514  
FOUS30 KWBC 020101 CCA  
QPFERD  
 
EXCESSIVE RAINFALL DISCUSSION...CORRECTED  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
901 PM EDT THU OCT 1 2026  
 
DAY 1  
VALID 01Z FRI OCT 02 2026 - 12Z FRI OCT 02 2026  
 
...THERE IS A MODERATE RISK OF EXCESSIVE RAINFALL ACROSS PORTIONS  
OF THE SOUTHERN PLAINS...  
 
001Z UPDATE...  
ON-GOING HEAVY TO EXCESSIVE RAINFALL WILL CONTINUE INTO THE  
OVERNIGHT HOURS ALONG A PLUME OF DEEP MOISTURE EXTENDING FROM THE  
GULF OF AMERICA NORTHWARD INTO PORTIONS OF THE MISSISSIPPI VALLEY.  
GREATEST RAINFALL RATES ARE LARGELY CONFINED TO SOUTHERN AND  
CENTRAL TEXAS AS OF EARLY EVENING. LATEST RUNS OF THE HRRR AND THE  
WOFS KEEPS THE FOCUS FOR INTENSE RAINFALL RATES THERE INTO THE  
NIGHT WHERE ON-SHORE FLOW OFF THE GULF WILL ENHANCE MOISTURE FLUX  
CONVERGENCE. THE LINE HAS BEEN A BIT MORE PROGRESSIVE THAN SHOWN  
BY THE GUIDANCE SO THE EASTERN BOUNDARY WAS EXPANDED SOMEWHAT. THE  
THREAT OF EXCESSIVE RAINFALL EXTENDS NORTHWARD FROM THERE INTO  
PORTIONS OF THE PLAINS INTO THE SOUTHERN GREAT LAKES AND FAR  
WESTERN OHIO VALLEY. THE MOISTURE IS NOT AS DEEP NOR IS THE  
INSTABILITY AS STRONG AS THE AREA TO THE SOUTH...BUT THE STRENGTH  
OF MID- LEVEL FORCING (AN UPPER CIRCULATION CENTER OVER KANSAS AS  
OF 02/00Z UPPER AIR ANALYSIS AND SATELLITE IMAGERY COMBINED WITH A  
BAROCLINIC LEAF SIGNATURE ALOFT TRANSITING THE UPPER PLAINS  
FARTHER EAST) IS ENOUGH TO SUSTAIN SUFFICIENTLY INTENSE RAINFALL  
RATES FOR A LONG ENOUGH DURATION TO RESULT IN EXCESSIVE RAINFALL.  
 
BANN  
 
1930Z UPDATE: JUST SOME MINOR UPDATES TO REFLECT LATEST  
OBSERVATIONAL AND HIGH RES MODEL TRENDS. MAIN CHANGE WAS TO TRIM  
THE NORTHWESTERN EXTENT OF THE MDT RISK ACROSS PORTIONS OF  
SOUTHEAST OK AND FAR NORTHEAST TX. OTHERWISE THE EVENT REMAINS ON  
TRACK WITH THE 16Z DISCUSSION FROM BELOW STILL VALID.  
 
CHENARD  
 
..16Z UPDATE..  
 
