Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

Home | 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

000
FXUS63 KOAX 132031
AFDOAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
331 PM CDT SUN APR 13 2014

.SHORT TERM...(TONIGHT THROUGH WEDNESDAY)
ISSUED AT 220 PM CDT SUN APR 13 2014

PRIMARY FORECAST CONCERN WILL BE WITH THE FIRST 12 HOURS OF THE
FORECAST AND ITS VARIETY OF WEATHER ACROSS THE AREA.

COLDER AIR CONTINUES ITS SLOW ADVANCE INTO EASTERN NEBRASKA AT 19Z
WITH SNOW NOW FALLING ACROSS NORTHEAST NEBRASKA WEST OF A COLUMBUS
TO SIOUX CITY LINE. SHORT RANGE MODELS SUCH AS THE HRRR SUGGEST
MAIN ORIENTATION OF THE SNOW BAND WILL GENERALLY SETUP IN AN AREA
BOUNDED BY COLUMBUS TO TEKAMAH ON THE SOUTH AND YANKTON TO NELIGH
ON THE NORTH THROUGH THE REMAINDER OF THE AFTERNOON AS MID LEVEL
CLOSED LOW TRACKS EAST INTO CENTRAL IOWA. SNOW THEN SPREADS EAST
AND ENDS FROM THE WEST DURING THE EVENING ACROSS THE REMAINDER OF
EASTERN NEBRASKA AND SOUTHWEST IOWA AS THE MID LEVEL LOW CONTINUES
TO LIFT TOWARD THE GREAT LAKES REGION AND THE SURFACE LOW MOVES
INTO NORTHERN ILLINOIS. EXPECT SNOW TO END SHORTLY AFTER MIDNIGHT
IN THE FAR SOUTHEAST CORNER OF THE FORECAST AREA. WILL LIKELY
EXPAND WINTER WEATHER ADVISORY ACROSS THIS AREA THROUGH THE 00Z
TIME FRAME IN LINE WITH EXPECTED SNOW. CURRENT INDICATIONS ARE FOR
1 TO 3 INCH ACCUMULATIONS BY EVENING IN THE ADVISORY AREA WITH AN
INCH OR LESS ELSEWHERE THROUGH THE EVENING.

WILL ALSO EXPAND WIND ADVISORY ACROSS REMAINDER OF SOUTHEAST
NEBRASKA AND SOUTHWEST IOWA AND EXTEND THROUGH 03Z.

WEATHER CONDITIONS IMPROVE FOR THE AREA AFTER TONIGHT ALTHOUGH
TEMPERATURES WILL BE ON THE COOL SIDE MONDAY. ANOTHER CLIPPER
MOVES INTO THE NORTHERN PLAINS TUESDAY WITH WARMER AIR RETURNING
TO THE AREA IN ADVANCE OF THIS SYSTEM. COLD FRONT THEN MOVES SOUTH
INTO THE AREA ON WEDNESDAY WITH ANOTHER CHANCE OF RAIN OR SNOW.

.LONG TERM...(WEDNESDAY NIGHT THROUGH SUNDAY)
ISSUED AT 220 PM CDT SUN APR 13 2014

COOL AND WET START TO THE EXTENDED PERIOD AS PREVIOUSLY MENTIONED
COLD FRONT MOVES SOUTH OF THE AREA WITH ANOTHER COLD UPPER TROUGH
DEVELOPING OVER THE CENTRAL PART OF THE COUNTRY. DAY TO DAY
WARMING FOLLOWS THIS SYSTEM FOR FRIDAY THROUGH SUNDAY

&&

.AVIATION...(18Z TAFS FOR KOFK...KLNK AND KOMA.)
ISSUED AT 1222 PM CDT SUN APR 13 2014

SCATTERED THUNDERSTORMS REMAINED OVER SERN NEBR AT TAF ISSUANCE
TIME ALTHOUGH WOULD EXPECT ACTIVITY TO BECOME MORE FOCUSED SE OF
KLNK/KOMA BY 2 OR 3 PM CDT. OTHERWISE STRONG NNE SURFACE WINDS
WILL PREVAIL INTO THIS EVENING BEFORE DECREASING. COLDER AIR
SPREADING SE INTO ERN NEBRASKA WILL LIKELY TURN RAIN TO A
RAIN/SNOW MIX TO NERN NEBR...INCLUDING KOFK...WITH A PERIOD OF
SNOW LIKELY LATER THIS AFTN INTO EARLY EVENING BEFORE PRECIP ENDS.
DUE TO ONGOING INSTABILITY OVER THE AREA THIS AFTERNOON...THERE
COULD ALSO BE SLEET MIXED IN WITH SOME OF THE PRECIP THROUGH MID
AFTN AS WELL. COLDER AIR SHOULD ALSO BRING A PERIOD OF RAIN/SNOW
MIX AT KOMA AND KLNK THIS EVENING...IF NOT A PERIOD OF JUST
SNOW...BEFORE PRECIP ENDS AT THOSE 2 SITES LATE THIS EVENING OR
EARLY TONIGHT. IN GENERAL IFR OR NEAR IFR CONDITIONS EXPECTED IN
PRECIP BEFORE CIGS IMPROVE A FEW HOURS AFTER PRECIP ENDS.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...WIND ADVISORY UNTIL 9 PM CDT THIS EVENING FOR NEZ015>018-030>034-
     042>045-050>053-065>068-078-088>093.

     WINTER WEATHER ADVISORY UNTIL 7 PM CDT THIS EVENING FOR
     NEZ015>018-030>034-042>045.

IA...WIND ADVISORY UNTIL 9 PM CDT THIS EVENING FOR IAZ043-055-056-069-
     079-080-090-091.

&&

$$

SHORT TERM...FOBERT
LONG TERM...FOBERT
AVIATION...CHERMOK



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