ZCZC ARBCLMDTW
CXUS53 KDTW 021835

CLIMATOLOGICAL SUMMARY FOR DETROIT - NOVEMBER 2002
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
130 PM EST MON DEC 2 2002

...COLDER THAN AVERAGE TREND SINCE MID OCTOBER HOLDS INTO NOVEMBER...
...BRIEF...STRONG WARM UP EARLY NOVEMBER ACCOMPANIED BY A RARE
   COMMODITY AROUND HERE LATELY...HEAVY RAIN...
...WINTER ARRIVES EARLY...SETTLING IN THE LATTER HALF OF NOVEMBER...

THE JET STREAM SHIFT TO A DOMINANT NORTHWESTERLY FLOW THAT COMMENCED 
MID OCTOBER....HELD SWAY FOR MUCH OF NOVEMBER ACROSS SOUTHEAST LOWER 
MICHIGAN. THIS WAS THE SECOND MONTH IN A ROW THAT THE AVERAGE
TEMPERATURE FELL BELOW NORMAL. INCREDIBLY...THERE HAVE NOT BEEN
TWO CONSECUTIVE MONTHS THAT AVERAGED BELOW NORMAL IN DETROIT SINCE
AUGUST/SEPTEMBER OF 1997. OF COURSE...THERE HAVE BEEN MONTHS THAT
THE AVERAGE TEMPERATURE FELL BELOW NORMAL...BUT AGAIN...TO HAVE TWO 
CONSECUTIVE MONTHS BELOW NORMAL HAD BEEN NON-EXISTENT UNTIL WAY BACK 
IN 1997. 

OVERALL...WINTER ARRIVED EARLIER THIS YEAR...EARLIER THAN SEEN THE 
PAST SEVERAL YEARS ACROSS SOUTHEAST LOWER MICHIGAN. WINTER-LIKE 
WEATHER PRETTY MUCH SETTLED OVER THE REGION DURING THE THIRD AND 
FOURTH WEEKS OF THE NOVEMBER. THE COLDER THAN NORMAL WEATHER OF THE PAST 
TWO MONTHS PARALLELED THE COLDER PERIODS FOUND WHILE RESEARCHING DATA 
FOR THE WINTER OUTLOOK (UNDER CONTRARY INDICATORS). AS MENTIONED IN 
THE OUTLOOK...THIS COLD PATTERN BEARS WATCHING AS WE MOVE INTO THE 
WINTER MONTHS FOR ANY CHANGE...OR IN FACT...LONGER TERM DOMINANCE 
(AS EXPLAINED IN THE OUTLOOK). IT SHOULD BE MENTIONED...HOWEVER...
THAT THE RESEARCH ALSO SUGGESTED THE MONTH OF DECEMBER HAD THE BEST 
CHANCE OF THE WINTER MONTHS TO AVERAGE ABOVE NORMAL.

COLD WEATHER OPENED NOVEMBER WITH A WEEK OF BELOW NORMAL TEMPERATURES. 
IN FACT...SNOW SHOWERS WERE SEEN AT THE MONTH'S OPEN ON THE FIRST. THIS 
WAS THE FIRST OFFICIAL SNOW OF THE SEASON OBSERVED FOR DETROIT AT METRO 
AIRPORT (THOUGH SNOW HAD BEEN OBSERVED IN OTHER METRO DETROIT LOCATIONS 
BACK IN OCTOBER).

