Alert archive / Massachusetts / Flash Flood Warnings in 2018
Flash Flood Warning 24, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 12, 2018, 10:11 AM EDT for Essex County, Middlesex County, Massachusetts. It was in force for 4 hr. 34 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
- Aug 12, 2018, 10:11 AM EDT (14:11 UTC)
- Expired
- Aug 12, 2018, 2:15 PM EDT
- In force
- 4 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Essex County, MA, Middlesex County, MA
The radar
The Boston radar (KBOX), 65 km from the middle of the area, began a volume at 14:10 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 |
|---|---|---|---|
| Aug 12, 10:12 AM EDT | FLASH FLOOD | Salem, MA | HIGHLAND AVE NEAR WALMART IS NOW IMPASSABLE DUE TO FLOODING. |
| Aug 12, 10:16 AM EDT | FLASH FLOOD | Lynn, MA | CARS FLOATING IN STREET ON MONROE STREET |
| Aug 12, 10:18 AM EDT | FLASH FLOOD | Lynn, MA | WATER RISING IN BUILDING ON MONROE STREET. PEOPLE ARE STANDING ON CHAIRS IN THE BUILDING DUE TO THE FLOODING. |
| Aug 12, 10:18 AM EDT | FLASH FLOOD | Peabody, MA | WALNUT STREET CLOSED DUE TO FLOODING |
| Aug 12, 10:22 AM EDT | FLASH FLOOD | Lynnfield, MA | RIGHT LANE CLOSED ON ROUTE 1 SOUTH DUE TO FLOODING IN THE LYNNFIELD TUNNEL |
| Aug 12, 10:22 AM EDT | FLASH FLOOD | Salem, MA | SECTION OF THE OKEEFE PARKING LOT IS FLOODED AT SALEM STATE COLLEGE |
| Aug 12, 10:29 AM EDT | FLASH FLOOD | Peabody, MA | MAJOR STREETING FLOODING ON GOODDALE STREET |
| Aug 12, 10:31 AM EDT | FLASH FLOOD | Lynn, MA | CAR STUCK IN FLOOD WATERS ON CHATHAM STREET UNDER BRIDGE. ROAD IS IMPASSABLE. |
| Aug 12, 10:36 AM EDT | FLASH FLOOD | Peabody, MA | SPRING STREET CLOSED DUE TO FLOODING |
| Aug 12, 10:41 AM EDT | FLASH FLOOD | Peabody, MA | OAK STREET CLOSED DUE TO FLOODING. CAR STUCK IN THE PARKING LOT OF ELKS CLUB. |
| Aug 12, 10:42 AM EDT | FLASH FLOOD | Peabody, MA | HOWLEY STREET NEAR THE PROCTOR BOOK, TRAIN TRACKS ARE FLOODED. WATER LEVEL IS 6 INCHES BELOW BRIDGE. |
| Aug 12, 10:42 AM EDT | FLASH FLOOD | Peabody, MA | TREMONT AND FOSTER STREET CLOSED DUE TO FLOODING WITH CARS STUCK IN FLOOD WATERS. |
| Aug 12, 10:47 AM EDT | FLASH FLOOD | Peabody, MA | 1 FOOT OF STREET FLOODING ON ENDICOTT STREET |
| Aug 12, 10:48 AM EDT | FLASH FLOOD | Peabody, MA | NEARLY 2 FEET OF WATER ON WALNUT STREET. TWO CARS ARE STUCK IN THE FLOOD WATERS. |
| Aug 12, 10:50 AM EDT | FLASH FLOOD | Lynnfield, MA | CARS STUCK IN FLOOD WATERS ON ROUTE 1 NORTH BY CHRISTMAS TREE SHOP |
| Aug 12, 11:02 AM EDT | FLASH FLOOD | Peabody, MA | MARGIN STREET BY SHELDON STREET FLOODED AND CLOSED |
| Aug 12, 11:03 AM EDT | FLASH FLOOD | Lynn, MA | THE BASEMENT DOOR TO A BUILDING ON UNION STREET HAS COLLAPSED DUE TO FLOODING AND WATER IS POURING IN. |
| Aug 12, 11:06 AM EDT | FLASH FLOOD | Lynn, MA | FOX HILL BRIDGE IS CLOSED DUE TO FLOODING |
| Aug 12, 11:18 AM EDT | FLASH FLOOD | Lynn, MA | LARGE SECTIONS OF BOSTON STREET ARE FLOODED AND IMPASSABLE WITH MULTIPLE CARS STUCK IN FLOOD WATERS. |
| Aug 12, 11:32 AM EDT | FLASH FLOOD | Lynn, MA | ROUTE 107 ON THE LYNN AND SALEM BORDER IS CLOSED DUE TO FLOODING |
| Aug 12, 11:33 AM EDT | FLASH FLOOD | Peabody, MA | QUAILL ROAD IS CLOSED DUE TO FLOODING. WATER APPROACHING HOUSES ON ROAD. |
| Aug 12, 11:51 AM EDT | HEAVY RAIN 8.14 | Lynn, MA | |
| Aug 12, 11:52 AM EDT | FLASH FLOOD | Peabody, MA | LYNNFIELD STREET CLOSED DUE TO FLOODING. |
| Aug 12, 11:56 AM EDT | HEAVY RAIN 7.81 | Peabody, MA | |
| Aug 12, 11:58 AM EDT | FLASH FLOOD | Salem, MA | THE AREA IN FRONT OF SALEM HOSPITAL IS CLOSED DUE TO FLOODING. SALEM HOSPITAL IS ON DIVERSION SINCE IT IS NOT ACCESSIBLE. |
| Aug 12, 11:59 AM EDT | FLASH FLOOD | Lynn, MA | MANHOLE COVERS OFF ON SEYMOUR STREET |
| Aug 12, 12:07 PM EDT | FLASH FLOOD | Peabody, MA | CAR STUCK IN FLOOD WATERS ON LYNNFIELD STREET |
| Aug 12, 12:14 PM EDT | FLASH FLOOD | Peabody, MA | CAR STUCK IN FLOOD WATERS ON LAKE STREET AT ROUTE 1 |
| Aug 12, 12:15 PM EDT | FLASH FLOOD | Peabody, MA | A FOOT OF WATER ON ROSE CIRCLE |
| Aug 12, 12:17 PM EDT | FLASH FLOOD | Peabody, MA | LAKE STREET IS CLOSED DUE TO FLOODING |
