PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 1000 PM CDT THU OCT 21 2009 ...PRECIPITATION VARIED FROM WELL ABOVE TO WELL BELOW NORMAL IN SEPTEMBER... OVERALL...THE MONTHLY PRECIPITATION WAS BELOW NORMAL ACROSS MUCH OF THE WESTERN SECTIONS OF WEST CENTRAL TEXAS. A FEW LOCATIONS FROM CROCKETT COUNTY TO WESTERN STERLING COUNTY RECEIVED LESS THAN 25 PERCENT OF NORMAL. PRECIPITATION WAS ABOVE NORMAL FOR THE MONTH ACROSS AREAS OF THE NORTHERN AND EASTERN BIG COUNTRY...HEARTLAND...CONCHO VALLEY AND NORTHWEST HILL COUNTRY. THE MONTHLY AMOUNTS WERE MUCH ABOVE NORMAL ACROSS AN AREA BOUNDED BY A LINE FROM JUNCTION TO SAN ANGELO TO RICHLAND SPRINGS...AND BACK TO JUNCTION. TEMPERATURES AVERAGED BELOW NORMAL FOR THE MONTH. AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR SEPTEMBER WAS 72.6 DEGREES. THIS WAS 2.9 DEGREES BELOW THE NORMAL AVERAGE TEMPERATURE OF 75.5 DEGREES. TOTAL PRECIPITATION FOR SEPTEMBER WAS 3.55 INCHES. THIS WAS 0.64 INCHES ABOVE THE MONTHLY NORMAL OF 2.91 INCHES. AT SAN ANGELO REG5ONAL AIRPORT...THE AVERAGE TEMPERATURE FOR SEPTEMBER WAS 74.6 DEGREES. THIS WAS 0.3 DEGREES BELOW THE NORMAL AVERAGE TEMPERATURE OF 74.8 DEGREES. TOTAL PRECIPITATION FOR SEPTEMBER WAS 5.66 INCHES. THIS WAS 2.71 INCHES ABOVE THE MONTHLY NORMAL OF 2.95 INCHES. AT JUNCTION...THE TOTAL PRECIPTATION FOR SEPTEMBER WAS 4.75 INCHES. ...SEPTEMBER 2009 WEATHER HIGHLIGHTS... HIGH PRESSURE AT THE SURFACE AND ALOFT BROUGHT WARM AND DRY CONDITIONS DURING THE FIRST FEW DAYS OF THE MONTH. WITH AN INCREASE IN MOISTURE AND WITH THE INFLUENCE OF A FEW WEAK UPPER LEVEL DISTURBANCES...SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPED LATE ON THE 3RD ACROSS THE NORTHERN BIG COUNTRY...AND OCCURRED ACROSS VARIOUS PARTS OF WEST CENTRAL TEXAS FROM THE 5TH THROUGH THE 8TH. THE ABILENE REGIONAL AIRPORT RECORDED A 43 MPH WIND FROM A THUNDERSTORM ON THE EVENING OF THE 4TH. SHOWERS AND THUNDERSTORMS INCREASED IN COVERAGE ON THE 9TH... AND A RATHER WET PERIOD OCCURRED ACROSS WEST CENTRAL TEXAS FROM THE 10TH TO THE 13TH. A WEAK UPPER LEVEL LOW PRESSURE SYSTEM MEANDERED ACROSS CENTRAL TEXAS DURING THAT TIME. WITH ABUNDANT MOISTURE WRAPPING AROUND THIS LOW PRESSURE SYSTEM AND INTO WEST CENTRAL TEXAS...SHOWERS AND SCATTERED THUNDERSTORMS OCCURRED WITH HEAVY RAIN. FROM THE 8TH TO 13TH...RAINFALL AMOUNTS OF 3 TO 4 INCHES WERE COMMON ACROSS MOST OF THE BIG COUNTRY (INCLUDING ABILENE)...THE SOUTHERN HALF OF THE CONCHO VALLEY (INCLUDING SAN ANGELO)... THE NORTHWEST HILL COUNTRY AND SOUTHERN HEARTLAND. WITHIN THIS LARGER AREA...AMOUNTS OF 3 TO 5 INCHES OCCURRED EAST AND SOUTHEAST OF SAN ANGELO TOWARD BRADY...MASON AND JUNCTION. THESE AMOUNTS ALSO OCCURRED IN SCATTERED POCKETS ACROSS THE BIG COUNTRY. THE HIGHEST RAINFALL TOTALS OF 5 TO 6 INCHES OCCURRED AT SCATTERED LOCATIONS GENERALLY BETWEEN SAN ANGELO...BRADY... MASON