THE MOST NOTABLE WEATHER EVENT IN NOVEMBER FOR THE AREA (AND ESPECIALLY 
SOUTH THROUGH THE OHIO/TENNESSEE VALLEYS) WAS THE STRONG TO SEVERE 
THUNDERSTORMS THAT BROKE OUT AHEAD OF AN INTENSIFYING LOW PRESSURE AND 
COLD FRONT ON THE 10TH. THIS STORM CENTER PUSHED UP WARMER AIR FROM THE 
SOUTH CAUSING A BRIEF BUT NOTABLE WARM SPELL THE 8TH - 11TH. TEMPERATURES
AVERAGED NEARLY 12 DEGREES ABOVE NORMAL AND THIS HELPED FUEL THE STORM
OUTBREAK. WHILE SOME STRONG THUNDERSTORMS MADE THEIR WAY INTO EXTREME 
SOUTHEAST LOWER MICHIGAN...ALL SEVERE ACTIVITY REMAINED SOUTH OF THE 
OHIO/MICHIGAN BORDER AS SEVERE THUNDERSTORMS AND TORNADOES RAKED OHIO 
AND POINTS SOUTH. WHILE A BIG BULLET WAS DODGED INDEED...THE STORMS 
THAT DID MAKE IT THIS FAR NORTH DUMPED VERY HEAVY RAIN AND CONTAINED 
FREQUENT VIVID LIGHTNING...MORE REPRESENTATIVE OF A SUMMER EVENT 
RATHER THAN NOVEMBER. OVER AN INCH AND A HALF /1.57/ OF RAIN WAS 
MEASURED AT DETROIT METRO AIRPORT...MUCH OF THAT FALLING IN JUST A 
FEW HOURS.

WHILE THERE WERE A FEW MILD DAYS DURING THE REMAINDER OF NOVEMBER...
FOR THE MOST PART...THE WEATHER REVERTED BACK TO THE COLDER...DOMINANT 
TREND SEEN EARLIER AS WINTER MADE IT'S PRESENCE KNOWN. CLIPPERS PUSHING 
SOUTHEAST OF CANADA FREQUENTLY DRAPED POLAR AIR OVER THE REGION... 
STIRRING UP LIGHT SNOW AND SNOW SHOWERS. ONE EXTRAORDINARY AND SOMEWHAT 
INFREQUENT (AS FAR AS AMOUNTS) LAKE EFFECT SNOW EVENT TOOK PLACE AS A 
COLD HIGH PRESSURE PUSHED SOUTH INTO THE UPPER MIDWEST AND LOW PRESSURE 
MOVED THROUGH THE UPPER OHIO VALLEY. THE PERSISTENT NORTH TO NORTHEAST 
WIND OFF OF LAKE HURON DUMPED SEVERAL INCHES OF SNOW DOWNWIND OF LAKE 
HURON ON SANILAC AND ST CLAIR COUNTIES LATE ON THE 26TH INTO THE EARLY 
HOURS OF THE 27TH. AN INCREDIBLE 17 INCHES OF SNOW WAS MEASURED ON THE 
NORTH SIDE OF PORT HURON IN THE END! 

THE MONTH CLOSED THE WAY IT BEGAN...WITH COLD AND LIGHT SNOW. 
THANKSGIVING'S WEATHER /27TH/ WAS MORE APPROPRIATE FOR CHRISTMAS 
AS HIGHS FLIRTED WITH FREEZING (THE NORMAL FOR CHRISTMAS) AS SNOW 
SHOWERS PASSED OVER THE REGION.
  
....................................................................
  
...TEMPERATURES...                  ...PRECIPITATION...
AVERAGE MAXIMUM........... 45.3     MONTHLY TOTAL ............ 2.72                       
AVERAGE MINIMUM .......... 33.1     DEPARTURE FROM NORMAL.....+ .06 
AVERAGE MONTHLY........... 39.2     GREATEST IN 24HRS/DATES... 1.57                      
DEPARTURE FROM NORMAL.....- 1.5                         ON THE 10TH                  
HIGHEST..........65 ON THE 10TH     2002 TOTAL................29.38
LOWEST...........19 ON THE 27TH     DEPARTURE FROM NORMAL.....-1.00                                                             
 
