Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 21, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 15, 2018, 8:16 PM EDT for Providence County, Rhode Island; Worcester County, Massachusetts. It was in force for 33 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
- Jul 15, 2018, 8:16 PM EDT (00:16 UTC)
- Expired
- Jul 15, 2018, 8:49 PM EDT
- In force
- 33 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Worcester County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 48 km from the middle of the area, began a volume at 00:19 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, 0.3 hours before the alert went out and 150 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
- 84 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 792 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
678
WUUS51 KBOX 160016
SVRBOX
MAC027-RIC007-160100-
/O.NEW.KBOX.SV.W.0021.180716T0016Z-180716T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
816 PM EDT SUN JUL 15 2018
The National Weather Service in Boston/Norton has issued a
* Severe Thunderstorm Warning for...
Southeastern Worcester County in central Massachusetts...
Northwestern Providence County in Rhode Island...
* Until 900 PM EDT.
* At 816 PM EDT, a severe thunderstorm was located over Douglas, or
11 miles southwest of Milford, moving south at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is possible. Expect damage to
trees and power lines.
* Locations impacted include...
Burrillville, Northbridge, Uxbridge, North Smithfield, Sutton,
Douglas and Upton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4214 7177 4215 7160 4198 7159 4196 7177
TIME...MOT...LOC 0016Z 354DEG 23KT 4208 7171
HAIL...1.00IN
WIND...60MPH
$$
Frank2 follow-up statements
863 WWUS51 KBOX 160035 SVSBOX Severe Weather Statement National Weather Service Boston/Norton MA 835 PM EDT SUN JUL 15 2018 MAC027-RIC007-160100- /O.CON.KBOX.SV.W.0021.000000T0000Z-180716T0100Z/ Worcester MA-Providence RI- 835 PM EDT SUN JUL 15 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT FOR SOUTHEASTERN WORCESTER AND NORTHWESTERN PROVIDENCE COUNTIES... At 834 PM EDT, a severe thunderstorm was located near Douglas, or 10 miles west of Woonsocket, moving south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Burrillville, Uxbridge, North Smithfield and Douglas. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4208 7177 4210 7160 4198 7159 4196 7177 TIME...MOT...LOC 0034Z 353DEG 12KT 4202 7170 HAIL...<.75IN WIND...60MPH $$ Frank
985
WWUS51 KBOX 160049
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
849 PM EDT SUN JUL 15 2018
MAC027-RIC007-160059-
/O.CAN.KBOX.SV.W.0021.000000T0000Z-180716T0100Z/
Worcester MA-Providence RI-
849 PM EDT SUN JUL 15 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WORCESTER AND
NORTHWESTERN PROVIDENCE COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
LAT...LON 4208 7177 4210 7160 4198 7159 4196 7177
TIME...MOT...LOC 0046Z 354DEG 23KT 4192 7169
$$
FrankThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 1:24 PM EDT | Special Weather Statement | BOX | Worcester | 51 min |
| Jul 16, 3:07 PM EDT | Small Craft Advisory | BOX | 32 hr | |
| Jul 16, 3:33 PM EDT | Special Weather Statement | BOX | Norfolk | 42 min |
Nearby
Severe Thunderstorm Warnings in Rhode Island, 2018Severe Thunderstorm Warnings in Massachusetts, 2018Every severe thunderstorm warning in 2018
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.