONFIDENCE. PER SATELLITE TRENDS...DRIER AIR AND
SUBSIDENCE GRADUALLY ERODING THE MID-DECK AND ALLOWING LLVLS TO
MIX. FEEL MVFR/VFR OVER THE CT VLY TO TRANSLATE NE. ANTICIPATE SE
TERMINALS TO IMPROVE...NERN TERMINALS TO BE THE LAST. SLY FLOW
CONTINUES. BIGGER CHALLENGE IS ANTICIPATING THE DISCREET NATURE OF
SHRA DEVELOPING W OF NEW ENGLAND. WILL MONITOR AND AMEND AS
NECESSARY...AND DIRECT IMPACTS TO TERMINALS WILL LIKELY RESULT IN
TEMPO MVFR/IFR. LOW CONFIDENCE ON TS CHCS...SO NO MENTION IN TAF.
TONIGHT...
MODERATE CONFIDENCE. OVRNGT COOLING SHOULD RESULT IN DETERIORATING
CONDITIONS SIMILAR TO THE PREV EVNG. EXPECTING IFR/LIFR CIGS WITH
INTERMITTENT IMPACTS TO VSBYS. LOW CONFIDENCE IN TIMING. HAVE GONE
CONSERVATIVE IN VSBYS WITH MVFR...BUT WOULD NOT BE SURPRISED IF
IFR/LIFR DEVELOPED IN PARTS. SLY FLOW CONTINUES.
FRIDAY INTO FRIDAY NIGHT...
MODERATE CONFIDENCE. RAINS ENCROACHING FROM THE S...ANTICIPATE
CONDITIONS TO SLIGHTLY IMPROVE IFR TO MVFR AS THE RAINS PRESS NWD.
LOW CONFIDENCE ON TIMING. LIKELY TO BE EMBEDDED HEAVIER RAINS TO
RESULT IN VSBY IMPACTS. SLY FLOW CONTINUES. CONDITIONS TO
DETERIORATE AGAIN INTO THE EVNG PD. PSBL ISOLATED THUNDER...BUT
LOW CONFIDENCE THUS NO MENTION IN TAF.
KBOS TERMINAL...
MODERATE CONFIDENCE. CONDITIONS IMPROVED TO VFR...ANTICIPATE
CONDITIONS TO GRADUALLY DETERIORATE AGAIN TO MVFR/IFR INTO THE
EVNG. SLIGHT IMPROVEMENT DURING THE MRNG PD...BUT WITH ONCOMING
RAINS FROM THE S...AM NOT ANTICIPATING IMPROVEMENT BEYOND MVFR.
SLY FLOW BACKING E WITH AN APPROACHING WARM FRNT INTO FRI. LIKELY
FOG AND SHRA IMPACTS...THOUGH LOW CONFIDENCE ON TIMING AND
SPECIFICS.
OUTLOOK...SATURDAY THROUGH TUESDAY...
SATURDAY AND SATURDAY NIGHT...MODERATE TO HIGH CONFIDENCE. SHOWERS
WITH LOCALLY HEAVY RAINFALL AND AREAS OF FOG WILL RESULT IN PERIODS
OF IFR CONDITIONS.
SUNDAY AND MONDAY...MODERATE CONFIDENCE. MVFR-IFR CONDITIONS IN LOW
CLOUDS AND FOG ARE LIKELY DURING THE OVERNIGHT/EARLY MORNING
HOURS... BUT VFR CONDITIONS MAY PREVAIL DURING THE LATE
MORNING/AFTERNOON HOURS.
TUESDAY...MODERATE CONFIDENCE. MVFR-IFR CONDITIONS POSSIBLE IN LOW
CLOUDS...FOG PATCHES AND SHOWERS.
&&
.MARINE...
WINDS AND SEAS REMAIN BELOW SCA THRESHOLDS THROUGH SATURDAY. SLY
FLOW SHIFTING MORE TO THE E LATE DAY FRI. MAY SEE GUSTS 15 TO 20
KTS.
OUTLOOK...SATURDAY THROUGH TUESDAY...
THE MAIN CONCERN FOR MARINERS WILL BE FOR AREAS OF FOG...WHICH MAY
BE LOCALLY DENSE AT TIMES ESPECIALLY DURING THE OVERNIGHT AND EARLY
MORNING HOURS. WEAK PRESSURE GRADIENT WILL KEEP WINDS GENERALLY
BELOW SCA THRESHOLDS. SEAS ACROSS MOST WATERS WILL ALSO BE MAINLY
BELOW SCA CRITERIA. HOWEVER...MARGINAL 5 FOOT SEAS ARE POSSIBLE
THIS WEEKEND AS A RESULT OF SOUTHERLY SWELL.
&&
.HYDROLOGY...
