A few severe thunderstorms in the late afternoon were focused mainly on the sea breeze convergence in northern Rhode Island and southeastern Massachusetts.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BOX wrote it up.
A few severe thunderstorms in the late afternoon were focused mainly on the sea breeze convergence in northern Rhode Island and southeastern Massachusetts.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before the first event at Aug 22, 3:28 PM EST, 42 minutes earlier.
Area Forecast Discussion National Weather Service Boston/Norton MA 428 PM EDT Sat Aug 22 2020 .SYNOPSIS... Warm and humid conditions continue Sunday and into early next week. Mainly diurnally driven thunderstorms are expected thru Tuesday, though the majority of the time will be dry. Somewhat cooler and less humid weather arrives by Wednesday, but this may end up short- lived. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... 415 PM Update... Short wave trough moving across northern New England into southeast Quebec providing sufficient synoptic scale lift combined with 500- 1000 ML CAPE to support scattered thunderstorms with locally strong to damaging winds, large hail and very heavy rainfall with PWATs up to 1.5 inches. Best low level convergence is across CT/RI and south of the MA Pike especially southeast MA with seabreeze boundaries. Thus this will be the area of focus for convection the next several hours. As sunset approaches and instability wanes along with mean trough axis moving offshore and subtle height rises occurring over SNE, convection will dissipate and give way to quiet late evening weather. No frontal passage or airmass change tonight, so a warm and humid night with lows in the 60s, possibly a few upper 50s in northwest MA and the I495 corridor of MA such as OWD. Dew pts in the 60s combined with rainfall from today's storms and light winds/clearing skies will likely result in patchy fog overnight. Also watching area of stratus/fog across western Gulf of ME. This low level moisture is advecting westward and may impact eastern MA especially Cape Cod overnight. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/... 430 PM update... Sunday... Warm and humid airmass remains over the region with 850 mb temps around +16C and model soundings indicate mixing to about 800 mb. This should support another round of high temps from the upper 80s to low 90s away from the coastal seabreezes. It's likely KBDL ties its summer record of 38 days of 90+ heat set back in 1983! We are forecasting a high of 92. It will feel very summer-ish with dew pts in the 60s to near 70 along the south coast. These dew pts and warm temps will yield heat indices tomorrow in the mid 90s! Not worthy of an advisory but nonetheless hot conditions tomorrow. Any morning low clouds/fog will quickly burn off and give way to lots of sunshine. Weak pressure gradient tomorrow offers very little wind but will promote cooling seabreezes near shore. Just like today, these seabreezes may provide a focus tomorrow for convection especially northeast MA. As for convection, modest short wave/mid level speed max moves across northern New England. This may be sufficient to fire off storms especially across northern MA. Severe parameters somewhat out of phase with greatest instability over CT/RI and southeast MA with MU CAPEs up to 2000 j/kg. However strongest forcing for ascent farther north. HREF focusing northeast MA for potential big storms. Wind fields aloft are weak but may be sufficient CAPE to compensate so strong winds, hail and heavy rain (PWATs up to 1.8 inches) are the main concerns. Sunday night... Any early evening showers/T-storms will dissipate with sunset giving way to quiet but warm and humid weather overnight with dew pts 65- 70. Light SW winds. && .LONG TERM /MONDAY THROUGH SATURDAY/... Highlights * Showers and thunderstorms Monday and into Tuesday. Muggy and warm conditions as highs reach near 90 degrees on both days. * Comfortable and dry mid-week. Becoming cooler than normal and unsettled late weekend into next weekend. Monday afternoon through Tuesday night... Warm and muggy conditions return to southern New England for the start of the week. 850 mb temperatures are forecasted to reach +16C to +19C ... which is between +4C to +5C above normal for late August. Given the anomalous 850 mb temperatures both days, surface high temperatures could make a run for the middle and upper 80; a few location might reach 90 degrees. Additionally, dewpoints