Alert archive / Maine / Beach Hazards Statements in 2020

Beach Hazards Statement 13, NWS Gray, ME

July 31, 2020Knox County, Waldo County, Maine

NWS Gray, ME issued this beach hazards statement at Jul 31, 2020, 3:41 AM EDT for Knox County, Waldo County, Maine. It took effect at Jul 31, 2020, 8:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jul 31, 2020, 3:41 AM EDT (07:41 UTC)
In effect from
Jul 31, 2020, 8:00 AM EDT
Expired
Jul 31, 2020, 8:00 PM EDT
In force
12 hr
Issued by
NWS Gray, ME

Counties Knox County, ME, Waldo County, ME

The radar

The Portland,ME radar (KGYX), 100 km from the middle of the area, began a volume at 07:42 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 00:00Z, 7.7 hours before the alert went out and 101 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 00:00Z on 2020-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 123 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 00:00Z on 2020-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
123 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1473 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

807 
WHUS41 KGYX 310741
CFWGYX

Coastal Hazard Message
National Weather Service Gray ME
341 AM EDT Fri Jul 31 2020

MEZ027-028-311545-
/O.NEW.KGYX.BH.S.0013.200731T1200Z-200801T0000Z/
Knox-Coastal Waldo-
341 AM EDT Fri Jul 31 2020

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

* WHAT...Please check with state and local authorities regarding
  guidelines for allowed activities. The warm air temperatures in
  the 80s may cause people to underestimate the dangers of the
  cold water temperatures which are currently only in the low 50s.

* WHERE...Coastal beaches of Knox and Waldo Counties.

* WHEN...From 8 AM EDT this morning through this evening.

* IMPACTS...The cold water temperatures can quickly cause
  hypothermia to anyone immersed in the water. When the water
  temperature is below 60 degrees, the average submerged person
  could lose dexterity within minutes and be unable to accomplish
  simple tasks. Anyone on boats or paddlecraft should use extreme
  caution to avoid this threat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazards Statement is issued on days when a significant
number of boats and paddlecraft are expected to be out on the
water and when warm air temperatures may cause people to
underestimate the danger of the cold water. Paddle smart from the
start. Always wear your life jacket. Be aware of wind conditions,
tides, and localized currents.

&&

$$

Hanes
1 follow-up statement
160 
WHUS41 KGYX 311603
CFWGYX

Coastal Hazard Message
National Weather Service Gray ME
1203 PM EDT Fri Jul 31 2020

MEZ027-028-010000-
/O.CON.KGYX.BH.S.0013.000000T0000Z-200801T0000Z/
Knox-Coastal Waldo-
1203 PM EDT Fri Jul 31 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Please check with state and local authorities regarding
  guidelines for allowed activities. The warm air temperatures
  near 80 may cause people to underestimate the dangers of the
  cold water temperatures which are currently in the upper 50s.

* WHERE...Knox and Coastal Waldo Counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...The cold water temperatures can quickly cause 
  hypothermia to anyone immersed in the water. When the water 
  temperature is below 60 degrees, the average submerged person 
  could lose dexterity within minutes and be unable to accomplish 
  simple tasks. Anyone on boats or paddlecraft should use extreme 
  caution to avoid this threat.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazards Statement is issued on days when a significant
number of boats and paddlecraft are expected to be out on the
water and when warm air temperatures may cause people to
underestimate the danger of the cold water. Paddle smart from the
start. Always wear your life jacket. Be aware of wind conditions,
tides, and localized currents.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 8:14 PM EDTSpecial Weather StatementGYXOxford31 min
Jul 30, 9:19 PM EDTSpecial Weather StatementGYXAndroscoggin26 min
Jul 30, 9:49 PM EDTSpecial Weather StatementGYXAndroscoggin41 min

Nearby

Beach Hazards Statements in Maine, 2020Every beach hazards statement in 2020

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.