Alert archive / Massachusetts / Flash Flood Watches in 2006
Flash Flood Watch 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood watch at Jul 12, 2006, 4:09 AM EDT for 4 states. It took effect at Jul 12, 2006, 3:00 PM EDT. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2006, 4:09 AM EDT (08:09 UTC)
- In effect from
- Jul 12, 2006, 3:00 PM EDT
- Expired
- Jul 13, 2006, 3:32 AM EDT
- In force
- 13 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, Cheshire County, NH, Hillsborough County, NH, Kent County, RI, Providence County, RI
The radar
The Boston radar (KBOX), 59 km from the middle of the area, began a volume at 08:09 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 00:00Z, 8.2 hours before the alert went out and 159 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
- 543 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1057 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS61 KBOX 120809 FFABOX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 409 AM EDT WED JUL 12 2006 ...THUNDERSTORMS MAY PRODUCE AREAS OF TORRENTIAL RAINFALL THIS AFTERNOON AND TONIGHT BRINGING THE POTENTIAL FOR LOCALIZED FLASH FLOODING... CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>004-121630- /O.NEW.KBOX.FF.A.0003.060712T1900Z-060713T1100Z/ /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 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK 409 AM EDT WED JUL 12 2006 ...FLASH FLOOD WATCH IN EFFECT FROM 3 PM EDT THIS AFTERNOON THROUGH THURSDAY MORNING... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT... CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS...NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND AND NORTHERN RHODE ISLAND...INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT...HARTFORD CT...TOLLAND CT AND WINDHAM CT 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 NORTHEAST MASSACHUSETTS...EASTERN ESSEX MA AND WESTERN ESSEX MA IN SOUTHEAST MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA AND WESTERN PLYMOUTH MA 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...EASTERN HILLSBOROUGH NH AND WESTERN AND CENTRAL HILLSBOROUGH NH IN CENTRAL RHODE ISLAND...EASTERN KENT RI AND WESTERN KENT RI IN NORTHERN RHODE ISLAND...NORTHWEST PROVIDENCE RI AND SOUTHEAST PROVIDENCE RI. * FROM 3 PM EDT THIS AFTERNOON THROUGH THURSDAY MORNING * NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS SOUTHWEST NEW HAMPSHIRE...WESTERN MASSACHUSETTS AND CONNECTICUT THIS AFTERNOON. THIS ACTIVITY IS EXPECTED TO REACH THE COASTAL PLAIN BY LATE AFTERNOON OR EARLY EVENING. THE AIRMASS HAS SO MUCH AVAILABLE MOISTURE THAT ANY THUNDERSTORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL AND THE POTENTIAL FOR FLASH FLOODING. * RAINFALL AMOUNTS ARE EXPECTED TO AVERAGE BETWEEN 1 AND 2 INCHES ACROSS THE REGION THIS AFTERNOON AND TONIGHT. HOWEVER...WHERE LOCALLY HEAVY THUNDERSTORMS DEVELOP ISOLATED LOCATIONS MAY RECEIVE 4 TO 6 INCHES OF RAIN IN JUST 2 HOURS THIS WILL BRING THE POTENTIAL FOR LOCALIZED FLASH FLOODING PARTICULARLY IN URBANIZED AREAS. * IF YOU OBSERVE FLASH FLOODING THIS AFTERNOON OR TONIGHT...DO NOT ATTEMPT TO DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. 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