will also make a resurgence into the upper 60s to lower 70s. The climatological average for late August are dewpoints in the low 60s for a reference point. Above normal dewpoints combined with warm surface temperatures could make it feel like the mid-90s. Southern New England will lay between a ridge of high pressure to our south and a low pressure trough to the north. Monday afternoon sct'd thunderstorms are likely, surface based CAPE is forecasted between 1,300 J/kg and 1,900 J/kg and modest mid-level lapse rates above +7C/km. Mid-level lapse rates on Tuesday mimic Monday, but, surface based CAPE is forecasted between 800 J/kg and 1,300 J/kg. Additionally, heavy downpours would be likely on Monday as PWAT values range between 1.50" and 2.00". Wednesday through Saturday... A break from the heat and humidity for mid-week with temperatures on either side of 80 degrees and wicked sweet dewpoints in the upper-40s inland and close to lower-60s at the coast. Wednesday appears to be the driest day out of next week as high pressure shifts east. Chances for showers and storms returns on Thursday and Friday. At this point it doesn't appear to be a washout. Temperatures late into next week will remain in the upper-70s to low-80s and dewpoints in the low-60s. Next weekend there remains uncertainty as tropical remnants move off the mid-Atlantic coast. Additionally, the models are also hinting at come cooler conditions with afternoon highs struggling to reach the lower 70s for the final weekend of August. && .AVIATION /21Z SATURDAY THROUGH THURSDAY/... Forecaster Confidence Levels... Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. 18z update... Thru 00z...high confidence. Scattered T-storms with marginal MVFR/VFR. A few strong storms with wind gusts to 50 kt, large hail and frequent lightning. Otherwise VFR with light WSW winds except local seabreezes. After 00z...High confidence in the evening but low confidence overnight in low cloud potential. Any showers/storms coming to an end. VFR initially, but low risk of MVFR to IFR stratus advecting into eastern MA/RI terminals. LIFR conditions cannot be ruled out at Cape Cod and the Islands. Light S/SW winds. Sunday...High confidence. Any stratus/fog to burn off early to VFR conditions. Iso to Sct afternoon TSRA possible but mixed signals on storm coverage. Storms may be more numerous over northern portions of MA/CT/RI. Regardless less coverage than today and not and intensity less. SW winds 5-10 kt, locally stronger/breezy near the Cape where models show a low-level jet that could produce afternoon gusts in the low 20s kt range. Sunday night...high confidence. Any evening storms diminish shortly after sunset. Otherwise VFR with local MVFR/IFR in patchy fog overnight. Light winds. KBOS Terminal...High confidence in TAF. Scattered storms will threaten the airspace of KBOS thru about 00z with strong winds, large hail and frequent lightning. Improving conditions after 00z. Low clouds over the Gulf of Maine may threaten the airport overnight but more likely impact Cape Cod. KBDL Terminal...High confidence in TAF. Outlook /Monday through Thursday/... Monday: VFR. Chance SHRA, chance TSRA. Monday Night: VFR. Slight chance SHRA. Tuesday: VFR. Breezy. Chance SHRA, chance TSRA. Tuesday Night through Wednesday: VFR. Breezy. Wednesday Night: VFR. Slight chance SHRA. Thursday: VFR. Chance SHRA. && .MARINE... Tonight...light winds with evening storms over the southern MA and RI waters dissipating with sunset. Patchy fog overnight limiting vsby. More widespread fog possible eastern MA waters as stratus/fog currently over western Gulf of Maine advects westward toward MA. Sunday...light winds. Any morning fog burns off by midday. Another round of storms likely but this time probably focused across the northern MA waters. Sunday night...evening storms dissipate with sunset. Patchy fog likely. SW Light winds. Outlook /Monday through Thursday/... Monday: Winds less than 25 kt. Slight chance of rain showers, slight chance of thunderstorms, patchy fog. Monday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers, patchy fog. Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers, slight chance of thunderstorms, patchy fog. Tuesday Night: Winds less than 25 kt. Seas up to 5 ft. Wednesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Wednesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers. Thursday: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...None. && SYNOPSIS...Nocera/Gaucher NEAR TERM...Nocera SHORT TERM...Nocera LONG TERM...Gaucher AVIATION...Nocera/Gaucher MARINE...Nocera/Gaucher
