Alert archive / Maine / Flood Watches in 2018

Flood Watch 3, NWS Caribou, ME

February 4, 2018Hancock County, Washington County, Maine

NWS Caribou, ME issued this flood watch at Feb 4, 2018, 6:10 PM EST for Hancock County, Washington County, Maine. It took effect at Feb 5, 2018, 12:00 AM EST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Feb 4, 2018, 6:10 PM EST (23:10 UTC)
In effect from
Feb 5, 2018, 12:00 AM EST
Expired
Feb 5, 2018, 5:34 PM EST
In force
18 hr
Issued by
NWS Caribou, ME
Flood severity
None

Counties Hancock County, ME, Washington County, ME

The radar

The Caribou radar (KCBW), 142 km from the middle of the area, began a volume at 23:09 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, 11.2 hours before the alert went out and 205 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 2018-02-04Temperature 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 2018-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 500 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
961 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
500 m²/s²
0-3 km storm-relative helicity
457 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
Feb 4, 3:28 AM ESTWinter Weather AdvisoryCARAroostook, Penobscot, Piscataquis, Somerset30 hr
Feb 4, 3:29 AM ESTWind AdvisoryCARHancock, Washington24 hr

Nearby

Flood Watches in Maine, 2018Every flood watch in 2018

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.