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Sioux County, IA Weather and Climate Synopsis

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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 SIOUX County


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Regional Hourly Observations For SIOUX County
Issued at 100 AM CDT FRI APR 26 2024

NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DENISON        CLOUDY    54  39  58 SE23G33   29.83F TC  12           
ESTHERVILLE    CLOUDY    52  30  43 SE26G38   29.88F TC  11           
MAURICE        CLOUDY    54  37  54 SE37G48   29.76F TC  12           
SHELDON        CLOUDY    54  32  43 SE20G28   29.79F TC  12           
SIOUX CITY     LGT RAIN  53  43  68 SE20G31   29.74F TC  12           
6HR MIN TEMP:  54; 6HR MAX TEMP:  63; 6HR PCP: TRACE;                

SPENCER        CLOUDY    53  30  41 SE23G38   29.85F TC  12           
6HR MIN TEMP:  53; 6HR MAX TEMP:  62;                                

STORM LAKE     CLOUDY    52  34  50 SE26G33   29.85S TC  11

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 100am CDT, Friday April 26, 2024

Across Iowa...temperatures are near 54 degrees west, near 54 degrees central, and near 50 degrees east. Current sky conditions are light rain west, cloudy central, and mostly cloudy east. In the west, relative humidity is near 61%, and the dew point is near 41 degrees. In the central part of the state, relative humidity is near 50%, and the dew point is near 36 degrees. In the east, relative humidity is near 54%, and the dew point is near 34 degrees. Winds are from the southeast at 24 mph with gusts at 38 mph west, where conditions are not favorable for spraying due to strong winds and light rain. Winds are from the east at 17 mph with gusts at 31 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the east at 17 mph with gusts at 28 mph east, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 54 degrees at Sioux City, Lamoni, Harlan, Des Moines, and Clarinda. The lowest temperature is 48 degrees at Dubuque and Clinton.

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 SIOUX County,IA 

523 PM CDT Thu Apr 25 2024

 DAY ONE  Tonight.

Showers and storms are expected this evening and night. Storms are 
not expected to be severe but look to bring beneficial rainfall 
between a quarter to three quarters of an inch, highest over 
northwest Iowa.

 DAYS TWO THROUGH SEVEN  Friday through Wednesday.

Strong to severe storms are possible on Friday. The greatest threat
with any storms that form is large hail up to half dollar size,
damaging wind gusts, and a tornado or two. Additional rainfall of a
half an inch to an inch is possible. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For SIOUX County, IA
1058 PM CDT Thu Apr 25 2024

REST OF TONIGHT
Cloudy. A slight chance of showers and thunderstorms late this evening, then showers and thunderstorms. Breezy with lows in the upper 40s. Southeast winds 20 to 25 mph with gusts up to 40 mph. Chance of rain 90 percent.

FRIDAY
Cloudy. Showers and thunderstorms, mainly in the morning. Breezy with highs in the lower 60s. Southeast winds 20 to 25 mph with gusts up to 40 mph. Chance of rain 90 percent.

FRIDAY NIGHT
Showers and thunderstorms, mainly in the evening. Breezy with lows in the lower 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph, becoming southwest around 15 mph with gusts up to 25 mph after midnight. Chance of rain 90 percent.

SATURDAY
Mostly cloudy. Highs in the mid 60s. West winds 10 to 15 mph.

SATURDAY NIGHT
Cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms after midnight. Lows in the upper 40s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

SUNDAY
Thunderstorms, showers. Highs in the lower 60s. Chance of rain 90 percent.

SUNDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 40s. Chance of rain 50 percent.

MONDAY
Mostly cloudy in the morning, then becoming mostly sunny. Highs in the lower 60s.

MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s.

TUESDAY
Sunny. Highs in the lower 70s.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A 30 percent chance of showers. Lows in the upper 40s.

WEDNESDAY
Mostly sunny. Highs in the lower 70s.

WEDNESDAY NIGHT
Mostly clear with a 30 percent chance of showers. Lows in the mid 40s.

THURSDAY
Sunny. Highs in the lower 70s.

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 1-MAY 5  MAY 3-MAY 9    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