Hazardous Weather Outlook National Weather Service Boston/Norton MA 422 PM EDT Sat Aug 22 2020 CTZ002>004-MAZ002>024-026-RIZ001>008-232030- Hartford CT-Tolland CT-Windham CT-Western Franklin MA- Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA- Western Essex MA-Eastern Essex MA-Western Hampshire MA- Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA- Southern Worcester MA-Western Norfolk MA-Southeast Middlesex MA- Suffolk MA-Eastern Norfolk MA-Northern Bristol MA- Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA- Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA- Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI- Washington RI-Newport RI-Block Island RI- 422 PM EDT Sat Aug 22 2020 This Hazardous Weather Outlook is for northern Connecticut, all of Massachusetts east of Berkshire County, and Rhode Island. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230>237-250-251-254>256-232030- Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound- Buzzards Bay-Rhode Island Sound-Narragansett Bay-Block Island Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 422 PM EDT Sat Aug 22 2020 This Hazardous Weather Outlook is for Massachusetts and Rhode Island coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. For more information on upcoming hazardous weather, please see the Area Forecast Discussion on our webpage for the latest forecast thinking. There is also our Enhanced Hazardous Weather Outlook at www.weather.gov/box/ehwo For the latest updates...please visit our webpage at www.weather.gov/boston You can follow us on Facebook at www.facebook.com/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
310 PM EDT SAT AUG 22 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
TREES DOWN ON SPAULDING STREET.
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
UTILITY POLE AND LINES DOWN ON SPAULDING STREET.
1042 AM TSTM WND DMG PEPPERELL 42.67N 71.59W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
LARGE TREE DOWN AT RIVER AND ELM STREET.
1222 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREE DOWN ON WIRES AT 146 NORTH STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREES DOWN ON WIRES AT 50 ADAMS STREET.
1240 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA FIRE DEPT/RESCUE
TREE DOWN ON NORTH ST
0106 PM TSTM WND DMG BROCKTON 42.08N 71.03W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON FAIRVIEW AVE AT TORREY STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON WIRES AT WEST UNION AND EMERALD STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
WIRES DOWN ON SPEAR AVE
0240 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON PEARL ST
0249 PM TSTM WND DMG WHITMAN 42.08N 70.93W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON ESSEX ST AT PLYMOUTH ST
&&
EVENT NUMBER BOX2001893 BOX2001895 BOX2001894 BOX2001896 BOX2001897
BOX2001903 BOX2001898 BOX2001899 BOX2001900 BOX2001901 BOX2001902
RCPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
320 PM EDT SAT AUG 22 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
TREES DOWN ON SPAULDING STREET.
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
UTILITY POLE AND LINES DOWN ON SPAULDING STREET.
1042 AM TSTM WND DMG PEPPERELL 42.67N 71.59W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
LARGE TREE DOWN AT RIVER AND ELM STREET.
1222 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREE DOWN ON WIRES AT 146 NORTH STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREES DOWN ON WIRES AT 50 ADAMS STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA FIRE DEPT/RESCUE
TREE DOWN ON NORTH ST
0106 PM TSTM WND DMG BROCKTON 42.08N 71.03W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON FAIRVIEW AVE AT TORREY STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON WIRES AT WEST UNION AND EMERALD STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
WIRES DOWN ON SPEAR AVE
0240 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON PEARL ST
0249 PM TSTM WND DMG WHITMAN 42.08N 70.93W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON ESSEX ST AT PLYMOUTH ST
&&
EVENT NUMBER BOX2001893 BOX2001895 BOX2001894 BOX2001896 BOX2001897
BOX2001903 BOX2001898 BOX2001899 BOX2001900 BOX2001901 BOX2001902
RCPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
324 PM EDT SAT AUG 22 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
TREES DOWN ON SPAULDING STREET.
