Alert archive / Massachusetts / Red Flag Warnings in 2013

Red Flag Warning 2, NWS Boston/Norton, MA

April 6, 201310 counties in Massachusetts

NWS Boston/Norton, MA issued this red flag warning at Apr 6, 2013, 4:42 AM EDT for 10 counties in Massachusetts. It took effect at Apr 6, 2013, 9:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 6, 2013, 4:42 AM EDT (08:42 UTC)
In effect from
Apr 6, 2013, 9:00 AM EDT
Expired
Apr 6, 2013, 5:00 PM EDT
In force
8 hr
Issued by
NWS Boston/Norton, MA

Counties 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

The radar

The Boston radar (KBOX), 53 km from the middle of the area, began a volume at 08:42 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, 8.7 hours before the alert went out and 152 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2013-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2013-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -184 square meters per square second.1939587897117136156175194Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-184 m²/s²
0-3 km storm-relative helicity
-101 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.

666 
WWUS81 KBOX 060842
RFWBOX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
442 AM EDT SAT APR 6 2013

...FIRE WEATHER WATCH IN EFFECT LATE SATURDAY MORNING THROUGH
SATURDAY AFTERNOON FOR SOUTHERN NEW HAMPSHIRE AND MOST OF
MASSACHUSETTS...

NHZ012-061645-
/O.UPG.KBOX.FW.A.0002.130406T1400Z-130406T2200Z/
/O.NEW.KBOX.FW.W.0002.130406T1300Z-130406T2100Z/
EASTERN HILLSBOROUGH NH-
442 AM EDT SAT APR 6 2013

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT
THIS AFTERNOON FOR EASTERN HILLSBOROUGH...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG
WARNING FOR DRY CONDITIONS AND STRONG WIND GUSTS...WHICH IS IN
EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON. THE FIRE
WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...EASTERN HILLSBOROUGH NH.

* WINDS...NORTHWEST AROUND 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE MIDDLE TO UPPER 40S.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

NHZ011-015-061645-
/O.NEW.KBOX.FW.W.0002.130406T1300Z-130406T2100Z/
CHESHIRE NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
442 AM EDT SAT APR 6 2013

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT
THIS AFTERNOON FOR WESTERN AND CENTRAL HILLSBOROUGH COUNTY AS 
WELL AS CHESHIRE COUNTY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG
WARNING FOR DRY CONDITIONS AND STRONG WIND GUSTS...WHICH IS IN
EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON.

* AFFECTED AREAS...CHESHIRE NH AND WESTERN AND CENTRAL 
  HILLSBOROUGH NH...ACROSS AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 15 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE LOWER TO MID 40S.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

MAZ002>021-026-061645-
/O.NEW.KBOX.FW.W.0002.130406T1300Z-130406T2100Z/
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-NORTHERN MIDDLESEX MA-
442 AM EDT SAT APR 6 2013

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT
THIS AFTERNOON FOR MOST OF MASSACHUSETTS EXCEPT CAPE COD AND THE
ISLANDS AND BERKSHIRE COUNTY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG
WARNING FOR DRY CONDITIONS AND STRONG WIND GUSTS...WHICH IS IN
EFFECT FROM 9 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON.

* AFFECTED AREA...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 AND NORTHERN 
  MIDDLESEX MA.

* AFFECTED AREAS...MOST OF MASSACHUSETTS EXCEPT CAPE COD AND THE
  ISLANDS AND BERKSHIRE COUNTY...AND IN AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE LOWER 40S TO AROUND 50.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

HTTP://WEATHER.GOV/BOX  /ALL LOWER CASE/
2 follow-up statements
660 
WWUS81 KBOX 060854
RFWBOX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
454 AM EDT SAT APR 6 2013

...RED FLAG WARNING IN EFFECT LATE THIS MORNING THROUGH THIS 
AFTERNOON FOR SOUTHERN NEW HAMPSHIRE AND MOST OF MASSACHUSETTS...

NHZ011-012-015-061700-
/O.CON.KBOX.FW.W.0002.130406T1300Z-130406T2100Z/
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
454 AM EDT SAT APR 6 2013

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO
5 PM EDT THIS AFTERNOON FOR WESTERN AND CENTRAL HILLSBOROUGH
COUNTY AS WELL AS CHESHIRE COUNTY...

* AFFECTED AREAS...SOUTH CENTRAL AND SOUTHWEST NEW HAMPSHIRE...
  ACROSS AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 15 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE LOWER TO MID 40S.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

MAZ002>021-026-061700-
/O.CON.KBOX.FW.W.0002.130406T1300Z-130406T2100Z/
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-NORTHERN MIDDLESEX MA-
454 AM EDT SAT APR 6 2013

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO
5 PM EDT THIS AFTERNOON FOR MOST OF MASSACHUSETTS EXCEPT CAPE COD
AND THE ISLANDS AND BERKSHIRE COUNTY...

* AFFECTED AREA...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 AND NORTHERN 
  MIDDLESEX MA.

* AFFECTED AREAS...MOST OF MASSACHUSETTS EXCEPT CAPE COD AND THE 
  ISLANDS AND BERKSHIRE COUNTY...AND IN AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...LATE SATURDAY MORNING THROUGH SATURDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE LOWER 40S TO AROUND 50.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

HTTP://WEATHER.GOV/BOX  /ALL LOWER CASE/
471 
WWUS81 KBOX 061457
RFWBOX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1057 AM EDT SAT APR 6 2013

...RED FLAG WARNING IN EFFECT LATE THIS MORNING THROUGH THIS
AFTERNOON FOR SOUTHERN NEW HAMPSHIRE AND MOST OF MASSACHUSETTS...

NHZ011-012-015-062100-
/O.CON.KBOX.FW.W.0002.000000T0000Z-130406T2100Z/
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
1057 AM EDT SAT APR 6 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON FOR WESTERN AND CENTRAL HILLSBOROUGH COUNTY AS WELL AS
CHESHIRE COUNTY...

* AFFECTED AREAS...SOUTH CENTRAL AND SOUTHWEST NEW HAMPSHIRE... 
  ACROSS AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...THROUGH 5 PM.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* TEMPERATURES...HIGHS WILL BE IN THE LOWER TO MID 40S.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

MAZ002>021-026-062100-
/O.CON.KBOX.FW.W.0002.000000T0000Z-130406T2100Z/
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-NORTHERN MIDDLESEX MA-
1057 AM EDT SAT APR 6 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON FOR MOST OF MASSACHUSETTS EXCEPT CAPE COD AND THE
ISLANDS AND BERKSHIRE COUNTY...

* AFFECTED AREA...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 AND NORTHERN 
  MIDDLESEX MA.

* AFFECTED AREAS...MOST OF MASSACHUSETTS EXCEPT CAPE COD AND THE 
  ISLANDS AND BERKSHIRE COUNTY...AND IN AREAS WITHOUT SNOW COVER.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...THROUGH 5 PM.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* TEMPERATURES...HIGHS WILL RANGE FROM THE LOWER 40S TO AROUND
  50.

* IMPACTS...DRY WEATHER AND GUSTY WINDS WILL RESULT IN CRITICAL 
  FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR SHORTLY. ANY FIRES THAT START MAY SPREAD RAPIDLY AND
BECOME DIFFICULT TO EXTINGUISH.

&&

$$

HTTP://WEATHER.GOV/BOX  /ALL LOWER CASE/

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 6, 4:12 PM EDTSmall Craft AdvisoryBOX40 hr

Nearby

Red Flag Warnings in Massachusetts, 2013Red Flag Warnings in New Hampshire, 2013Every red flag 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.