TEXAS: A SLOWLY PROPAGATING LINE OF THUNDERSTORMS ACROSS THE HILL  
COUNTRY AND THE I-35 CORRIDOR IS BRINGING HEAVY RAINFALL AND FLASH  
FLOODING THIS MORNING. THIS LINE OF STORMS IS EXPECTED TO CONTINUE  
PROPAGATING EASTWARD THROUGH THE AFTERNOON AND SUPPORT THE  
POTENTIAL FOR A LOCALLY SIGNIFICANT FLASH FLOOD THREAT. LATE  
AFTERNOON INTO THE EVENING AND OVERNIGHT, THERE REMAINS UNCERTAINTY  
ON THE REFORMATION OF STORMS ACROSS THE HILL COUNTRY AND THE I-35  
CORRIDOR. A STALLING FRONT ACROSS THE REGION, AN INCREASING LOW  
LEVEL JET OF MOISTURE TRANSPORT THROUGH THE OVERNIGHT PERIOD, AND  
UPPER-LEVEL DIVERGENCE FROM A RIGHT ENTRANCE JET STREAK IN  
ASSOCIATION WITH AN UPPER-LEVEL TROUGH NEARBY WILL SUPPORT A  
FAVORABLE ENVIRONMENT FOR VERY HEAVY RAINFALL IF THUNDERSTORMS CAN  
REIGNITE OVER CENTRAL TEXAS. IF THE LINE OF STORMS THIS MORNING AND  
AFTERNOON MAINTAINS ORGANIZATION AND SWEEPS FARTHER EASTWARD  
ACROSS TEXAS (VIA COLD POOLS), THE GREATEST INSTABILITY AND LOW  
LEVEL MOISTURE MAY PUSH OUT OF THE HILL COUNTRY REGION AND INHIBIT  
A HIGHER END FLASH FLOOD EVENT. IF THE LINE OF STORMS WEAKEN OR  
PROPAGATE EASTWARD SLOWER,INSTABILITY AND LOW LEVEL MOISTURE WILL  
NOT BE AS WORKED OVER AND A GREATER THREAT OF FLASH FLOODING MAY  
EXIST OVER SOUTHERN TEXAS INTO THE AUSTIN/SAN ANTONIO METRO REGION  
FROM THUNDERSTORMS THAT DO REFORM. THE HIGHER CONFIDENCE FOR AREAS  
OF 6+ INCHES OF RAIN IS ACROSS SOUTHERN TEXAS NEAR THE RIO GRANDE  
REGION WHERE THE GREATEST INSTABILITY AND LOW LEVEL MOISTURE  
EXISTS. THE ONGOING LINE OF STORMS IS EXPECTED TO STALL OVER THE  
AREA THIS EVENING INTO THE OVERNIGHT IN ADDITION TO DEVELOPING  
THUNDERSTORM ALONG AND NEAR THE STATIONARY FRONT.  
 
IN TERMS OF RAINFALL, MODEL GUIDANCE IS FAIRLY WET WITH A  
CONSISTENT SIGNAL AMONG ENSEMBLE MEANS OF 3-6 INCHES FROM THE  
AUSTIN/SAN ANTONIO METRO AREA TO SOUTH TEXAS WITH CAMS HIGHLIGHTING  
THE POTENTIAL FOR LOCAL MAXIMA GREATER THAN 10 INCHES IN THE  
HIGHEST END QPF SCENARIOS. SOME OF THE HIGHER END FLASH FLOODING  
IMPACTS IS EXEMPLIFIED BY 12Z HREF PROBABILITIES OF 40-60% OF 24 HR  
QPF EXCEEDING 8 INCHES ACROSS THIS CORRIDOR. THE FLASH FLOOD  
THREAT REMAINS CONSISTENT WITH A MODERATE RISK AND THE EXPECTATION  
FOR NUMEROUS FLASH FLOODING. LIFE THREATENING AND HIGH END FLASH  
FLOODING IMPACTS ARE POSSIBLE WHERE THE HIGHER END RAINFALL TOTALS  
OCCUR, PARTICULARLY IF IT FALLS OVER AN URBAN REGION WHERE WATER  
RUNOFF IS ENHANCED. THERE WAS NOT ENOUGH CONFIDENCE IN A HIGH RISK  
GIVEN HIGH END FLASH FLOOD IMPACTS SHOULD STAY ISOLATED IN NATURE,  
AND CONFIDENCE IN EXACT LOCATION OF HIGHEST RAINFALL TOTALS IS  
UNCERTAIN.  
 
FLORIDA: A MARGINAL RISK WAS ISSUED ALONG THE EAST COAST FROM  
MIAMI TO THE SPACE COAST FOR THIS AFTERNOON. TROPICAL MOISTURE  
STREAMING ACROSS FLORIDA WILL BRING LOCALLY HEAVY RAINFALL AND  
HOURLY RAINFALL RATES THAT EXCEED AN INCH PER HOUR, WHICH WILL  
BRING AN ISOLATED FLASH FLOOD RISK TO THE URBANIZED I-95 CORRIDOR.  
 