000 WGUS61 KBOX 121708 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 108 PM EDT WED JUL 12 2006 ...THUNDERSTORMS MAY PRODUCE AREAS OF TORRENTIAL RAINFALL THIS AFTERNOON AND TONIGHT BRINGING THE POTENTIAL FOR LOCALIZED FLASH FLOODING... CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>004-130115- /O.CON.KBOX.FF.A.0003.060712T1900Z-060713T1100Z/ /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 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK 108 PM EDT WED JUL 12 2006 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...CENTRAL MASSACHUSETTS... EASTERN MASSACHUSETTS...NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND AND NORTHERN RHODE ISLAND... INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT... HARTFORD CT...TOLLAND CT AND WINDHAM CT 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 NORTHEAST MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA IN SOUTHEAST MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA AND WESTERN PLYMOUTH MA 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...EASTERN HILLSBOROUGH NH AND WESTERN AND CENTRAL HILLSBOROUGH NH IN CENTRAL RHODE ISLAND...EASTERN KENT RI AND WESTERN KENT RI IN NORTHERN RHODE ISLAND...NORTHWEST PROVIDENCE RI AND SOUTHEAST PROVIDENCE RI. * THROUGH THURSDAY MORNING * NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE TO CROSS OVER SOUTHWEST NEW HAMPSHIRE...MASSACHUSETTS...AND NORTHERN CONNECTICUT THIS AFTERNOON. ANY THUNDERSTORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL AND THE POTENTIAL FOR FLASH FLOODING. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT. * RAINFALL AMOUNTS ARE EXPECTED TO AVERAGE BETWEEN 1 AND 2 INCHES ACROSS THE REGION THIS AFTERNOON AND TONIGHT. HOWEVER... WHERE LOCALLY HEAVY THUNDERSTORMS DEVELOP ISOLATED LOCATIONS MAY RECEIVE 4 TO 6 INCHES OF RAIN IN JUST 2 HOURS THIS WILL BRING THE POTENTIAL FOR LOCALIZED FLASH FLOODING PARTICULARLY IN URBANIZED AREAS. 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. $$ NBELK
000 WGUS61 KBOX 122057 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 457 PM EDT WED JUL 12 2006 ...THUNDERSTORMS MAY PRODUCE AREAS OF TORRENTIAL RAINFALL THIS AFTERNOON AND TONIGHT BRINGING THE POTENTIAL FOR LOCALIZED FLASH FLOODING... CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>004-130500- /O.CON.KBOX.FF.A.0003.000000T0000Z-060713T1100Z/ /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 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK 457 PM EDT WED JUL 12 2006 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...CENTRAL MASSACHUSETTS... EASTERN MASSACHUSETTS...NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND AND NORTHERN RHODE ISLAND... INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT... HARTFORD CT...TOLLAND CT AND WINDHAM CT 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 NORTHEAST MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA IN SOUTHEAST MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA AND WESTERN PLYMOUTH MA 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...EASTERN HILLSBOROUGH NH AND WESTERN AND CENTRAL HILLSBOROUGH NH IN CENTRAL RHODE ISLAND...EASTERN KENT RI AND WESTERN KENT RI IN NORTHERN RHODE ISLAND...NORTHWEST PROVIDENCE RI AND SOUTHEAST PROVIDENCE RI. * THROUGH THURSDAY MORNING * SHOWERS AND THUNDERSTORMS WILL CONTINUE TO CROSS OVER SOUTHWEST NEW HAMPSHIRE...MASSACHUSETTS...RHODE ISLAND...AND NORTHERN CONNECTICUT. MEANWHILE THE AIRMASS REMAINS VERY HUMID. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT. * RAINFALL FROM SHOWERS AND THUNDERSTORMS IS EXPECTED TO AVERAGE BETWEEN 1 AND 2 INCHES. HOWEVER...LOCALLY HEAVY DOWNPOURS MAY BRING ISOLATED 4 TO 6 INCH AMOUNTS. THIS WILL BRING THE POTENTIAL FOR LOCALIZED FLASH FLOODING PARTICULARLY IN URBANIZED AREAS. 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
