Skip Navigation Links weather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center

 
 

 

Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   QPF
   PQPF
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Air Quality
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/
Warnings

Satellite and Radar Imagery
   Satellite Images
   National Radar
Product Archive
WPC Verification
   QPF
   Medium Range
   Model Diagnostics
   Event Reviews
International Desks
Development and Training
   Development
WPC Overview
   About the WPC
   Staff
   WPC History
   Accomplishments
   Other Sites
   FAQs
Meteorological Calculators
Contact Us
   About Our Site
 
USA.gov is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
 
Excessive Rainfall Discussion
 
(Caution: Version displayed is not the latest version. - Issued 0554Z Apr 19, 2014)
 
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
 
Abbreviations and acronyms used in this product
 
Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White


EXCESSIVE RAINFALL DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
154 AM EDT SAT APR 19 2014

...VALID 06Z SAT APR 19 2014 - 12Z SUN APR 20 2014...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...


SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
40 SE SSC 25 SE FLO 15 NW CRE 10 ENE CRE 25 SSE CRE 65 S MYR
85 SE CHS 75 SE HXD 55 SE HXD 25 SSE HXD HXD 30 NNE NBC
30 NW CHS 40 SE SSC.


KEPT SLIGHT RISK AREA MAINLY THRU THE REMAINDER OF THE NIGHT ALONG
COASTAL AREAS OF SC. THERE WILL CONTINUE TO BE A THREAT FOR
FLOODING RAINS THRU THE EARLY MORNING HOURS OVER EASTERN SC..WHERE
UP TO 40KTS OF H85 INFLOW OFF THE ATLANTIC CONTINUES TO BRING IN
PWS IN EXCESS OF 1.50 INCHES AND WHERE A FAVORABLE UPPER DIFFLUENT
FLOW AHEAD OF THE EASTERN GULF COAST SYSTEM SUPPORTS ENHANCED
LARGE SCALE LIFT.  BEST INSTABILITY IS EXPECTED TO REMAIN
OFFSHORE..SO HEAVIER RAINFALL RATES WILL TEND TO DIMINISH TOWARD
COASTAL AREAS AND INLAND.  THAT SAID...STILL EXPECT POTNL FOR SOME
LOCAL .50 TO 1 INCH RAINFALL AMOUNTS IN AN HOUR OR SO WITH ISOLD
AMOUNTS UP TO 2 INCHES THROUGH THE MRNG HOURS.  THESE AMOUNTS ON
TOP OF EARLIER HEAVY RAINS MAY LEAD TO SOME ISOLD RUNOFF ISSUES
BEFORE BEST LOW LEVEL CONFLUENT MSTR AXIS SHIFTS NEWD.  

SULLIVAN