Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 57, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Jul 18, 2012, 4:57 PM EDT for Providence County, Rhode Island. It was in force for 13 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 18, 2012, 4:57 PM EDT (20:57 UTC)
- Expired
- Jul 18, 2012, 5:10 PM EDT
- In force
- 13 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
County Providence County, RI
The radar
The Boston radar (KBOX), 41 km from the middle of the area, began a volume at 20:57 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 |
|---|---|---|---|
| Jul 18, 12:20 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 9.0 hours before the alert went out and 141 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
- 1521 J/kg
- Mixed-layer CIN
- -208 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
265 WUUS51 KBOX 182057 SVRBOX RIC007-182145- /O.NEW.KBOX.SV.W.0057.120718T2057Z-120718T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TAUNTON MA ISSUED BY NATIONAL WEATHER SERVICE NEW YORK NY 457 PM EDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN PROVIDENCE COUNTY IN RHODE ISLAND... * UNTIL 545 PM EDT... * AT 449 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR BURRILLVILLE...OR 9 MILES EAST OF PUTNAM... AND MOVING EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... NORTH SMITHFIELD BY 510 PM... WOONSOCKET AND LINCOLN BY 520 PM... CUMBERLAND BY 525 PM... NORTH OF CENTRAL FALLS BY 530 PM... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND STRONG WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4193 7180 4200 7180 4201 7138 4185 7139 TIME...MOT...LOC 2057Z 268DEG 22KT 4197 7167 $$ JST
1 follow-up statement
248 WWUS51 KBOX 182110 SVSBOX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA ISSUED BY NATIONAL WEATHER SERVICE NEW YORK NY 510 PM EDT WED JUL 18 2012 RIC007-182120- /O.CAN.KBOX.SV.W.0057.000000T0000Z-120718T2145Z/ PROVIDENCE RI- 510 PM EDT WED JUL 18 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN PROVIDENCE COUNTY IS CANCELLED... THE STORM HAS WEAKENED. LAT...LON 4193 7180 4200 7180 4201 7138 4185 7139 TIME...MOT...LOC 2110Z 268DEG 22KT 4197 7156 $$ JST
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 12:41 PM EDT | Heat Advisory | BOX | Kent, Providence | 6 hr |
| Jul 18, 2:24 PM EDT | Flash Flood Warning | BOX | Kent, Providence | 3 hr |
| Jul 18, 2:44 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 61 min |
| Jul 18, 3:09 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 51 min |
| Jul 18, 3:46 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Kent, Newport, Providence, Washington | 59 min |
Nearby
Severe Thunderstorm Warnings in Rhode Island, 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.