000 WGUS61 KBOX 130150 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 950 PM EDT WED JUL 12 2006 ...SHOWERS AND THUNDERSTORMS WITH HEAVY RAINFALL MAY CAUSED LOCALIZED FLASH FLOODING INTO EARLY THURSDAY... CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>004-131000- /O.CON.KBOX.FF.A.0003.000000T0000Z-060713T1100Z/ /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 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK 950 PM EDT WED JUL 12 2006 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM EDT THURSDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN CONNECTICUT...CENTRAL MASSACHUSETTS... EASTERN MASSACHUSETTS...NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND AND NORTHERN RHODE ISLAND... INCLUDING THE FOLLOWING AREAS...IN NORTHERN CONNECTICUT... HARTFORD CT...TOLLAND CT AND WINDHAM CT 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 NORTHEAST MASSACHUSETTS... EASTERN ESSEX MA AND WESTERN ESSEX MA IN SOUTHEAST MASSACHUSETTS...EASTERN PLYMOUTH MA...NORTHERN BRISTOL MA AND WESTERN PLYMOUTH MA 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...EASTERN HILLSBOROUGH NH AND WESTERN AND CENTRAL HILLSBOROUGH NH IN CENTRAL RHODE ISLAND...EASTERN KENT RI AND WESTERN KENT RI IN NORTHERN RHODE ISLAND...NORTHWEST PROVIDENCE RI AND SOUTHEAST PROVIDENCE RI. * UNTIL 7 AM EDT THURSDAY * SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH MUCH OF SOUTHERN NEW ENGLAND OVERNIGHT AND EARLY THURSDAY MORNING. RAINFALL WILL BE LOCALLY HEAVY AS WARM AND HUMID AIR REMAINS IN PLACE. * RAINFALL WILL AVERAGE BETWEEN 1 AND 2 INCHES OVER MOST OF THE REGION. THERE IS THE POTENTIAL FOR ISOLATED TOTALS AS HIGH AS 4 INCHES...WHICH WOULD LEAD TO THE POSSIBILITY OF LOCALIZED FLASH FLOODING OR SIGNIFICANT FLOODING OF URBAN AREAS. 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. NEVER ATTEMPT TO DRIVE THROUGH FLOODED AREAS. $$ JWD
000 WGUS61 KBOX 130732 FFABOX FLOOD WATCH NATIONAL WEATHER SERVICE TAUNTON MA 331 AM EDT THU JUL 13 2006 CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>004-130845- /O.CAN.KBOX.FF.A.0003.000000T0000Z-060713T1100Z/ /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 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK 331 AM EDT THU JUL 13 2006 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN CONNECTICUT... CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS...NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS... SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND AND NORTHERN RHODE ISLAND HAS BEEN CANCELLED. SCATTERED SHOWERS AND EVEN A FEW EMBEDDED THUNDERSTORMS WILL PERSIST THROUGH THIS MORNING ACROSS MUCH OF SOUTHERN NEW ENGLAND. HOWEVER...THE RISK OF HEAVY ENOUGH RAIN TO PRODUCE FLASH FLOODING HAS DIMINISHED. $$ THOMPSON
What forecasters said that day
The local office's own words before this flash 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 flash flood watch went out at Jul 11, 7:50 PM EDT, 8 hours 19 minutes earlier.
Area forecast discussion, Jul 11, 7:50 PM EDT, 8 hours 19 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TAUNTON MA
750 PM EDT TUE JUL 11 2006
.MESOSCALE UPDATE...
WW 591 WILL EXPIRE AT 8 PM EDT.
INSTABILITY AXIS HAS SHIFTED A BIT FARTHER E INTO NE CT...NW RI...
AND S CENTRAL/EASTERN MA. WE ARE NOW FIGHTING LOSS OF DAYTIME
HEATING AND HAVE LOST GOOD SUPPORT FROM UPPER COLD POOL WHICH IS
HEADING OFFSHORE. THEREFORE WE DO NOT EXPECT TO SEE ANY RENEWED
THUNDERSTORM ACTIVITY TONIGHT.
WE CONTINUE TO WATCH AN ISOLATED SEVERE STORM IN NE TOLLAND COUNTY
CT...WITH SOME ADDITIONAL SHOWERS/STORMS BACK INTO EXTREME NORTHERN
HARTFORD AND SOUTHERN HAMPDEN COUNTIES. WHILE THESE STORMS MAY
BRIEFLY PULSE UP AND DOWN...WE DO NOT EXPECT ANYTHING MORE THAN
ISOLATED SEVERE IN NEXT HOUR OR TWO BEFORE ACTIVITY DIMINISHES
FURTHER. INSTABILITY AXIS MAY HELP THINGS ALONG FOR AWHILE LONGER.
WE ARE ALSO CONCERNED MORE ABOUT HEAVY RAIN POTENTIAL GIVEN HIGH LOW
LEVEL MOISTURE IN PLACE...BUT THAT THREAT SHOULD SLOWLY DIMINISH AS
WELL IN NEXT 2 HOURS.
FORECASTS WILL BE UPDATED TO REMOVE HEADLINES ONCE WW 591 EXPIRES.
WE WILL HIT FOG A LITTLE HARDER NEAR S COAST...BUT ALSO WHERE RAIN
FELL TODAY AS LIGHT WINDS PROMOTE MORE FOG DEVELOPMENT.
JWD
&&
.PREVIOUS DISCUSSION...