...HEATING DEGREE DAYS...           ...NUMBER OF DAYS WITH... 
MONTHLY TOTAL..............766      0.01 OR MORE PRECIPITATION.. 8       
MONTHLY DEPARTURE..........+24      0.10 OR MORE PRECIPITATION.. 5   
2002-2003 SEASON TOTAL....1285      0.50 OR MORE PRECIPITATION.. 2   
DEPARTURE FROM NORMAL......-16      1.00 OR MORE PRECIPITATION.. 1   
 
...COOLING DEGREE DAYS...           ...SNOWFALL...
MONTHLY TOTAL..........   0         MONTHLY TOTAL............... 1.6
MONTHLY DEPARTURE......   0         MONTHLY DEPARTURE...........-1.1
2002 SEASON............1061         2002-2003 SEASON TOTAL...... 1.6 
DEPARTURE FROM NORMAL..+325         DEPARTURE FROM AVERAGE......-1.4 
                                    (NEW 1971-2000 AVERAGE).....44.0
PEAK GUST - SOUTHWEST 39 MPH/29TH                                           

.....................................................................

NOVEMBER 2002 CLIMATOLOGICAL SUMMARY FOR: 
THE NATIONAL WEATHER SERVICE FORECAST OFFICE...WHITE LAKE MI.

...TEMPERATURE DATA...             ...PRECIPITATION DATA...
AVERAGE MAXIMUM....  43.4          MONTHLY TOTAL ........... 1.98        
AVERAGE MINIMUM....  28.9          GREATEST IN 24HRS........ 1.04     
MONTHLY AVERAGE....  36.1                                                                                                            
                                   2002 TOTAL SO FAR....... 23.02 

...HEATING DEGREE DAYS...          ...SNOWFALL DATA...
MONTHLY TOTAL............ 856      MONTHLY TOTAL............ 4.5       
2002-2003 SEASON TOTAL...1556      2002-2003 SEASON TOTAL... 4.5 

...COOLING DEGREE DAYS...
MONTHLY TOTAL...........  0  
2002 SEASON.............725   

DEEDLER

NNNNZCZC ARBCLMDTW
CXUS53 KDTW 021835

CLIMATOLOGICAL SUMMARY FOR DETROIT - NOVEMBER 2002
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
130 PM EST MON DEC 2 2002

...COLDER THAN AVERAGE TREND SINCE MID OCTOBER HOLDS INTO NOVEMBER...
...BRIEF...STRONG WARM UP EARLY NOVEMBER ACCOMPANIED BY A RARE
   COMMODITY AROUND HERE LATELY...HEAVY RAIN...
...WINTER ARRIVES EARLY...SETTLING IN THE LATTER HALF OF NOVEMBER...

THE JET STREAM SHIFT TO A DOMINANT NORTHWESTERLY FLOW THAT COMMENCED 
MID OCTOBER....HELD SWAY FOR MUCH OF NOVEMBER ACROSS SOUTHEAST LOWER 
MICHIGAN. THIS WAS THE SECOND MONTH IN A ROW THAT THE AVERAGE
TEMPERATURE FELL BELOW NORMAL. INCREDIBLY...THERE HAVE NOT BEEN
TWO CONSECUTIVE MONTHS THAT AVERAGED BELOW NORMAL IN DETROIT SINCE
AUGUST/SEPTEMBER OF 1997. OF COURSE...THERE HAVE BEEN MONTHS THAT
THE AVERAGE TEMPERATURE FELL BELOW NORMAL...BUT AGAIN...TO HAVE TWO 
CONSECUTIVE MONTHS BELOW NORMAL HAD BEEN NON-EXISTENT UNTIL WAY BACK 
IN 1997. 

