Weather Forecasting Contest for Moline, IL (KMLI)

Tomorrow

Forecast at a Glance from the National Weather Service

This
Afternoon

Cloudy
Cloudy

Hi 37 °F
Tonight

Increasing Clouds
Increasing
Clouds
Lo 29 °F
Tuesday

Chance Snow Chance for Measurable Precipitation 20%
Chance
Snow
Hi 35 °F
Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%
Slight Chc
Snow
Lo 22 °F
Wednesday

Partly Sunny
Partly
Sunny
Hi 30 °F
Wednesday
Night

Mostly Clear
Mostly
Clear
Lo 21 °F
Thursday

Mostly Sunny
Mostly
Sunny
Hi 37 °F
Thursday
Night

Partly Cloudy
Partly
Cloudy
Lo 20 °F
Friday

Mostly Sunny
Mostly
Sunny
Hi 27 °F

Go to National Weather Service page
Detailed site information

Weather Forecasts for Tuesday 7 February 2012

Forecaster Tmin(F) Tmax(F) Precip(in) Comment
NWS-MOS-GFS-12-DAY1 25 36 0
NWS-MOS-GFS-12-DAY2 26 36 0
NWS-MOS-GFS-18-DAY2 23 34 0
NWS-MOS-GFS-00-DAY1 25 36 0
NWS-MOS-GFS-06-DAY1 25 36 0
NWS-MOS-NAM-12-DAY1 23 35 0.05
NWS-MOS-GFS-06-DAY2 26 36 0
NWS-MOS-NAM-00-DAY1 24 36 0.07
NWS-MOS-NAM-12-DAY2 26 36 0
CLIMATOLOGY 16 33 0.05 From 1971-2000 U.S. Climate Normals

A Sample Forecasting Procedure


Weather forecasters look at many types of data to help them build a forecast, and each forecaster will have their own approach. Here is a simple procedure to get you started.
  1. First look at current weather conditions:

    Surface Analysis

    Visible
    Satellite

    Infrared
    Satellite

    Radar

    A good stating point for formulating your forecast will be determining what is happening around the country today. Where are the major weather systems? Where has it been hot? Where has it been raining? Is any of this weather moving towards my forecasting site over the next forecasting period?
  2. Look at the National Weather Service hourly weather forecast graph and the forecast of fronts and precipitation:

    Graph

    Fronts/Precip
    Remember that the forecast day goes from about midnight to midnight local time. We forecast for a daily High and Low. The Low is typically recorded in the early morning hours of the day, while the high is generally reached in the afternoon. But check the hourly graph for the possibility that the Low and High might come at different times. For example, if a strong cold front comes through early in the day, the High might be in the early morning hours and the temperature might fall for the rest of the day, and the Low would be at the very end of the day.
  3. Look at National Weather Service precipitation forecasts:

    Precip
    The times for these plots are in UTC (or GMT); a contest day goes from 0600 UTC (about midnight in most of the U.S.) to 0600 UTC the next day. Click on the plots corresponding to those hours. Your precip forecast is for the whole day, so you would add the amounts from each 6- or 12-hr plot to calculate what the NWS is predicting for the entire contest day. Remember that you need to predict the amount in inches, and most locations receive amounts over one inch only a few times each year. On most days the precip forecast should be zero, and for many others it will be a few hundredths of an inch (e.g. 0.15 inches).
  4. Check and submit your forecast:
    Once you have determined your high, low, and precipitation amount, check it with the computer model forecasts shown in the table above. Are you close? Generally it’s a good idea to be fairly close to these computer forecasts, because they're typically quite good. Once you've entered your forecast in the form above, click the Submit button.

Legend

This Month's Division Leaders
 M month division wins in last year
 W week division wins in last month
 D day division wins in last week
Elementary School Divisions
Middle School Divisions
High School Divisions
College Divisions
Teacher Division
Open Division
Computer Division
Consensus Division
Reference Division

