Alert archive / Connecticut / Tornado Warnings in 2012
Tornado Warning 5, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this tornado warning at Aug 10, 2012, 5:00 PM EDT for Capitol Planning Region, Connecticut; Hampden County, Hampshire County, Massachusetts. It was in force for 45 min. 4 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
- Aug 10, 2012, 5:00 PM EDT (21:00 UTC)
- Expired
- Aug 10, 2012, 5:45 PM EDT
- In force
- 45 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Capitol Planning Region, CT, Hampden County, MA, Hampshire County, MA
The radar
The Boston radar (KBOX), 107 km from the middle of the area, began a volume at 21:01 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 |
|---|---|---|---|
| Aug 10, 5:06 PM EDT | TSTM WND DMG | Vernon, CT | BRANCHES DOWN ON VERNON CIRCLE. |
| Aug 10, 5:07 PM EDT | TSTM WND DMG | Rockville, CT | SEVERAL LARGE LIMBS DOWN ON UNION STREET |
| Aug 10, 5:18 PM EDT | TSTM WND DMG | Vernon, CT | TREES AND WIRES DOWN ON CHAMBERLAIN AND UNION STREETS. |
| Aug 10, 5:25 PM EDT | TSTM WND DMG | Ellington, CT | TREE LIMBS DOWN ON RTE 140 NEAR BASEBALL FIELDS. |
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 |
|---|---|---|---|
| Aug 10, 3:31 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.0 hours before the alert went out and 135 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
- 1737 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
332 WFUS51 KBOX 102100 TORBOX CTC003-013-MAC013-015-102145- /O.NEW.KBOX.TO.W.0005.120810T2100Z-120810T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TAUNTON MA 500 PM EDT FRI AUG 10 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN HARTFORD COUNTY IN NORTHERN CONNECTICUT... NORTHWESTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT... THIS INCLUDES THE CITY OF VERNON... EASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS... EXTREME SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... * UNTIL 545 PM EDT * AT 458 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR VERNON... MOVING NORTH AT 30 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...ELLINGTON...SOMERS...EAST LONGMEADOW...HAMPDEN...MONSON...WILBRAHAM...LUDLOW AND PALMER. WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS ROTATION HAS BEEN NOTED ABOVE THE GROUND AND HAS THE POTENTIAL TO EXTEND TO THE SURFACE. 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND. && LAT...LON 4221 7248 4215 7219 4179 7242 4183 7259 TIME...MOT...LOC 2059Z 198DEG 26KT 4186 7248 $$ WTB
1 follow-up statement
175 WWUS51 KBOX 102125 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 525 PM EDT FRI AUG 10 2012 CTC003-013-MAC013-015-102145- /O.CON.KBOX.TO.W.0005.000000T0000Z-120810T2145Z/ HARTFORD CT-TOLLAND CT-HAMPSHIRE MA-HAMPDEN MA- 525 PM EDT FRI AUG 10 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR EASTERN HAMPDEN...EXTREME SOUTHEASTERN HAMPSHIRE...NORTHWESTERN TOLLAND AND NORTHEASTERN HARTFORD COUNTIES... AT 519 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR SOMERS...OR 10 MILES NORTH OF VERNON...MOVING NORTH AT 25 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAST LONGMEADOW...HAMPDEN...WILBRAHAM...PALMER...MONSON AND LUDLOW THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS IN GLASTONBURY...VERNON...AND ROCKVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS ROTATION HAS BEEN NOTED ABOVE THE GROUND AND HAS THE POTENTIAL TO EXTEND TO THE SURFACE. TAKE COVER NOW! MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4221 7248 4215 7219 4179 7242 4183 7259 TIME...MOT...LOC 2122Z 195DEG 21KT 4197 7245 $$ WTB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 11:52 AM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 6 hr |
| Aug 10, 3:10 PM EDT | Special Weather Statement | BOX | 50 min | |
| Aug 10, 3:36 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 2 hr |
| Aug 10, 4:00 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 45 min |
| Aug 10, 4:22 PM EDT | Tornado Warning | BOX | Capitol Planning Region | 38 min |
| Aug 10, 4:45 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 45 min |
| Aug 10, 4:56 PM EDT | Flash Flood Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 2 hr |
| Aug 10, 4:57 PM EDT | Flash Flood Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 2 hr |
| Aug 10, 5:31 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 44 min |
| Aug 10, 4:31 AM EDT | Small Craft Advisory | BOX | 3 days | |
| Aug 10, 10:57 AM EDT | Special Weather Statement | BOX | Hampshire | 63 min |
| Aug 10, 11:07 AM EDT | Special Weather Statement | BOX | Hampshire | 53 min |
| Aug 10, 11:35 AM EDT | Special Weather Statement | BOX | Hampden | 55 min |
| Aug 10, 11:40 AM EDT | Special Weather Statement | BOX | Franklin | 65 min |
| Aug 10, 11:45 AM EDT | Special Weather Statement | BOX | Franklin | 60 min |
| Aug 10, 12:29 PM EDT | Special Weather Statement | BOX | Hampshire | 61 min |
| Aug 10, 1:15 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire | 30 min |
| Aug 10, 2:29 PM EDT | Special Weather Statement | BOX | Worcester | 61 min |
| Aug 10, 3:13 PM EDT | Special Marine Warning | BOX | 92 min | |
| Aug 10, 4:45 PM EDT | Special Marine Warning | BOX | 30 min | |
| Aug 10, 5:03 PM EDT | Special Marine Warning | BOX | 87 min | |
| Aug 10, 5:09 PM EDT | Flash Flood Warning | BOX | Bristol, Plymouth | 3 hr |
| Aug 10, 5:16 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 59 min |
| Aug 10, 5:20 PM EDT | Special Marine Warning | BOX | 25 min | |
| Aug 10, 5:27 PM EDT | Flash Flood Warning | BOX | Franklin, Hampden, Hampshire, Middlesex, Norfolk, Suffolk and 1 more | 3 hr |
| Aug 10, 5:33 PM EDT | Severe Thunderstorm Warning | BOX | Bristol | 27 min |
| Aug 10, 5:45 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 45 min |
| Aug 10, 5:47 PM EDT | Special Weather Statement | BOX | Middlesex | 43 min |
| Aug 10, 5:55 PM EDT | Flash Flood Warning | BOX | Essex | 3 hr |
| Aug 10, 6:08 PM EDT | Special Marine Warning | BOX | 52 min | |
| Aug 10, 6:23 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Middlesex, Norfolk, Plymouth, Suffolk | 37 min |
| Aug 10, 6:46 PM EDT | Special Weather Statement | BOX | Bristol | 44 min |
| Aug 10, 7:45 PM EDT | Special Marine Warning | BOX | 30 min |
Nearby
Tornado Warnings in Connecticut, 2012Tornado Warnings in Massachusetts, 2012Every tornado warning in 2012Tornadoes in 2012
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.