Alert archive / Maine / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 49, NWS Caribou, ME

August 18, 2002Piscataquis County, Somerset County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Aug 18, 2002, 5:43 PM EDT for Piscataquis County, Somerset County, Maine. It was in force for 62 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
Aug 18, 2002, 5:43 PM EDT (21:43 UTC)
Expired
Aug 18, 2002, 6:45 PM EDT
In force
62 min
Issued by
NWS Caribou, ME
Area
Whole counties

Counties Piscataquis County, ME, Somerset County, ME

The nearest sounding before it

Caribou, ME (KCAR), launched 12:00Z, 9.7 hours before the alert went out and 182 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, Caribou, ME at 12:00Z on 2002-08-18Temperature 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, Caribou, ME at 12:00Z on 2002-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
1275 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 2:05 PM EDTSevere Thunderstorm WarningCARPiscataquis40 min
Aug 18, 3:22 PM EDTSevere Thunderstorm WarningCARAroostook38 min
Aug 18, 4:05 PM EDTSevere Thunderstorm WarningCARPiscataquis55 min
Aug 18, 4:58 PM EDTSevere Thunderstorm WarningCARAroostook62 min
Aug 18, 6:53 PM EDTSevere Thunderstorm WarningCARAroostook52 min

Nearby

Severe Thunderstorm Warnings in Maine, 2002Every severe thunderstorm warning in 2002

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.