WILDER  
   
..PREVIOUS DISCUSSION  
 
LATEST TRENDS IN GUIDANCE SIGNAL A REPUTABLE CHANCE FOR  
SIGNIFICANT RAINFALL OVER MUCH OF THE MORE FLASH FLOOD PRONE AREAS  
OF SOUTH-CENTRAL TEXAS, INCLUDING THE I-35 CORRIDOR FROM DALLAS-  
FORT WORT TO AUSTIN-SAN ANTONIO WITH A SECONDARY MAX SITUATED  
ALONG THE SOUTHERN RIO GRANDE VILLAGE. WIDESPREAD 3+" RAINFALL  
OPPORTUNITIES WITH A SWATH OF 50-90% PROBABILITIES FOR THE 3-INCH  
THRESHOLD. RAINFALL POTENTIAL OVER THE HILL COUNTRY IS THE MOST  
NOTABLE AREA FOR APPRECIABLE IMPACTS AS ANOTHER PERIOD WHERE 2-4",  
LOCALLY HIGHER TOTALS ARE PLAUSIBLE LEADING TO LOCALLY SIGNIFICANT  
FLASH FLOOD PROSPECTS GIVEN THE SENSITIVITY OF THE AREA IN GENERAL.  
HOURLY RATES LIKELY BETWEEN 1-2"/HR WITH AS HIGH AS 3-4"/HR FOR  
INTRA- HOUR RATE POTENTIAL, A SIGNATURE NOTORIOUS FOR ELEVATED  
FLASH FLOOD CONCERNS WITHIN THE HILL COUNTRY AND THE I-35 CORRIDOR.  
GREATER THAN 5" PROBS ARE VERY HIGH OVER THAT AREA IN DEEP SOUTH  
TEXAS WITH A LARGE AREAL COVERAGE OF 60-90% SITUATED JUST SOUTH OF  
SAN ANTONIO INTO THE RIO GRANDE VILLAGE. THE FRONT WILL BE SLOW TO  
PROGRESS THROUGH THE STATE, SO THE CONVERGENCE PATTERN ALONG AND  
JUST AHEAD OF THE FRONT WILL BE LONG- LASTING, CREATING AN EXTENDED  
PERIOD FOR POTENTIAL TRAINING BEFORE THE FRONTAL PASSAGE OCCURS.  
THE MODERATE RISK WAS MAINTAINED FROM SOUTH TEXAS TO SOUTHEAST  
OKLAHOMA.  
 
PROLONGED DIFFLUENT FLOW OVER THE PLAINS INTO THE MIDWEST SETS THE  
STAGE FOR HEAVY RAINFALL OVER A BROAD AREA OF UNCHARACTERISTICALLY  
HIGH PW VALUES THANKS TO AN AIRMASS COINCIDENT WITH THE REMNANTS  
OF TROPICAL CYCLONE POLO. PW VALUES BETWEEN 2-2.25" OVER THE  
MIDWEST AND MID- MISSISSIPPI VALLEY WILL BE UPWARDS OF 3-4 STANDARD  
DEVIATIONS ABOVE NORMAL, AN ANOMALY THAT WILL LIKELY FLIRT WITH  
SOME OF THE DAILY AND EVEN MONTHLY MAXIMA FOR PWS OVER THIS GENERAL  
AREA. A BROAD SLIGHT RISK COVERS TEXAS TO WISCONSIN AND NORTHEAST  
INDIANA FOR SCATTERED TO POTENTIALLY WIDESPREAD FLASH FLOODING. MODELS  
ARE CONSISTENT IN THE HEAVIEST PRECIPITATION FOOTPRINT OCCURRING  
OVER THE FIRST HALF OF THE FORECAST PERIOD OVER IOWA INTO SOUTHERN  
ILLINOIS AS THE REMNANT ENERGY AND ANOMALOUS MOISTURE FROM POLO  
WILL STILL BE PRESENT WITH WIDESPREAD THUNDERSTORM ACTIVITY LIKELY  
TO OCCUR OVER THE COURSE OF THURSDAY MORNING BEFORE THE FRONT FROM  
THE NORTHWEST FINALLY PUSHES THROUGH THE REGION. THIS WILL END THE  
THREAT OVER IOWA/WISCONSIN/NORTHERN ILLINOIS, BUT NOT BEFORE  
SCATTERED FLASH FLOOD CONCERNS OVER THE POPULATION CENTERS BASED IN  
THE AREA FROM EASTERN IOWA INTO ADJACENT ILLINOIS. WIDESPREAD 1-3"  
OF ADDITIONAL RAINFALL IS FORECAST FOR THESE AREAS. PRIMING TODAY  
WILL SET THE STAGE FOR MORE FLASH FLOOD PROSPECTS THE FIRST PART OF  
THE D2 WITH THE HEAVIEST RAINFALL.  
 
CAMPBELL/KLEEBAUER  
 
 
DAY 2  
VALID 12Z FRI OCT 02 2026 - 12Z SAT OCT 03 2026  
 
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL ACROSS PORTIONS OF  
SOUTHERN/CENTRAL TEXAS...  
 
..20Z UPDATE..  
 
