PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1150 PM CDT APR 6 2013

...MARCH 2013 CONTINUES A DRY TREND...

SPRING CAN BE A SEASON OF EXTREMES...AND MARCH 2013 WAS AN EXAMPLE
OF TEMPERATURE EXTREMES ACROSS SOUTHEAST TEXAS. AT LEAST FOUR MAJOR
FRONTAL SYSTEMS BROUGHT LIMITED RAINFALL DURING THE MONTH...HOWEVER
THEIR MAJOR IMPACT WAS TO USHER IN ABOVE NORMAL TEMPERATURES AHEAD
OF AND BELOW NORMAL TEMPERATURES BEHIND EACH FRONT. OVERALL...THE
MONTH AVERAGED OUT BELOW NORMAL FOR RAINFALL AT ALL THE FIRST AND
SECOND CLIMATE SITES. TEMPERATURES FOR MARCH AVERAGED BELOW NORMAL
AT ALL BUT TWO OF THE CLIMATE LOCATIONS.

FOUR COLD EPISODES BROUGHT OVERNIGHT LOW TEMPERATURES AT LEAST INTO
THE 30S. OF THESE...THE FIRST WAS THE COLDEST WITH THE LOWEST
MONTHLY MINIMUM OF 27 OCCURRING AT CONROE ON BOTH MARCH 1ST AND 3RD.
IN CONTRAST...THERE WERE FOUR WARM PERIODS WITH DAYTIME HIGHS IN THE
80S. DURING THE WARMEST EPISODE...THREE CLIMATE SITES SAW DAYTIME
HIGHS IN THE 90S ON THE 18TH...INTERCONTINENTAL AIRPORT AND HOOKS
AIRPORT BOTH REACHED 90 WHILE SUGAR LAND RECORDED 91.

THE MONTH OF MARCH CONTINUED A DRY TREND THAT BEGAN IN MID JANUARY.
THIS ELEVEN-WEEK PERIOD BECAME ONE OF THE EIGHT DRIEST IN THE
CLIMATE RECORD HISTORY FOR THREE OF THE MAJOR CLIMATE SITES. ALONG
THE COAST CONDITIONS WERE ONLY A LITTLE BETTER...FOR EXAMPLE THE
PERIOD WAS ONLY THE EIGHTEENTH DRIEST IN GALVESTON. COMBINING THE
FOUR VERY WARM PERIODS IN MARCH WITH THE VERY DRY CONDITIONS HAVE
LED TO DROUGHT WORSENING ACROSS THE COUNTY WARNING AND FORECAST AREA
OF THE HOUSTON/GALVESTON NATIONAL WEATHER SERVICE OFFICE. THE U.S.
DROUGHT MONITOR RELEASED ON APRIL 2ND SHOWED THAT ALL COUNTIES ALONG
AND WEST OF INTERSTATE 45 WERE EXPERIENCING MODERATE DROUGHT AND
MOST WERE SEEING EXTREME DROUGHT CONDITIONS DEVELOPING. AREAS TO THE
EAST OF INTERSTATE 45 WERE EITHER ABNORMALLY DRY OR IN MODERATE
DROUGHT.

TO ILLUSTRATE THE SEVERITY OF THE DRY PERIOD...THE FOLLOWING TABLE
GIVES THE TOP TEN DRIEST RAINFALL PERIODS FOR JANUARY 16TH THROUGH
MARCH 31ST FOR THE FOUR FIRST ORDER CLIMATE SITES. NOTE THAT DATA
FOR THIS PERIOD IN HOUSTON BEGAN IN 1889...GALVESTON IN 1872...
COLLEGE STATION IN 1901...AND HOBBY AIRPORT IN 1942.


       TOP TEN DRIEST RAINFALL FOR JANUARY 16 THROUGH MARCH 31

          HOUSTON     COLLEGE STATION    GALVESTON     HOBBY AIRPORT
RANK    VALUE  YEAR     VALUE  YEAR     VALUE  YEAR     VALUE  YEAR

 1      1.36   1916     1.60   1996     0.58   1916     1.40   1954
 2      1.71   1954     2.06   1954     1.71   1976     1.88   1962
 3      1.80   1996     2.12   1972     1.89   1925     2.29   1996
 4      2.32   2013     2.31   1971     2.10   1954     2.90   1971
 5      2.44   1962     2.38   1904     2.14   1904     2.91   2013
 6      2.54   1967     2.68   1942     2.52   1939     3.76   2009
 7      2.79   1917     2.70   1986     2.54   1996     3.82   1975
 8      3.00   1976     3.02   2013     2.58   2006     4.09   1967
 9      3.32   1971     3.05   2002     2.63   2002     4.33   2011
10      3.34   1909     3.06   1962     2.74   1965     4.52   2000


NOW FOR THE GENERAL MONTHLY CLIMATE DATA. THE FOLLOWING TABLE LISTS
THE MONTHLY CLIMATE DATA FOR THE FIRST AND SECOND-ORDER CLIMATE SITES
IN THE NWS HOUSTON/GALVESTON COUNTY WARNING AREA FOR THE MONTH OF
MARCH.


SITE      AVG       AVG       AVG        DEP      RAIN       DEP
          HIGH      LOW       MONTH

IAH       73.2      49.3      61.2      -1.5      0.89      -2.52
GLS       70.3      57.2      63.7      +0.3      0.72      -2.44
CLL       72.7      48.3      60.5      -0.9      1.73      -1.44
HOU       72.9      52.0      62.5      -0.8      1.18      -2.02
CXO       72.5      43.5      58.0      -2.3      1.59      -1.60
UTS       71.5      46.5      59.0      -1.6      2.65      -0.76
DWH       73.5      47.3      60.4      -0.4      0.63      -2.96
SGR       73.9      49.3      61.6      -0.2      1.37      -1.88
LBX       72.0      47.3      59.7      -2.3      0.24      -3.23
PSX       73.5      52.7      63.1      +0.2         T      -3.00
LVJ       71.4      50.3      60.8      -1.7      0.56      -2.47
HGX       71.4      49.7      60.6      -1.2      0.70      -2.54


HERE ARE SOME MARCH TEMPERATURE AND RAINFALL TOTALS AVAILABLE FROM
THE HOUSTON/GALVESTON AREA NETWORK OF CO-OP OBSERVERS THAT HAVE
REPORTED AS OF APRIL 4TH.


LOCATION            RAINFALL       AVERAGE HIGH     AVERAGE LOW
                    (INCHES)       TEMPERATURE      TEMPERATURE

ANAHUAC               0.30             68.8             46.7
ANGLETON              0.23             71.5             52.3
BAY CITY              0.19             72.2             45.3
BAYTOWN               0.38             69.5             47.0
BELLVILLE 6NNE        1.20             71.5             46.3
CLEVELAND             3.07             68.6             44.0
CONROE                0.72             71.1             47.3
CROCKETT              1.91             70.8             43.4
DANEVANG 1W           0.15             72.8             44.8
EAGLE LAKE            1.15             72.1             45.3
EL CAMPO              0.31             73.0             47.2
FREEPORT              0.27             70.3             52.7
HOUSTON WFO           0.70             71.4             49.9
HUNTSVILLE            1.56             68.3             44.6
LIBERTY               0.48             72.0             47.2
MADISONVILLE          1.75             69.7             40.9
SOMERVILLE DAM        1.65             73.0             44.7
WASHINGTON SP         1.12             73.2             40.9

$$

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