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Osceola County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
1040 AM CDT Thu Jul 19 2018

Slow moving showers and storms over northern and eastern Iowa this
morning continue to push east, with cloud cover over much of the 
state. Temperatures this morning have been in the 70s west, but remain
in the 60s east where precipitation is ongoing. Winds have been out of
the south, becoming more westerly, at 5 to 15 mph.

The storms over eastern Iowa will continue to slowly move east 
throughout the day. By early afternoon additional storm development is
expected over central and southeast Iowa. Strong to severe storms are
possible with large hail and damaging winds posing the greatest 
threat. An isolated tornado is also possible. By late evening the 
storms will transition into a heavy rain threat, mainly over eastern 
and northeastern Iowa. A few storms may linger over eastern Iowa 
Friday morning, otherwise Friday should clear out with highs in the 
80s. Clear conditions are expected through the weekend, with highs in 
the 80s and lows in the 60s.

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

Precision Agriculture Weather Forecast For OSCEOLA County


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Regional Hourly Observations For OSCEOLA County
Issued at 1200 PM CDT THU JUL 19 2018

NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHEROKEE       CLOUDY    73  68  84 W13       29.77S                  
DENISON        PTSUNNY   75  66  73 NW14G22   29.82S                  
ESTHERVILLE    LGT RAIN  72  70  93 SE14      29.70F FOG              
ORANGE CITY    CLOUDY    72  70  94 W15       29.77F                  
SHELDON        PTSUNNY   70  70 100 W14       29.75S                  
SIOUX CITY     MOSUNNY   77  67  71 NW18G29   29.77F                  
SPENCER        CLOUDY    76  68  76 W20G29    29.73F                  
STORM LAKE     PTSUNNY   72  66  83 W16G24    29.78F                  

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 1200pm CDT, Thursday July 19, 2018

Across Iowa...temperatures are near 77 degrees west, near 76 degrees central, and near 65 degrees east. Current sky conditions are mostly sunny west, cloudy central, and thunderstorms east. In the west, relative humidity is near 71%, and the dew point is near 67 degrees. In the central part of the state, relative humidity is near 76%, and the dew point is near 68 degrees. In the east, relative humidity is near 90%, and the dew point is near 62 degrees. The livestock heat stress category is no stress west, no stress central, and no stress east. There is patchy fog east. Winds are from the northwest at 18 mph with gusts at 29 mph west, where conditions are not favorable for spraying due to strong winds. Winds are from the southeast at 14 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the northwest at 6 mph east, where conditions are not favorable for spraying due to thunderstorms. Based on current available observations, the highest temperature is 84 degrees at Clarinda. The lowest temperature is 64 degrees at Waterloo, Iowa City, and Dubuque.


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 OSCEOLA County,IA

437 AM CDT Thu Jul 19 2018

 DAY ONE  Today and Tonight

Scattered to numerous showers and thunderstorms are expected today
through this evening. Locally heavy rainfall will be the main
threat, however an isolated strong storm with small hail and gusty
winds to 50 mph will be possible this afternoon in northwest Iowa
and southwest Minnesota.

 DAYS TWO THROUGH SEVEN  Friday through Wednesday

No hazardous weather is expected at this time.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is unlikely today and tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For OSCEOLA County, IA
1227 PM CDT Thu Jul 19 2018

REST OF TODAY
Cloudy with chance of light showers and slight chance of thunderstorms. Highs around 77. West winds 15 to 20 mph with gusts to around 35 mph. Chance of rain 50 percent.

TONIGHT
Mostly cloudy. Chance of light showers and slight chance of thunderstorms in the evening. Lows around 63. Northwest winds 15 to 20 mph with gusts to around 30 mph decreasing to 10 to 15 mph after midnight. Chance of rain 40 percent.

FRIDAY
Partly sunny. Highs around 78. Northwest winds 10 to 15 mph.

