Alert archive / New Hampshire / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 1, NWS Gray, ME
NWS Gray, ME issued this severe thunderstorm warning at May 20, 1998, 6:40 PM EDT for Grafton County, Sullivan County, New Hampshire. It was in force for 45 min. 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 20, 1998, 6:40 PM EDT (22:40 UTC)
- Expired
- May 20, 1998, 7:25 PM EDT
- In force
- 45 min
- Issued by
- NWS Gray, ME
- Area
- Whole counties
Counties Grafton County, NH, Sullivan County, NH
The nearest sounding before it
Gray, ME (KGYX), launched 12:00Z, 10.7 hours before the alert went out and 144 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1614 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 20, 3:28 PM EDT, 3 hours 12 minutes before
MEZ007-012-018-019-NHZ001>010-013-202225- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 328 PM EDT WED MAY 20 1998 ...STRONG THUNDERSTORMS POSSIBLE OVER NEW HAMPSHIRE AND WESTERN MAINE... A LINE OF THUNDERSTORMS WHICH DEVELOPED OVER EASTERN NEW YORK AND VERMONT DURING THE MID AFTERNOON HOURS WILL CROSS INTO NEW HAMPSHIRE AND WESTERN MAINE THIS EVENING. THE STRONGEST STORMS ARE EXPECTED ALONG THE CONNECTICUT RIVER VALLEY...THE STORZMS SHOULD THEN WEAKEN AS THEY MOVE TOWARD THE MAINE BORDER. THESE STORMS MAY BE ACCOMPANIED BY HAIL...STRONG WINDS AND HEAVY RAIN. PEOPLE OUT DOORS THIS EVENING SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES. LULOFS
Special weather statement, May 20, 3:28 PM EDT, 3 hours 12 minutes before
MEZ007-012-018-019-NHZ001>010-013-202225- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAY ME 328 PM EDT WED MAY 20 1998 ...STRONG THUNDERSTORMS POSSIBLE OVER NEW HAMPSHIRE AND WESTERN MAINE... A LINE OF THUNDERSTORMS WHICH DEVELOPED OVER EASTERN NEW YORK AND VERMONT DURING THE MID AFTERNOON HOURS WILL CROSS INTO NEW HAMPSHIRE AND WESTERN MAINE THIS EVENING. THE STRONGEST STORMS ARE EXPECTED ALONG THE CONNECTICUT RIVER VALLEY...THE STORZMS SHOULD THEN WEAKEN AS THEY MOVE TOWARD THE MAINE BORDER. THESE STORMS MAY BE ACCOMPANIED BY HAIL...STRONG WINDS AND HEAVY RAIN. PEOPLE OUT DOORS THIS EVENING SHOULD SEEK SHELTER IF THREATENING WEATHER APPROACHES. LULOFS
Nearby
Severe Thunderstorm Warnings in New Hampshire, 1998Every severe thunderstorm 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.