Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 88, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 10, 2012, 5:45 PM EDT for 4 counties in Massachusetts. It was in force for 45 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
- Aug 10, 2012, 5:45 PM EDT (21:45 UTC)
- Expired
- Aug 10, 2012, 6:30 PM EDT
- In force
- 45 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), 100 km from the middle of the area, began a volume at 21:48 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 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
Albany, NY (KALY), launched 12:00Z, 9.8 hours before the alert went out and 136 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
- 209 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 809 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
968 WUUS51 KBOX 102145 SVRBOX MAC011-013-015-027-102230- /O.NEW.KBOX.SV.W.0088.120810T2145Z-120810T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 545 PM EDT FRI AUG 10 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS... EASTERN HAMPDEN COUNTY IN WESTERN MASSACHUSETTS... SOUTHEASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... * UNTIL 630 PM EDT * AT 541 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MONSON...OR 9 MILES EAST OF SPRINGFIELD...AND WAS MOVING NORTHEAST AT 35 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...BRIMFIELD...PALMER... WARREN...WARE...WEST BROOKFIELD...NORTH BROOKFIELD...NEW BRAINTREE...HARDWICK...OAKHAM...BARRE AND PETERSHAM. 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 4254 7225 4242 7196 4203 7225 4204 7252 TIME...MOT...LOC 2145Z 205DEG 32KT 4215 7234 $$ WTB
2 follow-up statements
488 WWUS51 KBOX 102222 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 622 PM EDT FRI AUG 10 2012 MAC011-013-015-027-102230- /O.CON.KBOX.SV.W.0088.000000T0000Z-120810T2230Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA-HAMPDEN MA- 622 PM EDT FRI AUG 10 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR EASTERN HAMPDEN...SOUTHEASTERN HAMPSHIRE...SOUTHEASTERN FRANKLIN AND WEST CENTRAL WORCESTER COUNTIES... AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BARRE...OR 18 MILES EAST OF AMHERST...MOVING NORTHEAST AT 35 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PETERSHAM THIS STORM IS DIMINISHING...BUT STILL DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND. && LAT...LON 4254 7225 4242 7196 4203 7225 4204 7252 TIME...MOT...LOC 2222Z 205DEG 32KT 4245 7215 $$ WTB
538 WWUS51 KBOX 102232 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 632 PM EDT FRI AUG 10 2012 MAC011-013-015-027-102242- /O.EXP.KBOX.SV.W.0088.000000T0000Z-120810T2230Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA-HAMPDEN MA- 632 PM EDT FRI AUG 10 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HAMPDEN...SOUTHEASTERN HAMPSHIRE...SOUTHEASTERN FRANKLIN AND WEST CENTRAL WORCESTER COUNTIES HAS EXPIRED... A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY EVENING FOR NORTHERN CONNECTICUT AND MASSACHUSETTS AND CENTRAL RHODE ISLAND. LAT...LON 4254 7225 4242 7196 4203 7225 4204 7252 TIME...MOT...LOC 2222Z 205DEG 32KT 4245 7215 $$ WTB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 11:52 AM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire | 6 hr |
| 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, 3:36 PM EDT | Areal Flood Advisory | BOX | Bristol, Hampden, Hampshire, Middlesex, Norfolk, Plymouth and 2 more | 2 hr |
| Aug 10, 4:45 PM EDT | Special Marine Warning | BOX | 30 min | |
| Aug 10, 4:45 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 45 min |
| Aug 10, 5:00 PM EDT | Tornado Warning | BOX | Hampden, Hampshire | 45 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, 5:31 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 44 min |
| Aug 10, 5:33 PM EDT | Severe Thunderstorm Warning | BOX | Bristol | 27 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
Severe Thunderstorm Warnings in Massachusetts, 2012Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.