Current Month's Precipitation

The precipitation data contained in the table below are calculated from available U.S. and Canadian observations at the time of posting. As more observations become available during the course of the day, these data may change.  All precipitation data below are preliminary in nature and may contain missing observations.



	
                                                PRELIMINARY **

                                    GREAT LAKES DAILY PRECIPITATION

                                                (INCHES)

                                            NOVEMBER  2009




          DAY      SUPERIOR             MICH-HUR               ERIE               ONTARIO
          ---      --------             --------               ----               -------
           1      0.08  0.08           0.01  0.01           0.00  0.00           0.00  0.00
           2      0.07  0.15           0.10  0.11           0.00  0.00           0.02  0.02
           3      0.02  0.17           0.02  0.13           0.01  0.01           0.02  0.04
           4      0.08  0.25           0.02  0.15           0.03  0.04           0.01  0.05
           5      0.00  0.25           0.07  0.22           0.05  0.09           0.14  0.19
           6      0.00  0.25           0.00  0.22           0.00  0.09           0.02  0.21
           7      0.00  0.25           0.00  0.22           0.00  0.09           0.00  0.21
           8      0.02  0.27           0.00  0.22           0.00  0.09           0.00  0.21
           9      0.05  0.32           0.00  0.22           0.00  0.09           0.00  0.21
          10      0.00  0.32           0.00  0.22           0.01  0.10           0.00  0.21
          11      0.02  0.34           0.00  0.22           0.00  0.10           0.00  0.21
          12      0.00  0.34           0.00  0.22           0.00  0.10           0.00  0.21
          13      0.22  0.56           0.00  0.22           0.00  0.10           0.00  0.21
          14      0.28  0.84           0.00  0.22           0.00  0.10           0.00  0.21
          15      0.02  0.86           0.01  0.23           0.00  0.10           0.00  0.21
          16      0.00  0.86           0.00  0.23           0.03  0.13           0.00  0.21
          17      0.00  0.86           0.00  0.23           0.00  0.13           0.00  0.21
          18      0.00  0.86           0.03  0.26           0.13  0.26           0.00  0.21
          19      0.12  0.98           0.13  0.39           0.22  0.48           0.76  0.97

          DAILY & ACC - DET. DIST. COE., 24 HR PRECIP @ 12:00 AM EST


          -1.00 INDICATES DATA FOR ALL STATIONS MISSING FOR THAT DAY.


         ---------------------------------------- SUMMARY ---------------------------------------
                                                                                   GREAT
                             SUPERIOR     MICH-HUR       ERIE        ONTARIO       LAKES
                             --------     --------     --------     --------     --------
                MONTH TO DATE (19 DAYS)
                -----------------------
                  AVG           1.58         1.76         1.80         2.01         1.74
                 ACCUM          0.98         0.39         0.48         0.97         0.63
                % OF AVG        62.%         22.%         27.%         48.%         36.%

                MONTH FOR PERIOD-OF-RECORD
                --------------------------
                  AVG           2.49         2.78         2.85         3.17         2.75
                  MAX           4.69         5.00         7.56         6.61         5.35
                  MIN           0.43         0.75         0.39         0.59         0.71
          **************************************************************
          UPDATE: Provisional Monthly Precip. for OCTOBER 2009 in inches
                (based on monthly total station precipitation)
 
                                     OCTOBER         OCTOBER 
                                      2009      Average(1900-2006)
                                     ------      ----------------
                      Superior        3.60            2.83
                      Michigan        4.81            2.86
                      Huron           4.81            2.86	
                      Erie            3.62            2.77
                      Ontario         3.51            3.09
 
          **************************************************************
          |                                                            |
          |              GREAT LAKES PRECIPITATION OUTLOOK             |
          |                           NOVEMBER	                       |          	
	  |	             ---------------------------               |
          |                   SUP -   NEAR AVERAGE    	               |
          |                   M-H -   NEAR AVERAGE                     |	
          |                   ERI -   NEAR AVERAGE   	     	       | 
          |                   ONT -   NEAR AVERAGE                     |
          |                                                            |
          |          INTERPRETED USING NATIONAL WEATHER SERVICE        |
          |               LONG AND MEDIUM RANGE OUTLOOKS               |
          **************************************************************
 

For Long Range Precipitation Outlooks
Visit the
National Weather Service Climate Prediction Center 


Last updated on: November 20, 2009