Alert archive / Massachusetts / Red Flag Warnings in 2023
Red Flag Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this red flag warning at Apr 11, 2023, 1:48 AM EDT for 11 counties in Massachusetts; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut; 5 counties in Rhode Island. It took effect at Apr 11, 2023, 10:00 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
- Apr 11, 2023, 1:48 AM EDT (05:48 UTC)
- In effect from
- Apr 11, 2023, 10:00 AM EDT
- Expired
- Apr 11, 2023, 7:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Boston/Norton, MA
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, 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, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI
The radar
The Boston radar (KBOX), 37 km from the middle of the area, began a volume at 05:51 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
Brookhaven, NY (KOKX), launched 00:00Z, 5.8 hours before the alert went out and 167 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
- 2310 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
002 WWUS81 KBOX 110548 RFWBOX URGENT - FIRE WEATHER MESSAGE National Weather Service Boston/Norton MA 148 AM EDT Tue Apr 11 2023 RIZ001>007-112100- /O.UPG.KBOX.FW.A.0002.230411T1400Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- 148 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT THIS EVENING FOR MUCH OF RHODE ISLAND... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM this morning to 7 PM EDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...All of Rhode Island except for Block Island. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...Southwest 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Between 15 and 25 percent. * TEMPERATURES...In the mid 60s to mid 70s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ CTZ002>004-112100- /O.UPG.KBOX.FW.A.0002.230411T1400Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ Hartford CT-Tolland CT-Windham CT- 148 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT THIS EVENING FOR NORTHERN CONNECTICUT... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM this morning to 7 PM EDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Connecticut, Hartford, Tolland and Windham. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Between 15 and 20 percent. * TEMPERATURES...In the mid 70s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ MAZ002>022-026-112100- /O.UPG.KBOX.FW.A.0002.230411T1400Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ 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- 148 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT THIS EVENING FOR MUCH OF MASSACHUSETTS... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM this morning to 7 PM EDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...All of Massachusetts except for Nantucket and Martha's Vineyard. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Between 15 and 25 percent. * TEMPERATURES...Lower 60s for Barnstable County, and the upper 60s to mid 70s elsewhere. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ For more information from the National Weather Service visit http://weather.gov/box For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
2 follow-up statements
272 WWUS81 KBOX 111346 RFWBOX URGENT - FIRE WEATHER MESSAGE National Weather Service Boston/Norton MA 946 AM EDT Tue Apr 11 2023 RIZ001>007-112300- /O.CON.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- 946 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR MUCH OF RHODE ISLAND... * AFFECTED AREA...All of Rhode Island except for Block Island. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...Southwest 10 to 20 mph. Gusts of 30-35 mph this afternoon. * RELATIVE HUMIDITY...Between 15 to 25 percent. * TEMPERATURES...In the mid 60s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ CTZ002>004-112300- /O.CON.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ Hartford CT-Tolland CT-Windham CT- 946 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR NORTHERN CONNECTICUT... * AFFECTED AREA...In Connecticut, Hartford, Tolland and Windham. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...Southwest 10 to 20 mph. Gusts of 30-35 mph this afternoon. * RELATIVE HUMIDITY...Between 15 to 20 percent. * TEMPERATURES...In the mid 60s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ MAZ002>022-026-112300- /O.CON.KBOX.FW.W.0002.230411T1400Z-230411T2300Z/ Western Franklin MA-Eastern Franklin MA-Northern Worcester MA- Central Middlesex MA-Western Essex MA-Eastern Essex MA- Western Hampshire MA-Western Hampden MA-Eastern Hampshire MA- Eastern Hampden MA-Southern Worcester MA-Western Norfolk MA- Southeast Middlesex MA-Suffolk MA-Eastern Norfolk MA- Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA- Southern Bristol MA-Southern Plymouth MA-Barnstable MA- Northern Middlesex MA- 946 AM EDT Tue Apr 11 2023 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR MUCH OF MASSACHUSETTS... * AFFECTED AREA...All of Massachusetts except for Nantucket and Martha's Vineyard. * TIMING...Tuesday from 10 am through 7 pm. * WINDS...Southwest 10 to 20 mph. Gusts of 30-35 mph this afternoon. * RELATIVE HUMIDITY...Between 15 to 25 percent. * TEMPERATURES...In the mid 60s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ For more information from the National Weather Service visit http://weather.gov/box For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
653 WWUS81 KBOX 112309 RFWBOX URGENT - FIRE WEATHER MESSAGE National Weather Service Boston/Norton MA 709 PM EDT Tue Apr 11 2023 MAZ002>022-026-121215- /O.EXP.KBOX.FW.W.0002.000000T0000Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0003.230412T1400Z-230412T2300Z/ 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- 709 PM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM EDT WEDNESDAY FOR MUCH OF MASSACHUSETTS... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM EDT Wednesday. * AFFECTED AREA...All of Massachusetts except for Nantucket and Martha's Vineyard. * TIMING...Wednesday from 10 am through 7 pm. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 15 to 25 percent. * TEMPERATURES...Upper 60s to mid 70s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, .or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ CTZ002>004-121215- /O.EXP.KBOX.FW.W.0002.000000T0000Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0003.230412T1400Z-230412T2300Z/ Hartford CT-Tolland CT-Windham CT- 709 PM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM EDT WEDNESDAY FOR CONNECTICUT... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM EDT Wednesday. * AFFECTED AREA...In Connecticut, Hartford, Tolland and Windham. * TIMING...Wednesday from 10 am through 7 pm. * WINDS...Northwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 15 to 25 percent. * TEMPERATURES...In the mid 70s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, .or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ RIZ001>007-121215- /O.EXP.KBOX.FW.W.0002.000000T0000Z-230411T2300Z/ /O.NEW.KBOX.FW.W.0003.230412T1400Z-230412T2300Z/ Northwest Providence RI-Southeast Providence RI-Western Kent RI- Eastern Kent RI-Bristol RI-Washington RI-Newport RI- 709 PM EDT Tue Apr 11 2023 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM EDT WEDNESDAY FOR MUCH OF RHODE ISLAND... The National Weather Service in Boston/Norton has issued a Red Flag Warning, which is in effect from 10 AM to 7 PM EDT Wednesday. * AFFECTED AREA...All of Rhode Island except for Block Island. * TIMING...Wednesday from 10 am through 7 pm. * WINDS...Northwest 15 to 25 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 to 25 percent. * TEMPERATURES...In the lower to mid 70s. * LIGHTNING...None. * IMPACTS...Very dry conditions and gusty winds will result in potentially critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, .or will shortly. Any fires that start may spread rapidly and become difficult to extinguish. && $$ For more information from the National Weather Service visit http://weather.gov/box For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/NWSBoston You can follow us on Twitter at @NWSBoston
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 1:54 AM EDT | Gale Warning | BOX | 24 hr | |
| Apr 11, 7:09 PM EDT | Red Flag Warning | BOX | Barnstable, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 24 hr |
Nearby
Red Flag Warnings in Massachusetts, 2023Red Flag Warnings in Rhode Island, 2023Red Flag Warnings in Connecticut, 2023Every red flag warning in 2023
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.