Alert archive / New Hampshire / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 29, NWS Gray, ME

August 25, 1998Carroll County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Aug 25, 1998, 5:17 PM EDT for Carroll County, New Hampshire. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 25, 1998, 5:17 PM EDT (21:17 UTC)
Expired
Aug 25, 1998, 6:05 PM EDT
In force
48 min
Issued by
NWS Gray, ME
Area
Whole counties

County Carroll County, NH

The radar

The Portland,ME radar (KGYX), 76 km from the middle of the area, began a volume at 21:19 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.

What was reported inside it

TimeReportWhereRemark
Aug 25, 5:25 PM EDTThunderstorm Wind 50Ossipee, NH

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 9.3 hours before the alert went out and 76 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 1998-08-25Temperature 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 1998-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939587897117Sfc1 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
1531 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 9:01 PM EDTSevere Thunderstorm WarningGYXCumberland44 min
Aug 24, 9:29 PM EDTSevere Thunderstorm WarningGYXLincoln, Sagadahoc41 min
Aug 25, 5:29 PM EDTSevere Thunderstorm WarningGYXYork46 min
Aug 25, 5:52 PM EDTTornado WarningGYXYork28 min
Aug 25, 6:05 PM EDTSevere Thunderstorm WarningGYXYork50 min
Aug 25, 6:12 PM EDTSevere Thunderstorm WarningGYXCumberland48 min
Aug 25, 6:59 PM EDTSevere Thunderstorm WarningGYXCumberland21 min
Aug 25, 7:22 PM EDTSevere Thunderstorm WarningGYXSagadahoc18 min
Aug 24, 8:20 PM EDTSevere Thunderstorm WarningGYXBelknap, Carroll45 min
Aug 25, 5:05 PM EDTSevere Thunderstorm WarningGYXMerrimack, Rockingham60 min

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.