Alert archive / Massachusetts / Flash Flood Warnings in 2018
Flash Flood Warning 13, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 3, 2018, 5:08 PM EDT for Franklin County, Hampden County, Hampshire County, Massachusetts. It was in force for 112 min. 8 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 3, 2018, 5:08 PM EDT (21:08 UTC)
- Expired
- Aug 3, 2018, 7:00 PM EDT
- In force
- 112 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Franklin County, MA, Hampden County, MA, Hampshire County, MA
The radar
The Albany radar (KENX), 114 km from the middle of the area, began a volume at 21:11 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 3, 5:12 PM EDT | FLOOD | Greenfield, MA | SEVERAL FLOODED BASEMENTS ON FRANKLIN STREET |
| Aug 3, 5:25 PM EDT | FLOOD | Greenfield, MA | AVE A IN THE VICINITY OF FOOD CITY PLAZA MANHOLE COVERS FORCED OFF DUE TO FLOODING ROAD WAS IMPASSABLE. ARCH STREET AND DEERFIELD FLOODED AND IMPASSABLE |
| Aug 3, 5:27 PM EDT | FLOOD | Greenfield, MA | RTE 2 AT NORTHSTREET FLOODED AND IMPASSABLE |
| Aug 3, 5:33 PM EDT | FLOOD | Greenfield, MA | SCOUT ROAD FLOODED AND IMPASSABLE WATER GETTING INTO BASEMENTS |
| Aug 3, 5:36 PM EDT | FLOOD | Greenfield, MA | SANDERSON STREET IN THE VICINITY OF KENNEMETAL AND BAY STATE FRANKLIN MEDICAL CENTER COMPLETELY FLOODED |
| Aug 3, 5:46 PM EDT | FLOOD | Greenfield, MA | ADAMS ROAD FLOODED AND IMPASSABLE |
| Aug 3, 6:06 PM EDT | FLOOD | Greenfield, MA | SIGNIFICANT BASEMENT FLOODING ON GREEN STREET |
| Aug 3, 6:25 PM EDT | FLOOD | Turners Falls, MA | GRISWOLD STREET AND AVENUE C FLOODED OUT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Albany, NY (KALY), launched 12:00Z, 9.1 hours before the alert went out and 96 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
- 98 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 716 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
532 WGUS51 KBOX 032108 FFWBOX MAC011-013-015-032300- /O.NEW.KBOX.FF.W.0013.180803T2108Z-180803T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Boston/Norton MA 508 PM EDT FRI AUG 3 2018 The National Weather Service in Boston/Norton has issued a * Flash Flood Warning for... Southwestern Hampshire County in western Massachusetts... Central Franklin County in western Massachusetts... Northwestern Hampden County in western Massachusetts... * Until 700 PM EDT. * At 506 PM EDT...Doppler Radar indicated rainfall amounts up to 2 inches within the last hour while a trained weather spotter in Greenfield, MA reported 1.17 inches in 30 minutes. * Up to two inches of rain has already fallen and another inch is forecast. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Northampton, Greenfield, Deerfield, Easthampton, Montague, Southampton, Hatfield, Northfield, Williamsburg, Huntington, Bernardston, Conway, Shelburne, Ashfield, Colrain, Westhampton, Gill, Whately, Chester and Chesterfield. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 4273 7263 4272 7241 4223 7276 4225 7297 $$ Sipprell
1 follow-up statement
379 WGUS71 KBOX 032128 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 528 PM EDT FRI AUG 3 2018 MAC011-013-015-032300- /O.CON.KBOX.FF.W.0013.000000T0000Z-180803T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hampshire MA-Franklin MA-Hampden MA- 528 PM EDT FRI AUG 3 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR SOUTHWESTERN HAMPSHIRE...CENTRAL FRANKLIN AND NORTHWESTERN HAMPDEN COUNTIES... At 526 PM EDT, trained weather spotters have begun reporting flooded basements and roadways in both Greenfield and Turners Falls Massachusetts as a result of thunderstorms producing heavy rain. Up to two inches of rain have already fallen in the warned area. Flash flooding is ongoing. Some locations that will experience flooding include... Northampton, Greenfield, Deerfield, Easthampton, Montague, Southampton, Hatfield, Northfield, Williamsburg, Huntington, Bernardston, Conway, Shelburne, Ashfield, Colrain, Westhampton, Gill, Whately, Chester and Chesterfield. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4273 7263 4272 7241 4223 7276 4225 7297 $$ Sipprell
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 3:30 AM EDT | Heat Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 15 hr |
| Aug 3, 12:56 PM EDT | Special Weather Statement | BOX | Worcester | 34 min |
| Aug 3, 1:02 PM EDT | Special Weather Statement | BOX | Worcester | 28 min |
| Aug 3, 1:07 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 23 min |
| Aug 3, 1:11 PM EDT | Special Weather Statement | BOX | Norfolk | 34 min |
| Aug 3, 1:43 PM EDT | Areal Flood Advisory | BOX | Suffolk | 62 min |
| Aug 3, 1:47 PM EDT | Special Weather Statement | BOX | Norfolk, Suffolk | 43 min |
| Aug 3, 1:53 PM EDT | Special Marine Warning | BOX | 42 min | |
| Aug 3, 2:41 PM EDT | Flash Flood Watch | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 25 hr |
| Aug 3, 2:58 PM EDT | Special Weather Statement | BOX | Franklin | 47 min |
| Aug 3, 3:05 PM EDT | Special Marine Warning | BOX | 25 min | |
| Aug 3, 3:35 PM EDT | Small Craft Advisory | BOX | 32 hr | |
| Aug 3, 3:59 PM EDT | Special Weather Statement | BOX | Franklin | 46 min |
| Aug 3, 5:14 PM EDT | Special Weather Statement | BOX | Franklin | 31 min |
| Aug 3, 5:16 PM EDT | Special Weather Statement | BOX | Franklin | 29 min |
| Aug 3, 5:19 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Worcester | 27 min |
| Aug 3, 5:20 PM EDT | Tornado Warning | BOX | Franklin, Worcester | 25 min |
| Aug 3, 5:34 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Worcester | 13 min |
| Aug 3, 5:50 PM EDT | Special Weather Statement | BOX | Hampden, Hampshire | 55 min |
| Aug 3, 5:59 PM EDT | Flash Flood Warning | BOX | Franklin, Hampshire, Worcester | 71 min |
| Aug 3, 6:03 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire, Worcester | 27 min |
| Aug 3, 6:04 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire, Worcester | 41 min |
| Aug 3, 6:27 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 48 min |
| Aug 3, 7:08 PM EDT | Areal Flood Advisory | BOX | Worcester | 21 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.