Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 13, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at May 8, 2024, 8:10 PM EDT for Barnstable County, Bristol County, Plymouth County, Massachusetts. It was in force for 50 min. 2 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
- May 8, 2024, 8:10 PM EDT (00:10 UTC)
- Expired
- May 8, 2024, 9:00 PM EDT
- In force
- 50 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
Counties Barnstable County, MA, Bristol County, MA, Plymouth County, MA
The radar
The Boston radar (KBOX), 63 km from the middle of the area, began a volume at 00:12 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 |
|---|---|---|---|
| May 8, 8:19 PM EDT | HAIL 1.25 | Woods Hole, MA | Time estimated from radar. |
| May 8, 8:20 PM EDT | HAIL 1.25 | Woods Hole, MA | Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.2 hours before the alert went out and 206 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
- 399 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 1645 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted.
574
WUUS51 KBOX 090010
SVRBOX
MAC001-005-023-090100-
/O.NEW.KBOX.SV.W.0013.240509T0010Z-240509T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
810 PM EDT Wed May 8 2024
The National Weather Service in Boston/Norton has issued a
* Severe Thunderstorm Warning for...
Southwestern Barnstable County in southeastern Massachusetts...
South central Plymouth County in southeastern Massachusetts...
Southeastern Bristol County in southeastern Massachusetts...
* Until 900 PM EDT.
* At 809 PM EDT, a severe thunderstorm was located near Fairhaven, or
9 miles south of Marion, moving east at 35 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* Locations impacted include...
Barnstable, Falmouth, Marion, Tisbury, Yarmouth, Wareham, Sandwich,
Bourne, Fairhaven, Dennis, Mashpee, Mattapoisett, Rochester,
Gosnold, and Hyannis.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4159 7023 4158 7026 4160 7034 4151 7059
4147 7055 4148 7073 4151 7070 4151 7072
4148 7077 4149 7087 4155 7071 4165 7068
4155 7087 4174 7086 4175 7021
TIME...MOT...LOC 0009Z 280DEG 29KT 4158 7080
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
Frank1 follow-up statement
379
WWUS51 KBOX 090032
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
832 PM EDT Wed May 8 2024
MAC005-023-090042-
/O.CAN.KBOX.SV.W.0013.000000T0000Z-240509T0100Z/
Plymouth MA-Bristol MA-
832 PM EDT Wed May 8 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PLYMOUTH AND
SOUTHEASTERN BRISTOL COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4159 7023 4158 7026 4160 7034 4151 7058
4147 7055 4148 7060 4148 7073 4150 7070
4151 7073 4151 7071 4152 7071 4153 7056
4159 7056 4159 7053 4168 7043 4175 7021
TIME...MOT...LOC 0032Z 278DEG 31KT 4151 7044
$$
MAC001-090100-
/O.CON.KBOX.SV.W.0013.000000T0000Z-240509T0100Z/
Barnstable MA-
832 PM EDT Wed May 8 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR SOUTH CENTRAL BARNSTABLE COUNTY...
At 832 PM EDT, a severe thunderstorm was located 7 miles south of
Mashpee, or 8 miles northeast of Oak Bluffs, moving east at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Barnstable, Falmouth, Tisbury, Yarmouth, Dennis, Mashpee, Gosnold,
and Hyannis.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4159 7023 4158 7026 4160 7034 4151 7058
4147 7055 4148 7060 4148 7073 4150 7070
4151 7073 4151 7071 4152 7071 4153 7056
4159 7056 4159 7053 4168 7043 4175 7021
TIME...MOT...LOC 0032Z 278DEG 31KT 4151 7044
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
FrankThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 8:03 PM EDT | Special Marine Warning | BOX | 41 min | |
| May 8, 8:12 PM EDT | Special Marine Warning | BOX | 63 min | |
| May 8, 8:34 PM EDT | Special Marine Warning | BOX | 56 min | |
| May 8, 9:47 PM EDT | Severe Thunderstorm Warning | BOX | Bristol | 28 min |
| May 8, 9:48 PM EDT | Special Marine Warning | BOX | 35 min | |
| May 8, 9:50 PM EDT | Special Marine Warning | BOX | 40 min | |
| May 8, 10:25 PM EDT | Special Marine Warning | BOX | 50 min | |
| May 9, 6:08 PM EDT | Small Craft Advisory | BOX | 34 hr |
Nearby
Severe Thunderstorm Warnings in Massachusetts, 2024Every severe thunderstorm warning in 2024
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.