Alert archive / Massachusetts / Red Flag Warnings in 2012

Red Flag Warning 8, NWS Boston/Norton, MA

April 10, 201211 counties in Massachusetts; Providence County, Rhode Island

NWS Boston/Norton, MA issued this red flag warning at Apr 10, 2012, 12:23 PM EDT for 11 counties in Massachusetts; Providence County, Rhode Island. It was in force for 7 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 10, 2012, 12:23 PM EDT (16:23 UTC)
Expired
Apr 10, 2012, 7:24 PM EDT
In force
7 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, 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, Providence County, RI

The radar

The Boston radar (KBOX), 40 km from the middle of the area, began a volume at 16:21 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, 4.4 hours before the alert went out and 139 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 12:00Z on 2012-04-10Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 2012-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.19395878Sfc1 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
2168 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
88 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.

772 
WWUS81 KBOX 101623
RFWBOX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1223 PM EDT TUE APR 10 2012

...CRITICAL FIRE WEATHER CONDITIONS PRESENTLY IMPACTING
MASSACHUSETTS AND INTERIOR RHODE ISLAND...

MAZ002>022-026-RIZ001-002-110000-
/O.NEW.KBOX.FW.W.0008.120410T1623Z-120411T0000Z/
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-
NORTHERN MIDDLESEX MA-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-
1223 PM EDT TUE APR 10 2012

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG
WARNING FOR MUCH OF THE STATE OF MASSACHUSETTS...AND PROVIDENCE
COUNTY IN RHODE ISLAND...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS
EVENING.

* WINDS...WEST 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TEMPERATURES...IN THE UPPER 50S TO LOW 60S.

* LIGHTNING...THERE IS THE SLIGHT POSSIBILITY FOR AN ISOLATED
  THUNDERSTORM FOR LOCATIONS ALONG AND SOUTH OF THE MASSACHUSETTS
  TURNPIKE INTO THIS EVENING. CONFIDENCE IS LOW.

* IMPACTS...ANY FIRES THAT DEVELOP TODAY WILL HAVE THE POTENTIAL
  TO SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE AN ELEVATED
FIRE SPREAD POTENTIAL.

&&

$$

SIPPRELL
1 follow-up statement
298 
WWUS81 KBOX 102324
RFWBOX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
724 PM EDT TUE APR 10 2012

MAZ002>022-026-RIZ001-002-110030-
/O.CAN.KBOX.FW.W.0008.000000T0000Z-120411T0000Z/
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-
NORTHERN MIDDLESEX MA-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-
724 PM EDT TUE APR 10 2012

...RED FLAG WARNING IS CANCELLED FOR MASSACHUSETTS AND NORTHERN RHODE ISLAND...  

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS CANCELLED THE RED
FLAG WARNING.

WINDS HAVE DIMINISHED ACROSS THE WARNING AREA SO HAVE CANCELLED
THE RED FLAG WARNING.

$$

RLG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 3:37 AM EDTSmall Craft AdvisoryBOX16 hr
Apr 10, 5:09 AM EDTSmall Craft Advisory for Hazardous SeasBOX14 hr

Nearby

Red Flag Warnings in Massachusetts, 2012Red Flag Warnings in Rhode Island, 2012Every red flag warning 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.