Freeze Warning 4, NWS Omaha, NE

Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Shelby County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Pierce County, NE, Platte County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE

831 
WWUS73 KOAX 221635
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1135 AM CDT SAT SEP 22 2012

...FREEZING TEMPERATURES EXPECTED LATE SATURDAY NIGHT...

.COLD HIGH PRESSURE IN COMBINATION WITH MOSTLY CLEAR SKIES AND
NEAR CALM WINDS SHOULD ALLOW LOW TEMPERATURES TO BOTTOM OUT IN
THE UPPER 20S AND LOWER 30S SUNDAY MORNING.

IAZ043-055-056-069-079-080-091-NEZ011-012-015>018-030>034-042>045-
050-051-065-066-230045-
/O.CON.KOAX.FZ.W.0004.120923T0800Z-120923T1400Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-PAGE-KNOX-
CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-SEWARD-
LANCASTER-
INCLUDING THE CITIES OF...ONAWA...MAPLETON...MISSOURI VALLEY...
WOODBINE...LOGAN...DUNLAP...HARLAN...COUNCIL BLUFFS...GLENWOOD...
RED OAK...CLARINDA...SHENANDOAH...CREIGHTON...BLOOMFIELD...
CROFTON...WAUSA...VERDIGRE...NIOBRARA...HARTINGTON...LAUREL...
RANDOLPH...COLERIDGE...PENDER...MACY...WALTHILL...WINNEBAGO...
NELIGH...ELGIN...PIERCE...PLAINVIEW...OSMOND...WAYNE...ALBION...
ST. EDWARD...NORFOLK...STANTON...WEST POINT...WISNER...TEKAMAH...
OAKLAND...LYONS...DECATUR...COLUMBUS...SCHUYLER...FREMONT...
BLAIR...DAVID CITY...WAHOO...ASHLAND...YUTAN...SEWARD...MILFORD...
LINCOLN
1135 AM CDT SAT SEP 22 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
SUNDAY...

* TEMPERATURE...READINGS ARE EXPECTED TO FALL INTO THE UPPER 20S 
  AND LOWER 30S LATE SATURDAY NIGHT AND EARLY SUNDAY MORNING. 

* IMPACTS...SENSITIVE VEGETATION EXPOSED TO THESE COLD
  TEMPERATURES MAY BE DAMAGED OR KILLED. PEOPLE INTERESTED IN
  PROTECTING THEIR PLANTS...SHOULD TAKE ACTION BY SATURDAY
  EVENING. IN ADDITION...FREEZING TEMPERATURES CAN DAMAGE
  UNDRAINED OUTDOOR HOSES AND ABOVE GROUND PORTIONS OF SPRINKLER
  SYSTEMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

ZAPOTOCNY

812 
WWUS73 KOAX 222024
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
324 PM CDT SAT SEP 22 2012

...FREEZING TEMPERATURES EXPECTED TONIGHT...

.COLD HIGH PRESSURE IN COMBINATION WITH MOSTLY CLEAR SKIES AND
DECREASING WINDS SHOULD ALLOW LOW TEMPERATURES TO BOTTOM OUT IN
THE UPPER 20S AND LOWER 30S SUNDAY MORNING.

IAZ043-055-056-069-079-080-091-NEZ011-012-015>018-030>034-042>045-
050-051-065-066-230430-
/O.CON.KOAX.FZ.W.0004.120923T0800Z-120923T1400Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-PAGE-KNOX-
CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-SEWARD-
LANCASTER-
INCLUDING THE CITIES OF...ONAWA...MAPLETON...MISSOURI VALLEY...
WOODBINE...LOGAN...DUNLAP...HARLAN...COUNCIL BLUFFS...GLENWOOD...
RED OAK...CLARINDA...SHENANDOAH...CREIGHTON...BLOOMFIELD...
CROFTON...WAUSA...VERDIGRE...NIOBRARA...HARTINGTON...LAUREL...
RANDOLPH...COLERIDGE...PENDER...MACY...WALTHILL...WINNEBAGO...
NELIGH...ELGIN...PIERCE...PLAINVIEW...OSMOND...WAYNE...ALBION...
ST. EDWARD...NORFOLK...STANTON...WEST POINT...WISNER...TEKAMAH...
OAKLAND...LYONS...DECATUR...COLUMBUS...SCHUYLER...FREMONT...
BLAIR...DAVID CITY...WAHOO...ASHLAND...YUTAN...SEWARD...MILFORD...
LINCOLN
324 PM CDT SAT SEP 22 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
SUNDAY...

