Alert archive / Connecticut / Flash Flood Warnings in 2009
Flash Flood Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jun 15, 2009, 6:02 PM EDT. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2009, 6:02 PM EDT (22:02 UTC)
- Expired
- Jun 15, 2009, 8:00 PM EDT
- In force
- 118 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
The radar
The Boston radar (KBOX), 104 km from the middle of the area, began a volume at 22:03 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
Chatham, MA (KCHH), launched 12:00Z, 10.0 hours before the alert went out and 202 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
- 2 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 498 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KBOX 152202 FFWBOX CTC013-160000- /O.NEW.KBOX.FF.W.0002.090615T2202Z-090616T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TAUNTON MA 602 PM EDT MON JUN 15 2009 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL TOLLAND COUNTY IN NORTHERN CONNECTICUT... THIS INCLUDES THE CITY OF MANSFIELD... * UNTIL 800 PM EDT * AT 559 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING WOULD LIKELY OCCUR FROM THUNDERSTORMS OVER THE WARNED AREA. EXCESSIVE RUNOFF FROM HEAVY RAIN WILL CAUSE RAPID RISES OF CREEKS AND SMALL STREAMS...AND SOME SMALL STREAMS WILL LIKELY FLOOD. FLOODING OF ROADS AND UNDERPASSES IS ALSO EXPECTED. MOST FLOOD DEATHS OCCUR IN VEHICLES. NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODING ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. LAT...LON 4195 7249 4194 7224 4182 7223 4185 7249 $$ THOMPSON
1 follow-up statement
000 WGUS71 KBOX 152359 FFSBOX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 759 PM EDT MON JUN 15 2009 CTC013-160004- /O.EXP.KBOX.FF.W.0002.000000T0000Z-090616T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ TOLLAND CT- 759 PM EDT MON JUN 15 2009 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM EDT FOR CENTRAL TOLLAND COUNTY... THE THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED OUT OF THE AREA AND THE RISK OF FLASH FLOODING HAS ENDED. A FEW STREAMS IN CENTRAL TOLLAND COUNTY MAY REMAIN HIGH FOR A WHILE THIS EVENING...AND MOTORISTS SHOULD STILL BE CAUTIOUS. DO NOT ATTEMPT TO DRIVE ACROSS ANY FLOODED ROADS. LAT...LON 4195 7249 4194 7224 4182 7223 4185 7249 $$ THOMPSON
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 5:42 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 3 hr |
Nearby
Flash Flood Warnings in Connecticut, 2009Every flash flood warning in 2009
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.