| Aug 12, 12:33 PM EDT | FLASH FLOOD | Peabody, MA | HOUSE ON BATCHELDER AVE HAS 4 FEET OF WATER IN BASEMENT |
| Aug 12, 12:39 PM EDT | FLASH FLOOD | Lynn, MA | CAR STUCK IN 3 FEET OF WATER ON WILFRED STREET. ROAD IMPASSABLE. |
| Aug 12, 12:42 PM EDT | FLASH FLOOD | Lynn, MA | SEVERAL FEET OF STREET FLOODING ON ERIE STREET |
| Aug 12, 12:45 PM EDT | HEAVY RAIN 3.28 | Wakefield, MA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Chatham, MA (KCHH), launched 12:00Z, 2.2 hours before the alert went out and 124 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
- 206 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 790 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
708 WGUS51 KBOX 121411 FFWBOX MAC009-017-121615- /O.NEW.KBOX.FF.W.0024.180812T1411Z-180812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Boston/Norton MA 1011 AM EDT SUN AUG 12 2018 The National Weather Service in Boston/Norton has issued a * Flash Flood Warning for... South central Essex County in northeastern Massachusetts... Eastern Middlesex County in northeastern Massachusetts... * Until 1215 PM EDT. * At 1010 AM EDT Doppler radar indicated thunderstorms producing heavy rain across the warned area. Over four inches of rain has already fallen in Lynn. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Lynn, Peabody, Salem, Beverly, North Andover, Saugus, Danvers, Wakefield, Reading, Stoneham, Marblehead, North Reading, Swampscott, Lynnfield, Middleton, Boxford, Hamilton, Topsfield, Manchester and Wenham. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding will occur quickly, and could be life threatening for those who try to drive through flooded roads or underpasses. Find alternate routes. Those near small streams need to get to higher ground immediately. && LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/EVT
5 follow-up statements
887 WGUS71 KBOX 121425 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 1025 AM EDT SUN AUG 12 2018 MAC009-017-121615- /O.CON.KBOX.FF.W.0024.000000T0000Z-180812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Essex MA-Middlesex MA- 1025 AM EDT SUN AUG 12 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT FOR SOUTH CENTRAL ESSEX AND EASTERN MIDDLESEX COUNTIES... At 1024 AM EDT, trained weather spotters reported flash flooding in Lynn and Peabody. Five inches of rain has fallen. Flash flooding is already occurring. Some locations that will experience flooding include... Lynn, Peabody, Salem, Beverly, North Andover, Saugus, Danvers, Wakefield, Reading, Stoneham, Marblehead, North Reading, Swampscott, Lynnfield, Middleton, Boxford, Hamilton, Topsfield, Manchester and Wenham. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. && LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/EVT
899 WGUS71 KBOX 121518 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 1118 AM EDT SUN AUG 12 2018 MAC009-017-121615- /O.CON.KBOX.FF.W.0024.000000T0000Z-180812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Essex MA-Middlesex MA- 1118 AM EDT SUN AUG 12 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT FOR SOUTH CENTRAL ESSEX AND EASTERN MIDDLESEX COUNTIES... At 1115 AM EDT, trained weather spotters reported flash flooding in Lynn and Peabody. Over seven inches of rain have fallen in Lynn. Some locations that will experience flooding include... Lynn, Peabody, Salem, Beverly, North Andover, Saugus, Danvers, Wakefield, Reading, Stoneham, Marblehead, North Reading, Swampscott, Lynnfield, Middleton, Boxford, Hamilton, Topsfield, Manchester and Wenham. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a very dangerous situation. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other drainage areas and low lying spots. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. && LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/WTB
