Alert archive / Massachusetts / Flash Flood Watches in 2012
Flash Flood Watch 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood watch at Jul 28, 2012, 3:54 AM EDT for 5 counties in Massachusetts; Capitol Planning Region, Connecticut; Cheshire County, Hillsborough County, New Hampshire. It took effect at Jul 28, 2012, 12:00 PM EDT. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Jul 28, 2012, 3:54 AM EDT (07:54 UTC)
- In effect from
- Jul 28, 2012, 12:00 PM EDT
- Expired
- Jul 29, 2012, 4:01 AM EDT
- In force
- 16 hr
- Issued by
- NWS Boston/Norton, MA
- Flood severity
- None
Counties Capitol Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH
The radar
The Boston radar (KBOX), 104 km from the middle of the area, began a volume at 07:56 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
Albany, NY (KALY), launched 00:00Z, 7.9 hours before the alert went out and 135 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
- 29 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 999 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
710 WGUS61 KBOX 280754 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 354 AM EDT SAT JUL 28 2012 ...LOCALIZED FLASH FLOODING POSSIBLE THIS AFTERNOON INTO TONIGHT... CTZ002-MAZ002-003-008>011-NHZ011-281600- /O.NEW.KBOX.FF.A.0002.120728T1600Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-CHESHIRE NH- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...CHARLEMONT... GREENFIELD...ORANGE...CHESTERFIELD...BLANDFORD...AMHERST... NORTHAMPTON...SPRINGFIELD...JAFFREY...KEENE 354 AM EDT SAT JUL 28 2012 ...FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT... WESTERN MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT. IN WESTERN MASSACHUSETTS...EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA... WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. IN SOUTHERN NEW HAMPSHIRE...CHESHIRE NH. * FROM NOON EDT TODAY THROUGH LATE TONIGHT * SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP BY MID AFTERNOON AND CONTINUE INTO TONIGHT. THE SHOWERS AND THUNDERSTORMS WILL BE VERY SLOW MOVING AND CAPABLE OF DROPPING 2 TO 4 INCHES OF RAIN IN A VERY SHORT PERIOD OF TIME. THIS MAY LEAD TO LOCALIZED FLASH FLOODING. WHILE THERE IS POTENTIAL ACROSS THE ENTIRE WATCH AREA...IT APPEARS THAT THE HIGHEST RISK IS ALONG THE EAST SLOPES OF THE BERKSHIRES. * THERE IS UNCERTAINTY AS TO EXACTLY HOW EVERYTHING WILL UNFOLD THIS AFTERNOON AND TONIGHT...BUT THE POTENTIAL IS THERE FOR LOCALIZED FLASH FLOODING SO STAY TUNED FOR LATER FORECASTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ FRANK
4 follow-up statements
061 WGUS61 KBOX 281428 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 1028 AM EDT SAT JUL 28 2012 ...LOCALIZED FLASH FLOODING POSSIBLE THIS AFTERNOON INTO TONIGHT... CTZ002-MAZ002-003-008>011-NHZ011-282230- /O.CON.KBOX.FF.A.0002.120728T1600Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-CHESHIRE NH- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...CHARLEMONT... GREENFIELD...ORANGE...CHESTERFIELD...BLANDFORD...AMHERST... NORTHAMPTON...SPRINGFIELD...JAFFREY...KEENE 1028 AM EDT SAT JUL 28 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...WESTERN MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT. IN WESTERN MASSACHUSETTS... EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. IN SOUTHERN NEW HAMPSHIRE...CHESHIRE NH. * THROUGH LATE TONIGHT * SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS SOUTHERN NEW ENGLAND THIS AFTERNOON AND MAY CONTINUE INTO TONIGHT. THE SHOWERS AND THUNDERSTORMS WILL BE VERY SLOW MOVING AND CAPABLE OF DROPPING 2 TO 4 INCHES OF RAIN IN A VERY SHORT PERIOD OF TIME. THIS MAY LEAD TO LOCALIZED FLASH FLOODING. * THE HIGHEST RISK IS ALONG THE EAST SLOPES OF THE BERKSHIRES...WITH A GENERAL RISK IN THE CONNECTICUT VALLEY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WTB