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
UTILITY POLE AND LINES DOWN ON SPAULDING STREET.
1042 AM TSTM WND DMG PEPPERELL 42.67N 71.59W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
LARGE TREE DOWN AT RIVER AND ELM STREET.
1222 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREE DOWN ON WIRES AT 146 NORTH STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREES DOWN ON WIRES AT 50 ADAMS STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA FIRE DEPT/RESCUE
TREE DOWN ON NORTH ST
0106 PM TSTM WND DMG BROCKTON 42.08N 71.03W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON FAIRVIEW AVE AT TORREY STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON WIRES AT WEST UNION AND EMERALD STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
WIRES DOWN ON SPEAR AVE
0240 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON PEARL ST
0249 PM TSTM WND DMG WHITMAN 42.08N 70.93W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON ESSEX ST AT PLYMOUTH ST
0305 PM HAIL PEMBROKE 42.07N 70.80W
08/22/2020 M0.75 INCH PLYMOUTH MA AMATEUR RADIO
&&
EVENT NUMBER BOX2001893 BOX2001895 BOX2001894 BOX2001896 BOX2001897
BOX2001903 BOX2001898 BOX2001899 BOX2001900 BOX2001901 BOX2001902
BOX2001904
RCPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
429 PM EDT SAT AUG 22 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
TREES DOWN ON SPAULDING STREET.
1038 AM TSTM WND DMG TOWNSEND 42.67N 71.70W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
UTILITY POLE AND LINES DOWN ON SPAULDING STREET.
1042 AM TSTM WND DMG PEPPERELL 42.67N 71.59W
08/22/2020 MIDDLESEX MA AMATEUR RADIO
LARGE TREE DOWN AT RIVER AND ELM STREET.
1222 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREE DOWN ON WIRES AT 146 NORTH STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA AMATEUR RADIO
TREES DOWN ON WIRES AT 50 ADAMS STREET.
1225 PM TSTM WND DMG MEDFIELD 42.19N 71.30W
08/22/2020 NORFOLK MA FIRE DEPT/RESCUE
TREE DOWN ON NORTH ST
0106 PM TSTM WND DMG BROCKTON 42.08N 71.03W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON FAIRVIEW AVE AT TORREY STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON WIRES AT WEST UNION AND EMERALD STREET.
0122 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
WIRES DOWN ON SPEAR AVE
0240 PM TSTM WND DMG EAST BRIDGEWATER 42.03N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON PEARL ST
0249 PM TSTM WND DMG WHITMAN 42.08N 70.93W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN ON ESSEX ST AT PLYMOUTH ST
0305 PM HAIL PEMBROKE 42.07N 70.80W
08/22/2020 M0.75 INCH PLYMOUTH MA AMATEUR RADIO
0402 PM TSTM WND DMG WEST BRIDGEWATER 42.02N 71.00W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
WIRES DOWN ON SOUTH ELM ST
0402 PM TSTM WND DMG WEST BRIDGEWATER 42.02N 71.00W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREES AND WIRES DOWN ON A CAR ON SOUTH ELM AT SCOTLAND
ST
0410 PM HAIL MIDDLEBOROUGH 41.90N 70.93W
08/22/2020 M1.00 INCH PLYMOUTH MA TRAINED SPOTTER
0413 PM TSTM WND DMG BRIDGEWATER 41.99N 70.97W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREES AND WIRES DOWN BLOCKING ROAD ON UNION ST FROM
PLEASANT ST TO MOUNT PLEASANT ST
0419 PM HAIL MIDDLEBOROUGH 41.90N 70.93W
08/22/2020 M1.00 INCH PLYMOUTH MA PUBLIC
0419 PM TSTM WND DMG LAKEVILLE 41.85N 70.95W
08/22/2020 PLYMOUTH MA AMATEUR RADIO
TREE DOWN BLOCKING ROAD ON BOND ST AT MAIN ST
&&
EVENT NUMBER BOX2001893 BOX2001895 BOX2001894 BOX2001896 BOX2001897
BOX2001903 BOX2001898 BOX2001899 BOX2001900 BOX2001901 BOX2001902
BOX2001904 BOX2001908 BOX2001909 BOX2001910 BOX2001907 BOX2001905
BOX2001906
RCSpecial Weather Statement
National Weather Service Boston/Norton MA
443 PM EDT Sat Aug 22 2020
CTZ004-MAZ017-020-RIZ001>007-222130-
Windham CT-Southern Bristol MA-Northern Bristol MA-
Northwest Providence RI-Bristol RI-Washington RI-Western Kent RI-
Eastern Kent RI-Newport RI-Southeast Providence RI-
443 PM EDT Sat Aug 22 2020
...LINE OF STRONG THUNDERSTORMS APPROACHING NORTHERN RHODE ISLAND
AND SOUTHERN BRISTOL COUNTY IN MASSACHUSETTS...
