Alert archive / Maine / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Gray, ME

October 21, 20165 counties in Maine

NWS Gray, ME issued this flash flood warning at Oct 21, 2016, 10:39 PM EDT for 5 counties in Maine. It was in force for 3 hr. 6 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
Oct 21, 2016, 10:39 PM EDT (02:39 UTC)
Expired
Oct 22, 2016, 1:45 AM EDT
In force
3 hr
Issued by
NWS Gray, ME
Area
Storm-based polygon
Flood severity
None

Counties Androscoggin County, ME, Cumberland County, ME, Oxford County, ME, Sagadahoc County, ME, York County, ME

The radar

The Portland,ME radar (KGYX), 32 km from the middle of the area, began a volume at 02:39 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

TimeReportWhereRemark
Oct 21, 11:24 PM EDTFLASH FLOODSaco, MEHEAVY FLOODING REPORTED IN SACO
Oct 21, 11:24 PM EDTFLASH FLOODSaco, MEI-195 OVERPASS AND TRAIN TRESLE ON BEACH ST
Oct 21, 11:25 PM EDTFLASH FLOODSouth Paris, MEMAIN ST NEAR GARY STREET FLOODED
Oct 21, 11:26 PM EDTFLASH FLOODOgunquit, MERT 1 NEAR SHORE RD FLOODED
Oct 21, 11:28 PM EDTFLASH FLOODEliot, MERT 101 REDUCED TO 1 LANE DUE TO FLOODING
Oct 22, 12:05 AM EDTFLASH FLOODBridgton, MERT 302 REDUCED TO 1 LANE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Gray, ME (KGYX), launched 00:00Z, 2.7 hours before the alert went out and 32 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 00:00Z on 2016-10-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2016-10-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

985 
WGUS51 KGYX 220239
FFWGYX
MEC001-005-017-023-031-220545-
/O.NEW.KGYX.FF.W.0009.161022T0239Z-161022T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
1039 PM EDT FRI OCT 21 2016

THE NATIONAL WEATHER SERVICE IN GRAY MAINE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL SAGADAHOC COUNTY IN SOUTH CENTRAL MAINE...
  SOUTHERN OXFORD COUNTY IN WESTERN MAINE...
  ANDROSCOGGIN COUNTY IN SOUTHWESTERN MAINE...
  YORK COUNTY IN SOUTHWESTERN MAINE...
  CUMBERLAND COUNTY IN SOUTHWESTERN MAINE...

* UNTIL 145 AM EDT

* AT 1038 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PORTLAND...LEWISTON...SOUTH PORTLAND...BIDDEFORD...BRUNSWICK...
  WESTBROOK...KITTERY...BATH...BRIDGTON...FRYEBURG...
  MECHANIC FALLS...ALFRED...TURNER...NAPLES...SANFORD...TOPSHAM...
  CUMBERLAND...SACO AND GORHAM.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4313 7083 4324 7081 4329 7091 4339 7099
      4355 7095 4405 7100 4432 7095 4436 7029
      4416 7001 4413 7003 4411 6994 4396 6972
      4307 7070

$$

MBC
2 follow-up statements
511 
WGUS71 KGYX 220344
FFSGYX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
1144 PM EDT FRI OCT 21 2016

MEC001-005-017-023-031-220545-
/O.CON.KGYX.FF.W.0009.000000T0000Z-161022T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAGADAHOC ME-OXFORD ME-ANDROSCOGGIN ME-YORK ME-CUMBERLAND ME-
1144 PM EDT FRI OCT 21 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM EDT FOR
CENTRAL SAGADAHOC...SOUTHERN OXFORD...ANDROSCOGGIN...YORK AND
CUMBERLAND COUNTIES...

AT 1143 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN
SACO...PORTLAND...ELIOT AND PARIS.UP TO THREE INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS ALREADY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PORTLAND...LEWISTON...SOUTH PORTLAND...BIDDEFORD...
BRUNSWICK...WESTBROOK...KITTERY...BATH...BRIDGTON...FRYEBURG...
MECHANIC FALLS...ALFRED...TURNER...NAPLES...SANFORD...TOPSHAM...
CUMBERLAND...SACO AND GORHAM.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4313 7083 4324 7081 4329 7091 4339 7099
      4355 7095 4405 7100 4432 7095 4436 7029
      4416 7001 4413 7003 4411 6994 4396 6972
      4307 7070

$$

CURTIS
778 
WGUS71 KGYX 220541
FFSGYX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
141 AM EDT SAT OCT 22 2016

MEC001-005-017-023-031-220549-
/O.EXP.KGYX.FF.W.0009.000000T0000Z-161022T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAGADAHOC ME-OXFORD ME-ANDROSCOGGIN ME-YORK ME-CUMBERLAND ME-
141 AM EDT SAT OCT 22 2016

...THE FLASH FLOOD WARNING FOR CENTRAL SAGADAHOC...SOUTHERN OXFORD...
ANDROSCOGGIN...YORK AND CUMBERLAND COUNTIES WILL EXPIRE AT 145 AM
EDT...

THE HEAVY RAIN HAS ENDED...BUT WATER MAY CONTINUE TO DRAIN OVER THE
NEXT FEW HOURS. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
REMEMBER NEVER DRIVE THROUGH FLOODED ROADWAYS...TURN AROUND DONT
DROWN. 

LAT...LON 4313 7083 4324 7081 4329 7091 4339 7099
      4355 7095 4405 7100 4432 7095 4436 7029
      4416 7001 4413 7003 4411 6994 4396 6972
      4307 7070

$$

CEMPA

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 21, 9:29 PM EDTAreal Flood AdvisoryGYXAndroscoggin, Cumberland, Sagadahoc, York3 hr
Oct 21, 9:44 PM EDTAreal Flood AdvisoryGYXAndroscoggin, Cumberland, Franklin, Kennebec, Oxford, York3 hr
Oct 21, 11:18 PM EDTSpecial Weather StatementGYXSagadahoc42 min
Oct 22, 12:09 AM EDTAreal Flood AdvisoryGYXAndroscoggin, Franklin, Kennebec, Knox, Lincoln, Oxford and 3 more3 hr
Oct 22, 3:27 AM EDTGale WarningGYX48 hr

Nearby

Flash Flood Warnings in Maine, 2016Every flash flood warning in 2016

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.