Alert archive / Maine / Flash Flood Warnings in 1997

Flash Flood Warning 5, NWS Gray, ME

April 18, 1997Cumberland County, Maine

NWS Gray, ME issued this flash flood warning at Apr 18, 1997, 5:28 PM EDT for Cumberland County, Maine. It was in force for 6 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
Apr 18, 1997, 5:28 PM EDT (21:28 UTC)
Expired
Apr 18, 1997, 11:30 PM EDT
In force
6 hr
Issued by
NWS Gray, ME
Area
Whole counties

County Cumberland County, ME

The radar

The Portland,ME radar (KGYX), 11 km from the middle of the area, began a volume at 21:28 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, 9.5 hours before the alert went out and 11 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 1997-04-18Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 1997-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.1939587897Sfc1 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
443 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
87 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.

000 
TTAA00 KPWM 182130
FFWPWM
MEC005-031-NHC003-017-190330-
 
BULLETIN - IMMEDIATE BROADCAST REQ.
FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
528 PM EDT FRI APR 18 1997
 
THE NATIONAL WEATHER SERVICE IN GRAY HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1130 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  MAINE
 
   ...CUMBERLAND COUNTY...YORK COUNTY
 
IN  NEW HAMPSHIRE
 
   ...CARROLL COUNTY...STRAFFORD COUNTY
 
RAINFALL OF 2 TO 3 INCHES HAS BEEN REPORTED IN CENTRAL YORK COUNTY.
HEAVY RAIN IS EXPECTED TO CONTINUE THROUGH THE EVENING HOURS WITH
ANOTHER 1 INCH OF RAIN POSSIBLE. SOME FLOODING HAS BEEN REPORTED ON
SEVERAL ROADS IN LEBANON MAINE BECAUSE OF OVER BURDENED CULVERTS.
 
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.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
HAWLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 5:28 PM EDTFlash Flood WarningGYXYork6 hr

Nearby

Flash Flood Warnings in Maine, 1997Every flash flood warning in 1997

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.