PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1157 PM CDT TUE MAY 5 2009
...APRIL 2009 WETTER THAN NORMAL ACROSS MOST OF SOUTHEAST TEXAS...
TWO MAJOR RAINFALL EVENTS DURING THE MIDDLE AND LAST OF THE MONTH
ALLOWED THE DROUGHT TO BE BROKEN ACROSS MOST OF SOUTHEAST TEXAS IN
APRIL. ONLY THE FAR SOUTHWESTERN COUNTIES OF COLORADO...WHARTON...
MATAGORDA...AND JACKSON REMAINED IN DROUGHT CONDITIONS BY THE END
OF THE MONTH. EVEN THEN...RAINFALL AMOUNTS AVERAGED ABOUT 2 INCHES
IN THOSE LOCATIONS. TEMPERATURES ENDED UP NEAR TO SLIGHTLY BELOW
NORMAL FOR THE MONTH.
HERE IS A LIST FOR THE MONTHLY TEMPERATURE AND RAINFALL DATA FOR
THE PRIMARY SUPPLEMENTAL CLIMATE SITES ACROSS SOUTHEAST TEXAS.
THIS DATA IS PRELIMINARY.
SITE AVG AVG AVG DEP RAIN DEP
HIGH LOW MONTH
IAH 78.6 58.6 68.6 +0.1 10.38 +6.78
GLS 76.0 63.9 70.0 0.0 5.23 +2.67
CLL 78.2 57.2 67.7 -0.2 6.11 +2.91
HOU 78.5 60.6 69.6 -0.4 15.61 +12.15
PSX 79.1 62.3 70.7 2.02
UTS 76.5 56.1 66.3 6.53
CXO 77.5 53.6 65.6 7.54
LVJ 77.9 59.0 68.4 16.61
LBX 78.8 57.6 68.2 3.40
SGR 79.0 58.9 68.9 8.10
HGX 76.5 59.0 67.8 13.63
THE HEAVIEST RAINFALL FELL DURING TWO SEPARATE EPISODES...THE
16TH THROUGH THE 18TH...AND THE 27TH THROUGH THE 28TH. A LARGE
PORTION OF THE INLAND SECTIONS RECEIVED RAINFALL BETWEEN 3 AND 6
INCHES ABOVE NORMAL...SOME AREAS UP TO NEAR 12 INCHES ABOVE
NORMAL. THE FOLLOWING IS A LIST OF RAINFALL AMOUNTS FOR BOTH RAIN
EPISODES FROM THE PRIMARY SUPPLEMENTAL CLIMATE SITES. IT INCLUDES
THE THE GREATEST 24-HOUR RAINFALL TOTALS AND DATES FOR EACH
SITE...
SITE 16-18 27-28 GREATEST GREATEST
RAINFALL RAINFALL 24-HOUR DATES
IAH 4.88 4.16 4.67 17-18
GLS 4.24 0.59 3.26 18
CLL 3.82 1.70 3.78 17-18
HOU 7.81 2.38 7.54 17-18
PSX 0.90 1.03 1.03 27
UTS 3.88 0.75 3.87 17-18
CXO 3.57 3.40 3.40 27-28
LVJ 7.95 2.70 7.56 17-18
LBX 2.11 0.95 1.87 17-18
SGR 3.74 2.07 3.53 17-18
HGX 9.76 1.24 7.88 18
THERE WERE SOME VOLUNTEER OBSERVERS AND HARRIS COUNTY FLOOD
CONTROL GAGES WHICH RECORDED BETWEEN 9 AND JUST OVER 10.5 INCHES
OF RAINFALL DURING BOTH HEAVY RAINFALL EVENTS. A LIST OF THESE
FOLLOWS...
LOCATION 7 AM CDT 24-HOUR
RAINFALL AND DATE
LEAGUE CITY 1.2 N 10.63 ON APRIL 18TH
LEAGUE CITY 1.7 NW 10.02 ON APRIL 18TH
JERSEY VILLAGE 6.2 W 10.13 ON APRIL 28TH
HOU-BUFFALO BYU @ W BELT DR 9.41 ON APRIL 28TH
BUNKER HILL VILLAGE 3.6 NNW 9.74 ON APRIL 28TH
THE LEAGUE CITY 1.7 NW SITE RECEIVED A 2-DAY TOTAL OF 11.80 INCHES
ON APRIL 17TH AND 18TH.
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