THE MAIN CHANGE IN THE ERO FORECAST ACROSS TEXAS WAS TO EXPAND THE  
SLIGHT RISK NORTHWARD TO ENCOMPASS THE DALLAS-FORT WORTH METRO  
REGION. CONVECTION IS LIKELY TO BE ONGOING IN THE MORNING HOURS  
ACROSS THE I-35 CORRIDOR FROM CENTRAL TEXAS, INCLUDING PARTS OF THE  
HILL COUNTRY, TO SOUTHERN TEXAS AND THE RIO GRANDE AS STORMS  
REFORM OVERNIGHT INTO THE EARLY MORNING ALONG AND AHEAD OF A  
QUASI- STATIONARY FRONTAL BOUNDARY. AFTERNOON GUIDANCE SHOWS AN  
ADDITIONAL 1-3 INCHES OF RAINFALL FROM THUNDERSTORMS THAT FORM OVER  
CENTRAL AND SOUTHERN TEXAS WITH INSTABILITY ON THE ORDER OF  
500-2000 J/KG, PWATS OVER 2 INCHES, AND A STALLED FRONT NEARBY  
SERVING AS A SOURCE OF LIFT. THIS RAIN WILL FALL OVER AREAS THAT  
WILL HAVE RECEIVED SEVERAL INCHES OF RAIN TODAY AND HAVE LOWERED  
FLASH FLOOD GUIDANCE EXCEEDANCE VALUES. THIS WILL INCREASE THE  
LIKELIHOOD OF OBSERVING IMPACTS FROM EXCESSIVE RAINFALL.  
 
ACROSS THE SOUTHEAST,THE MARGINAL RISK WAS TRIMMED OUT OF MUCH OF  
INTERIOR LOUISIANA, MISSISSIPPI, AND ALABAMA. THE EDIT WAS MADE IN  
RESPONSE TO LOWERING QPF AMOUNTS IN MODEL GUIDANCE. THE MARGINAL  
RISK ERO ALONG THE IMMEDIATE GULF COAST FROM LOUISIANA TO THE  
FLORIDA PANHANDLE REMAINS ON TRACK AS TROPICAL MOISTURE LIFTS  
NORTHWARD INTO THE REGION AND SUPPORTS 1-2 INCH HOURLY RAINFALL  
RATES WITH AN ISOLATED FLASH FLOOD RISK.  
 
WILDER  
   
..PREVIOUS DISCUSSION  
 
THE FRONTAL BOUNDARY WILL BE LINGERING IN THE REGION TO PROVIDE  
ONE LAST ROUND OF APPRECIABLE RAINFALL BEFORE CONDITIONS IMPROVE  
MOVING INTO THE WEEKEND. AN ADDITIONAL 2-4" OF RAINFALL POSSIBLE FROM  
LAREDO TO MCALLEN AND AREAS JUST INLAND WITH A SECONDARY MAX  
POSSIBLE OVER EAST-CENTRAL TEXAS, MAINLY JUST EAST OF THE I-35 AS  
THE FRONT FINALLY MOVES THROUGH ON FRIDAY MORNING. A SLIGHT RISK  
AREA COVER MUCH OF SOUTH TEXAS, EASTERN PORTIONS OF THE HILL  
COUNTRY AND PARTS OF EASTERN TEXAS.  
 
FARTHER NORTH AND EAST, THE COLD FRONT WILL CONTINUE TO ADVANCE  
SOUTHEAST THROUGH THE OHIO VALLEY, WITH SOME POTENTIAL FOR HEAVY  
RAIN ALONG AND AHEAD OF THE BOUNDARY. SUPPORTED BY DEEP SOUTHERLY  
FLOW ALONG THE WESTERN EXTENT OF THE SUBTROPICAL RIDGE, GUIDANCE  
CONTINUES TO SHOW A BROADENING POOL OF ANOMALOUS MOISTURE SPREADING  
FROM THE GULF COAST INTO THIS BOUNDARY. MID- LEVEL ENERGY EMBEDDED  
WITHIN THE FLOW MAY HELP PRODUCE AREAS OF HEAVY RAIN, WITH SOME  
GUIDANCE INDICATING HEAVY AMOUNTS ALONG THE GULF COAST FROM  
MISSISSIPPI TO THE FLORIDA PANHANDLE THIS PERIOD. A BROAD MARGINAL  
SPANS FROM TEXAS ACROSS THE GULF TO WESTERN FLORIDA AND THEN  
NORTHEAST TO OHIO AND KENTUCKY. THESE AREAS WILL LIKELY SEE SOME  
HEAVIER RAINFALL RATES >2"/HR CONSIDERING THE ENVIRONMENT AND  
AVAILABLE INSTABILITY IN THE AREA, HOWEVER THE FFG'S ARE MUCH  
HIGHER IN THESE ZONES WITH THE MOST NOTABLE AREAS OF IMPACT IN THE  
MORE URBANIZED AREAS ALONG THE GULF COAST FROM PANAMA CITY OVER TO  
GALVESTON.  
 