OVERALL...WINTER ARRIVED EARLIER THIS YEAR...EARLIER THAN SEEN THE 
PAST SEVERAL YEARS ACROSS SOUTHEAST LOWER MICHIGAN. WINTER-LIKE 
WEATHER PRETTY MUCH SETTLED OVER THE REGION DURING THE THIRD AND 
FOURTH WEEKS OF THE NOVEMBER. THE COLDER THAN NORMAL WEATHER OF THE PAST 
TWO MONTHS PARALLELED THE COLDER PERIODS FOUND WHILE RESEARCHING DATA 
FOR THE WINTER OUTLOOK (UNDER CONTRARY INDICATORS). AS MENTIONED IN 
THE OUTLOOK...THIS COLD PATTERN BEARS WATCHING AS WE MOVE INTO THE 
WINTER MONTHS FOR ANY CHANGE...OR IN FACT...LONGER TERM DOMINANCE 
(AS EXPLAINED IN THE OUTLOOK). IT SHOULD BE MENTIONED...HOWEVER...
THAT THE RESEARCH ALSO SUGGESTED THE MONTH OF DECEMBER HAD THE BEST 
CHANCE OF THE WINTER MONTHS TO AVERAGE ABOVE NORMAL.

COLD WEATHER OPENED NOVEMBER WITH A WEEK OF BELOW NORMAL TEMPERATURES. 
IN FACT...SNOW SHOWERS WERE SEEN AT THE MONTH'S OPEN ON THE FIRST. THIS 
WAS THE FIRST OFFICIAL SNOW OF THE SEASON OBSERVED FOR DETROIT AT METRO 
AIRPORT (THOUGH SNOW HAD BEEN OBSERVED IN OTHER METRO DETROIT LOCATIONS 
BACK IN OCTOBER).

THE MOST NOTABLE WEATHER EVENT IN NOVEMBER FOR THE AREA (AND ESPECIALLY 
SOUTH THROUGH THE OHIO/TENNESSEE VALLEYS) WAS THE STRONG TO SEVERE 
THUNDERSTORMS THAT BROKE OUT AHEAD OF AN INTENSIFYING LOW PRESSURE AND 
COLD FRONT ON THE 10TH. THIS STORM CENTER PUSHED UP WARMER AIR FROM THE 
SOUTH CAUSING A BRIEF BUT NOTABLE WARM SPELL THE 8TH - 11TH. TEMPERATURES
AVERAGED NEARLY 12 DEGREES ABOVE NORMAL AND THIS HELPED FUEL THE STORM
OUTBREAK. WHILE SOME STRONG THUNDERSTORMS MADE THEIR WAY INTO EXTREME 
SOUTHEAST LOWER MICHIGAN...ALL SEVERE ACTIVITY REMAINED SOUTH OF THE 
OHIO/MICHIGAN BORDER AS SEVERE THUNDERSTORMS AND TORNADOES RAKED OHIO 
AND POINTS SOUTH. WHILE A BIG BULLET WAS DODGED INDEED...THE STORMS 
THAT DID MAKE IT THIS FAR NORTH DUMPED VERY HEAVY RAIN AND CONTAINED 
FREQUENT VIVID LIGHTNING...MORE REPRESENTATIVE OF A SUMMER EVENT 
RATHER THAN NOVEMBER. OVER AN INCH AND A HALF /1.57/ OF RAIN WAS 
MEASURED AT DETROIT METRO AIRPORT...MUCH OF THAT FALLING IN JUST A 
FEW HOURS.

WHILE THERE WERE A FEW MILD DAYS DURING THE REMAINDER OF NOVEMBER...
FOR THE MOST PART...THE WEATHER REVERTED BACK TO THE COLDER...DOMINANT 
TREND SEEN EARLIER AS WINTER MADE IT'S PRESENCE KNOWN. CLIPPERS PUSHING 
SOUTHEAST OF CANADA FREQUENTLY DRAPED POLAR AIR OVER THE REGION... 
STIRRING UP LIGHT SNOW AND SNOW SHOWERS. ONE EXTRAORDINARY AND SOMEWHAT 
INFREQUENT (AS FAR AS AMOUNTS) LAKE EFFECT SNOW EVENT TOOK PLACE AS A 
COLD HIGH PRESSURE PUSHED SOUTH INTO THE UPPER MIDWEST AND LOW PRESSURE 
MOVED THROUGH THE UPPER OHIO VALLEY. THE PERSISTENT NORTH TO NORTHEAST 
WIND OFF OF LAKE HURON DUMPED SEVERAL INCHES OF SNOW DOWNWIND OF LAKE 
HURON ON SANILAC AND ST CLAIR COUNTIES LATE ON THE 26TH INTO THE EARLY 
HOURS OF THE 27TH. AN INCREDIBLE 17 INCHES OF SNOW WAS MEASURED ON THE 
NORTH SIDE OF PORT HURON IN THE END! 

