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Jefferson 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

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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
1052 AM CST Sat Nov 17 2018

It was generally unpleasant overnight and certainly continued this
morning. The main attention getter was the snowfall that was seen over
large parts of northern, northeast, and eastern Iowa where as much as
around 3 inches of snow fell in some spots. Further south, areas of
central Iowa saw light snow with little to now accumulations as well
as some periods of light freezing drizzle. Even further south, near
the Missouri border, light rain turned over to snow this morning as
below freezing temperatures moved in and continues as of late this

While snow has ended over the northern two thirds of the state, it
will continue over much of far southern Iowa throughout the day. In
the end, they may see accumulations of up to 2 inches, especially near
the Missouri border. Otherwise, the day will be highlighted by cloud
cover, cooling temperatures, and gusty northerly winds. High
temperatures for the calendar have already occurred, around or just
after midnight in many cases, thanks to the intrusion of the colder
air and strong northerly winds today. 

Fortunately, the outlook over the next few days includes warming
temperatures and little to no precipitation until the end of next
week. Temperatures will slowly rebound into the 30s during the early
portions of next week, then should warm quickly into the 40s and even
low 50s for some by Thanksgiving Day.

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

Precision Agriculture Weather Forecast For JEFFERSON County

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Regional Hourly Observations For JEFFERSON County
Issued at 100 PM CST SAT NOV 17 2018

BURLINGTON     LGT SNOW  34  31  88 NE13      30.25S FOG     WCI  25  
FAIRFIELD *    FOG       34  32  93 NE15      30.27S VSB 1   WCI  24  
FORT MADISON * LGT SNOW  34  34 100 NE12      30.25S WCI  25          
KEOKUK *       LGT RAIN  36  36 100 NE10G16   30.22F WCI  28          
OSKALOOSA *    LGT SNOW  32  31  96 NE12      30.30R VSB 3/4 WCI  23  
CENTERVILLE *  MIX PCPN  32  32 100 N15       30.26S WCI  22          
OTTUMWA        SNOW      33  32  96 NE12      30.28S VSB 1/2 WCI  24  
WASHINGTON *   CLOUDY    34  34 100 NE15      30.29S FOG     WCI  24  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 100pm CST, Saturday November 17, 2018

Across Iowa...temperatures are near 24 degrees west, near 27 degrees central, and near 33 degrees east. Current sky conditions are cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 65%, and the dew point is near 14 degrees. In the central part of the state, relative humidity is near 92%, and the dew point is near 25 degrees. In the east, relative humidity is near 81%, and the dew point is near 28 degrees. Winds are from the north at 18 mph with gusts at 28 mph west, where conditions are not favorable for spraying due to strong winds. The wind chill is near 10 degrees west. Winds are from the north at 14 mph central, where conditions are not favorable for spraying due to strong winds. The wind chill is near 16 degrees central. Winds are from the northeast at 13 mph east, where conditions are not favorable for spraying due to strong winds. The wind chill is near 24 degrees east. 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 35 degrees at Quad Cities. The lowest temperature is 17 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 JEFFERSON County,IA

112 PM CST Sat Nov 17 2018


This afternoon, light snow, possibly mixed with rain, can be
expected south of Interstate 80. By sunset tonight, the
precipitation will be all snow. Snow accumulations of around an 
inch or less is expected south of Interstate 80. 


The probability for widespread hazardous weather is low.


Spotter activation will not be needed this afternoon or tonight. 
However, reports of snowfall over an inch would be appreciated.
This will be for locations south of Interstate 80.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For JEFFERSON County, IA
1127 AM CST Sat Nov 17 2018

Colder, cloudy. Light snow likely late in the morning, then a chance of light snow early in the afternoon. Light snow likely late in the afternoon. New snow accumulation up to 1 inch. High in the mid 30s. Northeast wind 10 to 20 mph. Gusts up to 25 mph in the afternoon. Chance of snow 70 percent.

Colder, cloudy. Light snow likely in the evening, then a chance of light snow after midnight. Snow accumulation up to 1 inch. Total snow accumulation up to 2 inches. Low in the lower 20s. North wind 10 to 15 mph. Chance of snow 60 percent.

Sunny. High in the lower 30s. North wind 5 to 10 mph shifting to the west in the afternoon.

Mostly clear. Low in the lower 20s. Southwest wind 5 to 10 mph.

Partly sunny. High around 40. West wind 10 to 15 mph.

Mostly cloudy in the evening then becoming partly cloudy. Low in the lower 20s.

Mostly sunny. High in the upper 30s.

Mostly clear. Low in the upper 20s.

Clear. High in the upper 40s. Low in the lower 30s.

Sunny. High around 50.

Partly cloudy in the evening then becoming mostly cloudy. Low in the upper 30s.

Mostly cloudy with a 50 percent chance of rain. High around 50.

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 
                   NOV 22-26    NOV 24-30    DEC   DEC18-FEB19                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above     Normal      Above                      
 Precipitation:      Above        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

Saturday November 17, 2018 the 321th Day of Year

Declination -19.210000
Distance 0.999723 AU
Rise 08:07 EST Set 17:51 EST
Transit Meridian 12:59 EST
Civil Twilight Begins 07:38 EST Ends 18:20 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

Southwest winds of hurricane force swept the Berkshire and Green Mountains
of New England causing extensive forest and structural damage. (David
A tornado cut a seventeen mile path across Alexandria and southeastern
Washington D.C. injuring 31 persons. The tornado struck the Naval Air
Station where a wind gust of 93 mph was recorded. A waterspout was seen
over the Potomac River ninety minutes later. (David Ludlum) (The Weather
The temperature at Minneapolis MN reached 71 degrees, their warmest reading
of record for so late in the autumn. (The Weather Channel)
A storm in the Rockies produced 21 inches of snow at the Monarch ski resort
in Colorado, with 14 inches reported at Steamboat Springs CO. Early morning
thunderstorms in the southeastern U.S. drenched Mary Esther FL with 4.43
inches of rain. Gale force winds over the Great Lakes Region gusted to 49
mph at Johnstown PA. (The National Weather Summary) (Storm Data)

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