Alert archive / New Hampshire / Flash Flood Warnings in 1998

Flash Flood Warning 7, NWS Gray, ME

June 13, 1998Rockingham County, New Hampshire

NWS Gray, ME issued this flash flood warning at Jun 13, 1998, 5:31 PM EDT for Rockingham County, New Hampshire. It was in force for 8 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
Jun 13, 1998, 5:31 PM EDT (21:31 UTC)
Expired
Jun 14, 1998, 1:30 AM EDT
In force
8 hr
Issued by
NWS Gray, ME
Area
Whole counties

County Rockingham County, NH

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.5 hours before the alert went out and 121 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 1998-06-13Temperature 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 1998-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
434 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
189 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 132133
FFWPWM
NHC015-140525-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GRAY ME
531 PM EDT SAT JUN 13 1998

THE NATIONAL WEATHER SERVICE IN GRAY HAS ISSUED A

* FLOOD WARNING FOR...
  ROCKINGHAM COUNTY IN SOUTHEASTERN NEW HAMPSHIRE

* UNTIL 130 AM EDT

* AT 530 PM ... DOPPLER RADAR INDICATED A NEARLY STATIONARY AREA
OF HEAVY RAIN WITH EMBEDDED THUNDERSTORMS NEAR PORTSMOUTH.

* LAW ENFORCEMENT AGENCIES IN PORTSMOUTH REPORT ThHAT PARTS OF
BARTLETT AND OTHER ROADS ARE UNDER WATER.  THERE ARE ALSO NUMEROUS
FLOODED BASEMENTS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 6:23 PM EDTFlash Flood WarningGYXStrafford8 hr

Nearby

Flash Flood Warnings in New Hampshire, 1998Every flash flood warning in 1998

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.