000
CXUS53 KDTX 270619 CCA
CLMFNT

CLIMATE REPORT...CORRECTED MONTHLY ALL-TIME RECORD INFORMATION
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
842 AM EDT MON AUG 6 2012

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

...THE FLINT MI CLIMATE SUMMARY FOR THE MONTH OF JULY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1921 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             108   07/13/1936
 LOW               40   07/02/2001
                        07/01/1965
HIGHEST           101   07/17        MM      MM
LOWEST             50   07/25        MM      MM
AVG. MAXIMUM     89.2              81.9     7.3
AVG. MINIMUM     63.1              59.2     3.9
MEAN             76.1              70.5     5.6
DAYS MAX >= 90     14               2.8    11.2
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.35   1992
 MINIMUM         0.73   1978
TOTALS           3.55              3.32    0.23
DAILY AVG.       0.11              0.11    0.00
DAYS >= .01         9               9.5    -0.5
DAYS >= .10         8               5.8     2.2
DAYS >= .50         3               2.5     0.5
DAYS >= 1.00        1               0.9     0.1
GREATEST
 24 HR. TOTAL    1.08   07/26 TO 07/26
                        07/25 TO 07/26
                        07/26 TO 07/26
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0   0
                        0
                        0
TOTALS            0.0               0.0     0.0
 LIQUID EQUIV    0.00              0.00    0.00
SINCE 7/1         0.0               0.0     0.0
 LIQUID 7/1      0.00
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   07/31 TO 07/31
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL       0                15     -15
 SINCE 7/1          0                15     -15
COOLING TOTAL     354               187     167
 SINCE 1/1        624               331     293

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    47/290    DATE  07/05
HIGHEST GUST SPEED/DIRECTION    63/290    DATE  07/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              7     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       7
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.


CLIMATE REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
842 AM EDT MON AUG 6 2012

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

...THE  TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF JULY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1898 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             111   07/13/1936
 LOW               39   07/02/2001
HIGHEST           100   07/17        MM      MM
LOWEST             57   07/11        MM      MM
AVG. MAXIMUM     87.3              81.8     5.5
AVG. MINIMUM     65.5              60.2     5.3
MEAN             76.4              71.0     5.4
DAYS MAX >= 90     13               3.0    10.0
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.97   1902
 MINIMUM         0.38   1930
TOTALS           4.45              2.58    1.87
DAILY AVG.       0.14              0.08    0.06
DAYS >= .01        10               9.1     0.9
DAYS >= .10         6               5.0     1.0
DAYS >= .50         5               1.7     3.3
DAYS >= 1.00        0               0.6    -0.6
GREATEST
 24 HR. TOTAL    1.58   07/25 TO 07/26
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0   0
                        0
                        0
TOTALS            0.0               0.0     0.0
 LIQUID EQUIV    0.00              0.00    0.00
SINCE 7/1         0.0               0.0     0.0
 LIQUID 7/1      0.00
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0   07/31 TO 07/31
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL       0                13     -13
 SINCE 7/1          0                13     -13
COOLING TOTAL     359               198     161
 SINCE 1/1        638               358     280

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
HIGHEST WIND SPEED/DIRECTION    41/320    DATE  07/25
HIGHEST GUST SPEED/DIRECTION    55/330    DATE  07/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       7
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

=====================================================================
...JULY BRINGS SEVERE THUNDERSTORMS, RECORD HEAT, SEVERE DROUGHT...

THE WARMEST MONTH ON RECORD NATIONALLY WAS THE 6TH WARMEST EVER
RECORDED IN FLINT AND THE 3RD WARMEST IN SAGINAW. THE AVERAGE
TEMPERATURES OF 76.1 AND 76.4 IN FLINT AND SAGINAW RESPECTIVELY FELL
COMFORTABLY SHORT OF JULY 1921, THE HOTTEST MONTH ON RECORD FOR BOTH
LOCATIONS. THE HEAT ALSO PROLONGED THE STREAK OF WARMER-THAN-NORMAL
MONTHS FOR FLINT TO 16, DATING BACK TO APRIL 2011. IN SIMILAR
FASHION TO LAST SUMMER, EXTREME HEAT QUICKLY BUILT ACROSS THE
SOUTHERN PLAINS AND MIDWEST EARLY IN THE WARM SEASON. HOWEVER, VERY
DRY CONDITIONS ALLOWED THE HEAT TO EXPAND NORTHWARD MUCH MORE
AGGRESSIVELY THAN IN THE YEAR PRIOR. THE RESULT WAS PROLONGED
NEAR-RECORD OR RECORD HEAT ACROSS ALL OF SOUTHEAST MICHIGAN THAT
LASTED NOT ONLY THROUGH JUNE, BUT JULY AS WELL. BY THE END OF THE
MONTH, RECORD HEAT AND DRY AIR HAD RESULTED WIDESPREAD SEVERE
DROUGHT CONDITIONS (D2 ON THE US DROUGHT MONITOR SCALE) ACROSS
SOUTHEAST MICHIGAN. BECAUSE THUNDERSTORMS ARE RELATIVELY INEFFICIENT
AT ALLEVIATING DROUGHT CONDITIONS, THE MULTIPLE EPISODES OF SEVERE
WEATHER THAT OCCURRED DID LITTLE TO EASE DROUGHT CONCERNS.

