Alert archive / Vermont / Flash Flood Warnings in 2023

Flash Flood Warning 18, NWS Burlington, VT

July 9, 2023Essex County, Vermont

NWS Burlington, VT issued this flash flood warning at Jul 9, 2023, 3:13 PM EDT for Essex County, Vermont. It was in force for 3 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
Jul 9, 2023, 3:13 PM EDT (19:13 UTC)
Expired
Jul 9, 2023, 6:15 PM EDT
In force
3 hr
Issued by
NWS Burlington, VT
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Essex County, VT

The radar

The Burlington radar (KCXX), 116 km from the middle of the area, began a volume at 19:16 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

Gray, ME (KGYX), launched 12:00Z, 7.2 hours before the alert went out and 150 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, Gray, ME at 12:00Z on 2023-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 209 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2023-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.193958Sfc1 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
209 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
474 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Burlington, VT wrote its last area forecast discussion before this flash flood warning went out at Jul 9, 2:15 PM EDT, 58 minutes earlier.

Area forecast discussion, Jul 9, 2:15 PM EDT, 58 minutes before
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Hazardous weather outlook, Jul 9, 3:27 AM EDT, 11 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Burlington VT
327 AM EDT Sun Jul 9 2023

NYZ026-029-087-100730-
Northern St. Lawrence-Southeastern St. Lawrence-
Southwestern St. Lawrence-
327 AM EDT Sun Jul 9 2023

This Hazardous Weather Outlook is for northern New York.

.DAY ONE...Today and tonight.

A few moderate to heavy showers and a few thunderstorms will be
possible across St. Lawrence County. However, flooding is not
expected at this time across St. Lawrence County.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NYZ027-028-030-031-034-035-VTZ001>011-016>021-100730-
Northern Franklin-Eastern Clinton-Southern Franklin-Western Clinton-
Western Essex-Eastern Essex-Grand Isle-Western Franklin-Orleans-
Essex-Western Chittenden-Lamoille-Caledonia-Washington-
Western Addison-Orange-Western Rutland-Eastern Franklin-
Eastern Chittenden-Eastern Addison-Eastern Rutland-Western Windsor-
Eastern Windsor-
327 AM EDT Sun Jul 9 2023

...FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH MONDAY
EVENING...

This Hazardous Weather Outlook is for northern New York, central
Vermont, northeast Vermont, northwest Vermont and southern Vermont.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

Scattered showers and thunderstorms are likely to develop this
afternoon. These storms could produce heavy rainfall, frequent
lightning, and gusty winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

 Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 9, 2:08 PM EDT, 1 hour 5 minutes before
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Special weather statement, Jul 9, 3:11 PM EDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 8:32 PM EDTSpecial Weather StatementBTVCaledonia, Essex58 min
Jul 9, 2:08 PM EDTSpecial Weather StatementBTVChittenden52 min
Jul 9, 2:23 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle, Lamoille52 min
Jul 9, 3:11 PM EDTSpecial Weather StatementBTVFranklin49 min
Jul 9, 3:40 PM EDTSpecial Weather StatementBTVLamoille50 min
Jul 9, 3:46 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Washington, Windsor44 min
Jul 9, 4:17 PM EDTFlash Flood Warning Considerable damage threatBTVCaledonia, Lamoille, Washington3 hr
Jul 9, 4:23 PM EDTSevere Thunderstorm WarningBTVCaledonia, Lamoille, Orange, Washington37 min
Jul 9, 5:00 PM EDTSpecial Weather StatementBTVCaledonia45 min
Jul 9, 5:08 PM EDTSevere Thunderstorm WarningBTVAddison, Rutland, Windsor67 min
Jul 9, 6:16 PM EDTAreal Flood WarningBTVCaledonia, Essex3 hr
Jul 9, 4:33 PM EDTSpecial Weather StatementBTVClinton57 min
Jul 9, 4:42 PM EDTSevere Thunderstorm WarningBTVClinton, Franklin48 min
Jul 9, 5:24 PM EDTFlash Flood Warning Considerable damage threatBTVClinton, Franklin3 hr
Jul 9, 5:28 PM EDTSevere Thunderstorm WarningBTVClinton, Franklin62 min
Jul 9, 7:27 PM EDTSpecial Weather StatementBTVClinton48 min
Jul 9, 7:33 PM EDTFlash Flood Warning Considerable damage threatBTVClinton, Franklin3 hr

Nearby

Flash Flood Warnings in Vermont, 2023Every flash flood 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.