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Boone County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
453 PM CST Mon Feb 19 2018

A wintery mix of precipitation was noted across Iowa this afternoon.
Dense fog and some light rain was reported over east central Iowa
while periods of rain occurred over the southeast third to half of 
the state. across the northwest, periods of light freezing rain was 
reported. Temperatures ranged from the lower to mid 20s across the 
west and north to the mid to upper 40s across the southeast. A west to
northwest wind at 10 to 15 mph was common across the state. 

The region will remain in an active pattern for this week. Round two
of the storm system impacting the region today will come tonight and
Tuesday. Showers and thunderstorms with heavy rain will occur across
southeast portions of the Upper Midwest while further northwest,
periods of freezing rain or drizzle will be the main impact to the
area depositing up to a quarter inch of ice and making for treacherous
travel and some potential for broken tree limbs and downed power lines
in the heavier ice accumulations.  

A brief break will come on Wednesday before another system impacts
the region on Wednesday night and Thursday bringing another chance for
freezing rain or freezing drizzle and some snow to northern areas.
Then after a brief break Friday, another system will move across the
area Friday night and Saturday. Highs will be on the cool side with
20sand 30s expected although late in the week, some moderation into 
the 30s and 40s will be possible. Lows will be in the single digits 
and teens moderating into the upper teens to lower 30s. 

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

Precision Agriculture Weather Forecast For BOONE County


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Regional Hourly Observations For BOONE County
Issued at 900 PM CST MON FEB 19 2018

   CENTRAL IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
AMES           CLOUDY    29  28  96 NW8       29.82R FOG     WCI  21  
ANKENY *       CLOUDY    28  28 100 NW8G15    29.84S FOG     WCI  20  
BOONE *        CLOUDY    28  28 100 MISG      29.82R                  
CHARITON *     CLOUDY    30  30 100 NW9       29.82R FOG     WCI  22  
DES MOINES     CLOUDY    28  26  92 NW13      29.83S FOG     WCI  17  
GRINNELL*      FOG       32  31  99 W9        29.80S VSB 3/4 WCI  24  
KNOXVILLE *    FOG       30  30 100 W12       29.81R VSB 1   WCI  21  
MARSHALLTOWN   FOG       32  32 100 W9        29.79R VSB 1   WCI  24  
NEWTON *       FOG       30  30 100 W10G16    29.81S VSB 1/2 WCI  21  
PELLA *        CLOUDY    31  30  97 W10       29.82F FOG     WCI  22  
PERRY *        CLOUDY    26  26  99 NW8       29.84S FOG     WCI  18  

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 900pm CST, Monday February 19, 2018

Across Iowa...temperatures are near 19 degrees west, near 28 degrees central, and near 47 degrees east. Current sky conditions are cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 88%, and the dew point is near 16 degrees. In the central part of the state, relative humidity is near 92%, and the dew point is near 26 degrees. In the east, relative humidity is near 90%, and the dew point is near 44 degrees. There is patchy fog central. Winds are from the north at 12 mph west, where conditions are favorable for spraying. The wind chill is near 7 degrees west. Winds are from the northwest at 13 mph central, where conditions are not favorable for spraying due to strong winds. The wind chill is near 17 degrees central. Winds are from the west at 10 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 51 degrees at Quad Cities. The lowest temperature is 18 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 BOONE County,IA

825 PM CST Mon Feb 19 2018

 DAY ONE  Tonight

A Winter Weather Advisory is in effect for the area for freezing 
rain and ice accumulations. Please refer to the National Weather 
Service website at weather.gov/desmoines for further details.

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday

A Winter Weather Advisory is in effect for the area through Tuesday
morning for freezing rain and ice accumulations. Please refer to 
the National Weather Service website at weather.gov/desmoines for 
further details.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed, however icing reports and
reports any storm related damage would be appreciated.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For BOONE County, IA
854 PM CST Mon Feb 19 2018


WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TUESDAY

REST OF TONIGHT
Areas of fog through the night. A chance of freezing drizzle before midnight. Light freezing rain after midnight. New ice accumulation around one tenth of an inch. Low in the lower 20s. Northwest wind 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of precipitation near 100 percent.

TUESDAY
Cloudy, colder. Patchy fog in the morning. A chance of freezing drizzle in the morning. A light glazing expected. High in the mid 20s. Northwest wind 10 to 15 mph with gusts to around 25 mph. Chance of precipitation 40 percent.

TUESDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. Colder. Low 5 to 10 above. Northwest wind 10 to 15 mph with gusts to around 25 mph.

WEDNESDAY
Sunny. High in the mid 20s. North wind 5 to 10 mph.

WEDNESDAY NIGHT
Partly cloudy through midnight, then mostly cloudy with a 20 percent chance of light snow after midnight. Low around 15. Northeast wind 5 to 10 mph.

THURSDAY
Mostly cloudy with a 40 percent chance of light snow. High in the lower 30s.

THURSDAY NIGHT
Cloudy. Light snow likely through midnight, then a chance of light snow after midnight. Low in the mid 20s. Chance of snow 70 percent.

FRIDAY
Mostly cloudy. High in the mid 30s.

FRIDAY NIGHT
Mostly cloudy. Low 15 to 20.

SATURDAY
Mostly cloudy. A 40 percent chance of light rain possibly mixed with snow in the afternoon. High in the upper 30s.

SATURDAY NIGHT
Mostly cloudy. A 50 percent chance of light snow possibly mixed with rain through midnight. Low in the lower 20s.

SUNDAY
Mostly sunny. High around 40.

SUNDAY NIGHT
Partly cloudy. Low in the lower 20s.

MONDAY
Mostly sunny. High around 40.

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 
                FEB 25-MAR 1 FEB 27-MAR 5    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal      Below     Normal                      
 Precipitation:      Above        Above     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

Monday February 19, 2018 the 50th Day of Year

---------------------------------------------------
SUN
Declination -10.910000
Distance 0.999723 AU
Rise 08:03 EST Set 18:53 EST
Transit Meridian 13:27 EST
Civil Twilight Begins 07:36 EST Ends 19:20 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

FEBRUARY 19TH
HISTORIC WEATHER EVENTS
...1871...
A. Lapham, in Cincinnati, wrote the first public weather forecast.
...1884...
Severe thunderstorms spawned sixty tornadoes in the southeastern U.S.,
killing more than 420 persons and causing three million dollars damage.
Georgia and the Carolinas hardest were hit in the tornado outbreak. (David
Ludlum)
...1888...
A tornado struck Mount Vernon IL. The tornado killed sixteen persons along
its 62 mile path. (David Ludlum)
...1954...
High winds across the southern half of the Great Plains, gusting to 85 mph,
caused the worst duststorms since the 1930s. Graders were needed in places
to clear fence high dirt drifts. (The Weather Channel)

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