Alert archive / Rhode Island / Flash Flood Warnings in 2021
Flash Flood Warning 7, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 17, 2021, 4:06 PM EDT for Kent County, Providence County, Rhode Island. It was in force for 4 hr. 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
- Jul 17, 2021, 4:06 PM EDT (20:06 UTC)
- Expired
- Jul 17, 2021, 8:18 PM EDT
- In force
- 4 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Kent County, RI, Providence County, RI
The radar
The Boston radar (KBOX), 32 km from the middle of the area, began a volume at 20:09 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 |
|---|---|---|---|
| Jul 17, 6:24 PM EDT | FLOOD | Providence, RI | EDDY STREET BETWEEN NEBRASKA STREET AND PAVILLION AVE FLOODED AND IMPASSABLE |
| Jul 17, 6:30 PM EDT | FLOOD | Providence, RI | FALLON AVE FLOODED AND IMPASSABLE |
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 12:00Z, 8.1 hours before the alert went out and 157 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
- 1203 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
The text
As transmitted.
770
WGUS51 KBOX 172006
FFWBOX
RIC003-007-172315-
/O.NEW.KBOX.FF.W.0007.210717T2006Z-210717T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boston/Norton MA
406 PM EDT Sat Jul 17 2021
The National Weather Service in Norton has issued a
* Flash Flood Warning for...
Northeastern Kent County in Rhode Island...
Southeastern Providence County in Rhode Island...
* Until 715 PM EDT.
* At 406 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Providence, Warwick, Cranston, East Providence, West Warwick,
Johnston, Barrington and Scituate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4175 7156 4183 7141 4177 7134 4177 7133
4175 7135 4174 7135 4174 7134 4172 7134
4172 7132 4172 7131 4172 7130 4166 7138
4170 7147
FLASH FLOOD...RADAR INDICATED
$$
BL5 follow-up statements
822
WGUS71 KBOX 172038
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
438 PM EDT Sat Jul 17 2021
RIC003-007-172315-
/O.CON.KBOX.FF.W.0007.000000T0000Z-210717T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent RI-Providence RI-
438 PM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT THIS
EVENING FOR NORTHEASTERN KENT AND SOUTHEASTERN PROVIDENCE COUNTIES...
At 438 PM EDT, at 417 PM trained spotters reported up to a foot of
water on Reservoir Avenue in Cranston, RI. Between 1 and 3 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Trained spotters reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Providence, Warwick, Cranston, East Providence, West Warwick,
Johnston, Barrington and Scituate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4175 7156 4183 7141 4177 7134 4177 7133
4175 7135 4174 7135 4174 7134 4172 7134
4172 7132 4172 7131 4172 7130 4166 7138
4170 7147
FLASH FLOOD...OBSERVED
$$
BL327
WGUS71 KBOX 172209
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
609 PM EDT Sat Jul 17 2021
RIC003-007-172315-
/O.CON.KBOX.FF.W.0007.000000T0000Z-210717T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent RI-Providence RI-
609 PM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM EDT THIS
EVENING FOR NORTHEASTERN KENT AND SOUTHEASTERN PROVIDENCE COUNTIES...
At 609 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 3 inches of rain have
fallen. Additional rainfall amounts up to 0.5 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Providence, Warwick, Cranston, East Providence, West Warwick,
Johnston, Barrington and Scituate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4175 7156 4183 7141 4181 7139 4177 7134
4176 7134 4176 7135 4175 7135 4175 7138
4174 7137 4173 7138 4172 7135 4171 7134
4170 7136 4168 7138 4171 7146
FLASH FLOOD...RADAR INDICATED
$$
BL691
WGUS51 KBOX 172247
FFWBOX
RIC003-007-180045-
/O.EXT.KBOX.FF.W.0007.000000T0000Z-210718T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boston/Norton MA
647 PM EDT Sat Jul 17 2021
The National Weather Service in Norton has extended the
* Flash Flood Warning for...
Northeastern Kent County in Rhode Island...
Southeastern Providence County in Rhode Island...
* Until 845 PM EDT.
* At 647 PM EDT, trained weather spotters reported the intersection
of Chalkstone Avenue and Raymond Street in Providence, RI being
flooded at 604 PM. Between 1 and 3 inches of rain have fallen.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Trained spotters reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Providence, Warwick, Cranston, East Providence, West Warwick,
Johnston, Barrington and Scituate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4175 7156 4183 7141 4181 7139 4177 7134
4176 7134 4176 7135 4175 7135 4175 7138
4174 7137 4173 7138 4172 7135 4171 7134
4170 7136 4168 7138 4171 7146
FLASH FLOOD...OBSERVED
$$
BL563
WGUS71 KBOX 172301 RRA
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
701 PM EDT Sat Jul 17 2021
RIC003-007-180045-
/O.CON.KBOX.FF.W.0007.000000T0000Z-210718T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent RI-Providence RI-
701 PM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT THIS
EVENING FOR NORTHEASTERN KENT AND SOUTHEASTERN PROVIDENCE COUNTIES...
At 701 PM EDT, trained weather spotters reported the intersection of
Chalkstone Avenue and Raymond Street in Providence, RI being flooded
at 604 PM. Between 1 and 3 inches of rain have fallen. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Trained spotters reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Providence, Warwick, Cranston, East Providence and Barrington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4179 7148 4183 7141 4181 7139 4177 7134
4176 7134 4176 7135 4175 7135 4175 7138
4174 7138 4172 7138 4171 7136 4170 7136
4172 7143
FLASH FLOOD...OBSERVED
$$
BL146
WGUS71 KBOX 180018 RRA
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
818 PM EDT Sat Jul 17 2021
RIC003-007-180028-
/O.CAN.KBOX.FF.W.0007.000000T0000Z-210718T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kent RI-Providence RI-
818 PM EDT Sat Jul 17 2021
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN KENT AND
SOUTHEASTERN PROVIDENCE COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4179 7148 4183 7141 4181 7139 4177 7134
4176 7134 4176 7135 4175 7135 4175 7138
4174 7138 4172 7138 4171 7136 4170 7136
4172 7143
$$
BLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 2:14 PM EDT | Special Weather Statement | BOX | Bristol | 46 min |
| Jul 17, 2:39 PM EDT | Areal Flood Warning | BOX | Kent, Providence | 111 min |
| Jul 17, 2:46 PM EDT | Special Weather Statement | BOX | Providence | 44 min |
| Jul 17, 2:53 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 52 min |
| Jul 17, 3:26 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 64 min |
| Jul 17, 3:36 PM EDT | Areal Flood Warning | BOX | Kent, Providence | 114 min |
| Jul 17, 4:29 PM EDT | Severe Thunderstorm Warning | BOX | Kent, Providence | 61 min |
| Jul 17, 5:30 PM EDT | Flash Flood Warning | BOX | Providence | 3 hr |
| Jul 17, 5:49 PM EDT | Special Weather Statement | BOX | Bristol | 41 min |
| Jul 17, 6:05 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Kent, Providence | 26 min |
Nearby
Flash Flood Warnings in Rhode Island, 2021Every flash flood warning in 2021
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.