* TEMPERATURE...READINGS ARE EXPECTED TO FALL INTO THE UPPER 20S 
  AND LOWER 30S LATE SATURDAY NIGHT AND EARLY SUNDAY MORNING. 

* IMPACTS...SENSITIVE VEGETATION EXPOSED TO THESE COLD
  TEMPERATURES MAY BE DAMAGED OR KILLED. PEOPLE INTERESTED IN
  PROTECTING THEIR PLANTS...SHOULD TAKE ACTION BY LATE THIS
  EVENING. ADDITION...THE FREEZING TEMPERATURES CAN DAMAGE
  UNDRAINED OUTDOOR HOSES AND ABOVE GROUND PORTIONS OF SPRINKLER
  SYSTEMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.  

&&

$$

IAZ090-NEZ052-053-067-068-078-089>091-230430-
/O.NEW.KOAX.FR.Y.0001.120923T0800Z-120923T1400Z/
FREMONT-DOUGLAS-SARPY-CASS-OTOE-SALINE-GAGE-JOHNSON-NEMAHA-
INCLUDING THE CITIES OF...SIDNEY...HAMBURG...TABOR...FARRAGUT...
OMAHA...BELLEVUE...PAPILLION...LA VISTA...PLATTSMOUTH...
NEBRASKA CITY...CRETE...WILBER...BEATRICE...TECUMSEH...STERLING...
AUBURN
324 PM CDT SAT SEP 22 2012

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT SUNDAY. 

* TEMPERATURE...LOWS TONIGHT WILL FALL TO 33 TO 35 DEGREES OVER
  MUCH OF THE AREA. SOME LOW AREAS AWAY FROM LARGER TOWNS MAY EVEN
  BRIEFLY DROP BELOW FREEZING. 

 *IMPACTS...THE COLD TEMPERATURES AND FROST POTENTIAL COULD HARM
  OR KILL SENSITIVE VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
CHERMOK

813 
WWUS73 KOAX 230140
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
840 PM CDT SAT SEP 22 2012

...FREEZING TEMPERATURES OR FROST EXPECTED TONIGHT...

.COLD HIGH PRESSURE IN COMBINATION WITH MOSTLY CLEAR SKIES AND
DECREASING WINDS SHOULD ALLOW LOW TEMPERATURES TO BOTTOM OUT IN
THE UPPER 20S AND LOWER 30S SUNDAY MORNING.

IAZ043-055-056-069-079-080-091-NEZ011-012-015>018-030>034-042>045-
050-051-065-066-230945-
/O.CON.KOAX.FZ.W.0004.120923T0800Z-120923T1400Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-PAGE-KNOX-
CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-SEWARD-
LANCASTER-
INCLUDING THE CITIES OF...ONAWA...MAPLETON...MISSOURI VALLEY...
WOODBINE...LOGAN...DUNLAP...HARLAN...COUNCIL BLUFFS...GLENWOOD...
RED OAK...CLARINDA...SHENANDOAH...CREIGHTON...BLOOMFIELD...
CROFTON...WAUSA...VERDIGRE...NIOBRARA...HARTINGTON...LAUREL...
RANDOLPH...COLERIDGE...PENDER...MACY...WALTHILL...WINNEBAGO...
NELIGH...ELGIN...PIERCE...PLAINVIEW...OSMOND...WAYNE...ALBION...
ST. EDWARD...NORFOLK...STANTON...WEST POINT...WISNER...TEKAMAH...
OAKLAND...LYONS...DECATUR...COLUMBUS...SCHUYLER...FREMONT...
BLAIR...DAVID CITY...WAHOO...ASHLAND...YUTAN...SEWARD...MILFORD...
LINCOLN
840 PM CDT SAT SEP 22 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
SUNDAY...

