Alert archive / New Hampshire / Flash Flood Warnings in 1996

Flash Flood Warning 3, NWS Gray, ME

May 11, 19964 counties in New Hampshire

NWS Gray, ME issued this flash flood warning at May 11, 1996, 11:00 PM EDT for 4 counties in New Hampshire. 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
May 11, 1996, 11:00 PM EDT (03:00 UTC)
Expired
May 12, 1996, 5:00 AM EDT
In force
6 hr
Issued by
NWS Gray, ME
Area
Whole counties

Counties Belknap County, NH, Carroll County, NH, Coos County, NH, Grafton County, NH

The radar

The Portland,ME radar (KGYX), 95 km from the middle of the area, began a volume at 03:03 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

Gray, ME (KGYX), launched 00:00Z, 3.0 hours before the alert went out and 95 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 1996-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1996-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
441 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
487 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 120300
FFWPWM
NHC001-003-007-009-120900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
1100 PM EDT SAT MAY 11 1996
 
THE NATIONAL WEATHER SERVICE IN GRAY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 500 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NEW HAMPSHIRE
 
   ...BELKNAP COUNTY...CARROLL COUNTY...SOUTHERN COOS COUNTY
   ...GRAFTON COUNTY
 
THE NEW HAMPSHIRE STATE POLICE REPORT FLOODING ALONG ROUTE 302 IN THE
HARTS LOCATION-BARTLETT AREA WHERE SOUTHERN COOS COUNTY MEETS GRAFTON
AND CARROLL COUNTIES.  A WEATHER SPOTTER FROM MEREDITH AND A COOPERATIVE
WEATHER OBSERVER IN LACONIA REPORT FLOODING AND MUD SLIDES IN THE LAKES
REGION.
 
NATIONAL WEATHER SERVICE RADAR SHOWS MORE HEAVY RAIN MOVING INTO
NORTHERN AND CENTRAL NEW HAMPSHIRE.  ADDITIONAL FLOODING CAN BE
EXPECTED IN THESE COUNTIES.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS.  IF FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
 
SJC/NWS GRAY ME

Nearby

Flash Flood Warnings in New Hampshire, 1996Every flash flood warning in 1996

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.