Alert archive / Massachusetts / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 461
The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2000, 1:00 PM EDT for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2000, 1:00 PM EDT (17:00 UTC)
- Expired
- Jun 17, 2000, 7:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Berkshire County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Suffolk County, MA, Worcester County, MA, Androscoggin County, ME, Cumberland County, ME, Kennebec County, ME, Lincoln County, ME, Oxford County, ME, Sagadahoc County, ME, Waldo County, ME, York County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH, Sullivan County, NH, Columbia County, NY, Rensselaer County, NY, Bennington County, VT, Orange County, VT, Windham County, VT, Windsor County, VT
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 2:46 PM EDT | Severe Thunderstorm Warning | GYX | Cumberland, York | 29 min |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 5.0 hours before the alert went out and 149 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
- 773 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
923 WWUS9 KMKC 171632 SEL1 MKC WW 171632 MAZ000-MEZ000-NHZ000-NYZ000-VTZ000-CWZ000-172300- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 461 STORM PREDICTION CENTER NORMAN OK 1232 PM EDT SAT JUN 17 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF MASSACHUSETTS SOUTHWEST MAINE NEW HAMPSHIRE EASTERN NEW YORK EASTERN VERMONT COASTAL WATERS EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 100 PM UNTIL 700 PM EDT. HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH SOUTHWEST OF WESTFIELD MASSACHUSETTS TO 30 MILES NORTHWEST OF AUGUSTA MAINE. 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. DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE THIS AFTERNOON ALONG COLD FRONT AS AIR WARM SECTOR AIR MASS CONTINUES TO DESTABILIZE WITH DAYTIME HEATING. ALTHOUGH TEMPERATURES ARE WARM ALOFT...MODERATE INSTABILITY AND 30-40 KT MID LEVEL WLY FLOW WILL PROMOTE DAMAGING OUTFLOW WINDS THROUGH THIS AFTERNOON. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 27030. ...VESCIO 443,0683 420,0711 420,0742 443,0715
Nearby
Severe Thunderstorm Watches in Massachusetts, 2000Severe Thunderstorm Watches in New Hampshire, 2000Severe Thunderstorm Watches in Maine, 2000Every severe thunderstorm watch in 2000
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.