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Greene 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

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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
428 AM CST Wed Dec 13 2017

The weather was quiet for much of the night across Iowa as warmer air
moved into the state. Temperatures bottomed out on Tuesday evening
before slowly rising overnight ahead of an approaching cold front. The
temperatures were aided by a modest south to southwest wind at 10 to
20 mph. Readings during the early morning hours ranged from the mid
20s in far eastern Iowa to the mid 40s in northwest Iowa. Winds far
northwest Iowa had already become northwest as a front entered the
state just prior to sunrise.

The cold front will race southeast across Iowa and the Midwest today
as low pressure drops through Wisconsin and eventually into Indiana by
this evening. Strong northwest winds will occur behind the cold front
with numerous Wind Advisories in effect from the Plains through much
of Iowa. Wind gusts of 40 to 50 mph will be common in these areas
until the winds slowly begin to weaken later today. Colder air will
also spread across the region on the northwest winds with falling
temperatures in Iowa by this afternoon. Clouds are forecast to linger
tonight but no precipitation is forecast across the region. Another
weak system will drop southeast through the Plains on Thursday into
Thursday night. Some light snow is expected through the Missouri River
valley during this time with some of the precipitation clipping
western Iowa. Otherwise, little in the way of rain or snow is expected
into Saturday with temperatures moderating into the first half of the

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

Precision Agriculture Weather Forecast For GREENE County

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Regional Hourly Observations For GREENE County
Issued at 600 AM CST WED DEC 13 2017

CARROLL *      PTCLDY    41  23  48 W20       29.49F                  
CHEROKEE *     CLOUDY    46  30  54 NW17G35   29.52R                  
DENISON *      CLOUDY    46  25  42 W15G22    29.55F                  
LE MARS *      CLOUDY    48  30  49 NW28G43   29.56R                  
ORANGE CITY *  PTCLDY    46  34  61 NW26G39   29.53R                  
SHELDON *      CLOUDY    43  34  70 NW31G39   29.49R                  
SIOUX CITY     MOCLDY    51  28  41 NW32G47   29.56S                  
6HR MIN TEMP:  23; 6HR MAX TEMP:  51; 6HR PCP: TRACE;                

SPENCER        CLOUDY    43  32  65 NW29G46   29.46R                  
6HR MIN TEMP:  34; 6HR MAX TEMP:  44;                                

STORM LAKE *   CLOUDY    45  28  53 NW26G35   29.49R                  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 600am CST, Wednesday December 13, 2017

Across Iowa...temperatures are near 51 degrees west, near 39 degrees central, and near 31 degrees east. Current sky conditions are mostly cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 41%, and the dew point is near 28 degrees. In the central part of the state, relative humidity is near 52%, and the dew point is near 23 degrees. In the east, relative humidity is near 63%, and the dew point is near 20 degrees. Winds are from the northwest at 32 mph with gusts at 47 mph west, where conditions are not favorable for spraying due to strong winds. Winds are from the west at 17 mph with gusts at 24 mph central, where conditions are not favorable for spraying due to strong winds. The wind chill is near 30 degrees central. Winds are from the south at 22 mph with gusts at 29 mph east, where conditions are not favorable for spraying due to strong winds. The wind chill is near 18 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 51 degrees at Sioux City. The lowest temperature is 26 degrees at Dubuque.

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 GREENE County,IA

336 AM CST Wed Dec 13 2017

 DAY ONE  Today and tonight

A Wind Advisory is in effect for the area. Please refer to the 
National Weather Service website at for 
further details.

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday

No hazardous weather is expected at this time.


Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For GREENE County, IA
522 AM CST Wed Dec 13 2017


Mostly cloudy. Windy. High in the lower 40s. Northwest wind 15 to 30 mph increasing to 25 to 30 mph in the afternoon. Gusts up to 45 mph.

Mostly cloudy. Breezy. Low around 20. Northwest wind 10 to 20 mph. Gusts up to 35 mph through midnight.

Mostly cloudy. High in the lower 30s. Northwest wind 5 to 10 mph.

Mostly cloudy. A chance of flurries through midnight. Low in the lower 20s. Northwest wind 5 to 10 mph.

Partly sunny. High in the upper 30s. West wind 10 to 15 mph with gusts to around 25 mph.

Mostly cloudy. Low in the mid 20s.

Partly sunny. High in the mid 40s.

Mostly cloudy. Low in the mid 20s.

Mostly cloudy. High around 40.

Partly cloudy. Low in the mid 20s.

Mostly sunny. High in the mid 40s.

Partly cloudy. Low in the upper 20s.

Mostly sunny. Breezy. High in the mid 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 
                   DEC 18-22    DEC 20-26    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Below     Normal      Below                      
 Precipitation:      Below       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

Wednesday December 13, 2017 the 347th Day of Year

Declination -23.210000
Distance 0.999724 AU
Rise 08:34 EST Set 17:43 EST
Transit Meridian 13:08 EST
Civil Twilight Begins 08:03 EST Ends 18:14 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

A heavy snowstorm kicked off the snowiest winter in modern records for
western New England. (The Weather Channel)
Record cold weather gripped the nation. The low temperature in Lexington, KY 
fell to -6 degrees (record low on this date), -3 at Covington and -3 at Paducah. 
Severe cold conditions went as far south as Florida with a hard freeze. Morning 
lows reached 35 degrees at Miami, 18 degrees at Tampa, and 12 degrees at 
Jacksonville. It was the coldest December weather of the 20th century and caused 
millions of dollars damage to crops and foliage. In Georgia, the morning low of 
9 degrees below zero at Blairsville established a state record for the month of 
A major winter storm produced high winds and heavy snow in the Southern
Rockies and the Southern High Plains. Snowfall totals in New Mexico ranged
up to 25 inches at Cedar Crest, with up to three feet of snow reported in
the higher elevations. Winds of 75 mph, with gusts to 124 mph, were
reported northeast of Albuquerque NM. El Paso TX was buried under 22.4
inches of snow, including a single storm record of 16.8 inches in 24 hours.
The snowfall total surpassed their previous record for an entire winter
season of 18.4 inches. Record cold was experienced the next three nights as
readings dipped into the single numbers. High winds ushering unseasonably
cold air into the southwestern U.S. gusted to 100 mph at Grapevine CA. (The
National Weather Summary) (Storm Data)
Low pressure off the Atlantic coast produced up to a foot of snow in
eastern Nassau County and western Suffolk County of southeastern New York
State. Mild weather prevailed across the western half of the country. Nine
cities reported record high temperatures for the date, including Goodland
KS with a reading of 74 degrees. (The National Weather Summary) (Storm
Strong northwesterly winds, ushering bitterly cold arctic air into the
central U.S., produced squalls with heavy snow in the Great Lakes Region.
Snowfall totals in Upper Michigan ranged up to 24 inches at Manistique.
Nine cities in Arkansas and Texas reported record low temperatures for the
date, including Calico Rock AR with a reading of 4 degrees above zero.
(Storm Data) (The National Weather Summary)

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