/ISSUED 618 PM EDT TUE JUL 11 2006/
MESOSCALE UPDATE...
WW 591 HAS BEEN CANCELLED FOR NW ZONES NOW THAT ACTIVITY HAS MOVED E
OF AREA...AS WELL AS S COASTAL ZONES WHICH ARE TOO STABLE TO SUPPORT
SEVERE WEATHER IN NEXT 2 HOURS. WW 591 CONTINUES ELSEWHERE UNTIL 8
PM EDT INCLUDING HARTFORD...SPRINGFIELD...WORCESTER...PROVIDENCE AND
BOSTON.
LATEST MESOANALYSIS CONTINUES TO SHOW INSTABILITY AXIS FROM N
CENTRAL CT INTO CENTRAL AND EASTERN MA...STILL FROM ABOUT MERIDEN TO
WORCESTER AND BOSTON. MORE ACTIVITY HAS DEVELOPED ALONG LINE OF
CLOUDS OVER HAMPDEN COUNTY MA...AND THIS WILL SHIFT INTO N CT AND
CENTRAL MA IN NEXT 2 HOURS...THOUGH IT SHOULD SLOWLY WEAKEN GIVEN
LOSS OF DAYTIME HEATING. UPPER COLD POOL IS ALSO SHIFTING INTO E MA
WHICH WILL LIMIT COVERAGE OF ACTIVITY.
OTHER ACTIVITY HAS ALSO DEVELOPED OVER NE MA...POSSIBLY FROM OUTFLOW
FROM EARLIER STORMS. THIS WILL ALSO GRADUALLY WEAKEN AS IT HEADS
OFFSHORE.
FOCUS WILL NOW SHIFT FROM A WIDESPREAD SEVERE THREAT TO MORE OF A
FLASH FLOOD/ISOLATED SEVERE THREAT THIS EVENING. WE DO NOT EXPECT TO
EXTEND WW 591 PAST 8 PM EDT.
JWD
PREVIOUS DISCUSSION...
/ISSUED 520 PM EDT TUE JUL 11 2006/
MESOSCALE UPDATE...
WW 591 CONTINUES IN EFFECT UNTIL 8 PM EDT.
LATEST ANALYSIS SHOWS INSTABILITY AXIS RUNNING FROM CT INTO CENTRAL
AND EASTERN MA...ROUGHLY FROM MERIDEN TO WORCESTER AND BOSTON.
ACTIVITY HAS BEEN FOCUSED IN CENTRAL AND NE MA DURING PAST HOUR...
BUT WE ARE ALSO WATCHING LINE OF CUMULUS CLOUDS ON SATELLITE
DROPPING THROUGH WESTERN MA TOWARD NORTHERN CT FOR SOME ADDITIONAL
DEVELOPMENT IN NEXT 1 TO 2 HOURS. IT WILL START TO FIGHT LOSS OF
DAYTIME HEATING...AND FACT THAT UPPER COLD POOL IS BEGINNING TO
SHIFT INTO EASTERN MA AND RI AT THIS TIME.
WE MAY TRIM BACK WW 591 ACROSS OUR FAR WESTERN ZONES IN NEXT HOUR
PENDING RADAR TRENDS...AS WELL AS S COASTAL RI/MA WHERE AIRMASS
LOOKS TO BE TOO STABLE TO SUPPORT SEVERE THUNDERSTORMS.
ACTIVITY THIS AFTERNOON HAS BEEN ONE OF THE MORE PROLIFIC HAIL
PRODUCERS IN SOUTHERN NEW ENGLAND IN PAST FEW YEARS...WE HAVE HAD
MANY...MANY REPORTS OF NICKEL TO QUARTER SIZED HAIL THROUGHOUT
NORTHERN CT...CENTRAL AND NE MA /SEE LOCAL STORM REPORT FOR A
COMPREHENSIVE LISTING/. LARGEST HAIL REPORTED WAS 3 INCHES IN
DIAMETER /JUST OVER BASEBALL SIZE/ IN MARBLEHEAD MA. SKYWARN
SPOTTERS ALSO REPORTED A FUNNEL CLOUD NEAR TOPSFIELD MA JUST BEFORE
3 PM...WHICH PROMPTED ISSUANCE OF A TORNADO WARNING FOR THAT STORM.
SO FAR WE HAVE NOT RECEIVED ANY CONFIRMATION OF A TOUCHDOWN. ANOTHER
STORM PRODUCED A WATERSPOUT OFF COAST OF IPSWICH MA...AS SEEN BY A
SKYWARN SPOTTER.