THE MONTH CLOSED THE WAY IT BEGAN...WITH COLD AND LIGHT SNOW. 
THANKSGIVING'S WEATHER /27TH/ WAS MORE APPROPRIATE FOR CHRISTMAS 
AS HIGHS FLIRTED WITH FREEZING (THE NORMAL FOR CHRISTMAS) AS SNOW 
SHOWERS PASSED OVER THE REGION.
  
....................................................................
  
...TEMPERATURES...                  ...PRECIPITATION...
AVERAGE MAXIMUM........... 45.3     MONTHLY TOTAL ............ 2.72                       
AVERAGE MINIMUM .......... 33.1     DEPARTURE FROM NORMAL.....+ .06 
AVERAGE MONTHLY........... 39.2     GREATEST IN 24HRS/DATES... 1.57                      
DEPARTURE FROM NORMAL.....- 1.5                         ON THE 10TH                  
HIGHEST..........65 ON THE 10TH     2002 TOTAL................29.38
LOWEST...........19 ON THE 27TH     DEPARTURE FROM NORMAL.....-1.00                                                             
 
...HEATING DEGREE DAYS...           ...NUMBER OF DAYS WITH... 
MONTHLY TOTAL..............766      0.01 OR MORE PRECIPITATION.. 8       
MONTHLY DEPARTURE..........+24      0.10 OR MORE PRECIPITATION.. 5   
2002-2003 SEASON TOTAL....1285      0.50 OR MORE PRECIPITATION.. 2   
DEPARTURE FROM NORMAL......-16      1.00 OR MORE PRECIPITATION.. 1   
 
...COOLING DEGREE DAYS...           ...SNOWFALL...
MONTHLY TOTAL..........   0         MONTHLY TOTAL............... 1.6
MONTHLY DEPARTURE......   0         MONTHLY DEPARTURE...........-1.1
2002 SEASON............1061         2002-2003 SEASON TOTAL...... 1.6 
DEPARTURE FROM NORMAL..+325         DEPARTURE FROM AVERAGE......-1.4 
                                    (NEW 1971-2000 AVERAGE).....44.0
PEAK GUST - SOUTHWEST 39 MPH/29TH                                           

.....................................................................

NOVEMBER 2002 CLIMATOLOGICAL SUMMARY FOR: 
THE NATIONAL WEATHER SERVICE FORECAST OFFICE...WHITE LAKE MI.

...TEMPERATURE DATA...             ...PRECIPITATION DATA...
AVERAGE MAXIMUM....  43.4          MONTHLY TOTAL ........... 1.98        
AVERAGE MINIMUM....  28.9          GREATEST IN 24HRS........ 1.04     
MONTHLY AVERAGE....  36.1                                                                                                            
                                   2002 TOTAL SO FAR....... 23.02 

...HEATING DEGREE DAYS...          ...SNOWFALL DATA...
MONTHLY TOTAL............ 856      MONTHLY TOTAL............ 4.5       
2002-2003 SEASON TOTAL...1556      2002-2003 SEASON TOTAL... 4.5 

...COOLING DEGREE DAYS...
MONTHLY TOTAL...........  0  
2002 SEASON.............725   

DEEDLER

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