Weather Forecasting Contest for Minneapolis-St Paul, MN (KMSP)

Tomorrow

Forecast at a Glance from the National Weather Service

Labor
Day

Chance Thunderstorms Chance for Measurable Precipitation 40%
Chance
Tstms
Hi 76 °F
Tonight

Severe Thunderstorms Chance for Measurable Precipitation 70%
Severe
Tstms
Lo 55 °F
Tuesday

Chance Showers Chance for Measurable Precipitation 30%
Chance
Showers
Hi 64 °F
Tuesday
Night

Partly Cloudy
Partly
Cloudy
Lo 48 °F
Wednesday

Sunny
Sunny

Hi 69 °F
Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%
Slight Chc
Tstms
Lo 57 °F
Thursday

Chance Thunderstorms Chance for Measurable Precipitation 40%
Chance
Tstms
Hi 66 °F
Thursday
Night

Chance Thunderstorms
Chance
Tstms
Lo 61 °F
Friday

Chance Thunderstorms
Chance
Tstms
Hi 76 °F


Go to National Weather Service page
Detailed site information

Weather Forecasts for Tomorrow, Tuesday 7 September 2010

ForecasterTminTmaxPrecipComment
Highest-Rated Forecasters From All Divisions
NWS-MOS-GFS-06-DAY151610.05
NWS-MOS-NAM-12-DAY252640.05
NWS-MOS-GFS-00-DAY151620.05
NWS-MOS-GFS-18-DAY253630.05
NWS-MOS-GFS-12-DAY252650.05
NWS-MOS-NAM-00-DAY153610.05
NWS-MOS-GFS-06-DAY254670.05
CLIMATOLOGY54740.10From 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 Minneapolis-St Paul, MN (KMSP) Forecast

Weather Forecasts for Today, Monday 6 September 2010

ForecasterTminTmaxPrecipComment
OBSERVED62680Observed data through: 09:53 CDT.
Consensus
MEDIAN58730.58
CONSENSUS-158.172.80.55
Computer
NWS-MOS-GFS-18-DAY158730.20
NWS-MOS-GFS-00-DAY058730.17
NWS-MOS-NAM-00-DAY060740.42
NWS-MOS-NAM-12-DAY160740.74
NWS-MOS-GFS-12-DAY157720.80
NWS-MOS-GFS-06-DAY156710.42
NWS-MOS-GFS-00-DAY157720.80
NWS-MOS-NAM-12-DAY258740.74
NWS-MOS-GFS-18-DAY258710.85
NWS-MOS-GFS-12-DAY258740.26
NWS-MOS-NAM-00-DAY159730.74
NWS-MOS-GFS-06-DAY258720.37
Reference
CLIMATOLOGY54740.10From 1971-2000 U.S. Climate Normals
PERSISTENCE50730

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 September 2010

ForecasterTmin
(score)
Tmax
(score)
Precip
(score)
CommentDay
Score
Division
Points
OBSERVED50730Data FINAL. Scores COMPLETE.
Consensus
CONSENSUS-151.1 (1.1)74.6 (1.6)0 (0)2.8
MEDIAN51 (1)75 (2)0 (0)3
Computer
NWS-MOS-NAM-12-DAY250 (0)72 (1)0 (0)1
NWS-MOS-GFS-18-DAY150 (0)75 (2)0 (0)2
NWS-MOS-GFS-12-DAY150 (0)75 (2)0 (0)2
NWS-MOS-NAM-12-DAY153 (3)73 (0)0 (0)3
NWS-MOS-GFS-06-DAY149 (1)75 (2)0 (0)3
NWS-MOS-GFS-00-DAY151 (1)75 (2)0 (0)3
NWS-MOS-GFS-12-DAY251 (1)75 (2)0 (0)3
NWS-MOS-NAM-00-DAY151 (1)71 (2)0 (0)3
NWS-MOS-GFS-06-DAY251 (1)75 (2)0 (0)3
NWS-MOS-GFS-00-DAY052 (2)75 (2)0 (0)4
NWS-MOS-GFS-18-DAY251 (1)76 (3)0 (0)4
NWS-MOS-NAM-00-DAY054 (4)75 (2)0 (0)6
Reference
PERSISTENCE48 (2)69 (4)0 (0)6
CLIMATOLOGY55 (5)75 (2)0.11 (6.4)From 1971-2000 U.S. Climate Normals13.4

Daily Weather Map page

Results for Previous Days

Saturday 4 September 2010
Friday 3 September 2010
Thursday 2 September 2010
Wednesday 1 September 2010

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 Aug 2010 - Sat 4 Sep 2010

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

Leading Weather Forecasters for September 2010

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
1NWS-MOS-GFS-18-DAY125117.9
2MEDIAN25116.8
3NWS-MOS-GFS-00-DAY025110.4
4NWS-MOS-NAM-00-DAY025108.0
5NWS-MOS-NAM-12-DAY125105.4
6CONSENSUS-125104.4
7NWS-MOS-GFS-06-DAY125102.6
8NWS-MOS-GFS-12-DAY12598.0
9NWS-MOS-GFS-00-DAY12594.3
10NWS-MOS-NAM-12-DAY22591.7
11NWS-MOS-GFS-18-DAY22590.6
12NWS-MOS-GFS-12-DAY22585.7
13NWS-MOS-NAM-00-DAY12581.8
14NWS-MOS-GFS-06-DAY22571.9
15PERSISTENCE25-46.1
16CLIMATOLOGY25-141.5

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 Minneapolis-St. Paul, Minnesota (KMSP)

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Discussion Topics for week of 10/25 - 10/31

Answer the following about Minnesota:

Where is it located in the United States?

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