066 WGUS61 KBOX 281752 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 152 PM EDT SAT JUL 28 2012 ...LOCALIZED FLASH FLOODING POSSIBLE THIS AFTERNOON INTO TONIGHT... CTZ003-MAZ004-026-NHZ015-290200- /O.EXA.KBOX.FF.A.0002.000000T0000Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ TOLLAND CT-NORTHERN WORCESTER MA-NORTHERN MIDDLESEX MA- WESTERN AND CENTRAL HILLSBOROUGH NH- INCLUDING THE CITIES OF...UNION...VERNON...BARRE...FITCHBURG... AYER...PETERBOROUGH...WEARE 152 PM EDT SAT JUL 28 2012 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE PORTIONS OF NORTHERN CONNECTICUT...MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE... INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT... TOLLAND CT. IN MASSACHUSETTS...NORTHERN MIDDLESEX MA AND NORTHERN WORCESTER MA. IN SOUTHERN NEW HAMPSHIRE...WESTERN AND CENTRAL HILLSBOROUGH NH. * THROUGH LATE TONIGHT * SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS SOUTHERN NEW ENGLAND THIS AFTERNOON AND MAY CONTINUE INTO TONIGHT. THE SHOWERS AND THUNDERSTORMS WILL BE VERY SLOW MOVING AND CAPABLE OF DROPPING 2 TO 4 INCHES OF RAIN IN A VERY SHORT PERIOD OF TIME. THIS MAY LEAD TO LOCALIZED FLASH FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ CTZ002-MAZ002-003-008>011-NHZ011-290200- /O.CON.KBOX.FF.A.0002.000000T0000Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA- WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA- EASTERN HAMPDEN MA-CHESHIRE NH- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...CHARLEMONT... GREENFIELD...ORANGE...CHESTERFIELD...BLANDFORD...AMHERST... NORTHAMPTON...SPRINGFIELD...JAFFREY...KEENE 152 PM EDT SAT JUL 28 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...WESTERN MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT. IN WESTERN MASSACHUSETTS... EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. IN SOUTHERN NEW HAMPSHIRE...CHESHIRE NH. * THROUGH LATE TONIGHT * SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS SOUTHERN NEW ENGLAND THIS AFTERNOON AND MAY CONTINUE INTO TONIGHT. THE SHOWERS AND THUNDERSTORMS WILL BE VERY SLOW MOVING AND CAPABLE OF DROPPING 2 TO 4 INCHES OF RAIN IN A VERY SHORT PERIOD OF TIME. THIS MAY LEAD TO LOCALIZED FLASH FLOODING. * THE HIGHEST RISK IS ALONG THE EAST SLOPES OF THE BERKSHIRES AND IN THE CONNECTICUT VALLEY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ WTB
861 WGUS61 KBOX 290152 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 952 PM EDT SAT JUL 28 2012 ...LOCALIZED FLASH FLOODING POSSIBLE THIS AFTERNOON INTO TONIGHT... CTZ002-003-MAZ002>004-008>011-026-NHZ011-015-290800- /O.CON.KBOX.FF.A.0002.000000T0000Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA- NORTHERN WORCESTER MA-WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA- EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-NORTHERN MIDDLESEX MA- CHESHIRE NH-WESTERN AND CENTRAL HILLSBOROUGH NH- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...CHARLEMONT...GREENFIELD...ORANGE...BARRE...FITCHBURG... