Alert archive / New Hampshire / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 13, NWS Gray, ME

July 23, 1990Belknap County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 23, 1990, 7:08 PM EDT for Belknap County, New Hampshire. It was in force for 52 min.

The area

The counties it named.

The facts

Issued: Jul 23, 1990, 7:08 PM EDT (23:08 UTC)
Expired: Jul 23, 1990, 8:00 PM EDT
In force: 52 min
Issued by: NWS Gray, ME
Area: Whole counties

County Belknap County, NH

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 11.1 hours before the alert went out and 102 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3609 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 114 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 KCON 232310
SVRCON
NHC001-240000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CONCORD NH
708 PM EDT MON JUL 23 1990
 
THE NATIONAL WEATHER SERVICE IN CONCORD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN EAST CENTRAL NEW HAMPSHIRE
          ...BELKNAP
 
NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM IN
NORTHERN MERRIMACK COUNTY JUST WEST OF FRANKLIN MOVING TO THE
NORTHEAST AT AROUND 25 MPH. THIS STORM SHOULD MOVE INTO WESTERN
BELKNAP COUNTY IN THE NEXT FEW MINUTES.
 
 
 
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
WESTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 6:55 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	35 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 1990 Every severe thunderstorm warning in 1990

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.