Alert archive / Vermont / Flash Flood Watches in 2021

Flash Flood Watch 2, NWS Burlington, VT

August 1, 2021Orange County, Rutland County, Vermont

NWS Burlington, VT issued this flash flood watch at Aug 1, 2021, 3:53 AM EDT for Orange County, Rutland County, Vermont. It took effect at Aug 1, 2021, 2:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Aug 1, 2021, 3:53 AM EDT (07:53 UTC)
In effect from
Aug 1, 2021, 2:00 PM EDT
Expired
Aug 1, 2021, 10:06 PM EDT
In force
8 hr
Issued by
NWS Burlington, VT
Flood severity
None

Counties Orange County, VT, Rutland County, VT

The radar

The Burlington radar (KCXX), 88 km from the middle of the area, began a volume at 07:55 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 00:00Z, 7.9 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.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 00:00Z on 2021-08-01Temperature 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 00:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1925 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

591 
WGUS61 KBTV 010753
FFABTV

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Burlington VT
353 AM EDT Sun Aug 1 2021

VTZ010>012-019-012000-
/O.NEW.KBTV.FF.A.0002.210801T1800Z-210802T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Orange-Western Rutland-Windsor-Eastern Rutland-
Including the cities of Bradford, Killington, White River Junction, 
East Wallingford, Rutland, Randolph, and Springfield
353 AM EDT Sun Aug 1 2021

...FLASH FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH 
LATE TONIGHT...

The National Weather Service in Burlington has issued a

* Flash Flood Watch for portions of central Vermont and southern 
  Vermont, including the following areas, in central Vermont, 
  Orange. In southern Vermont, Eastern Rutland, Western Rutland and 
  Windsor.

* From 2 PM EDT this afternoon through late tonight.

* Combination of antecedent wet conditions along with the increase 
  threat from showers and thunderstorms, flash flooding could occur.

* Elevated rivers and streams may quickly rise with rainfall later 
  today into tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

JMG
2 follow-up statements
250 
WGUS61 KBTV 011949
FFABTV

Flood Watch
National Weather Service Burlington VT
349 PM EDT Sun Aug 1 2021

VTZ010>012-019-021000-
/O.CON.KBTV.FF.A.0002.000000T0000Z-210802T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Orange-Western Rutland-Windsor-Eastern Rutland-
Including the cities of Bradford, Killington, White River Junction, 
East Wallingford, Rutland, Randolph, and Springfield
349 PM EDT Sun Aug 1 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

The Flash Flood Watch continues for

* Portions of central Vermont and southern Vermont, including the 
  following areas, in central Vermont, Orange. In southern Vermont, 
  Eastern Rutland, Western Rutland and Windsor.

* Through late tonight.

* Due to the combination of antecedent wet conditions along with the 
  increased threat of showers and thunderstorms with heavy rain, 
  flash flooding may occur.

* Rivers and streams may quickly rise with heavy rainfall later 
  tonight into Monday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

Neiles
346 
WGUS61 KBTV 020206
FFABTV

Flood Watch
National Weather Service Burlington VT
1006 PM EDT Sun Aug 1 2021

VTZ010>012-019-020315-
/O.CAN.KBTV.FF.A.0002.000000T0000Z-210802T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Orange-Western Rutland-Windsor-Eastern Rutland-
Including the cities of Bradford, Killington, White River Junction, 
East Wallingford, Rutland, Randolph, and Springfield
1006 PM EDT Sun Aug 1 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Vermont and southern 
Vermont, including Orange, Rutland, and Windsor Counties, has been 
cancelled.

Although light rain showers will continue this evening, the heavy 
rain has exited the region and flooding is no longer expected to 
pose a threat.

$$

Hastings

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 5:45 PM EDTSpecial Weather StatementBTVWindsor45 min
Aug 1, 7:00 PM EDTSpecial Weather StatementBTVRutland60 min

Nearby

Flash Flood Watches in Vermont, 2021Every flash flood watch 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.