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... AYER...JAFFREY...KEENE...PETERBOROUGH...WEARE 952 PM EDT SAT JUL 28 2012 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT SUNDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT AND TOLLAND CT. IN MASSACHUSETTS... EASTERN FRANKLIN MA...EASTERN HAMPDEN MA...EASTERN HAMPSHIRE MA...NORTHERN MIDDLESEX MA...NORTHERN WORCESTER MA...WESTERN FRANKLIN MA...WESTERN HAMPDEN MA AND WESTERN HAMPSHIRE MA. IN SOUTHERN NEW HAMPSHIRE...CHESHIRE NH AND WESTERN AND CENTRAL HILLSBOROUGH NH. * UNTIL 4 AM EDT SUNDAY * SCATTERED SHOWERS AND THUNDERSTORMS ARE REDEVELOPING ACROSS CENTRAL UPSTATE NEW YORK INTO EASTERN PENNSYLVANIA AND MAY CONTINUE TO DO SO EASTWARD LATE TONIGHT INTO EARLY SUNDAY MORNING. THE POTENTIAL SLOW MOVING STORMS WILL BE CAPABLE OF PRODUCING RAINFALL AMOUNTS AROUND 2 INCHES IN A VERY SHORT PERIOD OF TIME UPON ALREADY VERY SATURATED GROUND. THIS MAY LEAD TO LOCALIZED FLASH FLOODING. * THE HIGHEST RISK IS ALONG THE EAST SLOPES OF THE BERKSHIRES AND IN THE CONNECTICUT VALLEY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ SIPPRELL
625 WGUS61 KBOX 290801 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 401 AM EDT SUN JUL 29 2012 CTZ002-003-MAZ002>004-008>011-026-NHZ011-015-290915- /O.CAN.KBOX.FF.A.0002.000000T0000Z-120729T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HARTFORD CT-TOLLAND CT-WESTERN FRANKLIN MA-EASTERN FRANKLIN MA- NORTHERN WORCESTER MA-WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA- EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-NORTHERN MIDDLESEX MA- CHESHIRE NH-WESTERN AND CENTRAL HILLSBOROUGH NH- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...CHARLEMONT...GREENFIELD...ORANGE...BARRE...FITCHBURG... CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD... AYER...JAFFREY...KEENE...PETERBOROUGH...WEARE 401 AM EDT SUN JUL 29 2012 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT... MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE HAS BEEN CANCELLED. ANY STORMS THAT OCCUR TODAY SHOULD BE ISOLATED. $$ RLG
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 11:50 AM EDT | Special Weather Statement | BOX | Hampden | 55 min |
| Jul 28, 12:50 PM EDT | Special Weather Statement | BOX | Worcester | 25 min |
| Jul 28, 12:59 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire, Worcester | 6 hr |
| Jul 28, 1:35 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 3 hr |
| Jul 28, 2:28 PM EDT | Areal Flood Advisory | BOX | Hampden, Hampshire, Worcester | 3 hr |
| Jul 28, 3:18 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire, Middlesex, Worcester | 3 hr |
| Jul 28, 3:33 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire, Worcester | 3 hr |
| Jul 28, 3:41 PM EDT | Special Weather Statement | BOX | Worcester | 49 min |
| Jul 28, 4:01 PM EDT | Flash Flood Warning | BOX | Hampden, Worcester | 2 hr |
| Jul 28, 4:13 PM EDT | Special Weather Statement | BOX | Norfolk | 62 min |
| Jul 28, 4:47 PM EDT | Areal Flood Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more | 3 hr |
| Jul 28, 6:42 PM EDT | Areal Flood Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 3 hr |
| Jul 28, 7:25 PM EDT | Areal Flood Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 3 hr |
| Jul 28, 7:31 PM EDT | Flash Flood Warning | BOX | Bristol | 59 min |
| Jul 28, 12:46 PM EDT | Special Weather Statement | BOX | 59 min | |
| Jul 28, 1:48 PM EDT | Flash Flood Warning | BOX | Capitol Planning Region | 117 min |
| Jul 28, 2:11 PM EDT | Special Weather Statement | BOX | 64 min | |
| Jul 28, 2:39 PM EDT | Special Weather Statement | BOX | 51 min | |
| Jul 28, 3:00 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 3 hr |
| Jul 28, 3:24 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 3 hr |
| Jul 28, 3:44 PM EDT | Flash Flood Warning | BOX | Capitol Planning Region | 2 hr |
Nearby
Flash Flood Watches in Massachusetts, 2012Flash Flood Watches in New Hampshire, 2012Flash Flood Watches in Connecticut, 2012Every flash 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.