Area Forecast Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | 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 KLUB 261130
AFDLUB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LUBBOCK TX
630 AM CDT TUE AUG 26 2014

.AVIATION...
MOIST AND UNSTABLE AIRMASS WILL LEAD TO CHANCE OF THUNDERSTORMS
JUST WEST OF KLBB THROUGH MUCH OF THE PERIOD. CONSIDERABLE
UNCERTAINTY IN SHORT TERM MODEL GUIDANCE IF AND WHEN A CHANCE FOR
THUNDERSTORMS IS REASONABLE FOR KLBB...WHILE KCDS LOOKS EVEN MORE
OF A LONG-SHOT. SO WE WILL THUNDER OUT OF BOTH SITES FOR NOW.
RMCQUEEN

&&

.PREV DISCUSSION... /ISSUED 411 AM CDT TUE AUG 26 2014/

SHORT TERM...
VERY SUBTLE FEATURES IN A MOIST AND WARM ENVIRONMENT CONTINUE TO
CAUSE TROUBLE FOR SHORT TERM SOLUTIONS. AN ELONGATED UPPER LEVEL
RIDGE AXIS WILL REMAIN FROM MISSOURI THROUGH OUR SOUTHEAST ZONES AND
INTO SOUTHWEST TEXAS WHILE SOUTHWESTERLY FLOW ALOFT WILL GRADUALLY
INCREASE ACROSS OUR NORTHWEST COUNTIES LATER TODAY THROUGH EARLY
WEDNESDAY MORNING. RIPPLES IN THIS SOUTHWEST FLOW HAVE BEEN BIG
PLAYERS FOR CONVECTIVE AREAS AND MAY CONTINUE SO AGAIN TODAY. ONE
WEAK WAVE HAS BEEN GRADUALLY LIFTING NORTHEAST THROUGH THE EASTERN
PANHANDLE THIS MORNING...ANOTHER EVEN MORE SUBTLE MID-LEVEL WAVE WAS
STRUGGLING TO MAINTAIN SHOWERS JUST TO OUR SOUTHWEST...AND PERHAPS A
MORE ENERGETIC RIPPLE WAS GATHERING ACROSS FAR WEST TEXAS AND
NORTHERN MEXICO. OTHER THAN THE ACTIVITY LIFTING NORTHWARD THROUGH
OUR NORTHERN COUNTIES EARLY THIS MORNING...THE OTHER TWO WAVES
SHOULD FAVOR CHANCE OF SHOWERS AND THUNDER MAINLY WESTERN AREAS.
GIVEN THE GENEROUS COVERAGE OBSERVED THE PAST COUPLE DAYS...WE HAVE
OPTED TO EXPAND THUNDERSTORM MENTION FOR THE NORTHWESTERN HALF OR
TWO-THIRDS OF THE AREA FOR MUCH OF THE COMING 24 HOUR PERIOD. SLOW
MOVEMENT AND RELATIVELY HIGH PRECIPITABLE WATER VALUES BETWEEN 1.25
AND 1.5 INCHES BRING CHANCE FOR MORE ISOLATED HEAVIER SHOWERS.
RETAINED A MAXIMUM TEMPERATURE MAP TODAY SIMILAR TO YESTERDAYS
OBSERVED HIGHS...THOUGH THINK WESTERN AREAS COULD DROP SLIGHTLY
GIVEN PROSPECTS FOR MORE CLOUDS AND SHOWERS. ISOLATED STRONG WIND
GUSTS MAY BE POSSIBLE MAINLY NORTHWEST ZONES THOUGH SURFACE
INSTABILITY MAY BE LACKING FOR STRONGER STORMS. RMCQUEEN

LONG TERM...
WE WILL BE MOVING TO A MORE WETTER PATTERN FOR THE SECOND HALF OF
THIS WEEK BUT ONLY FOR A BRIEF PERIOD. CYCLONIC FLOW WILL INCREASE
AHEAD OF AN UPPER LEVEL TROUGH ON WEDNESDAY. THE UPPER RIDGE OVER
THE AREA WILL FLATTEN AS THE TROUGH MOVES EAST ON WEDNESDAY AND
THURSDAY. SIGNIFICANT MOISTURE WILL BE ALLOWED INTO THE REGION
WITH HEIGHT FALLS OVERHEAD BEGINNING ON WEDNESDAY. MOISTURE WILL
BE PLENTIFUL WITH SUBSTANTIAL TROPICAL MOISTURE STREAMING OVERHEAD
WITH SOME ASSOCIATED WITH HURRICANE MARIE IN THE EAST PACIFIC.
PRECIPITABLE WATER VALUES WILL BE ON THE ORDER OF 1.5 TO 1.6
INCHES OR ABOUT 150 PERCENT OF NORMAL. THIS AMOUNT OF MOISTURE
AVAILABILITY WILL CREATE CHANCES FOR HEAVY RAINFALL FROM WEDNESDAY
THROUGH SATURDAY. FOR WEDNESDAY...BEFORE THE TROUGH EXERTS ITS
INFLUENCE ON THE AREA...WESTERN AREAS WILL BE FAVORED FOR
CONVECTION AS EXPECTED TODAY.

THIS SLOW MOVING TROUGH AXIS WILL PASS OVERHEAD FROM THURSDAY INTO
FRIDAY AND BRING A COLD FRONT WITH IT SIMULTANEOUSLY.
HOWEVER...MODELS ARE STILL STRUGGLING WITH THE POSITION OF THE
FRONT LATE THIS WEEK. EVEN SO...CHANCES OF WIDESPREAD
PRECIPITATION WILL GREATLY INCREASE ON THURSDAY AND FRIDAY AND
LINGERING INTO SATURDAY WITH THE PASSAGE OF THIS TROUGH.

&&

.PRELIMINARY POINT TEMPS/POPS...
FRIONA        90  62  89  61  86 /  30  20  30  30  30
TULIA         93  64  92  64  89 /  20  20  30  30  30
PLAINVIEW     93  64  92  66  89 /  20  20  20  20  30
LEVELLAND     91  65  92  69  90 /  20  20  20  20  30
LUBBOCK       94  69  93  69  90 /  20  10  20  20  30
DENVER CITY   93  65  92  69  91 /  20  20  20  20  30
BROWNFIELD    94  66  93  70  91 /  20  10  20  20  30
CHILDRESS     99  74  97  71  93 /  10  10  10  20  40
SPUR          97  69  95  73  94 /  10  10  10  20  40
ASPERMONT    100  74  98  73  95 /  10  10  10  20  40

&&

.LUB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

99/99/05




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