Alert archive / Maine / Flash Flood Warnings in 2012

Flash Flood Warning 7, NWS Gray, ME

July 4, 2012Oxford County, Maine; Coos County, New Hampshire

NWS Gray, ME issued this flash flood warning at Jul 4, 2012, 4:54 PM EDT for Oxford County, Maine; Coos County, New Hampshire. It was in force for 4 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
Jul 4, 2012, 4:54 PM EDT (20:54 UTC)
Expired
Jul 4, 2012, 9:14 PM EDT
In force
4 hr
Issued by
NWS Gray, ME
Area
Storm-based polygon
Flood severity
None

Counties Oxford County, ME, Coos County, NH

The radar

The Portland,ME radar (KGYX), 152 km from the middle of the area, began a volume at 20:55 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

Gray, ME (KGYX), launched 12:00Z, 8.9 hours before the alert went out and 152 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.

Skew-T log-pSkew-T log-p diagram, Gray, ME at 12:00Z on 2012-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2012-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
6 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

662 
WGUS51 KGYX 042054
FFWGYX
MEC017-NHC007-042345-
/O.NEW.KGYX.FF.W.0007.120704T2054Z-120704T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
454 PM EDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN OXFORD COUNTY IN WESTERN MAINE...
  NORTHERN COOS COUNTY IN NORTHERN NEW HAMPSHIRE...

* UNTIL 745 PM EDT

* AT 446 PM EDT...DOPPLER RADAR INDICATED SEVERAL THUNDERSTORMS 
MOVING INTO NORTHERN COOS COUNTY.  RADAR HAS INDICATED THAT OVER 2 
INCHES OF RAIN HAS ALREADY FALLEN AROUND THE PITTSBURG AREA AND 
ANOTHER 1 TO 2 INCHES OF RAIN CAN BE EXPECTED.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
  FRANCIS STATE PARK AND PITTSBURG

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE 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 FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 4501 7151 4502 7151 4517 7138 4501 7097
      4481 7114 4501 7152

$$

MPK
2 follow-up statements
438 
WGUS51 KGYX 042336
FFWGYX
MEC017-NHC007-050245-
/O.EXT.KGYX.FF.W.0007.000000T0000Z-120705T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
736 PM EDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN OXFORD COUNTY IN WESTERN MAINE...
  NORTHERN COOS COUNTY IN NORTHERN NEW HAMPSHIRE...

* UNTIL 1045 PM EDT

* AT 728 PM EDT... RAPID RISES IN RIVERS AND STREAMS WERE OBSERVED   
OVER THE WARNED AREA.... WITH AN ADDITIONAL 1 TO 2 INCHES OF 
RAINFALL EXPECTED.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LAKE
  FRANCIS STATE PARK AND PITTSBURG

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4501 7151 4502 7151 4517 7138 4501 7097
      4481 7114 4501 7152

$$

MBC
523 
WGUS71 KGYX 050114
FFSGYX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
914 PM EDT WED JUL 4 2012

MEC017-NHC007-050124-
/O.CAN.KGYX.FF.W.0007.000000T0000Z-120705T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OXFORD ME-COOS NH-
914 PM EDT WED JUL 4 2012

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN COOS AND
EXTREME NORTHWESTERN OXFORD COUNTIES...

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR SOUTHWESTERN MAINE AND NEW HAMPSHIRE.

LAT...LON 4501 7151 4502 7151 4517 7138 4501 7097
      4481 7114 4501 7152

$$

MBC

The office that day

Everything else NWS Gray, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 3:16 PM EDTSpecial Weather StatementGYXFranklin, Oxford, Somerset2 hr
Jul 4, 4:15 PM EDTSevere Thunderstorm WarningGYXOxford45 min
Jul 4, 5:15 PM EDTSevere Thunderstorm WarningGYXYork45 min
Jul 4, 5:17 PM EDTFlash Flood WarningGYXFranklin, Oxford3 hr
Jul 4, 5:42 PM EDTSpecial Weather StatementGYXOxford63 min
Jul 4, 5:50 PM EDTSevere Thunderstorm WarningGYXOxford55 min
Jul 4, 6:10 PM EDTSpecial Weather StatementGYXYork50 min
Jul 4, 6:23 PM EDTSevere Thunderstorm WarningGYXOxford34 min
Jul 4, 6:49 PM EDTSpecial Weather StatementGYXSomerset41 min
Jul 4, 6:50 PM EDTSevere Thunderstorm WarningGYXFranklin, Somerset40 min
Jul 4, 6:55 PM EDTSpecial Weather StatementGYXAndroscoggin, Cumberland65 min
Jul 4, 7:15 PM EDTSpecial Weather StatementGYXCumberland45 min
Jul 4, 7:30 PM EDTAreal Flood AdvisoryGYXAndroscoggin, Cumberland, Oxford, York90 min
Jul 4, 7:38 PM EDTSevere Thunderstorm WarningGYXCumberland, Oxford, York52 min
Jul 4, 7:50 PM EDTSpecial Marine WarningGYX85 min
Jul 4, 2:59 PM EDTSpecial Weather StatementGYXCoos61 min
Jul 4, 3:55 PM EDTAreal Flood AdvisoryGYXCoos3 hr
Jul 4, 4:08 PM EDTSpecial Weather StatementGYXCoos52 min
Jul 4, 4:27 PM EDTSevere Thunderstorm WarningGYXGrafton63 min
Jul 4, 5:05 PM EDTSpecial Weather StatementGYXCoos55 min
Jul 4, 5:08 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Grafton67 min
Jul 4, 6:08 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Grafton, Merrimack, Strafford67 min
Jul 4, 6:38 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll, Grafton, Merrimack, Rockingham, Strafford67 min
Jul 4, 7:10 PM EDTAreal Flood AdvisoryGYXGrafton3 hr
Jul 4, 7:43 PM EDTSpecial Weather StatementGYXRockingham47 min
Jul 4, 7:45 PM EDTAreal Flood AdvisoryGYXMerrimack90 min
Jul 4, 7:48 PM EDTSpecial Weather StatementGYXCoos57 min

Nearby

Flash Flood Warnings in Maine, 2012Flash Flood Warnings in New Hampshire, 2012Every flash flood warning in 2012

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.