Alert archive / Delaware / Rip Current Statements in 2014

Rip Current Statement 1, NWS Philadelphia/Mount Holly

May 29, 2014Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this rip current statement at May 29, 2014, 5:38 AM EDT for Sussex County, Delaware. It took effect at May 29, 2014, 8:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: May 29, 2014, 5:38 AM EDT (09:38 UTC)
In effect from: May 29, 2014, 8:00 AM EDT
Expired: May 29, 2014, 8:23 PM EDT
In force: 12 hr
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 18 km from the middle of the area, began a volume at 09:38 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 9.6 hours before the alert went out and 84 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: 1 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 483 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 210 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

539 
WHUS41 KPHI 290938
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
538 AM EDT THU MAY 29 2014


DEZ004-300400-
/O.NEW.KPHI.RP.S.0001.140529T1200Z-140530T0400Z/
DELAWARE BEACHES-
538 AM EDT THU MAY 29 2014

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A HIGH RIP
CURRENT RISK...WHICH IS IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING.

* LOCATION...THE DELAWARE BEACHES.

* RISK OF RIP CURRENTS...HIGH. 

* SURF HEIGHT...5 TO 6 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH RISK OF RIP CURRENTS IMPLIES THAT WIND AND/OR WAVE
CONDITIONS WILL SUPPORT THE DEVELOPMENT OF VERY STRONG RIPS
CURRENTS. THESE RIP CURRENTS WILL BE LIFE THREATENING TO ANYONE
WHO ENTERS THE SURF. RIP CURRENTS ARE POWERFUL CHANNELS OF WATER
FLOWING QUICKLY AWAY FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW
SPOTS OR BREAKS IN THE SANDBAR AND IN THE VICINITY OF STRUCTURES
SUCH AS GROINS...JETTIES AND PIERS. HEED THE ADVICE OF LIFEGUARDS
AND THE BEACH PATROL. PAY ATTENTION TO FLAGS AND POSTED SIGNS.

&&

$$

1 follow-up statement

204 
WHUS41 KPHI 300023
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
823 PM EDT THU MAY 29 2014


DEZ004-300130-
/O.CAN.KPHI.RP.S.0001.000000T0000Z-140530T0400Z/
DELAWARE BEACHES-
823 PM EDT THU MAY 29 2014

...HIGH RIP CURRENT RISK IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
HIGH RIP CURRENT RISK FOR THIS EVENING.

$$

DRAG

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 28, 9:12 PM EDT	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	4 hr

Nearby

Rip Current Statements in Delaware, 2014 Every rip current statement in 2014

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.