Click on button above to view IA Watches/Warnings/Special Wx Statements.


Cass County, IA Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.

(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Precision Ag., Lawn & Garden Guidance
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts





US Weekly Rainfall Departure



US Weekly Temperature Departure
Also see:




A joint service of the UK Ag Weather Center and the National Weather Service.


Weather Summary for Iowa
National Weather Service Des Moines IA
537 AM CST Sun Dec 17 2017

Mostly cloudy conditions were present across much of the state
throughout the overnight hours. Some fog was reported in portions of
northern Iowa reducing visibilities to below one mile at times through
the night. Early morning temperatures range from the mid 20s to the
mid 30s across Iowa. Winds are generally out of the north to northeast
at around 10 mph. 

A weak upper level disturbance will push through the state today
bringing a chance for some light rain to portions of southern central
and southern Iowa. Otherwise mainly dry and mild conditions are
expected through Wednesday. A stronger weather system has potential 
to impact the region Thursday into early Friday. This will bring the
chance for widespread precipitation to much of Iowa, with a chance for
accumulating snowfall to portions of the state. The storm track,
timing and any precipitation amounts are still to be determined. Stay
tuned for forecast updates over the next few days. 

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Precision Agriculture Weather Forecast For CASS County


For Your Farm PointAgCast...Click here.

Regional Hourly Observations For CASS County
Issued at 600 AM CST SUN DEC 17 2017

   SOUTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ATLANTIC *     CLOUDY    30  27  86 N10       29.96S WCI  21          
AUDUBON *      CLOUDY    27  23  86 N6        29.97S WCI  20          
CLARINDA *     CLOUDY    34  28  80 CALM        N/A                   
COUNCIL BLFS * CLOUDY    30  30 100 N13       29.95F WCI  20          
CRESTON *      CLOUDY    30  27  86 NE8       29.95R WCI  23          
HARLAN  *      MOCLDY    28  27  93 N9        30.00S WCI  20          
LAMONI         CLOUDY    39  26  59 S5        29.95R                  
6HR MIN TEMP:  34; 6HR MAX TEMP:  41;                                

RED OAK *      CLOUDY    32  28  86 NE7       29.95S WCI  26          
SHENANDOAH *   CLOUDY    34  28  80 CALM      29.97R                  

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel


Current Agricultural Weather Conditions in Iowa
Based on observations at 500am CST, Sunday December 17, 2017

Across Iowa...temperatures are near 24 degrees west, near 31 degrees central, and near 30 degrees east. Current sky conditions are partly cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 91%, and the dew point is near 22 degrees. In the central part of the state, relative humidity is near 75%, and the dew point is near 24 degrees. In the east, relative humidity is near 85%, and the dew point is near 26 degrees. Winds are calm west, where conditions are favorable for spraying. Winds are from the northeast at 5 mph central, where conditions are favorable for spraying. The wind chill is near 26 degrees central. Winds are from the east at 8 mph east, where conditions are favorable for spraying. The wind chill is near 22 degrees east. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 40 degrees at Lamoni. The lowest temperature is 22 degrees at Fort Dodge.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For CASS County,IA

432 AM CST Sat Dec 16 2017

 DAY ONE  Today and tonight

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  Sunday through Friday

Wintry precipitation will be possible late Wednesday night north
half spreading south into Thursday. Measurable snowfall will be 
possible, leading to the potential for hazardous travel. Gusty
winds will also be possible Thursday.  

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not anticipated at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For CASS County, IA
508 AM CST Sun Dec 17 2017

TODAY
Cloudy until late afternoon then becoming partly sunny. A slight chance of light snow and sleet through mid morning, then a slight chance of light rain and snow before noon. Colder. High in the lower 40s. North wind 5 to 10 mph. Chance of precipitation 20 percent.

TONIGHT
Mostly cloudy through midnight then becoming partly cloudy. Low in the mid 20s. Northwest wind near 5 mph shifting to the southwest after midnight.

MONDAY
Sunny. High in the lower 50s. Southwest wind 5 to 15 mph with gusts to around 30 mph.

MONDAY NIGHT
Mostly clear. Low in the lower 30s. Southwest wind 5 to 10 mph.

TUESDAY
Sunny. High in the upper 40s. North wind 5 to 10 mph.

TUESDAY NIGHT
Partly cloudy. Low in the mid 20s.

WEDNESDAY
Mostly sunny. High in the upper 40s.

WEDNESDAY NIGHT
Mostly cloudy. Low in the lower 30s.

THURSDAY
Cloudy. A chance of light rain and snow in the morning, then light rain possibly mixed with snow in the afternoon. High in the lower 40s. Chance of precipitation 70 percent.

THURSDAY NIGHT
Cloudy. Light snow through midnight, then a chance of light snow after midnight. Colder. Low 15 to 20. Chance of snow 80 percent.

FRIDAY
Partly sunny. Colder. High in the upper 20s.

FRIDAY NIGHT
Partly cloudy. Low around 15.

SATURDAY
Partly sunny. High in the upper 20s.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Iowa
                                 IOWA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 22-26    DEC 24-30    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal      Below                      
 Precipitation:     Normal       Normal     Normal      Above                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Almanac Information

Sunday December 17, 2017 the 351th Day of Year

---------------------------------------------------
SUN
Declination -23.380000
Distance 0.999725 AU
Rise 08:37 EST Set 17:44 EST
Transit Meridian 13:10 EST
Civil Twilight Begins 08:06 EST Ends 18:15 EST

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

DECEMBER 17TH
HISTORIC WEATHER EVENTS
...1884...
A three week blockade of snow began at Portland OR. A record December total
of 34 inches was received. (David Ludlum)
...1924...
A severe icestorm struck central Illinois. It coated the ground with nearly
two inches of glaze at Springfield. The storm caused 21 million dollars
damage along with much hardship. Ice was on the trees until the 4th of
January, and electricity was not restored until January 10th. (David
Ludlum)
...1929...
An icestorm in western New York State resulted in much damage and hardship.
A Buffalo report stated, "one was kept awake by the breaking limbs, which
snapped off with a report much louder than a rifle shot." (17th-18th) (The
Weather Channel)
...1987...
A storm in the southwestern U.S. brought heavy rain and heavy snow to parts
of California, Nevada, Arizona, Utah and New Mexico. Charleston NV was
blanketed with 12 inches of snow. Lake Havasu City AZ was drenched with
2.26 inches of rain. (Storm Data) (The National Weather Summary)
...1988...
Squalls brought locally heavy snow to the southeastern shores of Lake
Michigan. Totals in Michigan ranged up to 14 inches at Harvey. Totals in
Ohio ranged up to 16 inches at Chardon. (The National Weather Summary)
(Storm Data)
...1989...
Twenty-one cities from Kentucky to Pennsylvania reported record low
temperatures for the date, including Columbus OH with a reading of 12
degrees below zero. Heavy snow continued in the Colorado Rockies. Vail
received 65 inches of snow between the 14th and the 18th of December.
Steamboat Springs was buried under 74 inches, and reported a total of 108
inches of snow between the 10th and the 18th of the month. (The National
Weather Summary) (Storm Data)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky