Alert archive / Maine / Flash Flood Warnings in 2010

Flash Flood Warning 4, NWS Caribou, ME

July 12, 2010Piscataquis County, Maine

NWS Caribou, ME issued this flash flood warning at Jul 12, 2010, 3:37 PM EDT for Piscataquis County, Maine. It was in force for 89 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: Jul 12, 2010, 3:37 PM EDT (19:37 UTC)
Expired: Jul 12, 2010, 5:06 PM EDT
In force: 89 min
Issued by: NWS Caribou, ME
Area: Storm-based polygon
Flood severity: None

County Piscataquis County, ME

The radar

The Caribou radar (KCBW), 116 km from the middle of the area, began a volume at 19:39 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.

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 7.6 hours before the alert went out and 230 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: 850 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1069 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Caribou, ME wrote its last area forecast discussion before this flash flood warning went out at Jul 12, 10:47 AM EDT, 4 hours 50 minutes earlier.

Area forecast discussion, Jul 12, 10:47 AM EDT, 4 hours 50 minutes before

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Hazardous weather outlook, Jul 12, 10:03 AM EDT, 5 hours 34 minutes before

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In the hours before

Special weather statement, Jul 12, 3:25 PM EDT, 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 6:08 AM EDT	Dense Fog Advisory	CAR	Hancock, Washington	2 hr

Nearby

Flash Flood Warnings in Maine, 2010 Every flash flood warning in 2010

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; radar from the NEXRAD Level II archive.