AND JUNCTION. RECORD DAILY RAINFALL AMOUNTS WERE SET AT SAN ANGELO ON THE 10TH AND 13TH. THE WIDESPREAD COVERAGE OF RAINFALL DURING THIS TIME FRAME WAS BENEFICIAL TO THE REGION...BRINGING SHORT TERM RELIEF TO THE AREAS WHICH WERE EXPERIENCING DROUGHT CONDITIONS. THE WIDESPREAD COVERAGE OF CLOUDS AND PRECIPITATION HELD DAYTIME TEMPERATURES DOWN DURING THIS TIME AS WELL. HIGHS WERE IN THE 70S ACROSS MOST OF WEST CENTRAL TEXAS FROM THE 11TH THROUGH 13TH. A RECORD LOW MAXIMUM TEMPERATURE WAS SET AT SAN ANGELO ON THE 12TH. A MORE TRANQUIL PATTERN OCCURRED DURING THE MIDDLE OF THE MONTH...WITH THE PREVAILING INFLUENCE OF HIGH PRESSURE. ON THE 20TH...AN UPPER LEVEL DISTURBANCE BROUGHT SCATTERED SHOWERS AND THUNDERSTORMS TO THE NORTHERN EDWARDS PLATEAU... AND TO THE SOUTHWESTERN BIG COUNTRY...NORTHERN CONCHO VALLEY AND NORTHERN HEARTLAND. STRONG THUNDERSTORM WINDS IN ELDORADO DAMAGED A STORAGE BUILDING AND SNAPPED A UTILITY POLE. STRONG WINDS FROM ANOTHER SEVERE STORM IN WINTERS DOWNED SEVERAL POWERLINES AND TREES. THE GREATEST RAINFALL AMOUNTS (BETWEEN 1.5 AND 3 INCHES) OCCURRED IN TH AREA BETWEEN WESTERN COLEMAN COUNTY AND SOUTHERN NOLAN COUNTY. WITH THE APPROACH OF A STRONG COLD FRONT INTO AN UNSTABLE AIRMASS...A COUPLE OF SEVERE THUNDERSTORMS OCCURRED ON THE LATE AFTERNOON AND EVENING OF THE 21ST. NICKEL SIZE HAIL WAS REPORTED IN CLYDE AND NEAR BROWNWOOD...AND PENNY SIZE HAIL OCCURRED 2 MILES NORTHEAST OF GLEN COVE (COLEMAN COUNTY). FROM THE 22ND TO THE 24TH...AN UPPER LEVEL LOW PRESSURE SYSTEM WAS SITUATED OVER THE CENTRAL HIGH PLAINS...AND MOVED LITTLE DURING THAT TIME. A FEW DISTURBANCES ROTATED AROUND THE SOUTHERN PERIPHERY OF THIS SYSTEM AND INTO TEXAS... BRINGING PERIODIC RAIN SHOWERS. SOME RAIN SHOWERS OCCURRED MAINLY ACROSS SOUTHEASTERN SECTIONS OF WEST CENTRAL TEXAS ON THE 22ND AND 23RD. RAINFALL AMOUNTS WERE MOSTLY LESS THAN ONE QUARTER OF AN INCH. RAIN SHOWERS ALSO OCCURRED ACROSS THE NORTHWESTERN HALF OF WEST CENTRAL TEXAS ON THE 24TH. THE HIGHER AMOUNTS...GENERALLY IN THE ONE QUARTER TO ONE HALF INCH RANGE...OCCURRED ACROSS THE NORTHERN AND WESTERN BIG COUNTRY INTO A SMALL PART OF THE NORTHERN CONCHO VALLEY. DAYTIME TEMPERATURES WERE CONSIDERABLY COOLER ON THE 22ND THROUGH 24TH...WITH HIGHS WERE MOSTLY IN THE 70S. TEMPERATURES DIPPED INTO THE MID 40S TO LOWER 50S FOR LOWS ON THE EARLY MORNING OF THE 25TH...AS HIGH PRESSURE SETTLED INTO THE REGION. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OCCURRED ACROSS SOUTHEASTERN SECTIONS OF WEST CENTRAL TEXAS ON THE 28TH WITH THE ARRIVAL OF A COLD FRONT. ISOLATED LOCATIONS RECEIVED OVER AN INCH OF RAINFALL. A WEAK UPPER LEVEL DISTURBANCE GENERATED SCATTERED SHOWERS AND THUNDERSTORMS ACROSS SOUTHEASTERN SECTIONS OF WEST CENTRAL TEXAS ON THE MORNING OF THE 29TH. ISOLATED LOCATIONS RECEIVED OVER AN INCH OF RAINFALL FROM THIS SYSTEM. $$