Alert archive / Massachusetts / Flash Flood Warnings in 2004
Flash Flood Warning 5, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Sep 18, 2004, 12:02 PM EDT for Hampden County, Hampshire County, Massachusetts. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 18, 2004, 12:02 PM EDT (16:02 UTC)
- Expired
- Sep 18, 2004, 6:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Counties, with a storm outline in the text
Counties Hampden County, MA, Hampshire County, MA
The radar
The Boston radar (KBOX), 125 km from the middle of the area, began a volume at 16:04 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 4.0 hours before the alert went out and 149 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
- 1385 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KBOX 181603 FFWBOX MAC013-015-182200- /0..000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1202 PM EDT SAT SEP 18 2004 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WARNING FOR... HAMPDEN COUNTY IN WESTERN MASSACHUSETTS THIS INCLUDES THE CITIES OF...SPRINGFIELD...CHICOPEE EASTERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS THIS INCLUDES THE CITIES OF...NORTHAMPTON...AMHERST * UNTIL 600 PM EDT * AT NOON EDT...HEAVY RAINFALL OF 4 TO 5 INCHES HAS BEEN REPORTED ACROSS MUCH OF HAMPDEN COUNTY...AND RADAR INDICATES THAT NEARLY 4 INCHES HAS FALLEN ACROSS PORTIONS OF HAMPSHIRE COUNTY. THIS IS LIKELY ENOUGH RAINFALL TO PRODUCE FLASH FLOODING OF SMALL STREAMS. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WILLIAMSBURG...WILBRAHAM...WESTHAMPTON...WEST SPRINGFIELD... WALES...SOUTHAMPTON...SOUTH HADLEY...PALMER...MONTGOMERY... MONSON...LUDLOW...HOLYOKE...HATFIELD...HAMPDEN...HADLEY... GRANVILLE...GRANBY...EASTHAMPTON...EAST LONGMEADOW...BELCHERTOWN AND AGAWAM. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO RIVERS AND STREAMS. EVEN THE SMALLEST STREAMS CAN BECOME KILLERS IN TORRENTIAL RAINS. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER ATTEMPT TO CROSS BRIDGES OR ROADS WHERE WATER COVERS THE ROADWAY. IT ONLY TAKES A FOOT OR TWO OF WATER TO WASH MOST CARS AWAY. LAT...LON 4206 7288 4205 7216 4238 7240 4242 7278 $$ THOMPSON
1 follow-up statement
000 WGUS71 KBOX 181745 FFSBOX MAC013-015-182200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 141 PM EDT SAT SEP 18 2004 ...A FLASH FLOOD WARNING FOR CONTINUES UNTIL 600 PM EDT FOR HAMPDEN AND EASTERN HAMPSHIRE COUNTIES... AT 141 PM EDT... THE RAIN HAD COME TO AN END OVER HAMPSHIRE AND HAMPDEN COUNTIES AT 140 PM. HOWEVER SMALL RIVERS AND STREAMS WILL CONTINUE TO RISE AS RUNOFF FROM THE HEAVY RAINS CONTINUES. AT 1 PM THE WEST BRANCH OF THE FARMINGTON RIVER IN NEW BOSTON WAS JUST A HALF A FOOT BELOW FLOOD STAGE AND WILL LIKELY EXCEED FLOOD STAGE BETWEEN 2 AND 230 PM. LAT...LON 4206 7288 4205 7216 4238 7240 4242 7278 $$ AED
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 11:00 AM EDT | Flash Flood Warning | BOX | Franklin | 6 hr |
| Sep 18, 11:50 AM EDT | Flash Flood Warning | BOX | Worcester | 6 hr |
| Sep 18, 12:24 PM EDT | Special Marine Warning | BOX | 81 min | |
| Sep 18, 12:24 PM EDT | Special Marine Warning | BOX | 81 min | |
| Sep 18, 12:24 PM EDT | Special Marine Warning | BOX | 81 min | |
| Sep 18, 12:24 PM EDT | Special Marine Warning | BOX | 81 min | |
| Sep 18, 2:06 PM EDT | Special Marine Warning | BOX | 84 min | |
| Sep 18, 2:06 PM EDT | Special Marine Warning | BOX | 84 min |
Nearby
Flash Flood Warnings in Massachusetts, 2004Every flash flood warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.