Today


Click for Moline, IL (KMLI) Forecast

Weather Forecasts for Monday 6 Februrary 2012

ForecasterTminTmaxPrecipComment
OBSERVED27310Observed data through: 10:52 CST.
Consensus
MEDIAN24.543.50
CONSENSUS-124.042.90
Computer
NWS-MOS-GFS-00-DAY026420
NWS-MOS-GFS-18-DAY125440
NWS-MOS-GFS-12-DAY125440
NWS-MOS-NAM-00-DAY025400
NWS-MOS-GFS-12-DAY222430
NWS-MOS-GFS-18-DAY221420
NWS-MOS-GFS-00-DAY125450
NWS-MOS-GFS-06-DAY122440
NWS-MOS-NAM-12-DAY124420
NWS-MOS-GFS-06-DAY222430
NWS-MOS-NAM-00-DAY124440
NWS-MOS-NAM-12-DAY225440
Reference
CLIMATOLOGY15330.05From 1971-2000 U.S. Climate Normals
PERSISTENCE26440

Legend

This Month's Division Leaders
 M month division wins in last year
 W week division wins in last month
 D day division wins in last week
Elementary School Divisions
Middle School Divisions
High School Divisions
College Divisions
Teacher Division
Open Division
Computer Division
Consensus Division
Reference Division

Yesterday

Weather Forecasts for Saturday 5 Februrary 2012

ForecasterTmin
(score)
Tmax
(score)
Precip
(score)
CommentDay
Score
Division
Points
OBSERVED26440Data FINAL. Scores COMPLETE.
Consensus
MEDIAN25 (1)39.5 (4.5)0 (0)5.5
CONSENSUS-124.9 (1.1)39.3 (4.7)0 (0)5.9
Computer
NWS-MOS-NAM-00-DAY026 (0)41 (3)0 (0)3
NWS-MOS-NAM-12-DAY125 (1)41 (3)0 (0)4
NWS-MOS-GFS-06-DAY227 (1)41 (3)0 (0)4
NWS-MOS-GFS-00-DAY028 (2)41 (3)0 (0)5
NWS-MOS-NAM-00-DAY125 (1)40 (4)0 (0)5
NWS-MOS-NAM-12-DAY227 (1)40 (4)0 (0)5
NWS-MOS-GFS-12-DAY225 (1)39 (5)0 (0)6
NWS-MOS-GFS-18-DAY225 (1)38 (6)0 (0)7
NWS-MOS-GFS-00-DAY124 (2)39 (5)0 (0)7
NWS-MOS-GFS-18-DAY124 (2)38 (6)0 (0)8
NWS-MOS-GFS-12-DAY124 (2)38 (6)0 (0)8
NWS-MOS-GFS-06-DAY122 (4)38 (6)0 (0)10
Reference
PERSISTENCE34 (8)40 (4)0.11 (6.4)18.4
CLIMATOLOGY15 (11)32 (12)0.05 (4.8)From 1971-2000 U.S. Climate Normals27.8

Daily Weather Map page

Results for Previous Days

Saturday 4 February 2012
Friday 3 February 2012
Thursday 2 February 2012
Wednesday 1 February 2012

Legend

This Month's Division Leaders
 M month division wins in last year
 W week division wins in last month
 D day division wins in last week
Elementary School Divisions
Middle School Divisions
High School Divisions
College Divisions
Teacher Division
Open Division
Computer Division
Consensus Division
Reference Division

Standings

Leading Weather Forecasters for Week of Sun 29 Jan 2012 - Sat 4 Feb 2012

RankForecaster# ForecastsTmin
Score
Tmax
Score
Precip
Score
Week
Score
Division
Points

Leading Weather Forecasters for Februrary 2012

RankForecaster# ForecastsTmin
Score
Tmax
Score
Precip
Score
Month
Score
Division
Points

Legend

This Month's Division Leaders
 M month division wins in last year
 W week division wins in last month
 D day division wins in last week
Elementary School Divisions
Middle School Divisions
High School Divisions
College Divisions
Teacher Division
Open Division
Computer Division
Consensus Division
Reference Division

Top Forecasters

Highest-Rated Forecasters, All Divisions

Higher numbers are better, minimum of 5 forecasts
RankForecaster# ForecastsForecaster Rating
1PERSISTENCE2532.3
2CLIMATOLOGY2513.1

Legend

This Month's Division Leaders
 M month division wins in last year
 W week division wins in last month
 D day division wins in last week
Elementary School Divisions
Middle School Divisions
High School Divisions
College Divisions
Teacher Division
Open Division
Computer Division
Consensus Division
Reference Division

Weather for Moline, Illinois (KMLI)

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