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Cass County, IA Weather and Climate Synopsis

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


Weather Summary for Iowa
National Weather Service Des Moines IA
1255 AM CDT Fri Apr 26 2024

Today: 

Clouds had spread over the state early this morning and winds from 
the southeast were averaging 10 to 20 mph with gusts to near 30 mph in
some places. Over western Iowa, showers and storms were just crossing
the Missouri River into western Iowa after midnight this morning. 
Temperatures in most locations were in the 50s.

The showers and embedded thunderstorms will move into central Iowa by
sunrise today and spread across eastern Iowa this morning. As this 
wave of precipitation moves out later this morning and afternoon, 
clouds will remain over northern into central Iowa with some breaks of
sunshine over southern Iowa, particularly southwest. Strong to severe
storms are expected to develop near the Missouri River late this 
afternoon and push into western and central Iowa this evening and 
eastern Iowa late evening and after midnight. Large hail, a few 
tornadoes, and strong wind gusts will be possible with this activity. 

In addition to the stormy weather, it will be breezy with wind speeds
averaging 15 to 25 mph and gusts of 25 to 35 mph much of the time 
today and through this weekend as well.

Tonight and beyond: 

There should be a break in widespread activity after the storms exit
tonight until later Saturday afternoon when strong to severe storms 
are once again expected. In addition, storms moving over the same area
with little break between rounds may result in ponding in low lying 
and poor drainage areas and perhaps localized flooding as storms
continue into Saturday night. There may be some lingering showers or 
storms on Sunday, but another round of strong to severe storms will 
be possible later in the day into the evening. Anyone with outdoor 
plans should have ways to receive weather warnings and know where 
nearby shelter is located in case threatening weather nears their 
location.
National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Precision Agriculture Weather Forecast For CASS County


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Regional Hourly Observations For CASS County
Issued at 1000 PM CDT FRI APR 26 2024

   SOUTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ATLANTIC *     MOCLDY    61  57  88 SW12      29.40S TC  16           
AUDUBON *      MOCLDY    61  57  88 S5        29.40S TC  16           
CLARINDA *     MOCLDY    66  55  68 SW17      29.48R TC  19           
COUNCIL BLFS * PTCLDY    64  55  72 SW17      29.40R TC  18           
CRESTON *      CLOUDY    64  64 100 S18G37    29.45R TC  18           
HARLAN  *      CLEAR     61  55  82 SW16      29.40R TC  16           
LAMONI         MOCLDY    66  62  87 S22G37    29.49S TC  19           
RED OAK *      MOCLDY    64  54  68 SW15      29.45R TC  18           
SHENANDOAH *   PTCLDY    64  54  68 SW16      29.46R TC  18

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 1000pm CDT, Friday April 26, 2024

Across Iowa...temperatures are near 56 degrees west, near 63 degrees central, and near 63 degrees east. Current sky conditions are mostly cloudy west, cloudy central, and mostly cloudy east. In the west, relative humidity is near 97%, and the dew point is near 55 degrees. In the central part of the state, relative humidity is near 83%, and the dew point is near 58 degrees. In the east, relative humidity is near 83%, and the dew point is near 58 degrees. There is thunder central. Winds are from the southeast at 6 mph west, where conditions are favorable for spraying. Winds are from the southeast at 20 mph with gusts at 26 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 14 mph east, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 66 degrees at Lamoni and Clarinda. The lowest temperature is 52 degrees at Mason City.

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 

251 PM CDT Fri Apr 26 2024

 DAY ONE  This afternoon and tonight

Severe weather including a few tornadoes, large hail, and strong 
wind gusts are possible late this afternoon into this evening. 
Isolated heavy rainfall may also occur.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Severe weather including locally heavy rainfall remains in the 
forecast for Saturday and Sunday over central Iowa. For more 
details, see the latest DSS Packet at 
https://www.weather.gov/media/dmx/DssPacket.pdf

 SPOTTER INFORMATION STATEMENT  

Spotter activation may be needed today, Saturday, and Sunday.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For CASS County, IA
933 PM CDT Fri Apr 26 2024

REST OF TONIGHT
Mostly cloudy late this evening, then becoming partly cloudy. A chance of showers and thunderstorms late this evening. Some thunderstorms may be severe. Lows in the lower 50s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.

SATURDAY
Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent.

SATURDAY NIGHT
Showers and thunderstorms. Lows in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

SUNDAY
Thunderstorms, showers. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

SUNDAY NIGHT
Showers and thunderstorms likely in the evening. Lows in the mid 40s. South winds 10 to 15 mph, becoming west after midnight. Chance of rain 60 percent.

MONDAY
Mostly sunny. Highs in the mid 60s.

MONDAY NIGHT
Mostly clear. Lows in the upper 40s.

TUESDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. A chance of showers and thunderstorms. Lows in the upper 40s. Chance of rain 50 percent.

WEDNESDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 70s. Chance of rain 50 percent.

WEDNESDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 40s. Chance of rain 50 percent.

THURSDAY
A chance of showers in the morning. Partly sunny. Highs in the upper 60s. Chance of rain 40 percent.

THURSDAY NIGHT
Partly cloudy. Lows in the lower 40s.

FRIDAY
Mostly sunny. Highs in the upper 60s.

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 
                 MAY 2-MAY 6 MAY 4-MAY 10    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above                                            
 Precipitation:      Above        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 

Friday April 26, 2024 the 117th Day of Year

---------------------------------------------------
SUN
Declination 14.010000
Distance 0.999718 AU
Rise 07:15 EDT Set 21:09 EDT
Transit Meridian 14:11 EDT
Civil Twilight Begins 06:46 EDT Ends 21:38 EDT

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

APRIL 26TH
HISTORIC WEATHER EVENTS
...1834...
Killer frosts were reported in the Deep South. The frost was quite severe
around Huntsville AL, and highlighted a backward spring in the South that
year. (David Ludlum)
...1978...
An unusually strong occluded front swept out of the Gulf of Alaska and
produced the first April thunderstorm of record at Fairbanks. Pea size hail
fell northeast of Fairbanks from thunderstorms whose tops were less than
8000 feet. (The Weather Channel)
...1984...
Severe thunderstorms associated with an intense cyclone spawned a total of
forty-seven tornadoes in two days from Louisiana to Upper Michigan. The
tornadoes killed 16 persons and injured 259 others. (Storm Data)


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