Alert archive / Massachusetts / Red Flag Warnings in 2007
Red Flag Warning 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this red flag warning at Apr 23, 2007, 5:15 AM EDT for 10 counties in Massachusetts; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut; Kent County, Providence County, Rhode Island. It took effect at Apr 23, 2007, 11:21 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
- Apr 23, 2007, 5:15 AM EDT (09:15 UTC)
- In effect from
- Apr 23, 2007, 11:21 AM EDT
- Expired
- Apr 23, 2007, 8:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Boston/Norton, MA
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, Kent County, RI, Providence County, RI
The radar
The Boston radar (KBOX), 51 km from the middle of the area, began a volume at 09:20 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, 9.3 hours before the alert went out and 153 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2871 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS81 KBOX 230915 RFWBOX RED FLAG WARNING NATIONAL WEATHER SERVICE TAUNTON MA 515 AM EDT MON APR 23 2007 CTZ002>004-MAZ002>019-026-NHZ012-RIZ001>003-231715- /O.UPG.KBOX.FW.A.0004.070423T1500Z-070424T0100Z/ /O.NEW.KBOX.FW.W.0004.070423T1600Z-070424T0000Z/ 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- EASTERN HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI- 515 AM EDT MON APR 23 2007 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 15 AND 25 PERCENT BY LATE THIS MORNING...AND CONTINUE AT THOSE LEVELS INTO THE FIRST PART OF THIS EVENING. IN ADDITION...SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO BETWEEN 15 AND 20 MPH...WITH GUSTS BETWEEN 30 AND 35 MPH THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ MAZ020-021-NHZ011-015-RIZ004>007-231715- /O.EXT.KBOX.FW.A.0004.070423T1600Z-070424T0000Z/ SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-CHESHIRE NH- WESTERN AND CENTRAL HILLSBOROUGH NH-EASTERN KENT RI-BRISTOL RI- WASHINGTON RI-NEWPORT RI- 515 AM EDT MON APR 23 2007 ...FIRE WEATHER WATCH NOW IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING... THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 15 AND 25 PERCENT BY LATE THIS MORNING AWAY FROM THE IMMEDIATE COAST...AND 25 TO 35 PERCENT ALONG THE IMMEDIATE COAST. THESE HUMIDITY LEVELS SHOULD CONTINUE AT THOSE LEVELS INTO THE FIRST PART OF THIS EVENING. IN ADDITION... SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO BETWEEN 15 AND 20 MPH... WITH A FEW GUSTS UP TO 25 MPH THIS AFTERNOON. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. $$
1 follow-up statement
000 WWUS81 KBOX 231521 RFWBOX RED FLAG WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1121 AM EDT MON APR 23 2007 NHZ011-015-232330- /O.UPG.KBOX.FW.A.0004.070423T1600Z-070424T0000Z/ /O.EXA.KBOX.FW.W.0004.070423T1600Z-070424T0000Z/ CHESHIRE NH-WESTERN AND CENTRAL HILLSBOROUGH NH- 1121 AM EDT MON APR 23 2007 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 15 AND 25 PERCENT THIS AFTERNOON...AND CONTINUE AT THOSE LEVELS INTO THE FIRST PART OF THIS EVENING. IN ADDITION... SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO BETWEEN 15 AND 20 MPH... WITH GUSTS UP TO 30 MPH THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ CTZ002>004-MAZ002>019-026-NHZ012-RIZ001>003-232330- /O.CON.KBOX.FW.W.0004.070423T1600Z-070424T0000Z/ HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA- EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA- WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA- WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA- SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA- SUFFOLK MA-EASTERN NORFOLK MA-NORTHERN BRISTOL MA- WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-NORTHERN MIDDLESEX MA- EASTERN HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI- SOUTHEAST PROVIDENCE RI-WESTERN KENT RI- 1121 AM EDT MON APR 23 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 15 AND 25 PERCENT THIS AFTERNOON...AND CONTINUE AT THOSE LEVELS INTO THE FIRST PART OF THIS EVENING. IN ADDITION...SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO BETWEEN 15 AND 20 MPH...WITH GUSTS BETWEEN 30 AND 35 MPH THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. $$ MAZ020-021-RIZ004>007-232330- /O.CON.KBOX.FW.A.0004.070423T1600Z-070424T0000Z/ SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-EASTERN KENT RI- BRISTOL RI-WASHINGTON RI-NEWPORT RI- 1121 AM EDT MON APR 23 2007 ...FIRE WEATHER WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... A FIRE WEATHER WATCH REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. RELATIVE HUMIDITIES WILL FALL TO BETWEEN 20 AND 30 PERCENT BY LATE THIS MORNING AWAY FROM THE IMMEDIATE COAST...AND 30 TO 40 PERCENT ALONG THE IMMEDIATE SOUTH COAST. THESE HUMIDITY LEVELS SHOULD CONTINUE AT THOSE LEVELS INTO THE FIRST PART OF THIS EVENING. IN ADDITION... SOUTHWEST WINDS ARE EXPECTED TO INCREASE TO BETWEEN 15 AND 20 MPH... WITH A FEW GUSTS UP TO 25 MPH THIS AFTERNOON. A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. $$ KJC
Nearby
Red Flag Warnings in Massachusetts, 2007Red Flag Warnings in Connecticut, 2007Red Flag Warnings in Rhode Island, 2007Every red flag warning in 2007
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.