WFO San Angelo Climatology

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1047 AM CDT WED OCT 4 2006
 
...TEMPERATURES AVERAGED NEAR TO SLIGHTLY BELOW NORMAL IN 
SEPTEMBER...
 
PRECIPITATION FOR THE MONTH VARIED FROM WELL BELOW TO ABOVE NORMAL.
TOTAL RAINFALL WAS LESS THAN ONE INCH AT SCATTERED LOCATIONS ACROSS
THE CONCHO VALLEY...NORTHERN HEARTLAND...AND EASTERN SCHLEICHER
COUNTY. ABOVE NORMAL AMOUNTS (IN THE 3 TO 5 INCH RANGE) OCCURRED AT
WIDELY SCATTERED LOCATIONS IN THE BIG COUNTRY...AND ACROSS PARTS OF
THE NORTHWEST HILL COUNTRY. ELSEWHERE THE MONTHLY AMOUNTS VARIED
FROM 1 TO 3 INCHES. RAINFALL AMOUNTS WERE MOST CONSISTENT ACROSS
THE BIG COUNTRY.
 
AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR SEPTEMBER
WAS 73.2 DEGREES. THIS WAS 2.3 DEGREES BELOW THE NORMAL AVERAGE
TEMPERATURE OF 75.5 DEGREES. TOTAL PRECIPITATION FOR SEPTEMBER WAS
3.17 INCHES. THIS WAS 0.26 INCHES ABOVE THE MONTHLY NORMAL OF 2.91
INCHES.
 
AT SAN ANGELO REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR
SEPTEMBER WAS 74.0 DEGREES. THIS WAS 0.8 DEGREES BELOW THE NORMAL
AVERAGE TEMPERATURE OF 74.8 DEGREES. TOTAL PRECIPITATION FOR
SEPTEMBER WAS 2.60 INCHES. THIS WAS 0.35 INCHES BELOW THE MONTHLY 
NORMAL OF 2.95 INCHES.
 
 
SEPTEMBER 2006 WEATHER HIGHLIGHTS...
 
THE PRIMARY RAIN EVENTS OCCURRED ON THREE SEPARATE OCCASIONS
IN SEPTEMBER.
 
IN THE EARLY PART OF THE MONTH (OVER THE LABOR DAY
HOLIDAY WEEKEND)...THE COMBINATION OF MID AND UPPER LEVEL
MOISTURE FROM HURRICANE JOHN (WEST OF BAJA CALIFORNIA)
AND A DISTURBANCE ALOFT BROUGHT A BENEFICIAL AND MUCH
NEEDED RAIN EVENT TO WEST CENTRAL TEXAS. RAINFALL AMOUNTS
OF 1 TO 3 INCHES OCCURRED ACROSS MUCH OF THE BIG COUNTRY
AND NORTHWEST HILL COUNTRY...AND AT SCATTERED LOCATIONS
ACROSS THE NORTHERN EDWARDS PLATEAU...HEARTLAND AND
CONCHO VALLEY. A FEW LOCATIONS IN THE BIG COUNTRY
RECEIVED OVER 3 INCHES OF RAIN.
 
ON THE 11TH...SCATTERED LOCATIONS ACROSS THE FAR
NORTHWESTERN BIG COUNTRY AND FAR SOUTHERN PARTS OF WEST
CENTRAL TEXAS RECIEVED RAINFALL AMOUNTS RANGING FROM THREE
QUARTERS OF AN INCH TO 1.75 INCHES.
 
SOUTHWEST FLOW ALOFT DEVELOPED INTO WEST CENTRAL TEXAS
ON THE 16TH. WITH THIS SETUP...MOISTURE REMNANTS FROM
HURRICANE LANE IN THE EASTER PACIFIC WERE TRANSPORTED
NORTHEAST ACROSS MEXICO AND INTO WEST CENTRAL TEXAS.
LOW LEVEL MOISTURE FROM THE GULF OF MEXICO WAS ALSO
PRESENT. WITH ABUNDANT MOISTURE IN THE REGION ALONG WITH
THE INFLUENCE OF WEAK UPPER LEVEL DISTURBANCES AND THE
ARRIVAL OF A COLD FRONT...WIDESPREAD SHOWER AND THUNDERSTORM
ACTIVITY OCCURRED ON THE 17TH. MANY LOCATIONS RECEIVED
RAINFALL AMOUNTS RANGING FROM ONE QUARTER TO THREE QUARTERS
OF AN INCH. THE GREATEST RAINFALL OF 1 TO 2 INCHES OCCURRED
AT WIDELY SCATTERED LOCATIONS.
 
SEPTEMBER MARKED THE BEGINNING OF A FEW COLD FRONTAL PASSAGES
ACROSS WEST CENTRAL TEXAS. THE STRONGEST COLD FRONTAL PASSAGE
DURING THE MONTH WAS ON THE 23RD. HIGH PRESSURE WITH AN
APPRECIABLY COOLER AIRMASS SETTLED INTO THE REGION ON THE 24TH.
HIGH TEMPERATURES WERE IN THE LOWER TO MID 70S ON THE 24TH...
AND LOWS ON THE MORNING OF THE 25TH DIPPED INTO THE UPPER 40S
TO LOWER 50S.
 
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