Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 70, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 5, 2012, 3:03 PM EDT for Franklin County, Hampshire County, Worcester County, 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
- Aug 5, 2012, 3:03 PM EDT (19:03 UTC)
- Expired
- Aug 5, 2012, 3:45 PM EDT
- In force
- 42 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
Counties Franklin County, MA, Hampshire County, MA, Worcester County, MA
The radar
The Boston radar (KBOX), 108 km from the middle of the area, began a volume at 19:06 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 12:00Z, 7.1 hours before the alert went out and 133 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
- 520 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 694 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
541 WUUS51 KBOX 051903 SVRBOX MAC011-015-027-051945- /O.NEW.KBOX.SV.W.0070.120805T1903Z-120805T1945Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 303 PM EDT SUN AUG 5 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS... SOUTHEASTERN FRANKLIN COUNTY IN WESTERN MASSACHUSETTS... EAST CENTRAL HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS... THIS INCLUDES THE CITY OF AMHERST... * UNTIL 345 PM EDT * AT 257 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 PELHAM AND AMHERST...AND WAS MOVING NORTHEAST AT 30 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE...SHUTESBURY...NEW SALEM... PETERSHAM...BARRE...ATHOL...PHILLIPSTON...HUBBARDSTON AND TEMPLETON. 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 4268 7211 4251 7193 4226 7243 4239 7255 TIME...MOT...LOC 1902Z 232DEG 27KT 4238 7240 $$ WTB
1 follow-up statement
023 WWUS51 KBOX 051918 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 318 PM EDT SUN AUG 5 2012 MAC011-015-027-051945- /O.CON.KBOX.SV.W.0070.000000T0000Z-120805T1945Z/ WORCESTER MA-FRANKLIN MA-HAMPSHIRE MA- 318 PM EDT SUN AUG 5 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT FOR EAST CENTRAL HAMPSHIRE...SOUTHEASTERN FRANKLIN AND NORTHWESTERN WORCESTER COUNTIES... AT 314 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR NEW SALEM...OR 12 MILES EAST OF AMHERST...MOVING NORTHEAST AT 30 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PETERSHAM...BARRE...ATHOL...PHILLIPSTON...HUBBARDSTON AND TEMPLETON LAT...LON 4268 7211 4251 7193 4226 7243 4239 7255 TIME...MOT...LOC 1918Z 232DEG 27KT 4245 7227 $$ WTB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 4:03 AM EDT | Flash Flood Watch | BOX | Franklin, Hampden, Hampshire | 19 hr |
| Aug 5, 4:08 AM EDT | Small Craft Advisory | BOX | 27 hr | |
| Aug 5, 2:02 PM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 58 min |
| Aug 5, 3:33 PM EDT | Special Weather Statement | BOX | Worcester | 57 min |
| Aug 5, 4:20 PM EDT | Severe Thunderstorm Warning | BOX | Hampden | 40 min |
| Aug 5, 4:38 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 47 min |
| Aug 5, 5:05 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 40 min |
| Aug 5, 5:30 PM EDT | Special Marine Warning | BOX | 51 min | |
| Aug 5, 5:46 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 29 min |
| Aug 5, 7:52 PM EDT | Special Weather Statement | BOX | Hampden | 83 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.