Alert archive / Massachusetts / Flash Flood Warnings in 2018
Flash Flood Warning 26, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 18, 2018, 2:22 PM EDT for Hampden County, Hampshire County, Massachusetts. It was in force for 2 hr. 9 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 18, 2018, 2:22 PM EDT (18:22 UTC)
- Expired
- Aug 18, 2018, 4:26 PM EDT
- In force
- 2 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hampden County, MA, Hampshire County, MA
The radar
The Boston radar (KBOX), 115 km from the middle of the area, began a volume at 18:21 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 18, 2:25 PM EDT | FLOOD | Springfield, MA | ROOSEVELT AND BERLIN STREETS FLOODED WITH WATER ABOVE CAR FLOOR BOARDS. WOMAN AND CHILD TRAPPED IN A CAR WERE RESCUED AND ANOTHER CAR IN NEED OF RESCUE. |
| Aug 18, 2:38 PM EDT | FLOOD | Springfield, MA | WATER UP TO CAR HUBCAPS ON BOSTON ROAD IN FRONT OF EASTFIELD MALL. |
| Aug 18, 2:48 PM EDT | FLOOD | Springfield, MA | WATER FLOWING INTO BASEMENTS ON ASHLEY STREET AND MELHA STREET AND PARKSIDE STREET. |
| Aug 18, 2:49 PM EDT | FLOOD | West Springfield, MA | 6 TO 8 INCHES OF WATER FLOWING ON RIVERDALE ROAD AND WATER BLOWING OUT OF AND LIFTING MANHOLE COVERS. |
| Aug 18, 2:56 PM EDT | FLOOD | Springfield, MA | 8 INCHES OF WATER FLOWING DOWN MILL STREET. |
| Aug 18, 2:57 PM EDT | FLOOD | Springfield, MA | VERGE AND OAK GROVE AVENUES HAS A LADY TRAPPED IN CAR DUE TO FLOOD WATERS. |
| Aug 18, 3:01 PM EDT | FLOOD | Springfield, MA | WATER INTO BASEMENT ON HARVARD STREET. |
| Aug 18, 3:20 PM EDT | HEAVY RAIN 1.13 | Wilbraham, MA | |
| Aug 18, 4:11 PM EDT | HEAVY RAIN 2.03 | Springfield, MA |
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, 6.4 hours before the alert went out and 123 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
- 632 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.2
The text
As transmitted.
067 WGUS51 KBOX 181822 FFWBOX MAC013-015-182115- /O.NEW.KBOX.FF.W.0026.180818T1822Z-180818T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Boston/Norton MA 222 PM EDT SAT AUG 18 2018 The National Weather Service in Boston/Norton has issued a * Flash Flood Warning for... South central Hampshire County in western Massachusetts... Central Hampden County in western Massachusetts... * Until 515 PM EDT. * At 222 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Springfield, Chicopee, Holyoke, Agawam, West Springfield, Ludlow, South Hadley, East Longmeadow, Belchertown, Wilbraham, Palmer and Hampden. 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 4223 7238 4208 7239 4208 7269 4221 7268 $$ JWD
3 follow-up statements
636 WGUS71 KBOX 181836 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 236 PM EDT SAT AUG 18 2018 MAC013-015-182115- /O.CON.KBOX.FF.W.0026.000000T0000Z-180818T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hampshire MA-Hampden MA- 236 PM EDT SAT AUG 18 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR SOUTH CENTRAL HAMPSHIRE AND CENTRAL HAMPDEN COUNTIES... At 234 PM EDT, Doppler radar indicated torrential rain in the greater Springfield area, with rainfall rates of around 2 inches per hour. Flash flooding is already occurring. Several car rescues have been reported by Skywarn Amateur Radio operators in Springfield on Roosevelt, Berlin, and Tapley Streets. Some locations that will experience flooding include... Springfield, Chicopee, Holyoke, Agawam, West Springfield, Ludlow, South Hadley, East Longmeadow, Belchertown, Wilbraham, Palmer and Hampden. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4223 7238 4208 7239 4208 7269 4221 7268 $$ JWD
