Alert archive / Massachusetts / Flash Flood Warnings in 2013

Flash Flood Warning 22, NWS Boston/Norton, MA

July 1, 20134 counties in Massachusetts; Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Jul 1, 2013, 12:02 PM EDT for 4 counties in Massachusetts; Capitol Planning Region, Connecticut. It was in force for 3 hr. 8 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 1, 2013, 12:02 PM EDT (16:02 UTC)
Expired: Jul 1, 2013, 3:00 PM EDT
In force: 3 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

Counties Capitol Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 117 km from the middle of the area, began a volume at 16:04 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.

What was reported inside it

Time	Report	Where	Remark
Jul 1, 12:26 PM EDT	FLASH FLOOD	West Springfield, MA	ROUTE 20 JUST WEST OF ELM STREET UP TO 2 FEET OF WATER COVERING ROADWAY. MANHOLE COVERS POPPED OFF. ROUTE 20 NEAR OHIO AVE CLOSED DUE TO 2 FEET OF WATER COVERING ROADWAY. STREET IMPASSABLE.
Jul 1, 12:34 PM EDT	FLASH FLOOD	Springfield, MA	PORTIONS OF FEDERAL AND WORTHINGTON STREETS CLOSED DUE TO FLOODING.
Jul 1, 12:38 PM EDT	FLASH FLOOD	South Hadley, MA	ROUTE 202 AT ROUTE 33 UNDER ONE FOOT OF WATER. STREET FLOODED.
Jul 1, 12:39 PM EDT	FLASH FLOOD	Holyoke, MA	SARGEANT STREET IMPASSABLE AND CLOSED DUE TO FLOODING.
Jul 1, 12:40 PM EDT	FLASH FLOOD	Westfield, MA	EAST MOUNTAIN ROAD ON WESTFIELD-SOUTHWICK LINE CLOSED DUE TO FLOODING.
Jul 1, 12:48 PM EDT	FLASH FLOOD	Westfield, MA	SINKHOLE OPENED ON MEADOW STREET. MANHOLE COVERS POPPED OFF AT MEADOW AND EAST BARTLETT STREETS.
Jul 1, 12:53 PM EDT	FLASH FLOOD	Agawam, MA	ROUTE 187 AT NORTH WEST ROAD FLOODED AND IMPASSABLE.
Jul 1, 1:00 PM EDT	FLASH FLOOD	Westfield, MA	LOCKHOUSE ROAD AND ARCHER STREET UP TO 8 INCHES OF STREET FLOODING.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 4.0 hours before the alert went out and 121 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 232 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 484 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

499 
WGUS51 KBOX 011602
FFWBOX
CTC003-MAC011-013-015-027-011900-
/O.NEW.KBOX.FF.W.0022.130701T1602Z-130701T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1202 PM EDT MON JUL 1 2013

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN HARTFORD COUNTY IN NORTHERN CONNECTICUT...
  CENTRAL HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
  CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
  SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS...
  WESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...

* UNTIL 300 PM EDT

* AT 1158 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA.  FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
  SPRINGFIELD...CHICOPEE...AMHERST...EAST LONGMEADOW... 
  AGAWAM...WEST SPRINGFIELD... LONGMEADOW...WARE... 
  HARDWICK...SHUTESBURY...LEVERETT...PELHAM...LUDLOW... 
  WILBRAHAM...BELCHERTOWN... SUNDERLAND...WHATELY...SOUTHWICK... 
  SOUTH HADLEY...GRANBY... SUFFIELD...BARRE AND MONTAGUE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADWAYS AND OBEY
ROAD CLOSURES. THOSE LIVING ALONG STREAMS AND CREEKS SHOULD MOVE TO
HIGHER GROUND IMMEDIATELY TO PROTECT LIFE AND PROPERTY.
&&

LAT...LON 4255 7257 4243 7201 4203 7249 4203 7251
      4201 7251 4197 7256 4201 7290

$$

THOMPSON

2 follow-up statements

047 
WGUS71 KBOX 011653
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1253 PM EDT MON JUL 1 2013

CTC003-MAC011-013-015-027-011900-
/O.CON.KBOX.FF.W.0022.000000T0000Z-130701T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARTFORD CT-HAMPDEN MA-HAMPSHIRE MA-FRANKLIN MA-WORCESTER MA-
1253 PM EDT MON JUL 1 2013

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM EDT FOR
NORTHERN HARTFORD...CENTRAL HAMPDEN...CENTRAL HAMPSHIRE...
SOUTHEASTERN FRANKLIN AND WESTERN WORCESTER COUNTIES...

