Alert archive / Vermont / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 14, NWS Burlington, VT

June 23, 20024 counties in Vermont

NWS Burlington, VT issued this severe thunderstorm warning at Jun 23, 2002, 7:56 PM EDT for 4 counties in Vermont. It was in force for 49 min. 6 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 23, 2002, 7:56 PM EDT (23:56 UTC)
Expired: Jun 23, 2002, 8:45 PM EDT
In force: 49 min
Issued by: NWS Burlington, VT
Area: Whole counties

Counties Caledonia County, VT, Essex County, VT, Orange County, VT, Washington County, VT

The radar

The Burlington radar (KCXX), 78 km from the middle of the area, began a volume at 23:56 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.

What was reported inside it

Time	Report	Where
Jun 23, 8:15 PM EDT	Thunderstorm Wind	Hardwick, VT
Jun 23, 8:15 PM EDT	Thunderstorm Wind	Walden, VT
Jun 23, 8:20 PM EDT	Thunderstorm Wind	St Johnsbury, VT
Jun 23, 8:27 PM EDT	Thunderstorm Wind	Berlin, VT
Jun 23, 8:30 PM EDT	Thunderstorm Wind	Barre, VT
Jun 23, 8:35 PM EDT	Thunderstorm Wind	Warren, VT

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 23, 4:45 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 11.9 hours before the alert went out and 164 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 440 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 105 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 
WUUS51 KBTV 232356
SVRBTV
VTC005-009-017-023-240045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BURLINGTON VT
754 PM EDT SUN JUN 23 2002

THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ESSEX COUNTY IN VERMONT
  CALEDONIA COUNTY IN VERMONT
  WASHINGTON COUNTY IN VERMONT
  ORANGE COUNTY IN VERMONT

* UNTIL 845 PM EDT

* AT 751 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTH OF  
  HARDWICK TO 6 MILES NORTHWEST OF WORCESTER TO 5 MILES WEST OF      
  WATERBURY...MOVING SOUTHEAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE...
  NEAR WATERBURY AROUND 750 PM EDT
  NEAR MORETOWN...ISLAND POND...CANAAN...WORCESTER AROUND 800 PM EDT 
  NEAR WEST BURKE...WAITSFIELD...SHEFFIELD AROUND 810 PM EDT
  NEAR MARSHFIELD AROUND 820 PM EDT

THIS IS A DANGEROUS STORM. PREPARE FOR DAMAGING WINDS AND LARGE HAIL.
SEEK INDOOR SHELTER...AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CAN
PRODUCE TORNADOES WITH LITTLE WARNING.

.END

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 23, 4:49 PM EDT, 3 hours 7 minutes earlier.

Area forecast discussion, Jun 23, 4:49 PM EDT, 3 hours 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BURLINGTON VT
449 PM EDT SUN JUN 23 2002

RADAR LOOP SHOWING A STRONG LINE OF TSTMS ACROSS THE OTTAWA VLY
ATTM.  AREA UNDER SVR TSTM WATCH UNTIL 11 PM EDT.  WILL GO WITH
LIKELY POPS TONIGHT.  SHOWERS/TSTMS SHOULD END BY MIDNIGHT IN THE
NORTHERN ZONES...AND BY EARLY MORNING ACROSS SRN VT. HIGH PRES TO
BUILD INTO THE AREA ON MONDAY FOR FAIR AND DRY WX THROUGH MOST OF
TUESDAY.  WARM FRONT TO WILL APPROACH THE AREA LATE TUES NIGHT...SO
HAVE PUT IN A CHANCE OF SHOWERS LATE TUESDAY NIGHT.  MODELS SHOW
UPPER SHRTWV TO DIG SEWD ACROSS THE GREAT LAKES TUES NIGHT AND WED.
WILL GO WITH LIKELY POPS FOR SHOWERS/TSTMS WED AND THU.

EXTENDED...WILL REMOVE MENTION OF PRECIP ON FRIDAY AND MOST OF
SATURDAY AND WILL GO WITH PARTLY CLOUDY SKIES.

.BTV...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 PM EDT
       VTZ001>012 NYZ026>031-034-035.

WGH

In the hours before

Special weather statement, Jun 23, 4:33 PM EDT, 3 hours 23 minutes before

NYZ026>031-034-035-VTZ001>012-240300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
430 PM EDT SUN JUNE 23 2002

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 11 PM EDT...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
UNTIL 11 PM EDT FOR THE FOLLOWING COUNTIES...

IN NORTHERN NEW YORK STATE...SAINT LAWRENCE...FRANKLIN...
CLINTON...AND ESSEX COUNTIES. IN VERMONT...GRAND ISLE...FRANKLIN...
ORLEANS...CALEDONIA...ESSEX...LAMOILLE...CHITTENDEN...WASHINGTON...
ADDISON...ORANGE...WINDSOR...AND RUTLAND COUNTIES.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

ST JEAN/NWSFO BURLINGTON VT

Local storm report, Jun 23, 7:42 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BURLINGTON VT
742 PM EDT SUN JUN 23 2002

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0640 PM    NORFOLK                   NY   WIND DAMAGE
06/23/02   ST LAWRENCE                    LINES DOWN REPORTED BY

0640 PM    ALONG RTE 37 WADDINGTON   NY   WIND DAMAGE
06/23/02   ST LAWRENCE                    PHONE POLES AND LINES DOWN

0655 PM    MASSENA                   NY   WIND DAMAGE
06/23/02   ST LAWRENCE                    TREES DOWN, POWER
                                          OUTAGESREPORTED BY

0700 PM    NORFOLK                   NY   WIND DAMAGE
06/23/02   ST LAWRENCE                    TREE LIMBS AND WIRES DOWN
                                          REPORTED BY

0720 PM    PERU                      NY   WIND DAMAGE
06/23/02   CLINTON                        TREE LIMBS DOWN REPORTED BY

0735 PM    NORFOLK                   NY   WIND DAMAGE
06/23/02   ST LAWRENCE                    TREE DOWN ON TRUCK
                                          REPORTED BY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 6:38 PM EDT	Severe Thunderstorm Warning	BTV	Essex, Orleans	37 min
Jun 23, 6:47 PM EDT	Severe Thunderstorm Warning	BTV	Franklin, Grand Isle	43 min
Jun 23, 7:17 PM EDT	Severe Thunderstorm Warning	BTV	Caledonia, Essex, Lamoille, Orleans	43 min
Jun 23, 7:27 PM EDT	Severe Thunderstorm Warning	BTV	Chittenden	63 min

Nearby

Severe Thunderstorm Warnings in Vermont, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.