JWD
SHORT TERM /TONIGHT THROUGH WEDNESDAY/...
SEVERE THUNDERSTORM WATCH CONTINUES. NUMEROUS REPORTS FROM THE
AFTERNOON CONVECTION. A WEAKENING COLD FRONT OVER VT/NY SUPPORTED BY
THE PASSAGE OF AN UPPER TROF AND COLD POOL. WITH THE TROF MOVING EAST
OF US THIS EVENING AND WITH WARMING ALOFT...THE CONVECTION SHOULD
DIMINISH. WE WILL CONTINUE CATEGORICAL POPS THRU THE EVENING AND THEN
DIMINISH TO NIL EARLY TONIGHT. PLENTY OF LOW LEVEL MOISTURE WITH DEW
POINTS IN THE UPPER 60S AND AROUND 70...AND WITH LIGHT FLOW MOST
SPOTS THAT SHOULD SUPPORT AREAS OF FOG/STRATUS OVERNIGHT.
THE FRONT STALLS OVER SOUTHERN NEW ENGLAND TONIGHT...AND MAY WIGGLE A
LITTLE OVER NORTHERN MASS/SRN NH DURING WEDNESDAY. MEANWHILE A LOW
PRESSURE WAVE MOVES UP THE FRONT SPREADING SHOWERS INTO AREAS SOUTH
OF THE FRONT AND POSSIBLY STEADY RAIN NORTH OF THE FRONT.
PRECIPITABLE WATER VALUES ARE FORECAST IN THE 2 TO 2.25 INCH
RANGE...SO LOCALLY HEAVY DOWNPOURS ARE POSSIBLE IN ANY SHOWERS/TSTMS.
LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
MODEL GUIDANCE IN FAIRLY GOOD AGREEMENT REGARDING THE TIMING
OF A SHORTWAVE DISTURBANCE CROSSING THE REGION WEDNESDAY NIGHT
AND THURSDAY MORNING. THE NAM IS A BIT LESS PROGRESSIVE THAN THE
GFS/UKMET OR CANADIAN GEM. THE UPPER LEVEL FLOW REMAINS
PROGRESSIVE AND THUS HAVE FAVORED THE SLIGHTLY FASTER GFS/UKMET
AND CANADIAN GEM SOLUTIONS AT THIS TIME.
FAVORABLE LIFTING MECHANISMS WILL INCLUDE A DEVELOPING SOUTHWESTERLY
LOW LEVEL JET AND SOUTHWEST TO WEST MID LEVEL JETS FROM 850-700 MB.
PRECIPITABLE WATER VALUES INCREASE TO 2.3 G/KG WITH THETA-E ADVECTION
AT 850 MB. SHOWERS AND THUNDERSTORMS WILL BRING LOCALLY HEAVY
RAINFALL WITH FLASH FLOODING A POSSIBILITY. K INDICES RISE INTO THE
MID TO UPPER 30S WITH SHOWALTER INDICES BELOW ZERO. RAIN WILL BE
HEAVY AT TIMES WITH LOCALIZED URBAN AND POOR DRAINAGE FLOODING
EXPECTED. FLASH FLOOD GUIDANCE VALUES AND HEADWATER GUIDANCE VALUES
ARE RATHER HIGH. ESFBOX HAS BEEN UPDATED TO REFLECT THE FLOOD
POTENTIAL. LATER SHIFTS MAY NEED TO RE-ASSESS THE FLOOD POTENTIAL
GIVEN TODAYS THUNDERSTORM ACTIVITY.
THE SHORT WAVE TRACKS OFFSHORE THURSDAY WITH LINGERING SHOWERS
ESPECIALLY IN THE MORNING. THURSDAY LOOKS TO BE A TRANSITION DAY
WITH DRIER AIR GRADUALLY INFILTRATING THE REGION FROM THE NORTH.
