Alert archive / Massachusetts / Flash Flood Warnings in 2007
Flash Flood Warning 6, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 3, 2007, 8:26 PM EDT for Worcester County, Massachusetts. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2007, 8:26 PM EDT (00:26 UTC)
- Expired
- Aug 3, 2007, 10:30 PM EDT
- In force
- 2 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Whole counties
County Worcester County, MA
The radar
The Boston radar (KBOX), 77 km from the middle of the area, began a volume at 00:29 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
Albany, NY (KALY), launched 00:00Z, 0.4 hours before the alert went out and 162 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
- 2899 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KBOX 040027
FFWBOX
MAC027-040230-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
826 PM EDT FRI AUG 3 2007
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL WORCESTER COUNTY IN CENTRAL MASSACHUSETTS...
THIS INCLUDES THE CITIES OF...WORCESTER...LEOMINSTER...
* UNTIL 1030 PM EDT
* AT 825 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STERLING...
PRINCETON...PETERSHAM...LANCASTER...HUBBARDSTON...CLINTON AND BARRE
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS
ARE SUBJECT TO FLOODING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
LAT...LON 4236 7223 4250 7225 4255 7171 4242 7162
4218 7164 4216 7218
TIME...MOT...LOC 0026Z 180DEG 0KT 4239 7193
$$
NMB1 follow-up statement
000
WGUS71 KBOX 040108
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
906 PM EDT FRI AUG 3 2007
MAC027-040230-
WORCESTER MA-
906 PM EDT FRI AUG 3 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
CENTRAL WORCESTER COUNTY...
AT 906 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING OVER THE WARNED AREA.
RADAR INDICATED THAT THUNDERSTORMS WITH HEAVY DOWNPOURS WERE
CROSSING THROUGH THE GREATER WORCESTER AREA. IN ADDITION...A
THUNDERSTORM WAS CROSSING OVER PETERSHAM...AND THIS STORM IS
EXPECTED TO TRACK INTO GARDNER AND WESTMINSTER BY 930 PM. RAINFALL
RATES IN EXCESS OF 3 INCHES PER HOUR ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STERLING...
PRINCETON...PETERSHAM...LEOMINSTER...LANCASTER...HUBBARDSTON...
CLINTON AND BARRE
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
LAT...LON 4236 7223 4250 7225 4255 7171 4242 7162
4218 7164 4216 7218
TIME...MOT...LOC 0102Z 180DEG 0KT 4239 7193
$$
NMBThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:47 PM EDT | Severe Thunderstorm Warning | BOX | Franklin | 58 min |
| Aug 3, 8:49 PM EDT | Severe Thunderstorm Warning | BOX | Hampshire | 56 min |
| Aug 3, 9:24 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 66 min |
| Aug 3, 10:28 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 40 min |
| Aug 4, 5:15 AM EDT | Special Marine Warning | BOX | 90 min | |
| Aug 4, 6:51 AM EDT | Special Marine Warning | BOX | 54 min | |
| Aug 4, 4:03 PM EDT | Special Marine Warning | BOX | 42 min |
Nearby
Flash Flood Warnings in Massachusetts, 2007Every flash flood warning in 2007
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.