CAMPBELL/KLEEBAUER  
 
 
DAY 3  
VALID 12Z SAT OCT 03 2026 - 12Z SUN OCT 04 2026  
 
..THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL ALONG THE CENTRAL  
GULF COAST...  
 
..20Z UPDATE..  
 
SIMILAR TO THE DAY 2 FORECAST, THE SLIGHT RISK WAS TRIMMED OUT OF  
THE INTERIOR SOUTHEAST ACROSS MISSISSIPPI, ALABAMA, AND GEORGIA IN  
AREAS WHERE ENSEMBLE QPF WAS GENERALLY LESS THAN AN INCH. THIS ALSO  
ALIGNS WITH THE GREATEST MOISTURE AND INSTABILITY REMAINING CLOSER  
TO THE GULF COAST. THE SLIGHT RISK REMAINS INTACT ACROSS THE  
CENTRAL GULF COAST AS A MID-LEVEL DISTURBANCE APPROACHES THE REGION  
AND BRINGS A TROPICAL MOISTURE PLUME ACROSS THE REGION WITH PWATS  
OVER 2 INCHES POSSIBLE. THIS DISTURBANCE WILL SUPPORT LOCALLY HEAVY  
RAINFALL CAPABLE OF BRINGING SCATTERED INSTANCES OF FLASH FLOODING  
AND PONDING TO URBANIZED AND LOW LYING REGIONS.  
 
THE MARGINAL RISK WAS ALSO EXPANDED EASTWARD ACROSS THE CAROLINAS  
WHERE A MID-LEVEL WAVE AND SURFACE FRONTAL BOUNDARY MAY BRING  
INCREASED PRECIPITATION ON THE ORDER OF 1-2 INCHES WITH THE  
POTENTIAL FOR LOCALLY HIGHER AMOUNTS POSSIBLE. THE SIGNAL FOR  
HIGHER QPF HAS INCREASED IN TIME ACROSS THE REGION, BUT LOWER  
INSTABILITY FORECAST IN THE REGION AND RELATIVELY HIGH FLASH FLOOD  
GUIDANCE PRECLUDES A SLIGHT RISK INTRODUCTION AT THIS TIME.  
 
WILDER  
   
..PREVIOUS DISCUSSION  
 
DURING THIS PERIOD THE UPPER LEVEL TROUGH WILL CONTINUE TO TRACK  
TOWARD THE EAST WHILE SLOWLY AMPLIFYING ALONG THE WAY TO THE  
EASTERN U.S. DEEP, ANOMALOUS MOISTURE (2-2.5+ STD DEV ABOVE  
NORMAL) WILL BE DRAWN ALONG AND AHEAD OF A WAVY FRONT THAT IS  
FORECAST TO EXTEND SOUTHWESTWARD FROM THE SOUTHERN APPALACHIANS  
BACK INTO THE WESTERN GULF EARLY IN THE PERIOD. MID- TO-UPPER LEVEL  
ENERGY MOVING ALONG THE BASE OF THE BROADER SCALE TROUGH WILL HAVE  
THE POTENTIAL TO PRODUCE ORGANIZED, HIGHLY- EFFICIENT STORMS,  
RESULTING IN AREAS OF HEAVY AMOUNTS. HEAVY RAINFALL IS EXPECTED TO  
ALIGN ALONG AND AHEAD OF THE FRONTAL BOUNDARY WHERE THE AXIS OF  
DEEPEST MOISTURE WILL BE PRESENT. A SLIGHT RISK FOR EXCESSIVE  
RAINFALL AND POTENTIAL FLASH FLOODING WAS MAINTAINED FOR MUCH OF  
THE CENTRAL GULF COAST AND NORTHWARD ACROSS MISSISSIPPI, NORTHERN  
ALABAMA AND NORTHERN GEORGIA.  
 