HIGH PRESSURE BUILDS FOR FRIDAY AND THE WEEKEND AS THE UPPER LEVEL
RIDGE BEGINS TO CREST ACROSS THE NORTHEAST. H592 DECAMETER RIDGE
AND H85 TEMPS FROM +17 TO +19C SHOULD YIELD HIGHS IN THE LOWER 90S
ACROSS THE INTERIOR VALLEYS. THERE IS STILL SOME QUESTION AS TO
THE AMOUNT OF SUBSIDENCE AND WIND TRAJECTORY ASSOCIATED WITH THE
BUILDING HIGH THIS WEEKEND. THEREFORE PLAYED THE CONSERVATIVE ROUTE
AND KEPT MAXIMUM TEMPERATURES A FEW DEGREES ABOVE THE 00Z MEX
GUIDANCE. NOTED THE 12Z MEX GUIDANCE HAS TRENDED WARMER THIS
WEEKEND.
MID RANGE ENSEMBLES IN FAIRLY GOOD AGREEMENT THAT THE UPPER
LEVEL RIDGE BEGINS TO BREAK DOWN BY MONDAY OR TUESDAY OF NEXT
WEEK. INSERTED A CHANCE OF SHOWERS AND THUNDERSTORMS AHEAD OF A
COLD FRONT ON TUESDAY.
SPENT A PORTION OF THE SHIFT ASSISTING THE SHORT TERM IN MONITORING
CONVECTION TODAY.
AVIATION...
TSTMS THROUGH THIS EVENING WILL BRING PERIODS OF MVFR OR IFR. VFR
CONDITIONS TONIGHT WILL GIVE WAY TO DEVELOPING FOG/STRATUS ESPECIALLY
FOR ACK, HYA, AND PVD. THESE CONDITIONS WILL IMPROVE TO VFR AFTER 12Z
WEDNESDAY. ANOTHER AREA OF SHOWERS/TSTMS WILL APPROACH FOR THE
AFTERNOON...SO THE UPCOMING 18Z-24Z PERIOD WEDNESDAY WILL LIKELY
FEATURE CONDITIONS DETERIORATING TO MVFR/IFR.
MARINE...
5 FOOT SEAS BUILDING ON THE SOUTHERN OUTER WATERS...WILL GO WITH A
SMALL CRAFT ADVISORY FOR SEAS FOR TONIGHT AND WEDNESDAY.
A SMALL CRAFT ADVISORY FOR SOUTHWESTERLY SWELL WILL LIKELY NEED TO
BE EXTENDED INTO WEDNESDAY NIGHT. UNDERCUT WNA SEAS SLIGHTLY DUE TO
LOW LEVEL INVERSION.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...NONE.
MA...NONE.
NH...NONE.
RI...NONE.
MARINE...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FOR ANZ254-255 FROM 11
PM TUESDAY TO 8 PM WEDNESDAY.
&&
SHORT TERM...JWDHazardous weather outlook, Jul 11, 6:17 AM EDT, 21 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAUNTON MA 617 AM EDT TUE JUL 11 2006 ANZ230>237-250-254-255-CTZ002>004-MAZ002>024-026-NHZ011-012-015- RIZ001>008-121017- BARNSTABLE-BLOCK ISLAND-BLOCK ISLAND SOUND-BOSTON HARBOR-BRISTOL- BUZZARDS BAY-CAPE COD BAY-CENTRAL MIDDLESEX COUNTY-CHESHIRE- COASTAL WATERS FROM MERRIMACK RIVER MA OUT 25 NM TO PLYMOUTH MA OUT 40 NM- COASTAL WATERS FROM NANTUCKET MA TO MARTHAS VINEYARD MA TO BLOCK ISLAND RI TO MONTAUK NY SOUTHEAST TO 20NM- COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA OUT 20 NM-DUKES-EASTERN ESSEX-EASTERN FRANKLIN-EASTERN HAMPDEN- EASTERN HAMPSHIRE-EASTERN HILLSBOROUGH-EASTERN KENT-EASTERN NORFOLK- EASTERN PLYMOUTH-HARTFORD-NANTUCKET-NANTUCKET SOUND-NARRAGANSETT BAY- NEWPORT-NORTHERN BRISTOL-NORTHERN WORCESTER- NORTHWEST MIDDLESEX COUNTY-NORTHWEST PROVIDENCE-RHODE ISLAND SOUND- SOUTHEAST MIDDLESEX-SOUTHEAST PROVIDENCE-SOUTHERN BRISTOL- SOUTHERN PLYMOUTH-SOUTHERN WORCESTER-SUFFOLK-TOLLAND-VINEYARD SOUND- WASHINGTON-WESTERN AND CENTRAL HILLSBOROUGH-WESTERN ESSEX- WESTERN FRANKLIN-WESTERN HAMPDEN-WESTERN HAMPSHIRE-WESTERN KENT- WESTERN NORFOLK-WESTERN PLYMOUTH-WINDHAM- 617 AM EDT TUE JUL 11 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN CONNECTICUT...CENTRAL MASSACHUSETTS...EASTERN