PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
637 AM CDT SUN MAY 2 2010
...APRIL WAS DRIER THAN NORMAL...
...TEMPERATURES WERE GENERALLY NEAR NORMAL LEVELS...
THE AVERAGE TEMPERATURE IN APRIL AT INTERCONTINENTAL AIRPORT WAS
69.5 DEGREES. THIS IS ABOUT A DEGREE WARMER THAN THE 30 YEAR
NORMALS AND ENDED A FOUR MONTH STREAK OF AVERAGE MONTHLY
TEMPERATURES COOLER THAN NORMAL. APRIL REPRESENTED THE EPITOME OF
SPRING WITH HIGH TEMPERATURES REMAINING MODERATE...MILD OVERNIGHT
LOW TEMPERATURES AND FREQUENT RAIN SHOWERS...ALBEIT NONE OF THEM
HEAVY. RAIN TOTALS WERE EXTREMELY LIGHT AND MOST CLIMATE STATIONS
REPORTED BELOW NORMAL RAINFALL. YOU`LL NEED TO WATER IF YOU WANT
TO SEE THOSE MAY FLOWERS. THE LAST TWO MONTHS HAVE BEEN QUITE DRY
PARTICULARLY OVER THE EASTERN HALF OF SOUTHEAST TEXAS. HERE ARE
THE RAINFALL TOTALS FOR THE LAST TWO MONTHS FOR A FEW LOCATIONS
ACROSS SOUTHEAST TEXAS:
LOCATION MARCH APRIL TOTAL NORMAL DEP
(MAR-APR)
HOU IAH 1.88 2.81 4.69 6.96 -2.27
HOU HOBBY 2.04 1.06 3.10 6.65 -3.55
GALVESTON 1.41 0.94 2.35 5.32 -2.97
COL STATION 2.62 1.11 3.73 6.04 -2.31
CONROE 2.01 1.85 3.86 6.75 -2.89
HUNTSVILLE 1.34 0.80 2.14 6.97 -4.83
TOMBALL 2.57 1.16 3.73 5.50 -1.77
SUGARLAND 3.25 2.09 5.34 5.11 +0.23
LEAGUE CITY 2.21 0.61 2.82 7.50 -4.68
PALACIOS 1.81 1.49 3.30 5.50 -2.20
ABOVE NORMAL RAINFALL LAST FALL HELPED TO RECOVER FROM LAST SUMMERS
STIFLING DROUGHT THAT LASTED FROM MAY THROUGH AUGUST. HOWEVER...
THE FIRST FOUR MONTHS OF 2010 HAVE BEEN DRY WITH ONLY FEBRUARY
RECORDING ABOVE NORMAL RAINFALL. FOR THE YEAR THUS FAR...HOUSTON
INTERCONTINENTAL HAS RECORDED 79 PERCENT OF THE EXPECTED NORMAL
RAINFALL. HOBBY AIRPORT HAS RECEIVED ONLY 63.1 PERCENT OF NORMAL
AND GALVESTON IS REPORTING 67.3 PERCENT OF NORMAL RAIN THUS FAR.
COLLEGE STATION HAS RECEIVED ABOUT 80 PERCENT OF NORMAL RAINFALL
SO FAR IN 2010.
AREA RIVERS AND RESERVOIRS REMAIN FULL AS RECENT HEAVY RAINS OVER
NORTH TEXAS CONTINUE TO REPLENISH AREA RIVERS SO THIS SHORT TERM
DRY SPELL WILL HAVE RELATIVELY MINOR AFFECTS FOR AREA AGRICULTURE.
RESIDENTIAL GARDENS AND LAWNS WILL PROBABLY BE THIRSTY AND REQUIRE
SOME WATER TO STAY HEALTHY. THE FIRST WEEK IN MAY IS LOOKING
CONSIDERABLY WARMER THAN TEMPERATURES IN APRIL AS AN UPPER LEVEL
RIDGE BUILDS OVER TEXAS. HIGH TEMPERATURES WILL WARM INTO THE
LOWER 90S BY TUESDAY. THE AIR MASS FOR THE FIRST HALF OF THE WEEK
WILL BE QUITE DRY WITH HUMIDITY LEVELS RISING BY FRIDAY. LONG TERM
MODELS DIVERGE A BIT WITH REGARD TO MOISTURE BY MID-MONTH. IF A
COLD FRONT CAN MAKE IT TO THE COAST BY SATURDAY...RAIN CHANCES
LOOK RATHER PROMISING FOR NEXT WEEKEND. IF THE FRONT STALLS NORTH
OF THE AREA...UPPER LEVEL RIDGING WILL HOLD AND AN EXTENDED WARM
AND DRY PERIOD WILL ENSUE.
BELOW IS A TABLE WITH THE APRIL TEMPERATURE AND RAINFALL DATA:
SITE AVG AVG AVG DEP RAIN DEP
HIGH LOW MONTHLY
IAH 79.5 59.5 69.5 +1.0 2.81 -0.79
GLS 75.2 64.5 69.9 -0.1 0.94 -1.62
CLL 79.3 58.5 68.9 +1.0 1.11 -2.09
HOU 77.7 61.7 69.7 -0.3 1.06 -2.40
CXO 79.3 54.9 67.1 -0.2 1.85 -1.99
UTS 77.2 55.5 66.3 -0.8 0.80 -2.70
DWH 79.1 58.4 68.8 -1.1 1.16 -1.76
SGR 78.4 59.2 68.8 -1.8 2.09 -0.53
PSX 78.4 63.8 71.1 +2.6 1.49 -1.31
LVJ 77.5 60.8 69.2 -0.2 0.99 -1.78
HGX 76.1 59.7 67.9 +0.1 0.61 -3.38
$$
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