Satellite Precipitation Estimates (TXUS20 KWBC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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
TXUS20 KNES 271038
SPENES
ZCZC NFDSPENES ALL
SPENES
TXZ000-
.
SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/27/14 1038Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404
LATEST DATA USED: GOES-13: 1015ZDS
.
LOCATION...SE TEXAS...
.
ATTN WFOS...LCH...HGX...CRP...
ATTN RFCS...WGRFC...
.
EVENT...DVLPG OFFSHORE CNVTN
.
SATELLITE ANALYSIS AND TRENDS...DVLPG OFFSHORE LOW WITHIN WRLY MOVING
WAVE OF SUB-TROPICAL MOISTURE ACROSS THE NRN GULF OF MX SHOULD ALLOW
FOR MOD-HVY RAINS ALONG THE TX COAST THIS MORNING. IR IMAGERY SHOWS
THE DVLPG LOW PRESSURE CENTERED CLOSE TO 26.79N/94.69W AND ADVANCING
SLOWLY W. CLOUD TOPS ASSCD WITH THE CNVTN ON THE NE SIDE OF THE LOW
HAVE RAPIDLY COOLED TO -70C. PW VALUES ASSCD WITH THE WAVE ARE ON THE
ORDER OF 2.3-2.5" BASED ON RECENT BLENDED TPW. THERE IS A THIN RIBBON
OF EXTREMELY DRY AIR LOCATED ACROSS E TX IS QUICKLY BEING SHOVED WWD
AND GOES SOUNDER PRODUCTS SHOW A MORE UNSTABLE/MOIST AIRMASS MOVING
ONSHORE TO REPLACE IT. FLOW ALOFT IS RATHER WEAK BUT GOES SATL WINDS DO
INDICATE DIFFLUENCE AT UPPER LVLS...MOST PROMINENT JUST S OF THE LA/TX
BORDER...AIDING THE STRONG CONVECTIVE GROWTH.
.
AN ANNOTATED SATELLITE GRAPHIC SHOWING THE HEAVY PRECIPITATION
THREAT AREA SHOULD BE AVAILABLE ON THE INTERNET ADDRESS LISTED
BELOW IN APPROXIMATELY 10-15 MINUTES.
.
SHORT TERM OUTLOOK VALID 1045-1645Z...HIGH CONFIDENCE FACTOR
IN SHORT TERM OUTLOOK...MOST OF THE MODELS HAVE AT LEAST SOME HEAVIER
PRECIP REACHING THE TX COAST DURING THE 12-18Z TIME PERIOD. AUTOMATED SATL
ESTIMATES SHOW UP TO 1.5" OF RAINFALL THAT HAS OCCURRED IN THE LAST HR
AND A 3 HR MAX OF 3.5" WITH THE CONVECTIVE BLOWUP OVER THE WRN GULF. GIVEN
SUCH DEEP MOISTURE AVAILABLE AND VERY HIGH EL`S BASED ON LAST NIGHT`S LCH
RAOB...BANDS OF DEEP CNVTN THAT APPROACH AND MOVE ACROSS THE TX COAST TDY
WILL QUICKLY BE ABLE TO PRODUCE INTENSE RAINFALL...WITH RATES OF 2-4"/HR
NOT OUT OF THE QUESTION. ONLY CONCERN IS HOW FAR INLAND THE HEAVIER
PRECIP REACHES AND WHETHER THE HIGH FFG LIMITS ANY FF THREAT. BELIEVE
BIGGEST THREAT WILL BE FOR COASTAL COUNTIES OF GALVESTON/BRAZORIA AND
POSSIBLY MATAGORDA AS WELL.
.
....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP)....
....NESDIS IS A MEMBER OF 12 PLANET....
.
FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE
PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL
SSDPrecip@noaa.gov
.
FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB:
http://www.ospo.noaa.gov/Products/atmosphere/spe/
.
FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB:
http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php
.
LAT...LON 2998 9510 2950 9343 2816 9601 2875 9686
.
NNNN


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