* TEMPERATURE...READINGS ARE EXPECTED TO FALL INTO THE UPPER 20S
  AND LOWER 30S LATE SATURDAY NIGHT AND EARLY SUNDAY MORNING. A
  FEW SPOTS MAY EVEN BRIEFLY DROP TO THE MID 20S.

* IMPACTS...SENSITIVE VEGETATION EXPOSED TO THESE COLD 
  TEMPERATURES MAY BE DAMAGED OR KILLED. PEOPLE INTERESTED IN 
  PROTECTING THEIR PLANTS...SHOULD TAKE ACTION BY LATE THIS 
  EVENING. ADDITION...THE FREEZING TEMPERATURES CAN DAMAGE 
  UNDRAINED OUTDOOR HOSES AND ABOVE GROUND PORTIONS OF SPRINKLER 
  SYSTEMS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

NEZ088-092-093-230945-
/O.EXA.KOAX.FR.Y.0001.120923T0800Z-120923T1400Z/
JEFFERSON-PAWNEE-RICHARDSON-
INCLUDING THE CITIES OF...FAIRBURY...PAWNEE CITY...TABLE ROCK...
FALLS CITY
840 PM CDT SAT SEP 22 2012

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 9 AM CDT SUNDAY. 

* TEMPERATURE...LOWS TONIGHT WILL FALL INTO THE 32 TO 35 DEGREE
  RANGE OVER MUCH OF THE AREA. SOME LOW AREAS AWAY FROM LARGER
  TOWNS MAY EVEN BRIEFLY DROP BELOW FREEZING.

* IMPACTS...THE COLD TEMPERATURES AND FROST POTENTIAL COULD HARM 
  OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

IAZ090-NEZ052-053-067-068-078-089>091-230945-
/O.CON.KOAX.FR.Y.0001.120923T0800Z-120923T1400Z/
FREMONT-DOUGLAS-SARPY-CASS-OTOE-SALINE-GAGE-JOHNSON-NEMAHA-
INCLUDING THE CITIES OF...SIDNEY...HAMBURG...TABOR...FARRAGUT...
OMAHA...BELLEVUE...PAPILLION...LA VISTA...PLATTSMOUTH...
NEBRASKA CITY...CRETE...WILBER...BEATRICE...TECUMSEH...STERLING...
AUBURN
840 PM CDT SAT SEP 22 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
SUNDAY...

* TEMPERATURE...LOWS TONIGHT WILL FALL INTO THE 32 TO 35 DEGREE
  RANGE OVER MUCH OF THE AREA. SOME LOW AREAS AWAY FROM LARGER
  TOWNS MAY EVEN BRIEFLY DROP BELOW FREEZING.

* IMPACTS...THE COLD TEMPERATURES AND FROST POTENTIAL COULD HARM 
  OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

050 
WWUS73 KOAX 230831
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
331 AM CDT SUN SEP 23 2012

...FREEZING TEMPERATURES OR FROST THIS MORNING...

.COLD CANADIAN AIR SPILLED INTO THE REGION OVERNIGHT. TEMPERATURES
NEAR OR BELOW FREEZING WILL BRING FROST OR FREEZE CONDITIONS
THROUGH ABOUT 9 AM.

IAZ043-055-056-069-079-080-091-NEZ011-012-015>018-030>034-042>045-
050-051-065-066-231400-
/O.CON.KOAX.FZ.W.0004.000000T0000Z-120923T1400Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-PAGE-KNOX-
CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-SEWARD-
LANCASTER-
INCLUDING THE CITIES OF...ONAWA...MAPLETON...MISSOURI VALLEY...
WOODBINE...LOGAN...DUNLAP...HARLAN...COUNCIL BLUFFS...GLENWOOD...
RED OAK...CLARINDA...SHENANDOAH...CREIGHTON...BLOOMFIELD...
CROFTON...WAUSA...VERDIGRE...NIOBRARA...HARTINGTON...LAUREL...
RANDOLPH...COLERIDGE...PENDER...MACY...WALTHILL...WINNEBAGO...
NELIGH...ELGIN...PIERCE...PLAINVIEW...OSMOND...WAYNE...ALBION...
ST. EDWARD...NORFOLK...STANTON...WEST POINT...WISNER...TEKAMAH...
OAKLAND...LYONS...DECATUR...COLUMBUS...SCHUYLER...FREMONT...
BLAIR...DAVID CITY...WAHOO...ASHLAND...YUTAN...SEWARD...MILFORD...
LINCOLN
331 AM CDT SUN SEP 23 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...

