Alert archive / Vermont / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 21, NWS Burlington, VT
NWS Burlington, VT issued this severe thunderstorm warning at Jun 26, 2009, 5:13 PM EDT for Chittenden County, Franklin County, Grand Isle County, Vermont; Clinton County, New York. It was in force for 47 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 26, 2009, 5:13 PM EDT (21:13 UTC)
- Expired
- Jun 26, 2009, 6:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Burlington, VT
- Area
- Storm-based polygon
Counties Clinton County, NY, Chittenden County, VT, Franklin County, VT, Grand Isle County, VT
The radar
The Burlington radar (KCXX), 37 km from the middle of the area, began a volume at 21:13 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 | Remark |
|---|---|---|---|
| Jun 26, 5:20 PM EDT | HAIL 0.75 | 4 Sw Georgia Center, VT | PENNY SIZE HAIL REPORTED IN MILTONBORO SECTION OF MILTON |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 26, 12:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.2 hours before the alert went out and 246 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.
- Mixed-layer CAPE
- 193 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KBTV 262113 SVRBTV NYC019-VTC007-011-013-262200- /O.NEW.KBTV.SV.W.0021.090626T2113Z-090626T2200Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BURLINGTON VT 513 PM EDT FRI JUN 26 2009 THE NATIONAL WEATHER SERVICE IN BURLINGTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLINTON COUNTY IN NORTHERN NEW YORK CHITTENDEN COUNTY IN NORTHWEST VERMONT FRANKLIN COUNTY IN NORTHWEST VERMONT GRAND ISLE COUNTY IN NORTHWEST VERMONT * UNTIL 600 PM EDT. * AT 509 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR BURTON ISLAND STATE PARK...AND MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... GEORGIA CENTER AND ST. ALBANS BAY STATE PARK AROUND 520 PM EDT. NORTH FAIRFAX...ST. ALBANS AND 7 MILES NORTH OF FAIRFAX AROUND 530 PM EDT. FAIRFIELD AROUND 545 PM EDT. 6 MILES SOUTH OF SHELDON AROUND 550 PM EDT. IF ON OR NEAR LAKE CHAMPLAIN...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. LAT...LON 4501 7296 4473 7280 4461 7328 4481 7334 TIME...MOT...LOC 2113Z 252DEG 18KT 4474 7317 $$ DD
The office that day
Everything else NWS Burlington, VT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 9:52 PM EDT | Special Weather Statement | BTV | Orleans | 53 min |
| Jun 25, 10:43 PM EDT | Special Weather Statement | BTV | Essex | 62 min |
| Jun 25, 11:10 PM EDT | Special Weather Statement | BTV | Windsor | 65 min |
| Jun 25, 11:47 PM EDT | Special Weather Statement | BTV | Caledonia, Essex | 58 min |
| Jun 26, 1:52 PM EDT | Special Weather Statement | BTV | Franklin, Grand Isle | 53 min |
| Jun 26, 1:58 PM EDT | Special Weather Statement | BTV | Essex | 47 min |
| Jun 26, 2:51 PM EDT | Severe Thunderstorm Warning | BTV | Franklin | 24 min |
| Jun 26, 3:24 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, Grand Isle | 36 min |
| Jun 26, 3:47 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, Orleans | 28 min |
| Jun 26, 4:14 PM EDT | Severe Thunderstorm Warning | BTV | Franklin, Grand Isle | 31 min |
| Jun 26, 4:29 PM EDT | Areal Flood Advisory | BTV | Franklin, Orleans | 3 hr |
| Jun 26, 4:42 PM EDT | Severe Thunderstorm Warning | BTV | Franklin | 33 min |
| Jun 26, 4:50 PM EDT | Severe Thunderstorm Warning | BTV | Chittenden, Franklin, Grand Isle | 25 min |
| Jun 26, 5:02 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Chittenden, Franklin, Grand Isle | 43 min |
| Jun 26, 5:06 PM EDT | Severe Thunderstorm Warning | BTV | Franklin | 24 min |
| Jun 26, 5:40 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Chittenden, Franklin, Lamoille | 50 min |
| Jun 26, 6:05 PM EDT | Severe Thunderstorm Warning | BTV | Addison, Rutland | 55 min |
| Jun 26, 6:22 PM EDT | Special Weather Statement | BTV | Lamoille, Orleans, Washington | 53 min |
| Jun 26, 6:30 PM EDT | Special Weather Statement | BTV | Addison | 60 min |
| Jun 26, 6:52 PM EDT | Severe Thunderstorm Warning | BTV | Caledonia, Lamoille, Orleans | 27 min |
| Jun 26, 7:26 PM EDT | Special Weather Statement | BTV | Orleans | 64 min |
| Jun 26, 7:35 PM EDT | Special Weather Statement | BTV | Orange, Rutland | 55 min |
| Jun 26, 7:36 PM EDT | Areal Flood Advisory | BTV | Franklin, Lamoille, Orleans | 2 hr |
| Jun 26, 1:15 PM EDT | Special Weather Statement | BTV | St. Lawrence | 75 min |
| Jun 26, 2:03 PM EDT | Severe Thunderstorm Warning | BTV | St. Lawrence | 57 min |
| Jun 26, 2:28 PM EDT | Severe Thunderstorm Warning | BTV | St. Lawrence | 34 min |
| Jun 26, 2:59 PM EDT | Severe Thunderstorm Warning | BTV | St. Lawrence | 42 min |
| Jun 26, 3:26 PM EDT | Special Weather Statement | BTV | St. Lawrence | 64 min |
| Jun 26, 3:32 PM EDT | Severe Thunderstorm Warning | BTV | St. Lawrence | 32 min |
| Jun 26, 4:09 PM EDT | Special Weather Statement | BTV | Franklin | 36 min |
| Jun 26, 4:17 PM EDT | Severe Thunderstorm Warning | BTV | Clinton, Essex, Franklin | 45 min |
| Jun 26, 4:53 PM EDT | Severe Thunderstorm Warning | BTV | Clinton, Essex | 52 min |
Nearby
Severe Thunderstorm Warnings in Vermont, 2009Severe Thunderstorm Warnings in New York, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.