FRIDAY NIGHT
Mostly clear. Lows around 61. Northwest winds 5 to 10 mph.

SATURDAY
Partly cloudy in the morning then becoming sunny. Highs around 78. North winds 5 to 10 mph becoming 10 to 15 mph in the afternoon.

SATURDAY NIGHT
Mostly clear. Lows around 61.

SUNDAY
Sunny in the morning then becoming partly cloudy. Highs around 80.

SUNDAY NIGHT
Partly cloudy. Lows around 64.

MONDAY
Partly sunny. Highs around 79.

MONDAY NIGHT
Partly cloudy. Lows around 61.

TUESDAY
Partly cloudy. Highs around 79.

TUESDAY NIGHT
Partly cloudy. Lows around 60.

WEDNESDAY
Partly cloudy. Highs around 76.

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 
                   JUL 24-28 JUL 26-AUG 1    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above     Normal                      
 Precipitation:      Below       Normal     Normal     Normal                      

....  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

Thursday July 19, 2018 the 200th Day of Year

---------------------------------------------------
SUN
Declination 20.660000
Distance 0.999716 AU
Rise 06:56 EDT Set 21:45 EDT
Transit Meridian 14:20 EDT
Civil Twilight Begins 06:24 EDT Ends 22:16 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

///////////////////////////
JULY 19TH...HISTORIC WEATHER EVENTS
...1886...
A hurricane from the Gulf of Mexico crossed Florida causing great damage
from Cedar Keys to Jacksonville. (David Ludlum)
...1901...
Beginning this date, Bowling Green, KY's temperature would rise to or 
above 100 degrees for ten consecutive days, a record.
...1960...
Cow Creek and Greenland Ranch in Death Valley CA reported morning lows of
102 degrees. The afternoon high at Greenland Ranch was 124 degrees, and the
high at Cow Creek that afternoon was 126 degrees. The coolest low for the
entire month for both locations was 82 degrees. (The Weather Channel)
...1974...
A severe thunderstorm with winds to 80 mph and up to two inches of rain
washed out four to five foot deep sections of roadway in Lake Havasu City
AZ. Three persons in a station wagon died as it was carried 3000 feet down
a wash by a ten foot wall of water. (The Weather Channel)
...1977...
Thunderstorms produced torrential rains over parts of southwestern
Pennsylvania. Some places receive more than twelve inches in a seven hour
period. The heavy rains cause flash flooding along streams resulting in
widespread severe damage. The cloudburst floods Johnstown with up to ten
feet of water resulting in 76 deaths, countless injuries, and 424 million
dollars damage. (David Ludlum) (The Weather Channel)
...1987...
Fifteen cities in the western and the southeastern U.S. reported record low
temperatures for the date, including Winnemucca NV with a reading of 33
degrees. Flagstaff AZ reported a record low of 34 degrees. Afternoon and
evening thunderstorms produced severe weather in New York State and New
Jersey. High winds and hail two inches in diameter injured two persons and
caused considerable damage to crops in the Pine Island area of central New
York State. (The National Weather Summary) (Storm Data)
...1988...
Thunderstorms in Nebraska produced more than five inches of rain at Red
Cloud, including two inches in fifteen minutes. Torrid temperatures
continued over California, with record highs of 115 degrees at Red Bluff
and 116 degrees at Redding. (The National Weather Summary) (Storm Data)
...1989...
Early morning thunderstorms in the Lower Mississippi Valley produced 5.50
inches of rain south of Alexander AR in just ninety minutes, and flash
flooding which resulted claimed the life of one woman. Thunderstorms in
Indiana produced 4.95 inches of rain in twelve hours east of Muncie. Eight
cities in the southwestern U.S. reported record high temperatures for the
date, including Las Vegas NV with a reading of 115 degrees, and Phoenix AZ
with a high of 116 degrees. The low that night at Phoenix of 93 degrees was
the warmest of record for that location. (The National Weather Summary)
(Storm Data)

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