Alert archive / New Hampshire / Flash Flood Warnings in 2013
Flash Flood Warning 60, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Sep 12, 2013, 4:17 PM EDT for Cheshire County, New Hampshire. It was in force for 5 hr. 12 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
- Sep 12, 2013, 4:17 PM EDT (20:17 UTC)
- Expired
- Sep 12, 2013, 9:34 PM EDT
- In force
- 5 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Cheshire County, NH
The radar
The Boston radar (KBOX), 137 km from the middle of the area, began a volume at 20:19 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 |
|---|---|---|---|
| Sep 12, 4:43 PM EDT | FLASH FLOOD | Keene, NH | 10 INCHES STREET FLOODING ON CHUCH AND ROXBURY STREETS |
| Sep 12, 4:48 PM EDT | FLASH FLOOD | Keene, NH | CITY HALL ON WASHINGTON ST HAS FLOODED BASEMENT. |
| Sep 12, 4:48 PM EDT | FLASH FLOOD | Keene, NH | SWANZEY FACTORY ROAD FLOODED AND IMPASSABLE. |
| Sep 12, 4:53 PM EDT | FLASH FLOOD | Keene, NH | 6 INCHES OF WATER ON BLAKE ST. AMBULANCE AND FIRE DEPT RESPONDING TO RESCUE ON THIS STREET. |
| Sep 12, 4:55 PM EDT | FLASH FLOOD | Swanzey, NH | HOMESTEAD AVENUE FLOODED AND IMPASSABLE. AND HOUSE WITH FLOODED BASEMENT. |
| Sep 12, 5:02 PM EDT | FLASH FLOOD | Sullivan, NH | ROUTE 9 NEAR SULLIVAN STORE FLOODING OVER THE BRIDGE WITH MUD AND DEBRIS THROWN ONTO THE BRIDGE. |
| Sep 12, 5:12 PM EDT | FLASH FLOOD | Keene, NH | WASHINGTON STREET FLOODED AND IMPASSABLE AND HOUSE WITH FLOODED BASEMENT. |
| Sep 12, 5:22 PM EDT | FLASH FLOOD | Harrisville, NH | CHESHAM ROAD NEAR OLD CHESHAM ROAD WASHED OUT |
| Sep 12, 5:24 PM EDT | FLASH FLOOD | Keene, NH | WOODLAND AVENUE FLOODED AND IMPASSABLE THEN CLOSED DUE TO WASH OUT. EASTERN AVENUE FLOODED AND IMPASSABLE. |
| Sep 12, 5:44 PM EDT | FLASH FLOOD | Jaffrey, NH | PINE STREET WITH FLOODED BASEMENT. |
| Sep 12, 6:08 PM EDT | FLASH FLOOD | Keene, NH | MARSTON AND BEACH STREETS WITH REPORTS OF FLOODED BASEMENTS. |
| Sep 12, 6:15 PM EDT | FLASH FLOOD | Jaffrey, NH | NORTH STREET FLOODED AND IMPASSABLE |
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, 8.3 hours before the alert went out and 130 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
- 261 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
904
WGUS51 KBOX 122017
FFWBOX
NHC005-122315-
/O.NEW.KBOX.FF.W.0060.130912T2017Z-130912T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
417 PM EDT THU SEP 12 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
* UNTIL 715 PM EDT
* AT 411 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS
PROGRESSING ACROSS THE WARNED AREA PRODUCING HEAVY RAIN. UP TO
AROUND TWO INCHES OF RAINFALL ESTIMATED BY DOPPLER RADAR HAS
FALLEN IN THE PAST TWO HOURS ACROSS THE WARNED AREA. FLASH
FLOODING IS EXPECTED TO CONTINUE.
* SEVERAL REPORTS HAVE BEEN RECEIVED IN KEENE NEW HAMPSHIRE OF ROADS
BECOMING IMPASSIBLE DUE TO FLOODING RESULTING IN ROAD CLOSURES.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KEENE...JAFFREY...SWANZEY...RINDGE...WINCHESTER...HINSDALE...
CHESTERFIELD...ANTRIM...MARLBOROUGH...FITZWILLIAM...TROY...
WESTMORELAND...HANCOCK...DUBLIN...STODDARD...RICHMOND...
HARRISVILLE...GILSUM...SURRY...NELSON...SULLIVAN...SHARON AND
ROXBURY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.
A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.
&&
LAT...LON 4295 7206 4294 7201 4280 7198 4278 7194
4275 7194 4275 7247 4277 7249 4277 7251
4284 7255 4288 7256 4290 7253 4294 7252
4312 7204
$$
SIPPRELL2 follow-up statements
249
WGUS51 KBOX 122256
FFWBOX
NHC005-130215-
/O.EXT.KBOX.FF.W.0060.000000T0000Z-130913T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
656 PM EDT THU SEP 12 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
CHESHIRE COUNTY IN SOUTHERN NEW HAMPSHIRE...
