Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 112, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Aug 14, 2016, 8:43 PM EDT for Norfolk County, Massachusetts. It was in force for 12 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 14, 2016, 8:43 PM EDT (00:43 UTC)
- Expired
- Aug 14, 2016, 8:55 PM EDT
- In force
- 12 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Norfolk County, MA
The radar
The Boston radar (KBOX), 20 km from the middle of the area, began a volume at 00:43 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
Chatham, MA (KCHH), launched 00:00Z, 0.7 hours before the alert went out and 115 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
- 2038 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.4
The text
As transmitted.
133 WUUS51 KBOX 150043 SVRBOX MAC021-150145- /O.NEW.KBOX.SV.W.0112.160815T0043Z-160815T0145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA 843 PM EDT SUN AUG 14 2016 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS... * UNTIL 945 PM EDT * AT 842 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM NORWOOD TO NEAR FOXBOROUGH TO WRENTHAM...MOVING EAST AT 35 MPH. HAZARD...60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. * LOCATIONS IMPACTED INCLUDE... FRANKLIN...NORWOOD...STOUGHTON...WALPOLE...CANTON...SHARON... FOXBOROUGH...WESTWOOD...MEDFIELD...NORFOLK... WRENTHAM AND PLAINVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4214 7108 4203 7129 4208 7137 4221 7130 TIME...MOT...LOC 0042Z 270DEG 30KT 4218 7120 4209 7126 4203 7137 HAIL...<.75IN WIND...60MPH $$ SIPPRELL
1 follow-up statement
337
WWUS51 KBOX 150055 RRA
SVSBOX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
855 PM EDT SUN AUG 14 2016
MAC021-150105-
/O.CAN.KBOX.SV.W.0112.000000T0000Z-160815T0145Z/
NORFOLK MA-
855 PM EDT SUN AUG 14 2016
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NORFOLK COUNTY IS
CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA. THEREFORE...THE WARNING HAS
BEEN CANCELLED.
LAT...LON 4214 7108 4203 7129 4208 7137 4221 7130
TIME...MOT...LOC 0054Z 270DEG 30KT 4218 7106 4209 7112 4203 7123
$$
SIPPRELLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:08 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Suffolk, Worcester | 52 min |
| Aug 14, 8:15 PM EDT | Special Marine Warning | BOX | 90 min | |
| Aug 14, 8:42 PM EDT | Special Weather Statement | BOX | Norfolk | 48 min |
| Aug 15, 3:30 PM EDT | Small Craft Advisory | BOX | 52 hr |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2016Every severe thunderstorm warning in 2016
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.