Alert archive / Vermont / Flash Flood Warnings in 2008

Flash Flood Warning 13, NWS Burlington, VT

August 6, 20085 counties in Vermont

NWS Burlington, VT issued this flash flood warning at Aug 6, 2008, 8:49 AM EDT for 5 counties in Vermont. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 6, 2008, 8:49 AM EDT (12:49 UTC)
Expired: Aug 6, 2008, 2:45 PM EDT
In force: 6 hr
Issued by: NWS Burlington, VT
Area: Storm-based polygon
Flood severity: None

Counties Caledonia County, VT, Essex County, VT, Lamoille County, VT, Orleans County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 78 km from the middle of the area, began a volume at 12:51 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

Gray, ME (KGYX), launched 12:00Z, 0.8 hours before the alert went out and 176 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 12 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 559 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KBTV 061249
FFWBTV
VTC005-009-015-019-023-061845-
/O.NEW.KBTV.FF.W.0013.080806T1249Z-080806T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
849 AM EDT WED AUG 6 2008

THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME NORTHEASTERN WASHINGTON COUNTY IN CENTRAL VERMONT
  NORTHERN CALEDONIA COUNTY IN NORTHEAST VERMONT
  WEST CENTRAL ESSEX COUNTY IN NORTHEAST VERMONT
  SOUTHERN ORLEANS COUNTY IN NORTHEAST VERMONT
  EAST CENTRAL LAMOILLE COUNTY IN NORTHWEST VERMONT

* UNTIL 245 PM EDT

* AT 839 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES
  OF 1.5 TO 2.5 INCHES OF RAIN HAVE FALLEN IN THE WARNING AREA. 
  ADDITIONAL RAINFALL OF 1 TO 2 INCHES IS POSSIBLE IN THIS AREA 
  OVER THE NEXT 2 TO 3 HOURS...WHICH WILL LIKELY CAUSE FLOODING OF 
  SMALL CREEKS AND STREAMS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WESTMORE...
  WEST BURKE...ISLAND POND...GLOVER...EAST CHARLESTON...CRAFTSBURY...
  BARTON...WEST GLOVER AND SUTTON

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 4463 7252 4494 7182 4474 7171 4461 7207
      4449 7231 4449 7248

$$

JMG

2 follow-up statements

000 
WGUS71 KBTV 061402
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
1002 AM EDT WED AUG 6 2008

VTC005-009-015-019-023-061845-
/O.CON.KBTV.FF.W.0013.000000T0000Z-080806T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAMOILLE VT-CALEDONIA VT-WASHINGTON VT-ORLEANS VT-ESSEX VT-
1002 AM EDT WED AUG 6 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR
EXTREME NORTHEASTERN WASHINGTON COUNTY IN CENTRAL VERMONT...AND WEST
CENTRAL ESSEX...SOUTHERN ORLEANS AND NORTHERN CALEDONIA COUNTIES IN
NORTHEAST VERMONT...AND EAST CENTRAL LAMOILLE COUNTY IN NORTHWEST
VERMONT...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
CRAFTSBURY...GREENSBORO...WESTMORE...ISLAND POND...GLOVER...EAST 
CHARLESTON...BARTON AND WEST GLOVER.

AT 948 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE MODERATE TO OCCASIONALLY HEAVY RAINFALL OCCURRING ACROSS 
THE WARNING AREA. ADDITIONAL RAINFALL AMOUNT OF UP TO AN INCH OR 
MORE ARE POSSIBLE OVER THE NEXT FEW HOURS.

EXCESSIVE RUNOFF FROM THIS HEAVY RAINFALL WILL LIKELY CAUSE FLOODING 
OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND 
ALONG THE BANKS OF CREEKS AND STREAMS. SPECIFIC THREAT AREAS WOULD 
INCLUDE ALDER BROOK...CASS BROOK...AND HEADWATERS OF THE BLACK RIVER.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BURLINGTON. AND REMEMBER...IF ENCOUNTERING FLOODED ROADWAYS...PLEASE 
TURN AROUND...DONT DROWN.

LAT...LON 4463 7252 4494 7182 4474 7171 4461 7207
      4449 7231 4449 7248

$$

JMG

000 
WGUS71 KBTV 061839
FFSBTV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
239 PM EDT WED AUG 6 2008

VTC005-009-015-019-023-061847-
/O.EXP.KBTV.FF.W.0013.000000T0000Z-080806T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAMOILLE VT-CALEDONIA VT-WASHINGTON VT-ORLEANS VT-ESSEX VT-
239 PM EDT WED AUG 6 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 245 PM EDT FOR EXTREME
NORTHEASTERN WASHINGTON...WEST CENTRAL ESSEX...SOUTHERN ORLEANS... 
NORTHERN CALEDONIA AND EAST CENTRAL LAMOILLE COUNTIES IN NORTHWEST 
VERMONT...

THE HEAVY RAINFALL FROM EARLIER TODAY HAS ENDED...ALTHOUGH AREA 
STREAMS AND SMALL RIVERS WILL REMAIN RUNNING HIGH FOR THE REMAINDER 
OF THE AFTERNOON. EXTREME CARE SHOULD BE TAKEN IF NEAR ANY FAST 
MOVING WATER.

LAT...LON 4463 7252 4494 7182 4474 7171 4461 7207
      4449 7231 4449 7248

$$
NASH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:23 AM EDT	Flash Flood Warning	BTV	Addison, Rutland	6 hr
Aug 6, 9:16 AM EDT	Areal Flood Advisory	BTV	Addison, Chittenden, Lamoille, Orange, Washington	5 hr
Aug 6, 11:44 AM EDT	Areal Flood Advisory	BTV	Rutland	2 hr
Aug 6, 3:43 PM EDT	Severe Thunderstorm Warning	BTV	Addison, Rutland	62 min
Aug 6, 3:55 PM EDT	Areal Flood Advisory	BTV	Addison, Rutland	107 min
Aug 6, 5:05 PM EDT	Severe Thunderstorm Warning	BTV	Rutland, Windsor	25 min
Aug 6, 6:15 PM EDT	Areal Flood Advisory	BTV	Addison, Orange, Rutland, Windsor	93 min

Nearby

Flash Flood Warnings in Vermont, 2008 Every flash flood warning in 2008

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.