CAMPBELL/PEREIRA  
 
 
DAY 4 AND DAY 5  
 
VALID 12Z SUN OCT 04 2026 - 12Z TUE OCT 06 2026  
 
...THERE IS A SLIGHT RISK OVER PARTS OF THE CENTRAL GULF COAST  
INTO PARTS OF THE SOUTHEAST US...  
 
2030Z UPDATE...  
THERE WERE FEW CHANGES NEEDED IN THE DAY 4 PERIOD GIVEN GOOD RUN  
TO RUN CONTINUITY BETWEEN THE 01/00Z AND 01/12Z SUITE OF NUMERICAL  
GUIDANCE AND THEIR RESPECTIVE ENSEMBLES. INTRODUCED A MARGINAL  
RISK AREA ACROSS PARTS OF THE SOUTHEAST US ON DAY 5 IN PROXIMITY TO  
A QUASI- STATIONARY FRONT DRAPED ACROSS THE REGION. WITH THE  
BOUNDARY SEPARATING DEEP MOISTURE OVER THE GULF FROM A COOLER AND  
MUCH DRIER AIRMASS TO THE NORTH BEING FED IN BY HIGH PRESSURE OVER  
THE EASTERN US...THERE COULD STILL BE CONVECTION CAPABLE OF  
PRODUCING HEAVY RAINFALL FROM COASTAL LOUISIANA EASTWARD ACROSS  
NORTHERN FLORIDA AND ADJACENT AREAS OF ALABAMA AND GEORGIA. THE  
MARGINAL RISK AREA LARGELY ENCOMPASSES AN AREA WHERE BOTH THE  
01/00Z EC ENS AND THE 01/12Z GEFS HAD MEMBERS SHOWING 3 INCH PER 24  
HOUR QPF CONTOURS. THERE WERE NOT MANY MEMBERS BUT ENOUGH TO  
SUPPORT A MARGINAL RISK AREA.  
 
BANN  
 
PREVIOUS DISCUSSION...  
 
FOR DAY 4 (12Z SUN-12Z MON) -- THE ONE MEANINGFUL CHANGE COMPARED  
TO YESTERDAY'S DAY 5 ERO WAS TO EXTEND THE MARGINAL ALL THE WAY TO  
THE MID ATLANTIC AND SOUTHEAST COAST. THERE IS A HANDFUL OF  
GUIDANCE (INCLUDING THE 00Z ECMWF, EC ENSEMBLE MEAN, AND EC-AIFS)  
THAT ARE A BIT MORE PROGRESSIVE WITH THE SOUTHWARD EXTENT OF THE  
BROAD FRONTAL ZONE, THUS IMPLYING ANY OUTLOOK AREAS WOULD BE  
SHIFTED FARTHER SOUTH TOWARD THE GULF COAST. FOR NOW, HAVE  
MAINTAINED THE SLIGHT RISK ACROSS PARTS OF THE CENTRAL GULF COAST,  
THOUGH IF THE TRENDS IN THE GLOBAL GUIDANCE CONTINUE (AMPLIFYING  
UPPER TROUGH OVER THE GREAT LAKES), LATER SHIFTS MAY START PEELING  
AWAY AT THE NORTHERN EXTENT OF THE SLIGHT (AS WELL AS MARGINAL)  
WITH THE FASTER SURFACE COLD FRONTAL PASSAGE.  
 
ON DAY 5, THE ONLY AREA OF CONCERN AT THIS POINT IS THE LOWER TX  
COAST. THIS IS WHERE THE SURFACE FRONT WOULD MORE LIKELY GET HUNG  
UP, AS BOTH THE 00Z ECMWF AND GFS SHOW STRETCHED MID-LEVEL VORT  
LOBES LINGERING ACROSS SOUTH TX. AT THIS TIME, THE GUIDANCE SHOWS A  
VERY COMPACT AREA OF HEAVIER RAIN (HIGHER DETERMINISTIC AND  
PROBABILISTIC QPF) ONSHORE FROM THE GULF, BASICALLY ALONG THE  
LOWER TX COAST AND INTO EASTERN PORTIONS OF THE RIO GRANDE VALLEY.  
 
HURLEY  
 
 
DAY 1 THREAT AREA: HTTPS://WWW.WPC.NCEP.NOAA.GOV/QPF/94EPOINTS.TXT  
DAY 2 THREAT AREA: HTTPS://WWW.WPC.NCEP.NOAA.GOV/QPF/98EPOINTS.TXT  
DAY 3 THREAT AREA: HTTPS://WWW.WPC.NCEP.NOAA.GOV/QPF/99EPOINTS.TXT  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab HPC Page
Main Text Page