WFO San Angelo Climatology

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
842 PM CDT MON OCT 1 2007

...TEMPERATURES AVERAGED ABOVE NORMAL IN SEPTEMBER...

PRECIPITATION FOR THE MONTH VARIED WIDELY...FROM WELL BELOW NORMAL
TO ABOVE NORMAL. THE MONTLY PRECIPITATION VARIED CONSIDERABLY NOT
ONLY ACROSS THE REGION...BUT ACROSS INDIVIDUAL COUNTIES. THIS WAS
DUE TO THE WIDELY SCATTERED TYPE OF COVERAGE WITH THE SHOWERS AND
STORMS WHICH CONTAINED LOCALLY HEAVY RAINFALL. THESE OCCURRED ON
SEVERAL DAYS DURING THE MONTH...BUT NO SIGNIFICANT WET WEATHER
SYSTEMS AFFECTED THE AREA ON A LARGER SCALE. THE BELOW NORMAL
PRECIPITATION COVERED A LARGER PART OF WEST CENTRAL TEXAS THAN THE
ABOVE NORMAL PRECIPITATION. TOTAL MONTHLY RAINFALL WAS LESS THAN 25
PERCENT OF NORMAL IN POCKETS OF WEST CENTRAL TEXAS...MOST NOTABLY
ACROSS THE NORTHERN CONCHO VALLEY AND SOUTHERN BIG COUNTRY. THE
GREATEST PRECIPITATION OCCURRED ACROSS POCKETS OF FAR EASTERN AND
SOUTHERN SECTIONS OF WEST CENTRAL TEXAS.

AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR SEPTEMBER
WAS 77.4 DEGREES. THIS WAS 1.9 DEGREES ABOVE THE NORMAL AVERAGE
TEMPERATURE OF 75.5 DEGREES. TOTAL PRECIPITATION FOR SEPTEMBER WAS
1.21 INCHES. THIS WAS 1.70 INCHES BELOW THE MONTHLY NORMAL OF 2.91
INCHES.

AT SAN ANGELO REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR
SEPTEMBER WAS 76.8 DEGREES. THIS WAS 2.0 DEGREES ABOVE THE NORMAL
AVERAGE TEMPERATURE OF 74.8 DEGREES. TOTAL PRECIPITATION FOR
SEPTEMBER WAS 2.55 INCHES. THIS WAS 0.40 INCHES BELOW THE MONTHLY
NORMAL OF 2.95 INCHES.


SEPTEMBER 2007 WEATHER HIGHLIGHTS...

EARLY IN THE MONTH...AN UPPER LEVEL DISTURBANCE OVER THE REGION
INTERACTED WITH A MOIST AIRMASS AND GENERATED SCATTERED SHOWERS
AND THUNDERSTORMS ACROSS ROUGHLY THE SOUTHEASTERN HALF OF WEST
CENTRAL TEXAS. THE COVERAGE WAS GREATEST ON THE 4TH. SOUTHEAST
OF A LINE FROM BROWNWOOD TO SONORA...RAINFALL AMOUNTS OF ONE HALF
TO ONE INCH OCCURRED...WITH SCATTERED POCKETS OF 1 TO 3 INCH
AMOUNTS.

SCATTERED SHOWERS AND THUNDERSTORMS OCCURRED ACROSS WEST CENTRAL
TEXAS ON THE 9TH AND 10TH...AS A COLD FRONT MOVED SOUTH
ACROSS THE REGION. SCATTERED LOCATIONS RECEIVED ONE HALF TO ONE
INCH OF RAIN...BUT LOCALLY HIGHER TOTALS OF 1 TO 3 INCHES WERE
RECEIVED AT A FEW LOCATIONS. COOLER AND SOMEWHAT DRIER AIR SETTLED
SOUTH INTO THE REGION AFTER THE COLD FRONTAL PASSAGE. HIGH
TEMPERATURES WERE IN THE 70S ON THE 11TH...AND EARLY MORNING LOWS
WERE IN THE 50S ACROSS THE AREA ON THE 12TH.

DURING MOST OF THE MIDDLE AND LATE PARTS OF SEPTEMBER...HIGH
PRESSURE SYSTEMS ALOFT DEVELOPED OVER TEXAS AND BROUGHT A GENERALLY
WARM AND DRY WEATHER PATTERN TO THE REGION. A COUPLE OF WEAK
DISTURBANCES ALOFT BROUGHT A FEW SHOWERS AND STORMS ON THE 18TH
AND 19TH...BUT THE COVERAGE WAS RELATIVELY SPARSE. A FEW LOCATIONS
ACROSS SOUTHERN AND EASTERN PARTS OF WEST CENTRAL TEXAS RECEIVED 1
TO 2 INCHES OF RAINFALL.

THE TRAILING PORTION OF A WEAK COLD FRONT DROPPED SOUTH INTO WEST
CENTRAL TEXAS ON THE 25TH...BEFORE STALLING AND WASHING OUT ON THE
26TH. WIDELY SCATTERED SHOWERS AND THUNDERSTORMS OCCURRED IN THE
VICINITY OF THIS FRONT. LATE ON THE 26TH...A SMALL CLUSTER OF
THUNDERSTORMS DROPPED SOUTHEAST INTO THE BIG COUNTRY...BRINGING
LOCALLY HEAVY RAIN AND GUSTY WINDS. THE ABILENE REGIONAL AIRPORT
RECORDED A PEAK WIND GUST OF 43 MPH FROM THESE STORMS. ADDITIONAL
WIDELY SCATTERED SHOWERS AND STORMS CONTINUED ON THE 27TH. ON THE
29TH...A FLOW OF GULF MOISTURE AROUND THE WESTERN PERIPHERY OF THE
HIGH PRESSURE SYSTEM ENTERED THE REGION AND RESULTED IN WIDELY
SCATTERED SHOWERS AND THUNDERSTORMS. THESE OCCURRED ACROSS THE
SOUTHERN HALF OF WEST CENTRAL TEXAS. ALTHOUGH THE COVERAGE WAS LOW
WITH THE SHOWERS AND STORMS WHICH OCCURRED LATE IN THE MONTH...
WIDELY SCATTERED LOCATIONS NORTHWEST OF A BROWNWOOD TO OZONA LINE
RECEIVED 1 TO 2 INCH RAINFALL AMOUNTS.

$$