Alert archive / Massachusetts / Tornado Warnings in 2010
Tornado Warning 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Jul 19, 2010, 7:07 PM EDT for Worcester County, Massachusetts. It was in force for 38 min. 3 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 19, 2010, 7:07 PM EDT (23:07 UTC)
- Expired
- Jul 19, 2010, 7:45 PM EDT
- In force
- 38 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Worcester County, MA
The radar
The Boston radar (KBOX), 93 km from the middle of the area, began a volume at 23:10 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 19, 7:36 PM EDT | TSTM WND DMG | Westminster, MA | WIRES DOWN ON WYMAN ROAD WITH POWER OUTAGES. |
| Jul 19, 7:51 PM EDT | HAIL 1.75 | Leominster, MA | GOLF BALL SIZED HAIL. |
| Jul 19, 7:52 PM EDT | TSTM WND DMG | Fitchburg, MA | WIRES DOWN ON MOUNT ELAF ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 11.1 hours before the alert went out and 159 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
- 1527 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
422 WFUS51 KBOX 192307 TORBOX MAC027-192345- /O.NEW.KBOX.TO.W.0003.100719T2307Z-100719T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TAUNTON MA 707 PM EDT MON JUL 19 2010 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... THIS INCLUDES THE CITIES OF...LEOMINSTER...FITCHBURG... * UNTIL 745 PM EDT * AT 705 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES NORTHWEST OF GARDNER...OR 12 MILES SOUTH OF JAFFREY...MOVING SOUTHEAST AT 25 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...WESTMINSTER. 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. && LAT...LON 4256 7169 4244 7185 4263 7216 4269 7208 TIME...MOT...LOC 2307Z 302DEG 22KT 4264 7207 $$ EKSTER
2 follow-up statements
947 WWUS51 KBOX 192319 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 719 PM EDT MON JUL 19 2010 MAC027-192345- /O.CON.KBOX.TO.W.0003.000000T0000Z-100719T2345Z/ WORCESTER MA- 719 PM EDT MON JUL 19 2010 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR NORTH CENTRAL WORCESTER COUNTY... AT 714 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR GARDNER...OR 12 MILES WEST OF FITCHBURG...MOVING SOUTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WESTMINSTER...PRINCETON AND LEOMINSTER PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. && LAT...LON 4253 7174 4244 7185 4262 7212 4267 7202 TIME...MOT...LOC 2319Z 307DEG 22KT 4259 7201 $$ MEKSTER
523 WWUS51 KBOX 192333 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 733 PM EDT MON JUL 19 2010 MAC027-192345- /O.CON.KBOX.TO.W.0003.000000T0000Z-100719T2345Z/ WORCESTER MA- 733 PM EDT MON JUL 19 2010 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR NORTH CENTRAL WORCESTER COUNTY... AT 732 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR WESTMINSTER...OR 6 MILES WEST OF FITCHBURG...MOVING SOUTHEAST AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LEOMINSTER PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. && LAT...LON 4258 7205 4262 7194 4253 7174 4244 7185 TIME...MOT...LOC 2333Z 304DEG 23KT 4256 7193 $$ MLE
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 3:52 AM EDT | Small Craft Advisory for Hazardous Seas | BOX | 49 hr | |
| Jul 19, 10:50 AM EDT | Special Marine Warning | BOX | 55 min | |
| Jul 19, 11:25 AM EDT | Severe Thunderstorm Warning | BOX | Bristol | 47 min |
| Jul 19, 11:43 AM EDT | Special Marine Warning | BOX | 62 min | |
| Jul 19, 11:57 AM EDT | Special Weather Statement | BOX | Bristol | 63 min |
| Jul 19, 12:27 PM EDT | Special Marine Warning | BOX | 63 min | |
| Jul 19, 1:12 PM EDT | Special Weather Statement | BOX | Barnstable | 48 min |
| Jul 19, 1:24 PM EDT | Special Marine Warning | BOX | 66 min | |
| Jul 19, 2:25 PM EDT | Special Marine Warning | BOX | 65 min | |
| Jul 19, 6:35 PM EDT | Special Weather Statement | BOX | Franklin | 25 min |
| Jul 19, 6:47 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 43 min |
| Jul 19, 7:26 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 49 min |
| Jul 19, 7:43 PM EDT | Tornado Warning | BOX | Worcester | 47 min |
Nearby
Tornado Warnings in Massachusetts, 2010Every tornado warning in 2010Tornadoes in 2010
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.