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Scott County, IA Weather and Climate Synopsis

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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
1058 AM CST Sat Dec 16 2017

It has been a quiet start to the day across much of the Upper Midwest,
including here in the state of Iowa where temperatures started out
at around 30 to 35 at sunrise this morning. Well above normal highs
are expected this afternoon as a warm air mass and plentiful sunshine
spread over the area. Expect highs in the mid 40s to mid 50s with
mainly light winds. More cloud cover will likely hold temperatures
back a few degrees on Sunday, including a chance for light rain or
snow in south central and southeast Iowa.

Above normal temperatures and dry conditions are likely though the
first half of next week. Attention then turns to an area of low
pressure that will cross the northern Plains late Wednesday night into
Thursday, which will deliver cold temperatures and possibly the first
accumulating snowfall of the season to much of the state. While it is
still too early to determine snowfall amounts, those with travel 
plans during this time period should check ahead for forecast updates 
and potential impacts to local travel conditions. 

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

Precision Agriculture Weather Forecast For SCOTT County

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Regional Hourly Observations For SCOTT County
Issued at 400 PM CST SAT DEC 16 2017

DAVENPORT      CLEAR     48  25  40 SW3       29.93R                  
IOWA CITY      CLEAR     51  27  39 SW3       29.91R                  
MT. PLEASANT * CLEAR     52  24  34 SW8       29.90R                  
MUSCATINE *    CLEAR     52  27  37 SW6       29.91R                  
QUAD CITIES    CLEAR     50  26  39 SW6       29.90R                  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 400pm CST, Saturday December 16, 2017

Across Iowa...temperatures are near 47 degrees west, near 54 degrees central, and near 48 degrees east. Current sky conditions are clear west, mostly cloudy central, and clear east. In the west, relative humidity is near 53%, and the dew point is near 31 degrees. In the central part of the state, relative humidity is near 34%, and the dew point is near 26 degrees. In the east, relative humidity is near 40%, and the dew point is near 25 degrees. Winds are from the north at 10 mph west, where conditions are favorable for spraying. Winds are calm central, where conditions are favorable for spraying. Winds are from the southwest at 3 mph east, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 54 degrees at Des Moines. The lowest temperature is 39 degrees at Estherville.

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 SCOTT County,IA

331 PM CST Sat Dec 16 2017


Patchy dense fog is possible late tonight north of U.S. Highway
30. Any dense fog that develops could deposit a layer of ice on 
roadways. Motorists should remain alert for reduced visibility and
slick roads.


Patchy dense fog and icy roads may continue Sunday morning, north
of U.S. Highway 30.

Areas of dense fog reducing visibilties down to a quarter mile or 
less, may occur across portions of the Outlook area Sunday night 
into early Monday morning. Also, some patchy freezing drizzle may 
form in areas where the surface temperature drops below freezing 
later Sunday night into early Monday morning. The latest indications 
suggest that areas generally along and 30 miles north of the 
Interstate 80 corridor may be more favored for this activity. If the 
freezing drizzle does manage to form late Sunday night, there may be 
some risk of it lingering into the Monday morning commute.

Accumulating snow is possible Thursday through Friday. It is too 
early to forecast the exact track of the low and potential snow 
amounts. Those with travel plans late in the week should keep up 
with the latest forecast.


Reports of any dense fog and slick road conditions tonight and
Sunday night would be appreciated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For SCOTT County, IA
342 PM CST Sat Dec 16 2017

Sunny. South wind 5 to 10 mph.

Partly cloudy. Low in the upper 20s. East wind 5 to 10 mph.

Patchy fog in the morning. Mostly cloudy with a 30 percent chance of light rain. High in the lower 40s. Southeast wind around 5 mph shifting to the southwest in the afternoon.

Mostly cloudy. A slight chance of drizzle in the evening. Areas of fog through the night. Low in the upper 20s. West wind 5 to 10 mph. Chance of precipitation 20 percent.

Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. High in the mid 40s. Southwest wind 10 to 15 mph.

Partly cloudy. Low in the lower 30s. Southwest wind 10 to 15 mph.

Mostly clear. High in the mid 40s. Low in the mid 20s.

Mostly sunny. High in the lower 40s.

Mostly cloudy. Low in the upper 20s.

Cloudy. Rain possibly mixed with snow in the afternoon. High in the upper 30s. Chance of precipitation 70 percent.

Cloudy. Snow likely in the evening, then a chance of snow after midnight. Low in the lower 20s. Chance of snow 70 percent.

Colder. Partly sunny. High in the upper 20s.

Partly cloudy. Low around 16. High in the upper 20s.

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 
                   DEC 22-26    DEC 24-30    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal      Below                      
 Precipitation:     Normal       Normal     Normal      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

Saturday December 16, 2017 the 350th Day of Year

Declination -23.350000
Distance 0.999725 AU
Rise 08:36 EST Set 17:44 EST
Transit Meridian 13:10 EST
Civil Twilight Begins 08:05 EST Ends 18:15 EST

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

New England experienced one of their coldest days of record. At noon on
that bitterly cold Wednesday the mercury stood at four degrees below at
Boston, 15 degrees below at Norfolk CT, and 17 degrees below at Hanover NH.
The temperature at Boston was 12 degrees below zero by sunset. Gale force
winds accompanied the severe cold, and that night a great New York City
fire destroyed much of the financial district. (David Ludlum)
A bill was introduced in the House of Representatives, 41st Congress, 
calling for the taking [of] meteorological observations at the military 
stations in the interior of the continent, and for giving notice on the 
northern lakes and Atlantic seaboard of the approach and force of storms. 
This would be signed in to law February 9, 1870, by President Grant, 
establishing what would come to be called the National Weather Service. You 
can see the actual bill on-line at: 
An ice jam closed the Ohio River between Warsaw KY and Rising Sun IN. The
thirty foot high ice jam held for 58 days, and backed up the river a
distance of 100 miles. (David Ludlum)
A Pacific storm battered the coast of California with rain and high winds,
and dumped heavy snow on the mountains of California. Winds along the coast
gusted to 70 mph at Point Arguello, and winds in the Tehachapi Mountains of
southern California gusted to 100 mph at Wheeler Ridge. Snowfall totals
ranged up to 24 inches at Mammoth Mountain. Snow fell for two minutes at
Malibu Beach, and Disneyland was closed due to the weather for only the
second time in twenty-four years. A winter storm which began in the
Southern Rockies four days earlier finished its course producing snow and
high winds in New England. Snowfall totals ranged up to 19 inches at
Blanchard ME. (The National Weather Summary) (Storm Data)
Fairbanks AK reported freezing rain and record warm temperatures. The
afternoon high of 41 degrees was 43 degrees above normal. Snow and high
winds continued to plague the mountains of southern California. Mount
Wilson CA reported two inches of rain in six hours during the early
morning, and a storm total of more than 3.50 inches of rain. (The National
Weather Summary)
Fifty-seven cities from the Southern and Central Plains to the Appalachians
reported record low temperatures for the date, including North Platte NE
with a reading of 17 degrees below zero. Squalls in the Great Lakes Region
produced 18 inches of snow at Syracuse NY, and 30 inches at Carlisle IND.
Low pressure brought heavy snow to northern New England, with 18 inches
reported at Derby VT and Saint Johnsbury VT. (The National Weather Summary)
(Storm Data)

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