Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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
FXUS64 KHGX 260325
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1025 PM CDT SAT APR 25 2015

.UPDATE...
THE NEXT 24 HOURS IS FORECAST TO BE RELATIVELY QUIET WITH A RETURN
TO AN ACTIVE WEATHER PATTERN MONDAY. THE MAIN WEATHER STORY FOR
THE OVERNIGHT HOURS WILL BE THE FORMATION OF AREAWIDE PATCHY FOG.
A LIGHT WIND FIELD AND DEW POINT DEPRESSIONS FALLING TO UNDER THREE
DEGREES SHOULD HAVE MANY MORE RURAL OPEN EXPANSES EXPERIENCING
EARLY SUNDAY MORNING FOG. WATER VAPOR IMAGERY THAT PROVERBIAL `PICTURE
THAT SPEAKS A THOUSAND WORDS` AS A CURRENT SWATH OF DRY AIR SWEEPS
THROUGH SUNDAY MORNING...WITH THE IMPETUS OF MONDAY`S INCLEMENT
WEATHER THAT OF A LARGE UPPER LOW DIVING SOUTH ACROSS THE SOUTHERN
SIERRA NEVADA SPINE AND ENTERING WESTERN ARIZONA TONIGHT. PER
LOCAL RAOB DATA...GENERALLY DRY AND CAPPED SOUNDINGS AS REGION
WILL REMAIN UNDER WEAK MID-UPPER RIDGING AND MID-UPPER WESTERLY
FLOW THAT EQUATES TO PARTIALLY CLOUDY SKIES THROUGH EARLY MONDAY
MORNING. SLIGHT CHANCE POPS IN PLACE TOMORROW TO COVER THAT UNCERTAINTY
OF AN ISOLATED AREA OF CONVECTION THAT COULD FORM IN RESPONSE TO
A QUICK HITTER SHORTWAVE DISTURBANCE EMBEDDED WITHIN THE SLOWLY
BACKING MID-UPPER STEERING WEST-TO-SOUTHWESTERLIES. THE LARGE
UPPER LOW WILL BE ENTERING THE WESTERN (PANHANDLE) TEXAS MONDAY...
OPENING UP THE UPPER FLOW PATTERN AND ALLOWING A SERIES OF HIGHER
PVA TO RIDE INTO AN INCREASINGLY MORE SATURATED AND UNSTABLE MONDAY
ENVIRONMENT. WIDESPREAD RAIN AND THUNDERSTORM ACTIVITY FORMING
AHEAD OF AN APPROACHING COLD FRONTAL BOUNDARY SHOULD IMPACT THE
AREA DURING THE DAY MONDAY. 31

&&

.PREV DISCUSSION... /ISSUED 629 PM CDT SAT APR 25 2015/

AVIATION...
WITH MOIST GROUND AND MCLR SKIES...WE MAY SEE SOME PATCHY FOG
DEVELOP OVERNIGHT AS WINDS DIMINISH. MAINTAINED ABOUT THE SAME
TRENDS AS 18Z TAFS IN THE 00Z PACKAGE. SOME MODEL GUIDANCE
SUGGESTS MORE PESSIMISTIC VIS/CIGS - BUT THEY`VE ALSO BEEN OVERLY
PESSIMISTIC FOR WEEKS NOW. OTHERWISE...VFR FROM MID MORNING THRU
SUN AFTN. 47

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      68  86  71  83  62 /  10  20  40  60  40
HOUSTON (IAH)              69  88  72  83  66 /  10  20  20  60  50
GALVESTON (GLS)            73  78  75  81  69 /  10  20  20  50  30

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

$$

DISCUSSION...31/47



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