398 WGUS71 KBOX 181859 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 259 PM EDT SAT AUG 18 2018 MAC015-181907- /O.CAN.KBOX.FF.W.0026.000000T0000Z-180818T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hampshire MA- 259 PM EDT SAT AUG 18 2018 ...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL HAMPSHIRE COUNTY IS CANCELLED... Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. && LAT...LON 4208 7239 4208 7269 4216 7268 4217 7238 $$ MAC013-182115- /O.CON.KBOX.FF.W.0026.000000T0000Z-180818T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hampden MA- 259 PM EDT SAT AUG 18 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR CENTRAL HAMPDEN COUNTY... At 257 PM EDT, Doppler radar indicated heavy rain was moving out of the greater Springfield area, but additional rainfall of up to 1 inch will fall through 430 PM. So far, up to three inches of rain have already fallen, accoding to radar estimates. Several water rescues have occurred in Springfield due to rapidly flooding roadways. DO NOT DRIVE THROUGH FLOODED ROADS! Some locations that will experience flooding include... Springfield, Chicopee, Agawam, West Springfield, Ludlow, East Longmeadow, Wilbraham, Palmer and Hampden. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4208 7239 4208 7269 4216 7268 4217 7238 $$ JWD
217 WGUS71 KBOX 182026 FFSBOX Flash Flood Statement National Weather Service Boston/Norton MA 426 PM EDT SAT AUG 18 2018 MAC013-182036- /O.CAN.KBOX.FF.W.0026.000000T0000Z-180818T2115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hampden MA- 426 PM EDT SAT AUG 18 2018 ...THE FLASH FLOOD WARNING FOR CENTRAL HAMPDEN COUNTY IS CANCELLED... Heavy rain has ended. Although flooding is no longer expected to pose a threat, please continue to heed any remaining road closures. && LAT...LON 4208 7239 4208 7269 4216 7268 4217 7238 $$ JWD
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 8:38 PM EDT | Special Weather Statement | BOX | Hampshire | 67 min |
| Aug 17, 9:26 PM EDT | Special Weather Statement | BOX | Hampden | 49 min |
| Aug 17, 10:24 PM EDT | Special Weather Statement | BOX | Hampden | 51 min |
| Aug 17, 10:44 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Hampshire | 49 min |
| Aug 17, 10:56 PM EDT | Special Weather Statement | BOX | Worcester | 49 min |
| Aug 17, 10:59 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire | 101 min |
| Aug 17, 11:13 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 47 min |
| Aug 18, 12:01 AM EDT | Special Weather Statement | BOX | Middlesex | 44 min |
| Aug 18, 12:35 AM EDT | Special Weather Statement | BOX | Middlesex | 40 min |
| Aug 18, 2:38 AM EDT | Special Marine Warning | BOX | 52 min | |
| Aug 18, 3:23 AM EDT | Special Marine Warning | BOX | 52 min | |
| Aug 18, 3:53 AM EDT | Special Marine Warning | BOX | 52 min | |
| Aug 18, 3:56 AM EDT | Small Craft Advisory | BOX | 68 hr | |
| Aug 18, 4:31 AM EDT | Special Marine Warning | BOX | 59 min | |
| Aug 18, 5:07 AM EDT | Special Marine Warning | BOX | 53 min | |
| Aug 18, 5:57 AM EDT | Special Marine Warning | BOX | 93 min | |
| Aug 18, 1:29 PM EDT | Special Weather Statement | BOX | Hampshire | 31 min |
| Aug 18, 1:49 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire, Worcester | 26 min |
| Aug 18, 3:19 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 26 min |
| Aug 18, 4:25 PM EDT | Areal Flood Advisory | BOX | Bristol, Plymouth | 2 hr |
| Aug 18, 5:09 PM EDT | Special Marine Warning | BOX | 66 min | |
| Aug 18, 5:27 PM EDT | Special Weather Statement | BOX | Plymouth | 33 min |
| Aug 18, 5:45 PM EDT | Special Marine Warning | BOX | 60 min | |
| Aug 18, 5:56 PM EDT | Areal Flood Advisory | BOX | Barnstable | 2 hr |
| Aug 18, 7:02 PM EDT | Special Marine Warning | BOX | 43 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.