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Washington County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
527 PM CDT Fri Mar 23 2018

Skies were cloudy today with light rain and snow flurries scattered
across Iowa from northwest to southeast. Temperatures this afternoon
were in the upper 30s to low 40s across northern Iowa with mid to
upper 40s for central Iowa and some low 50s across far southern Iowa.
Winds have generally been out of the east at 10 to 15 mph, increasing
to 20 to 25 mph across western Iowa by 5 pm. 

A large storm system will impact the state starting tonight and
continuing through mid day Saturday. Rain will become more widespread
across Iowa this evening, switching over to snow across northeast Iowa
late tonight. Further south will see precipitation fall as rain.
Precipitation will come to an end by mid day on Saturday, with snow
totals of 3 to 6 inches across the northeastern half of Iowa, with 
areas of 8 to 12 inches from Mason City to Waterloo and Davenport. In
addition, rain totals for central and southeast Iowa will be half an 
inch to over an inch and a half. This storm will impact portions of
the Dakotas, Minnesota, Wisconsin, and Illinois where winter storm
advisories and warnings stretching across the region. Strong wind 
gusts overnight will reduce visibilities and could damage trees and 
structures weighed down by heavy wet snow.

Sunday will remain dry with temperatures in the 30s and 40s across
Iowa. Another storm system will impact the area Monday into Tuesday,
bringing rain to the region.

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

Precision Agriculture Weather Forecast For WASHINGTON County

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Regional Hourly Observations For WASHINGTON County
Issued at 500 PM CDT FRI MAR 23 2018

BURLINGTON     CLOUDY    49  25  39 E13G24    30.12F                  
FAIRFIELD *    CLOUDY    46  28  49 SE15      30.10S                  
FORT MADISON * CLOUDY    48  28  46 E23G29    30.11F                  
KEOKUK *       CLOUDY    45  34  65 E16       30.10F                  
OSKALOOSA *    CLOUDY    46  26  45 SE22G30   30.09S                  
OTTUMWA        CLOUDY    46  31  55 E15       30.09F                  
WASHINGTON *   CLOUDY    46  28  49 E18G28    30.12F                  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 500pm CDT, Friday March 23, 2018

Across Iowa...temperatures are near 46 degrees west, near 48 degrees central, and near 49 degrees east. Current sky conditions are cloudy west, cloudy central, and fair east. In the west, relative humidity is near 65%, and the dew point is near 35 degrees. In the central part of the state, relative humidity is near 47%, and the dew point is near 29 degrees. In the east, relative humidity is near 30%, and the dew point is near 19 degrees. Winds are from the east at 25 mph with gusts at 39 mph west, where conditions are not favorable for spraying due to strong winds. Winds are from the east at 18 mph with gusts at 26 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the east at 18 mph east, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 52 degrees at Clarinda. The lowest temperature is 40 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 WASHINGTON County,IA

452 PM CDT Fri Mar 23 2018


A winter storm warning remains in effect from late evening through
Saturday afternoon over most areas along and north of Interstate
80. Rain moving into the area will mix with and change to a heavy
wet snow along and north of Highway 30 after 10 PM CDT, and spread
southward into Saturday morning. A mix of rain, sleet, and snow
may develop along the Interstate 80 corridor for a period after
midnight, before transitioning back to snow later Saturday 
morning. There may be some sleet accumulations in these 
transition areas adding to the slickness. Hazardous travel 
conditions are expected to increase by late tonight and into early
Saturday morning. The heavy wet snow will combine with strong 
east winds gusting up to 35 MPH late tonight and early Saturday 
morning to produce sharply reduced visibilties, and may result in 
sporadic power outages from downed tree branches.

Embedded non-severe thunderstorms are possible along and mainly south
of I-80 late tonight. These storms may produce small hail and some
cloud to ground lightning.


Snow, heavy at times, will continue Saturday before diminishing 
in the afternoon. Widespread snowfall amounts of 4 to 8 inches 
amounts are expected in the warning area, with localized amounts
of 8 to 12 inches possible. Lesser amounts of 2 to 5 inches of
snowfall, along with some sleet accumulations will occur from
Sigourney Iowa, eastward to Aledo in west central Illinois where a
Winter Weather Advisory is in effect from late this evening
through Saturday afternoon.

Sunday night. Light mixed precipitation may develop that will quickly
change to all rain as temperatures rise well above freezing by Monday


Spotter activation is not anticipated through tonight. Any 
reports of snowfall amounts over an inch and hazardous travel 
conditions would be appreciated.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For WASHINGTON County, IA
327 PM CDT Fri Mar 23 2018


Brisk. Cloudy with a 50 percent chance of light rain. East wind 15 to 25 mph.

Windy, rain. Low in the mid 30s. East wind 20 to 30 mph. Gusts up to 30 mph increasing to 40 mph after midnight. Chance of rain near 100 percent.

Windy, colder. Rain possibly mixed with snow in the morning, then light snow possibly mixed with rain in the afternoon. Snow accumulation of 1 to 4 inches. High in the mid 30s. East wind 20 to 30 mph with gusts to around 35 mph. Chance of precipitation near 100 percent.

Mostly cloudy. Light snow likely possibly mixed with rain in the evening, then a slight chance of light snow after midnight. Little or no snow accumulation. Low in the mid 20s. East wind 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of precipitation 70 percent.

Mostly sunny. High in the upper 30s. East wind 10 to 20 mph.

Partly cloudy in the evening then becoming mostly cloudy. Low in the upper 20s. East wind 10 to 15 mph.

Mostly cloudy. A chance of freezing rain possibly mixed with rain in the morning, then rain in the afternoon. High in the upper 40s. Chance of precipitation 80 percent.

Not as cool. Rain. Low in the mid 40s. Chance of rain 90 percent.

Rain likely. High in the mid 50s. Chance of rain 70 percent.

Colder. Mostly cloudy. Low in the lower 30s.

Partly cloudy. High in the lower 50s. Low in the lower 30s.

Partly sunny. High around 50.

Partly cloudy. Low in the upper 20s. High in the upper 40s.

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 
                MAR 29-APR 2 MAR 31-APR 6    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Below     Normal                      
 Precipitation:     Normal        Below     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

Friday March 23, 2018 the 82th Day of Year

Declination 1.420000
Distance 0.999721 AU
Rise 07:11 EDT Set 19:30 EDT
Transit Meridian 13:20 EDT
Civil Twilight Begins 06:44 EDT Ends 19:57 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

A vicious tornado hit the city of Omaha NE. The tornado struck during the
late afternoon on Easter Sunday, and in just twelve minutes cut a swath of
total destruction five miles long and two blocks wide across the city
killing 94 persons and causing 3.5 million dollars property damage. (David
Pocatello ID received a record 14.6 inches of snow in 24 hours. (The
Weather Channel)

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