* TEMPERATURE...READINGS HAD DROPPED INTO THE LOWER AND MIDDLE 30S
  FOR MUCH OF EASTERN NEBRASKA AND SOUTHWEST IOWA AS OF 3 AM
  SUNDAY...AND SHOULD FALL SEVERAL MORE DEGREES UNTIL JUST AFTER
  SUNRISE. EXPECT BELOW FREEZING TEMPERATURES FOR A FEW
  HOURS...WITH A FEW SPOTS BRIEFLY DROPPING INTO THE MIDDLE 20S.
  TEMPERATURES WILL WARM ABOVE FREEZING BETWEEN 8 AND 9 THIS
  MORNING. 

* IMPACTS...SENSITIVE VEGETATION EXPOSED TO THESE COLD
  TEMPERATURES MAY BE DAMAGED OR KILLED. FREEZING TEMPERATURES
  CAN DAMAGE UNDRAINED OUTDOOR HOSES AND ABOVE GROUND PORTIONS OF
  SPRINKLER SYSTEMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

IAZ090-NEZ052-053-067-068-078-088>093-231400-
/O.CON.KOAX.FR.Y.0001.000000T0000Z-120923T1400Z/
FREMONT-DOUGLAS-SARPY-CASS-OTOE-SALINE-JEFFERSON-GAGE-JOHNSON-
NEMAHA-PAWNEE-RICHARDSON-
INCLUDING THE CITIES OF...SIDNEY...HAMBURG...TABOR...FARRAGUT...
OMAHA...BELLEVUE...PAPILLION...LA VISTA...PLATTSMOUTH...
NEBRASKA CITY...CRETE...WILBER...FAIRBURY...BEATRICE...TECUMSEH...
STERLING...AUBURN...PAWNEE CITY...TABLE ROCK...FALLS CITY
331 AM CDT SUN SEP 23 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...

* TEMPERATURE...READINGS HAD DROPPED INTO THE MIDDLE AND UPPER 30S
  AS OF 3 AM ACROSS MUCH OF SOUTHEAST NEBRASKA AND FAR SOUTHWEST
  IOWA...AND WILL FALL OFF A FEW MORE DEGREES THROUGH SUNRISE.
  SOME LOW AREAS AWAY FROM LARGER TOWNS MAY BRIEFLY DROP BELOW
  FREEZING. EXPECT SEVERAL HOURS OF FROSTY TEMPERATURES BETWEEN 32
  AND 35 THIS MORNING BEFORE TEMPERATURES REBOUND CLOSE TO 40
  BETWEEN 8 AND 9 AM.
 
* IMPACTS...THE COLD TEMPERATURES AND FROST POTENTIAL COULD HARM 
  OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

532 
WWUS73 KOAX 231350
NPWOAX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
850 AM CDT SUN SEP 23 2012

IAZ043-055-056-069-079-080-091-NEZ011-012-015>018-030>034-042>045-
050-051-065-066-231500-
/O.EXP.KOAX.FZ.W.0004.000000T0000Z-120923T1400Z/
MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-PAGE-KNOX-
CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON-STANTON-CUMING-
BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER-SAUNDERS-SEWARD-
LANCASTER-
INCLUDING THE CITIES OF...ONAWA...MAPLETON...MISSOURI VALLEY...
WOODBINE...LOGAN...DUNLAP...HARLAN...COUNCIL BLUFFS...GLENWOOD...
RED OAK...CLARINDA...SHENANDOAH...CREIGHTON...BLOOMFIELD...
CROFTON...WAUSA...VERDIGRE...NIOBRARA...HARTINGTON...LAUREL...
RANDOLPH...COLERIDGE...PENDER...MACY...WALTHILL...WINNEBAGO...
NELIGH...ELGIN...PIERCE...PLAINVIEW...OSMOND...WAYNE...ALBION...
ST. EDWARD...NORFOLK...STANTON...WEST POINT...WISNER...TEKAMAH...
OAKLAND...LYONS...DECATUR...COLUMBUS...SCHUYLER...FREMONT...
BLAIR...DAVID CITY...WAHOO...ASHLAND...YUTAN...SEWARD...MILFORD...
LINCOLN
850 AM CDT SUN SEP 23 2012

...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING...

