Alert archive / Massachusetts / Tornado Warnings in 2011
Tornado Warning 11, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Jul 26, 2011, 4:28 PM EDT for Hampden County, Hampshire County, Massachusetts. It was in force for 47 min. 10 reports 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
- Jul 26, 2011, 4:28 PM EDT (20:28 UTC)
- Expired
- Jul 26, 2011, 5:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Hampden County, MA, Hampshire County, MA
The radar
The Boston radar (KBOX), 108 km from the middle of the area, began a volume at 20:28 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 |
|---|---|---|---|
| Jul 26, 4:30 PM EDT | HAIL 1.75 | Chicopee, MA | GOLF BALL SIZE HAIL |
| Jul 26, 4:33 PM EDT | HAIL 0.75 | Chicopee, MA | 0.75 INCH HAIL REPORTED BY OBSERVER AT CEF. |
| Jul 26, 4:35 PM EDT | TSTM WND DMG | Chicopee, MA | TREES DOWN ON FULLER ROAD AND THE ROUTE 33 AREA. TREES DOWN ON WESTOVER ROAD. HOME DEPOT ON ROUTE 33 HAS A SIGNIFICANT AMOUNT OF DAMAGE TO SHEDS AND DISPLAYS. NO POWER IN THE AREA AND THE STORE IS CLOSED. TREES AND LARGE BRANCHES DOWN ON LEO DRIVE. |
| Jul 26, 4:36 PM EDT | TSTM WND DMG | Chicopee, MA | TREES DOWN ON FULLER ROAD |
| Jul 26, 4:42 PM EDT | TSTM WND DMG | Ludlow, MA | TREES DOWN ACROSS WIRES |
| Jul 26, 4:42 PM EDT | HAIL 1.75 | Ludlow, MA | |
| Jul 26, 4:43 PM EDT | TSTM WND DMG | Wilbraham, MA | MANY TREES DOWN IN TOWN INCLUDING NEAR THE POLICE DEPARTMENT. MAIN STREET SHUT DOWN DUE TO DOWNED TREES. |
| Jul 26, 4:43 PM EDT | HAIL 1 | Wilbraham, MA | |
| Jul 26, 4:55 PM EDT | TSTM WND DMG | Monson, MA | MANY TREES DOWN INCLUDING SOME INTO HOUSES ON WOBURN ROAD AND MAIN STREET. WIRES DOWN ON BOSTON ROAD. |
| Jul 26, 4:55 PM EDT | HAIL 1.25 | Monson, MA | QUARTER TO HALF DOLLAR SIZED HAIL |
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 |
|---|---|---|---|
| Jul 26, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 8.5 hours before the alert went out and 129 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
- 72 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 611 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
384 WFUS51 KBOX 262028 TORBOX MAC013-015-262115- /O.NEW.KBOX.TO.W.0011.110726T2028Z-110726T2115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TAUNTON MA 428 PM EDT TUE JUL 26 2011 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * TORNADO WARNING FOR... EASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS... THIS INCLUDES THE CITY OF CHICOPEE... SOUTH CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... * UNTIL 515 PM EDT * AT 424 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CHICOPEE... MOVING EAST AT 15 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...LUDLOW...WILBRAHAM...PALMER AND MONSON. WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS A TORNADO MAY ALREADY BE ON THE GROUND OR IS EXPECTED TO DEVELOP SHORTLY. TAKE COVER NOW! MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. && LAT...LON 4221 7227 4206 7231 4218 7263 4225 7259 TIME...MOT...LOC 2027Z 284DEG 14KT 4219 7252 $$ NOCERA
3 follow-up statements
783 WWUS51 KBOX 262040 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 440 PM EDT TUE JUL 26 2011 MAC013-015-262115- /O.CON.KBOX.TO.W.0011.000000T0000Z-110726T2115Z/ HAMPSHIRE MA-HAMPDEN MA- 440 PM EDT TUE JUL 26 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR EASTERN HAMPDEN AND EXTREME SOUTHEASTERN HAMPSHIRE COUNTIES... AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR WILBRAHAM...OR NEAR SPRINGFIELD...MOVING EAST AT 20 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PALMER AND MONSON. MANY TREES ARE DOWN IN SPRINGFIELD AND THERE HAVE BEEN REPORTS OF A FUNNEL CLOUD. ALSO ONE INCH HAIL WAS REPORTED IN SPRINGFIELD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. && LAT...LON 4220 7228 4206 7231 4215 7254 4221 7251 TIME...MOT...LOC 2038Z 292DEG 16KT 4213 7245 $$ NOCERA
738 WWUS51 KBOX 262057 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 457 PM EDT TUE JUL 26 2011 MAC015-262106- /O.CAN.KBOX.TO.W.0011.000000T0000Z-110726T2115Z/ HAMPSHIRE MA- 457 PM EDT TUE JUL 26 2011 ...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN HAMPSHIRE COUNTY IS CANCELLED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. LAT...LON 4206 7231 4212 7245 4215 7243 4214 7229 TIME...MOT...LOC 2056Z 292DEG 16KT 4210 7235 $$ MAC013-262115- /O.CON.KBOX.TO.W.0011.000000T0000Z-110726T2115Z/ HAMPDEN MA- 457 PM EDT TUE JUL 26 2011 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR EAST CENTRAL HAMPDEN COUNTY... AT 453 PM EDT...A FUNNEL CLOUD WAS REPORTED NEAR MONSON...OR 9 MILES EAST OF SPRINGFIELD...MOVING EAST AT 20 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. && LAT...LON 4206 7231 4212 7245 4215 7243 4214 7229 TIME...MOT...LOC 2056Z 292DEG 16KT 4210 7235 $$ NOCERA
289 WWUS51 KBOX 262110 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 510 PM EDT TUE JUL 26 2011 MAC013-262120- /O.EXP.KBOX.TO.W.0011.000000T0000Z-110726T2115Z/ HAMPDEN MA- 510 PM EDT TUE JUL 26 2011 ...THE TORNADO WARNING FOR EAST CENTRAL HAMPDEN COUNTY WILL EXPIRE AT 515 PM EDT... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT TUESDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE AND CENTRAL RHODE ISLAND. LAT...LON 4206 7231 4212 7245 4215 7243 4214 7229 TIME...MOT...LOC 2110Z 292DEG 16KT 4208 7227 $$ NOCERA
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 3:13 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire | 62 min |
| Jul 26, 4:09 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire | 66 min |
| Jul 26, 4:10 PM EDT | Special Weather Statement | BOX | Franklin | 65 min |
| Jul 26, 4:14 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire, Worcester | 99 min |
| Jul 26, 4:15 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire | 60 min |
| Jul 26, 4:51 PM EDT | Tornado Warning | BOX | Hampden, Worcester | 39 min |
| Jul 26, 4:52 PM EDT | Severe Thunderstorm Warning | BOX | Hampden | 53 min |
| Jul 26, 4:59 PM EDT | Areal Flood Advisory | BOX | Hampden, Worcester | 98 min |
| Jul 26, 5:26 PM EDT | Areal Flood Advisory | BOX | Worcester | 106 min |
| Jul 26, 5:30 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk, Worcester | 45 min |
| Jul 26, 6:22 PM EDT | Areal Flood Advisory | BOX | Bristol, Middlesex, Norfolk, Worcester | 53 min |
Nearby
Tornado Warnings in Massachusetts, 2011Every tornado warning in 2011Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.