Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 61, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 8, 2011, 5:18 AM EDT for 4 counties in Massachusetts. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2011, 5:18 AM EDT (09:18 UTC)
- Expired
- Jul 8, 2011, 6:00 AM EDT
- In force
- 42 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Franklin County, MA, Hampden County, MA, Hampshire County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 98 km from the middle of the area, began a volume at 09:22 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
Albany, NY (KALY), launched 00:00Z, 9.3 hours before the alert went out and 138 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1993 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
421 WUUS51 KBOX 080918 SVRBOX MAC011-013-015-027-081000- /O.NEW.KBOX.SV.W.0061.110708T0918Z-110708T1000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 518 AM EDT FRI JUL 8 2011 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... EXTREME SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS... CENTRAL HAMPDEN COUNTY IN WESTERN MASSACHUSETTS... THIS INCLUDES THE CITY OF CHICOPEE... SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... * UNTIL 600 AM EDT * AT 517 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR GRANBY...OR 6 MILES NORTHEAST OF CHICOPEE... AND WAS MOVING EAST AT 35 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...BELCHERTOWN...WARE... WARREN...HARDWICK...WEST BROOKFIELD...NEW BRAINTREE...BROOKFIELD... NORTH BROOKFIELD...EAST BROOKFIELD...SPENCER AND OAKHAM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL...AS WELL AS DEADLY LIGHTNING AND TORRENTIAL RAIN. GET TO SAFE SHELTER NOW... INSIDE A STURDY BUILDING OR IN A VEHICLE. DO NOT SEEK SHELTER UNDER TREES. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. DRIVERS SHOULD BE ALERT FOR PONDING OF WATER AND AVOID FLOODED ROADS. && LAT...LON 4241 7201 4216 7198 4216 7259 4228 7259 TIME...MOT...LOC 0918Z 261DEG 28KT 4224 7249 $$ SIPPRELL
2 follow-up statements
192 WWUS51 KBOX 080936 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 536 AM EDT FRI JUL 8 2011 MAC011-013-015-027-081000- /O.CON.KBOX.SV.W.0061.000000T0000Z-110708T1000Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA-HAMPDEN MA- 536 AM EDT FRI JUL 8 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM EDT FOR EAST CENTRAL HAMPDEN...SOUTHEASTERN HAMPSHIRE...EXTREME SOUTHEASTERN FRANKLIN AND WEST CENTRAL WORCESTER COUNTIES... AT 532 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR BELCHERTOWN...OR 12 MILES SOUTHEAST OF AMHERST...MOVING EAST AT 30 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WARE... WARREN...HARDWICK...WEST BROOKFIELD...NEW BRAINTREE...BROOKFIELD... NORTH BROOKFIELD...EAST BROOKFIELD...SPENCER AND OAKHAM PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4232 7241 4241 7201 4216 7198 4216 7241 TIME...MOT...LOC 0936Z 261DEG 28KT 4226 7230 $$ SIPPRELL
762 WWUS51 KBOX 080958 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 558 AM EDT FRI JUL 8 2011 MAC011-013-015-027-081006- /O.EXP.KBOX.SV.W.0061.000000T0000Z-110708T1000Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA-HAMPDEN MA- 558 AM EDT FRI JUL 8 2011 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HAMPDEN... SOUTHEASTERN HAMPSHIRE...EXTREME SOUTHEASTERN FRANKLIN AND WEST CENTRAL WORCESTER COUNTIES WILL EXPIRE AT 600 AM EDT... THOUGH THE STORM HAS WEAKENED ACROSS THE WARNED AREA...SMALL HAIL ALONG WITH FREQUENT LIGHTNING AND GUSTY WINDS IS STILL POSSIBLE. LAT...LON 4232 7241 4241 7201 4216 7198 4216 7241 TIME...MOT...LOC 0956Z 261DEG 28KT 4227 7209 $$ SIPPRELL
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 5:03 AM EDT | Special Weather Statement | BOX | Hampshire | 42 min |
| Jul 8, 6:00 AM EDT | Special Weather Statement | BOX | Worcester | 45 min |
| Jul 8, 6:34 AM EDT | Special Weather Statement | BOX | Worcester | 56 min |
| Jul 8, 6:41 AM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 38 min |
| Jul 8, 7:02 AM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk, Worcester | 34 min |
| Jul 8, 7:34 AM EDT | Special Weather Statement | BOX | Norfolk | 41 min |
| Jul 8, 8:07 AM EDT | Special Weather Statement | BOX | Plymouth | 53 min |
| Jul 8, 8:20 AM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth | 3 hr |
| Jul 8, 8:34 AM EDT | Areal Flood Advisory | BOX | Bristol | 71 min |
| Jul 8, 8:39 AM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 66 min |
| Jul 8, 8:57 AM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 27 min |
| Jul 8, 9:12 AM EDT | Areal Flood Advisory | BOX | Barnstable, Bristol, Plymouth | 2 hr |
| Jul 8, 9:50 AM EDT | Special Marine Warning | BOX | 25 min | |
| Jul 8, 10:09 AM EDT | Special Weather Statement | BOX | Barnstable | 66 min |
| Jul 8, 10:43 AM EDT | Areal Flood Advisory | BOX | Barnstable | 94 min |
| Jul 8, 11:06 AM EDT | Special Marine Warning | BOX | 54 min | |
| Jul 8, 11:53 AM EDT | Special Marine Warning | BOX | 67 min |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2011Every severe thunderstorm warning in 2011
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.