AFTER LOWS IN THE UPPER 20S AND LOWER 30S...TEMPERATURES HAVE
WARMED INTO THE MID 30S AND LOWER 40S...THEREFORE THE FREEZE
WARNING WILL BE ALLOWED TO EXPIRE. 
 
$$

IAZ090-NEZ052-053-067-068-078-088>093-231500-
/O.EXP.KOAX.FR.Y.0001.000000T0000Z-120923T1400Z/
FREMONT-DOUGLAS-SARPY-CASS-OTOE-SALINE-JEFFERSON-GAGE-JOHNSON-
NEMAHA-PAWNEE-RICHARDSON-
INCLUDING THE CITIES OF...SIDNEY...HAMBURG...TABOR...FARRAGUT...
OMAHA...BELLEVUE...PAPILLION...LA VISTA...PLATTSMOUTH...
NEBRASKA CITY...CRETE...WILBER...FAIRBURY...BEATRICE...TECUMSEH...
STERLING...AUBURN...PAWNEE CITY...TABLE ROCK...FALLS CITY
850 AM CDT SUN SEP 23 2012

...FROST ADVISORY WILL EXPIRE AT 9 AM CDT THIS MORNING...

AFTER A FROSTY START...TEMPERATURES HAVE WARMED INTO THE UPPER 30S
AND LOWER 40S THEREFORE THE FROST ADVISORY WILL BE ALLOWED TO
EXPIRE.

$$

ZAPOTOCNY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1132 PM CDT FRI SEP 21 2012

.AVIATION...

06Z TAFS FOR KOMA...KLNK...KOFK

EXPECT VFR CONDITIONS TO PREVAIL THROUGH THE PERIOD. LIGHT NORTH
OR NORTHWEST WINDS WILL INCREASE TO AROUND 10-13 KNOTS MID TO
LATE MORNING...THEN DROP OFF TOWARD EVENING.

MILLER

.PREV DISCUSSION... /ISSUED 335 PM CDT FRI SEP 21 2012/

DISCUSSION...

EARLY AFTERNOON WATER VAPOR IMAGERY INDCD ANOTHER SHORTWAVE
TROUGH DIVING SWD INTO NRN MN. THIS WAS ASSOCIATED WITH AN AREA OF
LOW PRESSURE TO THE NORTH OF INTERNATIONAL FALLS WITH A CDFNT
EXTNDG WWD JUST ABOUT TO CROSS THE BORDER INTO ND/MN. THIS FNT
WILL DIVE SWD TONIGHT AND MOVE THROUGH THE CWA EARLY SAT. LITTLE
IN THE WAY OF SENSIBLE WX IS ASSOCIATED WITH THIS FNT...BUT THE
AIRMASS BEHIND THE FNT WILL BE THE COOLEST SO FAR THIS EARLY FALL
SEASON. EVEN WITH STRONG MIXING UNDER A GOOD DEAL OF SUNSHINE ON
SAT WE WILL SEE HIGHS A GOOD 10 TO 15 DEGREES COOLER THAN TODAY.
THE SURFACE HIGH WILL SETTLE DOWN INTO THE MID MO RIVER VALLEY ON
SAT AND MAY LEAD TO THE FIRST FREEZE OF THE SEASON IN MANY AREAS.
THERE IS SOME UNCERTAINTY THOUGH AS BOTH THE NAM AND GFS INDC SOME
HIGH LEVEL MOISTURE AROUND 400 MB DIVING SEWD ON THE WEST OF THE
ERN US MEAN TROF AND ACROSS THE CWA ON SAT NIGHT. THIS CREATES
SOME UNCERTAINTY AS TO THE DEGREE OF RADIATIONAL COOLING WE WILL
SEE. SREF ENSEMBLE PLUME INDCS A GOOD RANGE OF POTENTIAL
TEMPERATURES FROM THE UPPER 20S TO LOWER 40S FOR SAT NIGHT OVER
THE CNTRL AND NRN CWA. 12Z OPERATIONAL MOS GUIDANCE IS CLOSER TO
THE COOLER SIDE OF THE ENVELOPE AT THIS TIME...ESPECIALLY THE MET.
AT THE MOMENT WILL TREND TOWARD THE COOLER SIDE...BUT NOT ENTIRELY
BITE ON THE WIDESPREAD UPPER 20S UNTIL THERE IS BETTER AGREEMENT
IN THE MODELS. NEVERTHELESS WITH LOWS FROM 30-32 DEGREES IN
PLACES THIS NECESSITATES THE ISSUANCE OF A FREEZE WATCH FOR PARTS
OF THE AREA. WE WILL NOT INCLUDE THE OMAHA METRO ATTM WITH WARMER
OVERNIGHT TEMPERATURES EXPECTED NEAR THE HEAT ISLAND. WE WILL
LIKELY SEE SOME FROST IN THE METRO /AND WE WILL INCLUDE IN THE
FORECAST/...BUT A WIDESPREAD FREEZE IS NOT EXPECTED.