At 442 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Warwick to near Foster. Movement was
southeast at 25 mph.
Pea size hail and winds in excess of 40 mph will accompany these
storms.
Locations impacted include...
Providence, Fall River, Warwick, Cranston, East Providence, Coventry,
Dartmouth, North Providence, West Warwick, Johnston, North Kingstown,
Bristol, Somerset, Portsmouth, Killingly, Barrington, Middletown,
Swansea, Tiverton and Westport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when these storms approach. Winds may be strong enough to
produce minor damage, such as a few downed branches.
Frequent lightning was occurring. Lightning can strike far away from
the storm. Go inside a building or vehicle. Wait at least 30 minutes
until after the storm has passed to resume outdoor activities.
&&
LAT...LON 4151 7120 4162 7123 4152 7123 4153 7132
4164 7125 4168 7128 4158 7133 4179 7137
4178 7139 4165 7136 4169 7145 4155 7143
4153 7134 4154 7139 4155 7153 4189 7197
4185 7140 4154 7093 4152 7095
TIME...MOT...LOC 2042Z 305DEG 22KT 4174 7145 4177 7178
ChaiSpecial Weather Statement
National Weather Service Boston/Norton MA
502 PM EDT Sat Aug 22 2020
CTZ004-MAZ020-021-RIZ001>007-222145-
Windham CT-Southern Bristol MA-Southern Plymouth MA-
Northwest Providence RI-Bristol RI-Washington RI-Western Kent RI-
Eastern Kent RI-Newport RI-Southeast Providence RI-
502 PM EDT Sat Aug 22 2020
...CLUSTER OF STRONG THUNDERSTORMS IN FAR EASTERN CONNECTICUT AND
RHODE ISLAND...
At 501 PM EDT, Doppler radar was tracking a strong thunderstorm over
Fall River, moving east at 30 mph.
Pea size hail and winds in excess of 40 mph will accompany this
storm. Torrential rainfall also expected.
Locations impacted include...
Providence, New Bedford, Fall River, Warwick, Cranston, East
Providence, Coventry, Dartmouth, West Warwick, Johnston, North
Kingstown, Bristol, Plainfield, Somerset, Portsmouth, Killingly,
Barrington, Fairhaven, Swansea and Tiverton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.
&&
LAT...LON 4162 7127 4171 7116 4173 7122 4170 7124
4172 7127 4167 7124 4164 7129 4168 7128
4163 7131 4166 7137 4164 7141 4171 7202
4187 7205 4170 7080 4163 7087 4158 7085
4165 7092 4159 7090 4158 7094
TIME...MOT...LOC 2101Z 284DEG 39KT 4173 7113
FrankThe Boston radar (KBOX), 46 km away, was scanning. The volume nearest the first event began at 21:08 UTC.
1 thunderstorm wind. Local standard time, as filed.
In Scituate, trees were down on Tunk Hill Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Rhode Island in 2020Every state in 2020This day in weather historyWarnings in Rhode Island, August 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 916106.