MASSACHUSETTS... NORTHEAST MASSACHUSETTS...SOUTHEAST MASSACHUSETTS...WESTERN MASSACHUSETTS...MASSACHUSETTS COASTAL WATERS...SOUTHERN NEW HAMPSHIRE...CENTRAL RHODE ISLAND...NORTHERN RHODE ISLAND... SOUTHERN RHODE ISLAND AND RHODE ISLAND COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT AN INITIAL BAND OF SHOWERS AND STRONG THUNDERSTORMS AT 6 AM WAS ALREADY ENTERING EXTREME WESTERN NEW ENGLAND. THIS ACTIVITY WILL MOVE INTO SOUTHERN NEW HAMPSHIRE AND MUCH OF WESTERN MASSACHUSETTS EARLY THIS MORNING. ALTHOUGH THESE THUNDERSTORMS ARE NOT SEVERE THEY CONTAIN DANGEROUS CLOUD TO GROUND LIGHTNING. AWAY FROM THIS INITIAL BAND OF THUNDERSTORMS...THERE WILL BE PARTIAL SUNSHINE TODAY. THIS SHOULD ALLOW TEMPERATURES TO CLIMB INTO THE 80S AND RESULT IN A MODERATELY UNSTABLE AIRMASS. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP LATER THIS MORNING AND INTO THE AFTERNOON. SOME OF THESE STORMS COULD POTENTIALLY BECOME SEVERE...PRODUCING DAMAGING STRAIGHT LINE WIND GUSTS AND LARGE HAIL. IN ADDITION...ANY THUNDERSTORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING DANGEROUS CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE INTERIOR WEDNESDAY AFTERNOON AND REACH THE COAST BY EARLY EVENING. THERE IS POTENTIAL FOR SEVERE WEATHER IF WE CAN GET ENOUGH SUNSHINE. THE PRIMARY THREATS WILL BE DAMAGING STRAIGHT LINE WIND GUSTS AND POSSIBLY LARGE HAIL. THERE IS EVEN A CHANCE FOR A FEW SUPERCELL THUNDERSTORMS. SEVERE WEATHER POTENTIAL ON WEDNESDAY WILL DEPEND ON JUST HOW MUCH SUNSHINE WE GET AND WE WILL KNOW MORE LATER THIS AFTERNOON. IN ADDITION...ANY THUNDERSTORM THAT DEVELOPS ON WEDNESDAY WILL BE CAPABLE OF PRODUCING TORRENTIAL RAINFALL. THIS MAY RESULT IN SOME URBAN FLASH FLOODING. SHOWERS AND STRONG THUNDERSTORMS WILL CONTINUE INTO WEDNESDAY NIGHT. TOTAL RAINFALL FROM NOON WEDNESDAY TO DAYBREAK THURSDAY IS LIKELY TO AVERAGE 1 TO 2 INCHES IN SOUTHERN NEW ENGLAND WITH ISOLATED 4.5 INCH AMOUNTS. TRAVEL IS LIKELY TO BE IMPACTED IN PORTIONS OF SOUTHERN NEW ENGLAND BY THE HEAVY RAINS LATE WEDNESDAY. HEAT WAVE /3 CONSECUTIVE DAYS OF 90 DEGREES OR ABOVE/ TEMPERATURES OF 90 TO 95 DEGREES ARE ANTICIPATED FOR THE CONNECTICUT RIVER VALLEY THIS WEEKEND THROUGH MONDAY BUT THE HUMIDITY SHOULD NOT BE EXCESSIVE THIS WEEKEND. THERE IS STILL A CHANCE THAT THE 90 DEGREE HEAT WILL BEGIN AS EARLY FRIDAY AFTERNOON IN THE HARTFORD SPRINGFIELD AREA. THIS DEVELOPING PATTERN MAY ALLOW FOR HEAT ADVISORY CRITERIA SUNDAY OR MORE LIKELY MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED LATE THIS MORNING INTO THE AFTERNOON FOR ISOLATED TO SCATTERED SEVERE THUNDERSTORMS. SPOTTER ACTIVATION MAY BE NEEDED AGAIN ON WEDNESDAY AFTERNOON AND NIGHT FOR THE POTENTIAL FOR SEVERE THUNDERSTORMS AND URBAN FLASH FLOODING. FRANK/DRAG
In the hours before
