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Plymouth County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
507 PM CDT Sun Jul 22 2018

Today was nearly a carbon copy of the weather seen across the state on
Saturday. Northwesterly winds kept temperatures 5 to 10 degrees below
normal for late July, with highs generally in the mid 70s to low 80s.
Mostly cloudy conditions held in through the afternoon over the
eastern half of the state, but abundant sunshine was seen for the
western half. That will change tonight as clouds move in from the west
overnight, with temperatures dropping into the 60s. A few
thunderstorms are also possible near the Missouri River, along with
patchy fog in central Iowa.

Any fog will be quick to dissipate Monday morning. Chances for a few
thunderstorms will stretch into central Iowa as a weak front slides
through the state. The threat for severe weather will be low, and a
widespread soaking rainfall is not likely. Temperatures will warm 
back closer to normal by Wednesday as highs return in the mid to upper
80s over the southern half of the state, but another passing front 
will bring additional chances for a few showers and storms. A 
seasonably cool air mass will move in behind the front, which will 
keep below normal temperatures in the forecast through the end of the
week. Chances for isolated showers and storms hang around, but most 
areas will likely remain dry. 

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

Precision Agriculture Weather Forecast For PLYMOUTH County


For Your Farm PointAgCast...Click here.

Regional Hourly Observations For PLYMOUTH County
Issued at 900 PM CDT SUN JUL 22 2018

   NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARROLL *      CLEAR     72  66  83 NE5       30.01S                  
CHEROKEE *     CLEAR     72  66  80 CALM      30.04R                  
DENISON *      CLEAR     73  64  73 NE3       30.04R                  
LE MARS *      PTCLDY    73  68  83 CALM      30.02F                  
ORANGE CITY *  CLEAR     77  66  69 CALM      30.04S                  
SHELDON *      CLEAR     73  70  88 CALM      30.03S                  
SIOUX CITY     CLEAR     77  65  66 E6        30.02S                  
SPENCER        CLEAR     72  65  78 E5        30.04R                  
STORM LAKE *   CLEAR     70  64  83 CALM      30.04R                  

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 900pm CDT, Sunday July 22, 2018

Across Iowa...temperatures are near 77 degrees west, near 75 degrees central, and near 68 degrees east. Current sky conditions are clear west, partly cloudy central, and fair east. In the west, relative humidity is near 66%, and the dew point is near 65 degrees. In the central part of the state, relative humidity is near 68%, and the dew point is near 64 degrees. In the east, relative humidity is near 90%, and the dew point is near 65 degrees. The livestock heat stress category is no stress west, no stress central, and no stress east. Winds are from the east at 6 mph west, where conditions are favorable for spraying. Winds are from the east at 6 mph central, where conditions are favorable for spraying. Winds are from the north at 6 mph east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 77 degrees at Sioux City. The lowest temperature is 68 degrees at Davenport and Clinton.


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 PLYMOUTH County,IA

326 PM CDT Sun Jul 22 2018

 DAY ONE  This Afternoon and Tonight

Thunderstorms are possible overnight into early Monday morning, 
but are not expected to be severe.

 DAYS TWO THROUGH SEVEN  Monday through Saturday

No hazardous weather is expected at this time.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For PLYMOUTH County, IA
912 PM CDT Sun Jul 22 2018

REST OF TONIGHT
Partly cloudy in the late evening then becoming mostly cloudy. A 20 percent chance of thunderstorms after midnight. Lows around 65. East winds around 5 mph becoming southeast after midnight.

MONDAY
Mostly cloudy with a 20 percent chance of thunderstorms in the morning, then sunny in the afternoon. Highs around 82. Northwest winds 5 to 10 mph becoming north 10 to 15 mph in the afternoon.

MONDAY NIGHT
Mostly clear. Lows around 58. North winds 5 to 10 mph.

TUESDAY
Sunny. Highs around 82. North winds 5 to 10 mph.

TUESDAY NIGHT
Mostly clear. Lows around 62. East winds around 5 mph becoming southeast after midnight.

WEDNESDAY
Partly cloudy with a 30 percent chance of thunderstorms. Highs around 82.

WEDNESDAY NIGHT
Partly cloudy. Lows around 58.

THURSDAY
Partly cloudy. Highs around 77.

THURSDAY NIGHT
Mostly clear. Lows around 57.

FRIDAY
Partly cloudy. A 30 percent chance of thunderstorms in the afternoon. Highs around 77.

FRIDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a 40 percent chance of thunderstorms after midnight. Lows around 59.

SATURDAY
Partly sunny with a 40 percent chance of thunderstorms. Highs around 77.

SATURDAY NIGHT
Mostly cloudy with a 30 percent chance of thunderstorms. Lows around 60.

SUNDAY
Partly cloudy. Highs around 80.

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 
                JUL 28-AUG 1 JUL 30-AUG 5    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above     Normal                      
 Precipitation:     Normal        Below     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

Sunday July 22, 2018 the 203th Day of Year

---------------------------------------------------
SUN
Declination 20.070000
Distance 0.999716 AU
Rise 06:58 EDT Set 21:42 EDT
Transit Meridian 14:20 EDT
Civil Twilight Begins 06:27 EDT Ends 22:13 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

////////////////////////////
JULY 22ND...HISTORIC WEATHER EVENTS
...1901...
Richmond, Kentucky's hottest temperature on record: 108 degrees. 
(NWS Louisville)
...1918...
A single bolt of lightning struck 504 sheep dead in their tracks at the
Wasatch National Forest in Utah. Sheep often herd together in storms, and
as a result the shock from the lightning bolt was passed from one animal to
another. (David Ludlum)
...1986...
Hurricane Estelle passed 120 miles south of the Hawaiian Islands creating a
ten to twenty foot surf. The large swells resulted from a combination of
high tides, a full moon, and 50 mph winds. The hurricane also deluged Oahu
Island with as much as 6.86 inches of rain on the 24th and 25th of the
month. (Storm Data)
...1987...
Barrow AK receives 1.38 inches in 24 hours on the 21st and 22nd, an
all-time record for that location. The average annual precipitation for
Barrow is just 4.75 inches. Thunderstorms in Montana produced 4 to 6 inches
of rain in Glacier County causing extensive flooding along Divide Creek.
Missoula MT received 1.71 inches of rain in 24 hours, a record for the
month of July. (The National Weather Summary) (The Weather Channel)
...1988...
Six cities in the south central U.S. reported record low temperatures for
the date, including Pueblo CO with a reading of 48 degrees. Thunderstorms
over the Atlantic Coast Region drenched Wilmington NC with 6.49 inches of
rain in about eight hours. (The National Weather Summary)
...1989...
Showers and thunderstorms prevailed across the southeastern third of the
country. Afternoon thunderstorms in Florida produced wind gusts to 86 mph
at Zephyrhills, and gusts to 92 mph at Carrollwood and Lutz. Thunderstorm
winds gusting to 69 mph at Crystal Lake damaged nineteen mobile homes.
(Storm Data) (The National Weather Summary)
...1995...
A Louisville man was slightly injured when lightning struck a utility pole 
and traveled through the phone lines into his living room. Lightning also 
damaged a house in Bardstown (Nelson County). (NWS Louisville)
========================================================================
Lexington Area  (ThreadEx Station)
Daily Almanac
Date: Jul 22, 2011

Daily Values         Observed    Normal       Record/Year    Prev Year
Max Temperature           -         86        102 in 1901          89
Min Temperature           -         67         50 in 1947          71
Avg Temperature           -         77       88.5 in 1983        80.0
Precipitation             -       0.15       2.35 in 1892        0.01
New Snowfall              -        0.0        0.0 in 2010+        0.0
Snow Depth                -          -          0 in 2010+          0
HDD (base 65)             -          0          4 in 1947           0
CDD (base 65)             -         12         24 in 1983          15

Month-To-Date        Observed    Normal       Record/Year    Prev Year
Avg Max Temperature    88.0       85.9       95.6 in 1936        87.6
Avg Min Temperature    68.3       66.1       59.8 in 1947        67.5
Avg Temperature        78.2       75.9       82.1 in 1936        77.5
Total Precipitation    3.88       3.49       9.56 in 1896        5.45
Total Snowfall          0.0        0.0        0.0 in 2011         0.0
Avg Snow Depth            0          -          0 in 2010           0
Total HDD                 0          1         10 in 1972           0
Total CDD               283        244        383 in 1936         282

+ indicates record also occurred in previous years (last occurrence listed).

This station's record may include data from more than one, possibly incompatible, 
locations. It reflects the longest available record for the Lexington Area.
Normals used in this product are from LEXINGTON BLUEGRASS AP

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