THE EXTREME HEAT RESULTED IN THE HIGH TEMPERATURE IN FLINT REACHING
90 DEGREES OR HIGHER ON 14 OCCASIONS IN JULY AND 22 TOTAL FOR THE
YEAR (TO DATE), ALREADY NEARLY DOUBLE THE ANNUAL AVERAGE OF 12.
SIMILARLY, THE 90 DEGREE THRESHOLD WAS EXCEEDED 13 TIMES IN SAGINAW,
19 FOR THE YEAR, ALSO WELL IN EXCESS OF THE ANNUAL AVERAGE OF 12. IN
ADDITION, THE 100-DEGREE THRESHOLD WAS TOUCHED TWICE IN FLINT (JULY
4TH AND 17TH) AND ONCE IN SAGINAW (JULY 17TH). THE TWO 100+ DEGREE
DAYS WERE THE MOST IN FLINT SINCE THE RECORD WARM DROUGHT YEAR OF
1988, AND THE SINGLE 100 DEGREE DAY IN SAGINAW WAS ITS FIRST SINCE
REACHING THE THRESHOLD TWICE IN 1995. THE RECORD WARM START TO THE
YEAR HAS ALSO BEEN PROLONGED THROUGH JULY. THE AVERAGE TEMPERATURE
OF 52.4 DEGREES (FLINT) AND 51.9 DEGREES (SAGINAW) FOR THE JANUARY
1ST TO JULY 31ST PERIOD BOTH EXCEED THE PREVIOUS RECORDS BY HEALTHY
MARGINS (+0.9 WARMER THAN 1921 IN FLINT AND +1.3 WARMER THAN 1998 IN
SAGINAW).

IN ADDITION TO RECORD HEAT AND SEVERE DROUGHT...SEVERE WEATHER
BECAME ACTIVE FOR THE FIRST TIME THIS SEASON. NUMEROUS SEVERE
WEATHER EPISODES OCCURRED IN JULY, THE MOST NOTABLE OF WHICH WAS IN
THE VERY EARLY MORNING HOURS OF JULY 5TH. WIDESPREAD SEVERE WINDS
CAUSED EXTENSIVE DAMAGE ACROSS MOST OF SOUTHEAST MICHIGAN AS AN
ORGANIZED THUNDERSTORM COMPLEX SURGED FROM NW TO SE ACROSS THE THE
FORECAST AREA. IN ADDITION TO WIDESPREAD WIND DAMAGE, WELL OVER
100,000 HOMES LOST POWER AMIDST CONTINUED RECORD HIGH TEMPERATURES
NEAR 100 DEGREES. A SECOND ORGANIZED OUTBREAK OF SEVERE
THUNDERSTORMS CAUSED ADDITIONAL WIDESPREAD WIND DAMAGE AND POWER
OUTAGES NORTH OF THE I-69 CORRIDOR ON JULY 25TH. ALTHOUGH THE
THUNDERSTORMS HELPED ALSO HELPED TO BOOST ALL CLIMATE SITES TO ABOVE
NORMAL RAINFALL TOTALS, HIGH RAIN RATES ASSOCIATED WITH
THUNDERSTORMS ARE TYPICALLY INEFFECTIVE AT ALLEVIATING DROUGHT
CONDITIONS. THUS, DETROIT, FLINT, AND SAGINAW ROUNDED OUT JULY 2012
WITH RATHER MISLEADING TOTAL RAINFALL FIGURES OF 109%, 107%, AND
172% OF NORMAL RESPECTIVELY.

THE AVERAGE HIGH TEMPERATURE FOR THE FLINT AREA WAS 89.2 (5TH
WARMEST ON RECORD), AND +7.3 DEGREES ABOVE THE NORMAL VALUE OF 81.9.
THE AVERAGE HIGH IN SAGINAW WAS 87.3 (10TH WARMEST ON RECORD), +5.5
DEGREES ABOVE THE 81.8 DEGREE NORMAL. FLINT`S AVERAGE LOW FOR THE
MONTH WAS 63.1 (12TH WARMEST ON RECORD), AND +3.9 ABOVE THE 59.2
DEGREE NORMAL. SIMILARLY, THE AVERAGE LOW IN SAGINAW WAS 65.5 (3RD
WARMEST ON RECORD), AND +5.3 ABOVE THE NORMAL OF 60.2 DEGREES. THE
AVERAGE TEMPERATURE FOR THE ENTIRE MONTH OF JULY IN FLINT WAS 76.1
(TIED FOR THE 6TH WARMEST), A DEPARTURE OF +5.6 DEGREES FROM THE
70.5 DEGREE JULY NORMAL. FOR SAGINAW, IT WAS 76.4 (3RD WARMEST ON
RECORD), AND +5.4 DEGREES ABOVE THE 71.0 DEGREE JULY NORMAL.