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Winneshiek County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
346 AM CST Tue Dec 31 2024

Today: 

Low pressure moving from Missouri into Central Illinois overnight
produced a broad area of light rain and snow across central and
southern Iowa early this morning. There were spotty areas of snow
accumulations with a few areas receiving around an inch or so.
Most primary roads and highways remained wet although less traveled
roads did become slushy in areas. Otherwise, northwest winds increased
and were common from 10 to 20 mph with gusts to almost 30 mph at 
times. 

The light precipitation is expected to come to an end this morning as
the system pulls away from the state. Some minor snow accumulations,
generally less than an inch remain possible in far south central to
southeast Iowa through mid morning, otherwise the north winds persist
for much of the day as cooler air arrives. Additional flurries are
expected late this afternoon into the evening as another weak system
passes through the state. 

Tonight and beyond: 

Any flurries are forecast to end tonight with clearing expected toward
daybreak on New Years Day. Mostly sunny skies will greet the New Year
with near normal temperatures in the mid 20s to lower 30s. However,
a clipper system approaches the state on Thursday with light snow
overspreading much of central into southern Iowa. Minor accumulations
are forecast by Thursday evening along with the arrival of cooler air.
Highs by Friday are forecast to remain in the teens to lower 20s over
much of the state as cold polar air overspread the Midwest. 

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

Precision Agriculture Weather Forecast For WINNESHIEK County


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Regional Hourly Observations For WINNESHIEK County
Issued at 400 AM CDT SUN JUN 22 2025

   NORTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CEDAR RAPIDS   CLEAR     77  71  82 S10       29.87S TC  25           
CHARLES CITY * CLEAR     77  73  88 S13G18    29.81S TC  25           
CLINTON *      CLEAR     78  73  84 SW10      29.93R HX  81  TC  26   
DUBUQUE        CLEAR     77  70  79 S15       29.90R TC  25           
WATERLOO       CLEAR     77  71  82 S9        29.82S TC  25           

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 300am CDT, Sunday June 22, 2025

Across Iowa...temperatures are near 82 degrees west, near 81 degrees central, and near 81 degrees east. Current sky conditions are clear west, clear central, and clear east. In the west, relative humidity is near 66%, and the dew point is near 70 degrees. The heat index is near 86 degrees west. In the central part of the state, relative humidity is near 71%, and the dew point is near 71 degrees. The heat index is near 85 degrees central. In the east, relative humidity is near 74%, and the dew point is near 72 degrees. The heat index is near 85 degrees east. The livestock heat stress category is no stress west, no stress central, and no stress east. Winds are from the south at 17 mph with gusts at 25 mph west, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 21 mph with gusts at 28 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 13 mph with gusts at 22 mph east, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 82 degrees at Spencer and Sioux City. The lowest temperature is 76 degrees at Lamoni.


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 WINNESHIEK County,IA

328 AM CDT Sun Jun 22 2025

 DAY ONE  Today and Tonight

Dangerous heat continues today with heat indices of 100F to 105F,
possibly higher locally, mainly in valley locations. Overnight 
lows in the mid to upper 70s are expected, offering little relief 
tonight.

 DAYS TWO THROUGH SEVEN  Monday through Saturday

An active weather pattern develops Monday as rounds of showers and
storms are expected through the work week. Some storms Monday
afternoon and evening could be strong to severe. Repeated heavy
rainfall this week could lead to areas of flooding.

 SPOTTER INFORMATION STATEMENT  

No action needed.

 EMERGENCY MANAGEMENT COORDINATION  

No webinar is scheduled.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For WINNESHIEK County, IA
312 AM CDT Sun Jun 22 2025


HEAT ADVISORY NOW IN EFFECT UNTIL 7 AM CDT MONDAY

TODAY
Mostly clear and breezy, hot with highs in the lower 90s. South winds 15 to 25 mph with gusts up to 35 mph. Heat index values up to 105.

TONIGHT
Clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. South winds 15 to 20 mph with gusts up to 35 mph. Heat index values up to 100 early in the evening.

MONDAY
Mostly sunny. Showers with thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Southwest winds 10 to 20 mph. Gusts up to 30 mph in the morning. Chance of rain 80 percent. Heat index values in the mid 90s in the afternoon.

MONDAY NIGHT
Cooler. Showers with thunderstorms likely in the evening, then showers and a chance of thunderstorms after midnight. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 90 percent.

TUESDAY
Not as warm. A chance of thunderstorms. Showers likely. Highs in the mid 70s. East winds around 5 mph. Chance of rain 70 percent.

TUESDAY NIGHT
Showers and a chance of thunderstorms. Lows in the mid 60s. Chance of rain 90 percent.

WEDNESDAY THROUGH THURSDAY
Showers with thunderstorms likely. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 90 percent.

THURSDAY NIGHT
Showers likely and a chance of thunderstorms. Lows in the mid 60s. Chance of rain 70 percent.

FRIDAY THROUGH SATURDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Lows in the upper 60s. Chance of rain 50 percent.

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 
                JUN 27-JUL 1 JUN 29-JUL 5    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal                                            
 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


Historical Weather And Climate Facts For Today

/////////////////////////
JUNE 22ND...HISTORIC WEATHER EVENTS
...1947...
Twelve inches of rain fell in forty-two minutes at Holt MO establishing a
world rainfall record. That record was tied on January 24-25, 1956, at the
Kilauea Sugar Plantation in Hawaii, as their state record was established
with 38 inches of rain in 24 hours. (The Weather Channel)
...1972...
Hurricane Agnes deluged Pennsylvania and New York State with torrential
rains resulting in the most costly flood in U.S. history. In the Middle
Susquehanna Valley of Pennsylvania, 24 hour rainfall amounts were generally
8 to 12 inches, with up to 19 inches in extreme southwestern Schuylkill
County. At Wilkes-Barre PA the dike was breached destroying much of the
town. Flooding resulted in 117 deaths and 3.1 billion dollars damage.
(David Ludlum)
...1981...
A young woman from Lubbock TX was struck by lightning. The bolt of
lightning struck just above her right shoulder near her neck, and passed
right to left through her body, tearing her warm-ups, causing her tennis
shoes to explode, and lifting her two feet into the air. (The Weather
Channel)
...1992...
Record cold prevailed in the eastern U.S. with 67 low temperature records for 
the date tied or broken.  Indianapolis, Indiana dipped to 37 degrees to set a 
new all-time record low temperature for June and the coldest summer temperature 
ever.  In sharp contrast, it was a furnace in the Pacific Northwest with Eugene 
and Medford, Oregon setting new all-time record high temperatures for June with 
102 and 111 degrees, respectively.

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