Alert archive / Massachusetts / Red Flag Warnings in 2021

Red Flag Warning 1, NWS Albany, NY

March 12, 2021Berkshire County, Massachusetts; Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this red flag warning at Mar 12, 2021, 1:47 PM EST for Berkshire County, Massachusetts; Northwest Hills Planning Region, Connecticut. It took effect at Mar 13, 2021, 7:00 AM EST. It was in force for 10 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 12, 2021, 1:47 PM EST (18:47 UTC)
In effect from
Mar 13, 2021, 7:00 AM EST
Expired
Mar 13, 2021, 5:00 PM EST
In force
10 hr
Issued by
NWS Albany, NY

Counties Northwest Hills Planning Region, CT, Berkshire County, MA

The radar

The Albany radar (KENX), 88 km from the middle of the area, began a volume at 18:52 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

Albany, NY (KALY), launched 12:00Z, 6.8 hours before the alert went out and 82 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, Albany, NY at 12:00Z on 2021-03-12Temperature 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, Albany, NY at 12:00Z on 2021-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -215 square meters per square second.1939587897117Sfc1 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
1514 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
-215 m²/s²
0-3 km storm-relative helicity
-116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

925 
WWUS81 KALY 121847
RFWALY

URGENT - FIRE WEATHER MESSAGE
National Weather Service Albany NY
147 PM EST Fri Mar 12 2021

CTZ001-013-MAZ001-025-131100-
/O.NEW.KALY.FW.W.0001.210313T1200Z-210313T2200Z/
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-
147 PM EST Fri Mar 12 2021

...RED FLAG WARNING IN EFFECT FROM 7 AM TO 5 PM EST SATURDAY FOR
GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY FOR BERKSHIRE
COUNTY MA AND LITCHFIELD COUNTY CT...

The National Weather Service in Albany has issued a Red Flag
Warning for gusty northwest winds and very low relative humidity,
which is in effect from 7 AM to 5 PM EST Saturday.

* Affected Area...Berkshire County Massachusetts, and Litchfield
  County Connecticut for locations where a snow pack no longer 
  exists.

* Timing...Saturday morning through late afternoon. 

* Winds...West to northwest 10 to 15 mph with gusts up to 25 mph.

* Relative Humidity...As low as 25 to 30 percent.

* Temperatures...Highs in the mid-30s to low 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
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$
1 follow-up statement
062 
WWUS81 KALY 130815
RFWALY

URGENT - FIRE WEATHER MESSAGE
National Weather Service Albany NY
315 AM EST Sat Mar 13 2021


CTZ001-013-MAZ001-025-132200-
/O.CON.KALY.FW.W.0001.210313T1200Z-210313T2200Z/
Northern Litchfield-Southern Litchfield-Northern Berkshire-
Southern Berkshire-
315 AM EST Sat Mar 13 2021

...RED FLAG WARNING IN EFFECT FROM 7 AM THIS MORNING TO 5 PM EST 
THIS AFTERNOON FOR GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE 
HUMIDITY ACROSS BERKSHIRE COUNTY MA AND LITCHFIELD COUNTY CT...

* Affected Area...Berkshire County Massachusetts, and Litchfield
  County Connecticut for locations where a snow pack no longer
  exists.

* Timing...This morning through late afternoon.

* Winds...Northwest 10 to 20 mph with gusts up to 35 mph.

* Relative Humidity...As low as 25 to 30 percent.

* Temperatures...Highs in the mid 30s to low 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
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 3:27 AM ESTWind AdvisoryALYBerkshire27 hr

Nearby

Red Flag Warnings in Massachusetts, 2021Red Flag Warnings in Connecticut, 2021Every red flag warning in 2021

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.