Alert archive / Massachusetts / Flash Flood Warnings in 2004
Flash Flood Warning 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Sep 18, 2004, 11:50 AM EDT for Worcester 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, 11:50 AM EDT (15:50 UTC)
- Expired
- Sep 18, 2004, 5:45 PM EDT
- In force
- 6 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Counties, with a storm outline in the text
County Worcester County, MA
The radar
The Boston radar (KBOX), 86 km from the middle of the area, began a volume at 15:51 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, 3.8 hours before the alert went out and 176 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 181551 FFWBOX MAC027-182145- /0..000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TAUNTON MA 1150 AM EDT SAT SEP 18 2004 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WARNING FOR... WORCESTER COUNTY IN CENTRAL MASSACHUSETTS THIS INCLUDES THE CITY OF LEOMINSTER * UNTIL 545 PM EDT * AT 1145 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT MORE VERY HEAVY RAIN WAS LIKELY TO FALL ACROSS WORCESTER COUNTY THROUGH MID AFTERNOON. FLASH FLOODING OF SMALL STREAMS IS LIKELY ESPECIALLY ACROSS NORTHERN AND WESTERN WORCESTER COUNTY. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WESTMINSTER...WEST BROOKFIELD...WEST BOYLSTON...WARREN... TEMPLETON...STERLING...SPENCER...RUTLAND...PRINCETON... PHILLIPSTON...PETERSHAM...PAXTON...OAKHAM...NORTH BROOKFIELD...NEW BRAINTREE...LEICESTER...LANCASTER...HOLDEN...HARDWICK...GARDNER... EAST BROOKFIELD...CLINTON...BROOKFIELD AND BARRE. IF YOU LIVE OR ARE CAMPING ALONG A FLOOD PRONE STREAM NOW IS THE TIME TO TAKE ACTION TO PROTECT LIFE AND PROPERTY. RAPID RISES ON SMALL RIVERS AND STREAMS CAN FLOOD HOMES...BUSINESSES AND ROADWAYS VERY QUICKLY. 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 4215 7225 4213 7201 4251 7158 4268 7218 $$ THOMPSON
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, 12:02 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 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.