* UNTIL 1015 PM EDT
* AT 651 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS
PROGRESSING ACROSS THE WARNED AREA PRODUCING HEAVY RAIN. OBSERVERS
HAVE REPORTED AROUND 3 TO 4 INCHES OF RAINFALL IN THE LAST SEVERAL
HOURS ACROSS CHESHIRE COUNTY. FLASH FLOODING IS EXPECTED TO
CONTINUE.
* IN ADDITION...NUMEROUS REPORTS HAVE BEEN RECEIVED IN THE WARNED
AREA OF ROADS BECOMING IMPASSABLE DUE TO FLOODING RESULTING IN
ROAD CLOSURES...ALONG WITH FLOODED BASEMENTS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KEENE...JAFFREY...SWANZEY...RINDGE...WINCHESTER...HINSDALE...
CHESTERFIELD...ANTRIM...MARLBOROUGH...FITZWILLIAM...TROY...
WESTMORELAND...HANCOCK...DUBLIN...STODDARD...RICHMOND...
HARRISVILLE...GILSUM...SURRY...NELSON...SULLIVAN...SHARON AND
ROXBURY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING IS DIFFICULT TO SEE AT NIGHT. HEAD TO HIGHER GROUND
IMMEDIATELY AND DO NOT DRIVE THROUGH FLOODED ROADS. FIND ALTERNATE
ROUTES.
MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.
&&
LAT...LON 4295 7206 4294 7201 4280 7198 4278 7194
4275 7194 4275 7247 4277 7249 4277 7251
4284 7255 4288 7256 4290 7253 4294 7252
4312 7204
$$
SIPPRELL715
WGUS71 KBOX 130134
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
934 PM EDT THU SEP 12 2013
NHC005-130143-
/O.CAN.KBOX.FF.W.0060.000000T0000Z-130913T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CHESHIRE NH-
934 PM EDT THU SEP 12 2013
...THE FLASH FLOOD WARNING FOR CHESHIRE COUNTY IS CANCELLED...
THE HEAVY RAIN HAS ENDED ACROSS CHESHIRE COUNTY...THEREBY ENDING THE
FLASH FLOOD THREAT. THE FLASH FLOOD WARNING HAS BEEN REPLACED BY AN
AREAL FLOOD WARNING.
LAT...LON 4295 7206 4294 7201 4280 7198 4278 7194
4275 7194 4275 7247 4277 7249 4277 7251
4284 7255 4288 7256 4290 7253 4294 7252
4312 7204
$$
SIPPRELLThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 8:43 PM EDT | Special Weather Statement | BOX | Hillsborough | 92 min |
| Sep 11, 8:59 PM EDT | Special Weather Statement | BOX | Hillsborough | 46 min |
| Sep 11, 9:59 PM EDT | Special Weather Statement | BOX | Hillsborough | 31 min |
| Sep 12, 1:15 PM EDT | Special Weather Statement | BOX | Hillsborough | 45 min |
| Sep 12, 1:31 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 59 min |
| Sep 12, 1:40 PM EDT | Flash Flood Warning | BOX | Cheshire | 3 hr |
| Sep 12, 1:47 PM EDT | Flash Flood Watch | BOX | Cheshire, Hillsborough | 8 hr |
| Sep 12, 2:00 PM EDT | Special Weather Statement | BOX | Cheshire | 45 min |
| Sep 12, 2:10 PM EDT | Severe Thunderstorm Warning | BOX | Cheshire, Hillsborough | 65 min |
| Sep 12, 2:25 PM EDT | Flash Flood Warning | BOX | Cheshire | 3 hr |
| Sep 12, 2:53 PM EDT | Areal Flood Advisory | BOX | Cheshire, Hillsborough | 3 hr |
| Sep 12, 3:01 PM EDT | Special Weather Statement | BOX | Cheshire | 44 min |
| Sep 12, 3:32 PM EDT | Special Weather Statement | BOX | Cheshire | 28 min |
| Sep 12, 4:10 PM EDT | Special Weather Statement | BOX | Cheshire | 35 min |
| Sep 12, 4:40 PM EDT | Special Weather Statement | BOX | Hillsborough | 50 min |
| Sep 12, 5:00 PM EDT | Severe Thunderstorm Warning | BOX | Hillsborough | 45 min |
| Sep 12, 5:20 PM EDT | Flash Flood Warning | BOX | Hillsborough | 4 hr |
| Sep 12, 6:48 PM EDT | Areal Flood Advisory | BOX | Cheshire | 3 hr |
| Sep 12, 6:50 PM EDT | Special Weather Statement | BOX | Hillsborough | 40 min |
| Sep 12, 7:31 PM EDT | Areal Flood Advisory | BOX | Hillsborough | 4 hr |
Nearby
Flash Flood Warnings in New Hampshire, 2013Every flash flood warning in 2013
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.