Alert archive / Massachusetts / Red Flag Warnings in 2012
Red Flag Warning 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this red flag warning at Mar 23, 2012, 4:02 AM EDT for Essex County, Middlesex County, Massachusetts. It took effect at Mar 23, 2012, 11:00 AM EDT. It was in force for 9 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
- Mar 23, 2012, 4:02 AM EDT (08:02 UTC)
- In effect from
- Mar 23, 2012, 11:00 AM EDT
- Expired
- Mar 23, 2012, 8:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Boston/Norton, MA
Counties Essex County, MA, Middlesex County, MA
The radar
The Boston radar (KBOX), 67 km from the middle of the area, began a volume at 08:02 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, 8.0 hours before the alert went out and 138 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
- 4 J/kg
- Mixed-layer CIN
- -365 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
122 WWUS81 KBOX 230802 RFWBOX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAUNTON MA 402 AM EDT FRI MAR 23 2012 ...A RED FLAG WARNING IS IN EFFECT FOR LATE THIS MORNING THROUGH THIS EVENING FOR SOUTHEASTERN NEW HAMPSHIRE AND NORTHEASTERN MASSACHUSETTS... .ABOVE NORMAL TEMPERATURES...VERY LOW RELATIVE HUMIDITIES...AND WINDS GUSTING BETWEEN 25 AND 30 MPH AND LITTLE TO NO RAIN OVER THE LAST TWO WEEKS WILL RESULT IN CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON. MAZ002>004-007-012-014-NHZ011-230915- /O.CAN.KBOX.FW.A.0001.120323T1500Z-120324T0000Z/ WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA- EASTERN ESSEX MA-SOUTHERN WORCESTER MA-SOUTHEAST MIDDLESEX MA- CHESHIRE NH- 402 AM EDT FRI MAR 23 2012 ...FIRE WEATHER WATCH IS CANCELLED FOR WESTERN AND CENTRAL MASSACHUSETTS... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS CANCELLED THE FIRE WEATHER WATCH. WHILE DRY CONDITIONS EXIST ACROSS WESTERN AND CENTRAL MASSACHUSETTS... NORTHERLY WINDS WILL BE IN THE 10 TO 15 MPH RANGE. $$ MAZ005-006-026-NHZ012-015-231615- /O.UPG.KBOX.FW.A.0001.120323T1500Z-120324T0000Z/ /O.NEW.KBOX.FW.W.0001.120323T1500Z-120324T0000Z/ CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-NORTHERN MIDDLESEX MA- EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH- 402 AM EDT FRI MAR 23 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING FOR SOUTHEASTERN NEW HAMPSHIRE AND NORTHEASTERN MASSACHUSETTS... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * TIMING...LATE THIS MORNING THROUGH EARLY THIS EVENING. * RELATIVE HUMIDITY...AS LOW AS 21 PERCENT. * TEMPERATURES...IN THE UPPER 60S TO LOW 70S. * LIGHTNING...IS NOT EXPECTED ON FRIDAY. * IMPACTS...WITH CONDITIONS EXCEEDING CRITICAL FIRE WEATHER THRESHOLDS AND DRY SURFACE FUELS...ANY GRASS OR BRUSH FIRES THAT IGNITE COULD SPREAD AND BECOME OUT OF CONTROL RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE AN ELEVATED FIRE SPREAD POTENTIAL. && $$ RLG
1 follow-up statement
781 WWUS81 KBOX 240007 RFWBOX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TAUNTON MA 807 PM EDT FRI MAR 23 2012 ...RED FLAG WARNING HAS EXPIRED... MAZ005-006-026-NHZ012-015-240115- /O.EXP.KBOX.FW.W.0001.000000T0000Z-120324T0000Z/ CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-NORTHERN MIDDLESEX MA- EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH- 807 PM EDT FRI MAR 23 2012 ...RED FLAG WARNING HAS EXPIRED FOR SOUTHEASTERN NEW HAMPSHIRE AND NORTHEASTERN MASSACHUSETTS... WINDS HAVE DIMINISHED NOW THAT THE SUN HAS SET AND FIRE WEATHER POTENTIAL HAS DIMINISHED AS WELL. $$ RLG
Nearby
Red Flag Warnings in Massachusetts, 2012Red Flag Warnings in New Hampshire, 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.