Alert archive / New Hampshire / Flood Watches in 2015

Flood Watch 2, NWS Gray, ME

June 27, 2015Carroll County, Coos County, Grafton County, New Hampshire

NWS Gray, ME issued this flood watch at Jun 27, 2015, 3:18 AM EDT for Carroll County, Coos County, Grafton County, New Hampshire. It took effect at Jun 28, 2015, 12:00 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Jun 27, 2015, 3:18 AM EDT (07:18 UTC)
In effect from: Jun 28, 2015, 12:00 AM EDT
Expired: Jun 28, 2015, 3:12 PM EDT
In force: 15 hr
Issued by: NWS Gray, ME
Flood severity: None

Counties Carroll County, NH, Coos County, NH, Grafton County, NH

The radar

The Portland,ME radar (KGYX), 100 km from the middle of the area, began a volume at 07:18 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

Chatham, MA (KCHH), launched 00:00Z, 7.3 hours before the alert went out and 303 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1441 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 3 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 flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before this flood watch went out at Jun 26, 11:18 PM EDT, 4 hours earlier.

Area forecast discussion, Jun 26, 11:18 PM EDT, 4 hours before

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Hazardous weather outlook, Jun 26, 3:26 AM EDT, 23 hours 52 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 3:19 AM EDT	Gale Watch	GYX		12 hr
Jun 27, 3:19 AM EDT	Gale Warning	GYX		36 hr
Jun 27, 3:13 PM EDT	High Surf Advisory	GYX	Cumberland, Knox, Lincoln, Sagadahoc, Waldo, York	29 hr
Jun 27, 3:20 PM EDT	Wind Advisory	GYX	Cumberland, Knox, Lincoln, Sagadahoc, Waldo, York	24 hr

Nearby

Flood Watches in New Hampshire, 2015 Every flood watch in 2015

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.