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Clay County, IA Weather and Climate Synopsis

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36 Hr. Forecast Map
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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
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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
516 PM CDT Thu Aug 16 2018

A low pressure system brought rain showers and thunderstorms to much
of Iowa this afternoon. By early evening, the bulk of the activity 
was in northeast Iowa, with a few isolated storms in southern Iowa. 
Temperatures this afternoon ranged from the mid 70s to lower 80s. 
Winds shifted to a northwesterly direction. A few thunderstorms did 
manage to produce a couple inches of rain in localized areas. 

Across the rest of the region, eastern and western Missouri has been
the active spot with widespread thunderstorms. 

For this evening, a few isolated rain showers are possible. Main story
overnight will be the potential for patchy fog development that could
last into the early morning hours. Overnight low temperatures will be
in the mid 60s. Tomorrow, highs will be in the mid 80s. Conditions
should remain dry. Heading into the weekend, high temperatures will
remain in the mid 80s. Rain and thunderstorm chances return Sunday.
There is a possibility of severe weather, however specific details 
are not yet known. 

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

Precision Agriculture Weather Forecast For CLAY County

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Regional Hourly Observations For CLAY County
Issued at 1000 PM CDT THU AUG 16 2018

CARROLL *      CLEAR     68  68 100 N3        30.01R                  
CHEROKEE *     CLEAR     66  66 100 CALM      30.03R                  
DENISON *      PTCLDY    68  66  94 CALM      30.04R                  
LE MARS *      CLEAR     68  66  94 CALM      30.03R                  
ORANGE CITY *  CLEAR     72  66  83 NE3       30.05R                  
SHELDON *      CLEAR     64  64 100 CALM      30.03R                  
SIOUX CITY     CLEAR     71  66  84 N7        30.03R                  
SPENCER        CLEAR     66  64  93 NW5       30.04R                  
STORM LAKE *   MOCLDY    66  66 100 N5        30.04R                  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 1000pm CDT, Thursday August 16, 2018

Across Iowa...temperatures are near 71 degrees west, near 69 degrees central, and near 68 degrees east. Current sky conditions are clear west, partly cloudy central, and fair east. In the west, relative humidity is near 84%, and the dew point is near 66 degrees. In the central part of the state, relative humidity is near 90%, and the dew point is near 66 degrees. In the east, relative humidity is near 93%, and the dew point is near 66 degrees. The livestock heat stress category is no stress west, no stress central, and no stress east. Winds are from the north at 7 mph west, where conditions are favorable for spraying. Winds are from the northeast at 6 mph central, where conditions are favorable for spraying. Winds are calm east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 78 degrees at Burlington. The lowest temperature is 66 degrees at Storm Lake, Spencer, Marshalltown, Harlan, and Cedar Rapids.

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 CLAY County,IA

425 AM CDT Thu Aug 16 2018

 DAY ONE  Today and Tonight

Scattered showers and thunderstorms will be possible across the
area today. While no severe storms are expected, any 
thunderstorms that do develop could produce heavy rainfall.

 DAYS TWO THROUGH SEVEN  Friday through Wednesday

No hazardous weather is expected at this time.


Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For CLAY County, IA
957 PM CDT Thu Aug 16 2018

Partly cloudy. Patchy fog after midnight. Lows around 62. Northwest winds 5 to 10 mph.

Partly cloudy. Patchy fog in the morning. Highs around 83. North winds 5 to 10 mph.

Mostly clear. Lows around 59. North winds around 5 mph becoming northwest after midnight.

Sunny. Highs around 84. West winds around 5 mph becoming southeast in the afternoon.

Mostly clear. Lows around 63. Southeast winds 5 to 10 mph.

Partly cloudy in the morning then becoming mostly cloudy. A 50 percent chance of thunderstorms. Highs around 80.

Showers likely and chance of thunderstorms. Lows around 62. Chance of rain 70 percent.

Mostly cloudy with a 50 percent chance of thunderstorms. Highs around 75.

Partly cloudy. Lows around 56.

Sunny. Highs around 76.

Mostly clear. Lows around 54.

Sunny. Highs around 79.

Mostly clear. Lows around 57.

Sunny. Highs around 80.

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
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   AUG 22-26    AUG 24-30    AUG       AUG-OCT                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Above      Above      Above                      
 Precipitation:     Normal        Above     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 August 16, 2018 the 228th Day of Year

Declination 13.420000
Distance 0.999717 AU
Rise 07:23 EDT Set 21:12 EDT
Transit Meridian 14:18 EDT
Civil Twilight Begins 06:55 EDT Ends 21:41 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

The Battle of Bennington, delayed a day by rain, was fought. The rain
delayed British reinforcements, and allowed the Vermont Militia to arrive
in time, enabling the Americans to win a victory by defeating two enemy
forces, one at a time. (David Ludlum)
A dry spell began in San Bernardino County of southern California that
lasted until the 6th of May in 1912, a stretch of 994 days! Another dry
spell, lasting 767 days, then began in October of 1912. (The Weather
Altapass NC was deluged with 22.22 inches of rain in 24 hours to establish
a state record. (The Weather Channel)
Afternoon and evening thunderstorms developing along a cold front produced
severe weather from Oklahoma to Wisconsin and Lower Michigan. Thunderstorms
in central Illinois produced wind gusts to 80 mph at Springfield which
toppled two large beer tents at the state fair injuring 58 persons.
Thunderstorms also drenched Chicago IL with 2.90 inches of rain, making
August 1987 their wettest month of record. (The National Weather Summary)
(Storm Data)
Thunderstorms developing along a slow moving cold front produced severe
weather from North Dakota to Lower Michigan during the day. Nine tornadoes
were sighted in North Dakota, and thunderstorms also produced hail three
inches in diameter at Lakota ND, and wind gusts to 83 mph at Marais MI.
Thirty-seven cities in the northeastern U.S. reported record high
temperatures for the date, including Rockford IL with a reading of 104
degrees. (The National Weather Summary) (Storm Data)
Late afternoon and evening thunderstorms in the Central High Plains Region
produced golf ball size hail at La Junta CO, Intercanyon CO, and Custer SD.
Afternoon thunderstorms over South Texas drenched Brownsville with 2.60
inches of rain. Fair skies allowed viewing of the late evening full lunar
eclipse from the Great Lakes Region to the Northern and Central Plains
Region, and across much of the western third of the country. (The National
Weather Summary) (Storm Data)

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