Quantitative Precipitation Forecast
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FOUS30 KWBC 240640
QPFERD

EXCESSIVE RAINFALL DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
139 AM EST WED DEC 24 2014

...VALID 06Z WED DEC 24 2014 - 12Z THU DEC 25 2014...
...REFERENCE AWIPS GRAPHIC UNDER...DAY 1 EXCESSIVE RAINFALL...


SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
25 N KMIS 15 S GPT 20 NNE BIX 40 NNE BFM 30 W TOI 25 NNE TOI
20 SSE AUO 10 NE CSG 20 ENE FFC 10 NNW AHN 10 WNW 27A 25 SSW GRD
25 SSW AGS LHW 20 NW VQQ 65 SSW CTY 85 SW AAF 10 S KVOA
10 NW KVKY 25 N KMIS.

SLIGHT RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
EWB 10 ENE WST 15 W GON 15 E HPN 20 NW BLM TTN PTW 12N 15 S MGJ
35 NE POU ORH BED 10 W BVY 20 ESE BVY EWB.

MODERATE RISK OF RAINFALL EXCEEDING FFG TO THE RIGHT OF A LINE FROM
10 NNW DQH 35 ESE VLD 30 W CTY 35 SSE AAF 40 SSW PAM 30 SSW DTS
10 NNW HRT 25 W OZR 15 N 11J 25 NW ABY 25 SW EZM 10 NNW DQH.




SE U.S/NRN FL...
THREAT OF HEAVY CONVECTIVE TO EXCESSIVE RAINS WILL CONTINUE
THROUGH WED MRNG ACRS THIS REGION AS POWERFUL COLD FRONT CONTINUES
TO TAP UNSEASONABLY WARM/MOIST AIR LEADING TO BANDS OF STG
CONVECTIVE RAINS THAT WILL GRADUALLY PUSH EWD ACRS THE REGION THRU
WED AFTN.  LATEST RADAR IMAGERY SHOWED EARLIER BOWING SQLN HAVING
SLOWED ON ITS SRN END ACRS THE WRN FL PANHANDLE AND WITH COLD
FRONT STILL BACK ACRS LA/SRN MS AS OF 06Z...EXPECT POTNL FOR SOME
VERY SLOW BANDS OF STG CONVECTION WITH HEAVY RAINS WILL CONTINUE
TO PUSH ACRS PARTS OF THE SOUTHEAST THIS MRNG WITH HEAVIEST RAINS
EXPECTED FROM THE FL PANHANDLE INTO SRN AL/SRN GA WHERE ADDITIONAL
RAINFALL AMOUNTS OF 2 TO 3+ INCHES ARE EXPECTED.  WITH SOME AREAS
HAVING ALREADY PICKED UP OVER 7 INCHES OF RAIN IN THE PAST 24
HRS...THESE ADDITIONAL RAINS ARE LIKELY TO EXACERBATE ANY RUNOFF
ISSUES.

NRN NJ INTO SRN NEW ENGLAND...
STG DEEP LAYERED SLY FLOW WITH 85H WINDS IN EXCESS OF 50 KTS ALONG
WITH SURGE OF PWS BETWEEN 1.5 TO 1.75 INCHES WILL LEAD TO STG MSTR
FLUX INTO SRN NEW ENGLAND.  WARM FRONT MOVING NWD TOWARD THE SRN
NEW ENGLAND COAST BY WED EVENING WILL PROVIDE BNDRY FOR STG
ISENTROPIC LIFT AND WITH HIGHEST PWS AND LOW LEVEL JET BECOMING
NEARLY COINCIDENT WITH THE FRONT...EXPECT PONTL FOR SOME SLOW
MOVING HEAVIER RAIN BANDS TO SET UP JUST NORTH OF THE BNDRY FROM
NRN NJ INTO PARTS OF SRN NEW ENGLAND.  RAINFALL AMOUNTS OF UP TO
1.5 INCHES IN SEVERAL HOUR WILL BE PSBL AND COULD APCH OR EVEN
EXCEED LOCAL FFG VALUES...ESPECIALLY OVER NRN NJ.  EXPECT THREAT
OF EXCESSIVE RAINS TO LINGER UNTIL COLD FRONT PUSHES ACRS THE
REGION CHRISTMAS MRNG.

SULLIVAN

$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.