* FLOOD WATCH IN EFFECT FOR MIDDAY FRIDAY INTO SATURDAY FOR
MASSACHUSETTS...CONNECTICUT...AND RHODE ISLAND
HEAVY RAIN IS EXPECTED FRIDAY INTO SATURDAY AS A STRONG LLJ
USHERS IN A ROBUST MOIST AIRMASS WITH PWAT VALUES AROUND 2.0
INCHES...THE BEST AXIS OF WHICH WILL ORIENT THRU S NEW ENGLAND
FRIDAY EVNG...NEWD ACROSS THE E SHORELINE OF MASSACHUSETTS INTO
SAT. RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE ANTICIPATED FOR THE
PERIOD...WITH THE EXPECTATION OF LOCALLY HIGHER AMOUNTS DUE TO
EMBEDDED HEAVIER SHOWERS AND ISOLATED THUNDERSTORMS. MUCH OF THE
FCST GUIDANCE IS IN AGREEMENT ON THIS SOLN...BUT THERE IS STILL
SOME UNCERTAINTY AS TO THE DISTINCT AND DISCREET NATURE OF HEAVY
RAINS.
AFTER A BREAK OVER THE WEEKEND...ALTHOUGH ONE WITH POTENTIAL FOR
SCATTERED SHOWERS...ONE OR MORE ADDITIONAL PERIODS OF HEAVY RAIN
ARE POSSIBLE DURING THE EARLY WEEK. THE GFS BRINGS ONE THROUGH
LATER SUNDAY NIGHT AND EARLY MONDAY...THEN ANOTHER ON TUESDAY. THE
ECMWF FOCUSES ON TUESDAY. WHATEVER THE TIMING...THE RAIN WILL
FALL ON ALREADY SOAKED GROUND.
FFG VALUES PRESENTLY AVERAGE 2 TO 2.5 INCHES...3.0 INCHES...AND 3.5
INCHES FOR 1-...3-...AND 6-HR PERIODS...RESPECTIVELY. RECENT AND
ONGOING RAINS PRESENTLY WILL LIKELY IMPACT THE FCST AREA LATE
TONIGHT INTO THURSDAY WHICH WILL IMPACT FFG VALUES. THE FIRST
POTENTIAL EVENT OF HEAVY RAINFALL FOR FRIDAY WILL ALSO LIKELY
NUDGE FFG VALUES LOWER FOR THE POTENTIAL LATER EVENTS.
FORECASTS ARE LIKELY TO CHANGE OVER THE NEXT FEW DAYS. THE AXIS OF
HEAVIEST RAINS WILL PROBABLY SHIFT BOTH TEMPORALLY AND SPATIALLY.
NEVERTHELESS THE PUBLIC SHOULD TAKE NOTICE...ESPECIALLY THOSE WITH
INTERESTS ALONG RIVERS...SMALL STREAMS...AND LOW LYING AREAS...FOR
THE POTENTIAL OF A FLOODING EVENT.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...FLOOD WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING FOR
CTZ002>004.
MA...FLOOD WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING FOR
MAZ017>021.
FLOOD WATCH FROM FRIDAY EVENING THROUGH SATURDAY EVENING FOR
MAZ002>016-026.
NH...NONE.
RI...FLOOD WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING FOR
RIZ001>007.
MARINE...NONE.
&&
SYNOPSIS...FRANK/SIPPRELL
NEAR TERM...SIPPRELL
SHORT TERM...SIPPRELL
LONG TERM...FRANK
AVIATION...FRANK/SIPPRELL
MARINE...FRANK/SIPPRELL
HYDROLOGY...SIPPRELL/DOODYHazardous weather outlook, Sep 22, 4:10 AM EDT, 12 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAUNTON MA 410 AM EDT THU SEP 22 2011 CTZ002>004-MAZ002>024-026-NHZ011-012-015-RIZ001>008-230815- HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA- EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA- WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA- WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA- SOUTHERN WORCESTER 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-DUKES MA-NANTUCKET MA- NORTHERN MIDDLESEX MA-CHESHIRE NH-EASTERN HILLSBOROUGH NH- WESTERN AND CENTRAL HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-EASTERN KENT RI-BRISTOL RI- WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI- 410 AM EDT THU SEP 22 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT...CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS...NORTHEASTERN MASSACHUSETTS...SOUTHEASTERN MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE...NORTHERN RHODE ISLAND AND SOUTHERN RHODE ISLAND. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. LOCALLY HEAVY RAINFALL IS POSSIBLE FRIDAY INTO SATURDAY. A SECOND PERIOD OF LOCALLY HEAVY RAINFALL IS POSSIBLE BETWEEN LATE SUNDAY NIGHT AND TUESDAY. FLOODING OF POOR DRAINAGE AND URBAN AREAS WILL BE POSSIBLE...ALONG WITH SHARP RISES IN SMALL RIVERS AND STREAMS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. ANZ230>237-250-251-254>256-230815- 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- 410 AM EDT THU SEP 22 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS COASTAL WATERS AND RHODE ISLAND COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
Nearby
Flood Watches in Massachusetts, 2011Flood Watches in Rhode Island, 2011Flood Watches in Connecticut, 2011Every flood watch in 2011
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.