677 WGUS51 KBOX 121603 FFWBOX MAC009-017-121815- /O.EXT.KBOX.FF.W.0024.000000T0000Z-180812T1815Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Boston/Norton MA 1203 PM EDT SUN AUG 12 2018 The National Weather Service in Boston/Norton has extended the * Flash Flood Warning for... South central Essex County in northeastern Massachusetts... Eastern Middlesex County in northeastern Massachusetts... * Until 215 PM EDT. * At 1201 PM EDT trained weather spotters reported flash flooding across the warned area. Over eight inches of rain have fallen in Lynn, and seven inches in Peabody. Flooding has been reported in Salem. * Some locations that will experience flooding include... Lynn, Peabody, Salem, Beverly, North Andover, Saugus, Danvers, Wakefield, Reading, Stoneham, Marblehead, North Reading, Swampscott, Lynnfield, Middleton, Boxford, Hamilton, Topsfield, Manchester and Wenham. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding will occur quickly and could become life threatening for those who try to drive through flooded roads or underpasses. Find alternate routes and avoid flooded areas. && LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/WTB
683 WGUS71 KBOX 121722 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 122 PM EDT SUN AUG 12 2018 MAC009-017-121815- /O.CON.KBOX.FF.W.0024.000000T0000Z-180812T1815Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Essex MA-Middlesex MA- 122 PM EDT SUN AUG 12 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR SOUTH CENTRAL ESSEX AND EASTERN MIDDLESEX COUNTIES... At 117 PM EDT, heavy rain has ended across the area, but this remains a very dangerous situation due to high flood waters. Over eight inches of rain has fallen in Lynn, and seven inches in Peabody. Some locations that will experience flooding include... Lynn, Peabody, Salem, Beverly, North Andover, Saugus, Danvers, Wakefield, Reading, Stoneham, Marblehead, North Reading, Swampscott, Lynnfield, Middleton, Boxford, Hamilton, Topsfield, Manchester and Wenham. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/WTB
210 WGUS71 KBOX 121819 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 219 PM EDT SUN AUG 12 2018 MAC009-017-121828- /O.EXP.KBOX.FF.W.0024.000000T0000Z-180812T1815Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Essex MA-Middlesex MA- 219 PM EDT SUN AUG 12 2018 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL ESSEX AND EASTERN MIDDLESEX COUNTIES HAS EXPIRED... The heavy rain has ended. Flood waters will continue to subside. Please continue to heed any remaining road closures. LAT...LON 4243 7092 4249 7109 4267 7104 4261 7074 $$ LEC/WTB
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:32 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk | 58 min |
| Aug 11, 8:45 PM EDT | Areal Flood Advisory | BOX | Essex, Franklin, Hampshire, Middlesex, Worcester | 2 hr |
| Aug 11, 10:33 PM EDT | Areal Flood Advisory | BOX | Franklin, Worcester | 117 min |
| Aug 12, 12:24 AM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 2 hr |
| Aug 12, 2:36 AM EDT | Areal Flood Advisory | BOX | Bristol | 54 min |
| Aug 12, 2:51 AM EDT | Coastal Flood Advisory | BOX | Barnstable, Essex, Nantucket, Norfolk, Plymouth, Suffolk | 24 hr |
| Aug 12, 5:07 AM EDT | Special Marine Warning | BOX | 53 min | |
| Aug 12, 6:31 AM EDT | Areal Flood Advisory | BOX | Essex, Middlesex, Norfolk, Suffolk | 59 min |
| Aug 12, 7:46 AM EDT | Areal Flood Advisory | BOX | Essex, Middlesex, Suffolk | 59 min |
| Aug 12, 8:15 AM EDT | Areal Flood Advisory | BOX | Bristol, Plymouth | 60 min |
| Aug 12, 8:46 AM EDT | Areal Flood Advisory | BOX | Essex, Middlesex, Suffolk | 119 min |
| Aug 12, 9:53 AM EDT | Areal Flood Warning | BOX | Essex | 112 min |
| Aug 12, 10:55 AM EDT | Areal Flood Advisory | BOX | Bristol | 2 hr |
| Aug 12, 11:07 AM EDT | Dense Fog Advisory | BOX | Norfolk, Plymouth, Suffolk | 3 hr |
| Aug 12, 3:18 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Worcester | 35 min |
| Aug 12, 3:28 PM EDT | Areal Flood Advisory | BOX | Worcester | 62 min |
| Aug 12, 4:04 PM EDT | Areal Flood Advisory | BOX | Bristol | 56 min |
| Aug 12, 5:03 PM EDT | Flash Flood Warning | BOX | Bristol | 78 min |
Nearby
Flash Flood Warnings in Massachusetts, 2018Every flash flood 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.