Area Forecast Discussion
Issued by NWS Hastings, NE

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000
FXUS63 KGID 250916
AFDGID

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
416 AM CDT MON AUG 25 2014

.SHORT TERM...(TODAY AND TONIGHT)
ISSUED AT 408 AM CDT MON AUG 25 2014

THE FOCUS IS ON THUNDERSTORMS IN AN ACTIVE WEATHER PATTERN TO START
THE WORKWEEK. THE PATTERN ALOFT ACROSS THE CENTRAL PLAINS
FEATURED SOUTHWEST FLOW WITH AN UPPER TROUGH LOCATED ACROSS THE
WESTERN CONUS WITH TWO DISTINCT LOW PRESSURE CENTERS...ALONG THE
ND/MANITOBA BORER AND IN OREGON...WHILE UPPER RIDGING WAS IN
PLACE FM OLD MEXICO THRU THE MISSISSIPPI/OHIO VALLEY REGIONS. AT
THE SURFACE WE HAVE A PSEUDO STATIONARY WARM FRONTAL BOUNDARY WAS
ORIENTED ACROSS NORTHERN KANSAS...WHILE TO THE NORTH THERE IS A
DISTINCT BOUNDARY NOTED ON KLNX RADAR WORKING SOUTH OF THEDFORD IN
NW NEB AS A SFC RIDGE BUILDS SOUTHEAST ALONG THE NEB/SD STATELINE.

CONVECTION DEVELOPED DURING THE LATE EVENING ACROSS CO AND THIS
ACTIVITY IS WORKING EASTWARD THIS MORNING FM WESTERN KS EARLY AND
IS ON THE EDGE OF OUR WESTERN ZONES...MAINLY SOUTH OF INTERSTATE
80. THIS ACTIVITY WILL CONTINUE TO MIGRATE EAST NORTHEASTWARD
TODAY IN THE MEAN FLOW WITH THE BETTER CHCS FOR PCPN FOCUSED ACROSS
THE NW TWO THIRDS OF OUR CWA.

THE UPPER LOW PRESSURE SYSTEM IN OREGON WILL DIG INTO NV TODAY WITH
SW FLOW ALOFT FURTHER DEEPENING ACROSS THE PLAINS...WITH SEVERAL
SHORTWAVES LIFTING OUT OF THE WESTERN TROUGH.  THE FRONTAL
BOUNDARIES COMBINED WITH A PROLONGED PERIOD OF ISENTROPIC LIFT
WILL LEAD TO CHCS FOR STORMS THRU TONIGHT. THE DAYTIME HOURS MAY
NOT BE A COMPLETE RAIN OUT BUT WITH STORMS ONGOING...AND THE
POTENTIAL FOR ADDITIONAL DEVELOPMENT IN LIFT/DYNAMICS JUST CANNOT
LEAVE FORECAST DRY.

THE OVERNIGHT HOURS SHOULD SEE MORE WIDESPREAD CONVECTION NORTH OF
THE WARM FRONTAL BOUNDARY PRIMARILY ACROSS SOUTH CENTRAL NEBRASKA.
THE POTENTIAL EXISTS FOR SOME GOOD RAINFALL AMOUNTS AS PRECIPITABLE
WATER VALUES AVERAGE AN INCH AND HALF.  CANNOT RULE OUT THE
CHANCE FOR STRONG TO SEVERE STORMS NEAR THE FRONT THIS
EVENING/TONIGHT AS THE HIGHER MOISTURE/INSTABILITY POOLS ALONG THE
FRONT NEAR THE NEB/KS STATELINE. WILL CONTINUE TO MENTION
POSSIBILITY OF SEVERE STORMS IN THE HWO.

.LONG TERM...(TUESDAY THROUGH SUNDAY)
ISSUED AT 408 AM CDT MON AUG 25 2014

LONG TERM DISCUSSION WILL FOLLOW SHORTLY.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 1141 PM CDT SUN AUG 24 2014

SCATTERED THUNDERSTORMS ARE POSSIBLE TODAY...WITH STORM COVERAGE
INCREASING THIS EVENING/TONIGHT.

&&

.GID WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
KS...NONE.

&&

$$

SHORT TERM...FAY
LONG TERM...PFANNKUCH
AVIATION...FAY



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