RETURN FLOW STARTS TO GET GOING ON SUN NIGHT AS THE SURFACE HIGH
SHIFTS SEWD. LOWS ARE A BIT TRICKY WITH A QUICK EVENING FALL
POSSIBLE IN SW IA...BUT FOR THE MOST PART WE SHOULD SEE READINGS
HOLD ABOVE FREEZING. A NICE WARM UP IS THEN EXPECTED FOR MON AND
TUE AHEAD OF A BIT MORE OF AN ACTIVE PATTERN FOR THE REST OF THE
WORK WEEK. BOTH THE GFS AND EC INDC THAT THE UPPER LEVEL FLOW WILL
BECOME MORE SOUTHWEST TOWARD MIDWEEK WITH A NUMBER OF SHORTWAVE
TROUGHS AFFECTING THE CNTRL PLAINS. AT THE MOMENT IT APPEARS THE
CNTRL AND SRN CWA HAVE THE BEST CHC FOR PRECIP DURING THIS PERIOD
WITH THE SFC FNT STALLING SOMEWHERE AROUND THE KS/NE BORDER.

BOUSTEAD

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...FREEZE WATCH FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING FOR
     NEZ011-012-015>018-030>034-042>045-050-051-065-066.

IA...FREEZE WATCH FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING FOR
     IAZ043-055-056-069-079-080-091.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
600 PM CDT FRI SEP 21 2012

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-221200-
ANTELOPE-BOONE-BURT-BUTLER-CASS-CEDAR-COLFAX-CUMING-DODGE-DOUGLAS-
FREMONT IA-GAGE-HARRISON IA-JEFFERSON-JOHNSON-KNOX-LANCASTER-MADISON-
MILLS IA-MONONA IA-MONTGOMERY IA-NEMAHA-OTOE-PAGE IA-PAWNEE-PIERCE-
PLATTE-POTTAWATTAMIE IA-RICHARDSON-SALINE-SARPY-SAUNDERS-SEWARD-
SHELBY IA-STANTON-THURSTON-WASHINGTON-WAYNE-
600 PM CDT FRI SEP 21 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MOST OF EASTERN NEBRASKA AND
PARTS OF SOUTHWEST IOWA.

.DAY ONE...TONIGHT AND SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY NIGHT THROUGH THURSDAY

AREAS OF FROST ARE LIKELY SUNDAY MORNING...MAINLY IN LOCATIONS
NEAR AND NORTH OF INTERSTATE 80...AS COOL HIGH PRESSURE SETTLES
ACROSS THE AREA. FAVORED LOW LYING AREAS IN NORTHEAST NEBRASKA AND
WESTERN IOWA COULD APPROACH FREEZING.

ISOLATED THUNDERSTORMS COULD AFFECT PARTS OF THE AREA FROM TUESDAY
NIGHT INTO THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TONIGHT OR SATURDAY.

MILLER