Alert archive / Maine / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 509

June 27, 200011 counties in Maine; Hillsborough County, Rockingham County, Strafford County, New Hampshire

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 2000, 2:15 PM EDT for 11 counties in Maine; Hillsborough County, Rockingham County, Strafford County, New Hampshire. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 2000, 2:15 PM EDT (18:15 UTC)
Expired
Jun 27, 2000, 8:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Androscoggin County, ME, Cumberland County, ME, Hancock County, ME, Kennebec County, ME, Knox County, ME, Lincoln County, ME, Penobscot County, ME, Piscataquis County, ME, Sagadahoc County, ME, Waldo County, ME, York County, ME, Hillsborough County, NH, Rockingham County, NH, Strafford County, NH

Warnings issued inside it

2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 27, 2:34 PM EDTSevere Thunderstorm WarningGYXWaldo41 min
Jun 27, 2:46 PM EDTSevere Thunderstorm WarningGYXKennebec, Lincoln44 min

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 6.3 hours before the alert went out and 30 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 2000-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 388 joules per kilogram.LCLLFCEL10008507005003002001001 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 2000-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
388 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
912 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
79 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.

Nearby

Severe Thunderstorm Watches in Maine, 2000Severe Thunderstorm Watches in New Hampshire, 2000Every severe thunderstorm watch in 2000

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.