AT 1242 PM EDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS 
PRODUCING HEAVY RAIN IN HAMPDEN COUNTY...INCLUDING 
SPRINGFIELD...WEST SPRINGFIELD...SOUTH HADLEY AND HOLYOKE. THE FLASH 
FLOODING IN HOLYOKE AND SOUTH HADLEY WILL LIKELY WORSEN UNTIL THE 
RAIN BEGINS TO LIGHTEN AFTER ABOUT 115 PM OR 130 PM. 

AREAS OF FLASH FLOODING ALSO APPEAR LIKELY FOR PORTIONS OF 
CHICOPEE...LUDLOW...BELCHERTOWN...GRANDBY AND WARE. OTHER 
COMMUNITIES ACROSS EASTERN HAMPSHIRE COUNTY...NORTHWEST WORCESTER 
COUNTY...AND SOUTHEAST FRANKLIN COUNTY REMAIN VULNERABLE TO FLASH 
FLOODING THROUGH AT LEAST MID AFTERNOON.


LAT...LON 4255 7257 4243 7201 4203 7249 4203 7251
      4201 7251 4197 7256 4201 7290

$$

THOMPSON

604 
WGUS71 KBOX 011853
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
253 PM EDT MON JUL 1 2013

CTC003-MAC011-013-015-027-011901-
/O.EXP.KBOX.FF.W.0022.000000T0000Z-130701T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARTFORD CT-HAMPDEN MA-HAMPSHIRE MA-FRANKLIN MA-WORCESTER MA-
253 PM EDT MON JUL 1 2013

...THE FLASH FLOOD WARNING FOR NORTHERN HARTFORD...CENTRAL HAMPDEN...
CENTRAL HAMPSHIRE...SOUTHEASTERN FRANKLIN AND WESTERN WORCESTER
COUNTIES WILL EXPIRE AT 300 PM EDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO 
POSE A THREAT IN A SHORT TERM. HOWEVER...A FLASH FLOOD WATCH REMAINS 
IN EFFECT...AND SMALL STREAMS REMAIN HIGH DUE TO THE RAIN THAT FELL 
EARLIER. ANY ADDITIONAL HEAVY RAIN LATE THIS AFTERNOON OR EVENING 
COULD RESULT IN RENEWED FLOODING OF SMALL STREAMS IN THE AREA.

LAT...LON 4255 7257 4243 7201 4203 7249 4203 7251
      4201 7251 4197 7256 4201 7290

$$

THOMPSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 4:01 AM EDT	Flash Flood Watch	BOX	Franklin, Hampden, Hampshire, Middlesex, Worcester	64 hr
Jul 1, 4:50 AM EDT	Rip Current Statement	BOX	Bristol, Dukes	15 hr
Jul 1, 12:15 PM EDT	Special Weather Statement	BOX	Hampden	60 min
Jul 1, 12:49 PM EDT	Special Weather Statement	BOX	Worcester	41 min
Jul 1, 1:32 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	4 hr
Jul 1, 1:59 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	46 min
Jul 1, 2:23 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Worcester	3 hr
Jul 1, 2:25 PM EDT	Tornado Warning	BOX	Essex, Middlesex, Worcester	50 min
Jul 1, 2:39 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	3 hr
Jul 1, 2:46 PM EDT	Flash Flood Warning	BOX	Middlesex, Worcester	3 hr
Jul 1, 2:56 PM EDT	Tornado Warning	BOX	Essex	49 min
Jul 1, 3:17 PM EDT	Special Marine Warning	BOX		43 min
Jul 1, 3:27 PM EDT	Flash Flood Warning	BOX	Essex	2 hr
Jul 1, 3:35 PM EDT	Tornado Warning	BOX	Essex, Middlesex	40 min
Jul 1, 3:57 PM EDT	Tornado Warning	BOX	Essex, Middlesex, Suffolk	33 min
Jul 1, 4:00 PM EDT	Special Marine Warning	BOX		60 min
Jul 1, 4:03 PM EDT	Small Craft Advisory for Hazardous Seas	BOX		48 hr
Jul 1, 4:59 PM EDT	Special Marine Warning	BOX		61 min
Jul 1, 5:22 PM EDT	Areal Flood Advisory	BOX	Essex	113 min
Jul 1, 1:19 PM EDT	Special Weather Statement	BOX		41 min
Jul 1, 1:31 PM EDT	Tornado Warning	BOX	Capitol Planning Region	29 min

Nearby

Flash Flood Warnings in Massachusetts, 2013 Flash Flood Warnings in Connecticut, 2013 Every flash flood warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.