Special weather statement, Jul 12, 3:41 AM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 341 AM EDT WED JUL 12 2006 CTZ002>004-MAZ002>019-026-NHZ011-012-015-RIZ001>005-121630- 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-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- INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION... VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD... ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE... GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON... SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD... CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH... AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH... WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH... WARWICK...BRISTOL 341 AM EDT WED JUL 12 2006 ...SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING PARTICULARLY ACROSS THE INTERIOR... EARLY THIS MORNING...A COMPLEX OF SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ACROSS PORTIONS OF NEW YORK STATE AND PENNSYLVANIA. THIS ACTIVITY MAY JUST GRAZE PORTIONS OF CONNECTICUT...WESTERN MASSACHUSETTS...AS WELL AS SOUTHWEST MASSACHUSETTS THIS MORNING. HOWEVER...THE MAIN ACTION LOOKS TO TAKE PLACE THIS AFTERNOON AND INTO THIS EVENING. ALTHOUGH WE WILL BE DEALING WITH A FAIR AMOUNT OF CLOUDINESS...WE STILL EXPECT THE SUN TO BE OUT AT TIMES PARTICULARLY IN THE MORNING. THIS SHOULD ALLOW TEMPERATURES TO WARM INTO THE LOW TO MID 80S. THIS WILL COMBINE WITH DEWPOINTS IN THE LOWER 70S TO CREATE AN UNSTABLE ATMOSPHERE. NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS SOUTHWEST NEW HAMPSHIRE...WESTERN MASSACHUSETTS AND CONNECTICUT AFTER 2 PM. SOME OF THESE STORMS MAY BECOME SEVERE AND PRODUCE DAMAGING STRAIGHT LINE WIND GUSTS AND LARGE HAIL. IN ADDITION...THERE WILL BE A SMALL WINDOW OF OPPORTUNITY LATE IN THE AFTERNOON AND EARLY EVENING WHERE WINDS ALOFT AND INSTABILITY PARAMETERS MAY SUPPORT A SUPERCELL THUNDERSTORM OR TWO. IF A SUPERCELL THUNDERSTORM IS ABLE TO DEVELOP IT MAY BRING HAIL TO THE SIZE OF GOLFBALLS AND EVEN A TORNADO. THE BEST CHANCE FOR THIS WILL BE ACROSS SOUTHWEST NEW HAMPSHIRE...WESTERN MASSACHUSETTS AND CONNECTICUT. ANY THUNDERSTORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING DANGEROUS CLOUD TO GROUND LIGHTNING AND TORRENTIAL RAINFALL. THE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO OVERSPREAD THE COASTAL PLAIN LATE IN THE AFTERNOON OR EARLY EVENING. ALTHOUGH THE RISK OF SEVERE WEATHER IS HIGHER ACROSS THE INTERIOR...INSTABILITY MAY STILL BRING THE RISK FOR A FEW DAMAGING STRAIGHT LINE WIND GUSTS. THE AMOUNT OF SUN WE SEE TODAY WILL BE VERY IMPORTANT IN ASSESSING SEVERE WEATHER POTENTIAL THIS AFTERNOON AND EVENING. THIS STILL REMAINS UNCERTAIN SO STAY TUNED FOR LATER FORECASTS AND UPDATES. SPOTTER ACTIVATION WILL LIKELY BE NEEDED TODAY FROM 2 PM UNTIL 10 PM FOR THE POTENTIAL OF SEVERE THUNDERSTORMS. FRANK
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:45 PM EDT | Special Marine Warning | BOX | 90 min | |
| Jul 12, 3:19 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire, Worcester | 39 days |
| Jul 12, 3:40 PM EDT | Special Marine Warning | BOX | 95 min |
Nearby
Flash Flood Watches in Massachusetts, 2006Flash Flood Watches in Connecticut, 2006Flash Flood Watches in Rhode Island, 2006Every flash flood watch in 2006
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.