WFO San Angelo Climatology

NOUS44 KSJT 012050
PNSSJT

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
350 PM CDT WED SEP 1 2004

...ABILENE TIED ITS 5TH COOLEST AND RECORDED ITS 14TH WETTEST 
   AUGUST...

...SAN ANGELO TIED ITS 6TH COOLEST AND RECORDED ITS 14TH 
   WETTEST AUGUST...

AUGUST WAS COOLER AND MUCH WETTER THAN NORMAL ACROSS WEST 
CENTRAL TEXAS. MUCH COOLER THAN NORMAL CONDITIONS WERE 
EXPERIENCED IN THE BIG COUNTRY. THE WETTER THAN NORMAL 
CONDITIONS WERE MOST PRONOUNCED IN THE HEARTLAND...ALONG WITH 
PARTS OF THE BIG COUNTRY...NORTHWEST HILL COUNTRY...AND EASTERN 
CONCHO VALLEY. 

AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR AUGUST 
WAS 78.0 DEGREES. THIS WAS 4.6 DEGREES BELOW THE NORMAL AVERAGE 
TEMPERATURE OF 82.6 DEGREES. THIS TIES THE 5TH COOLEST AUGUST
FOR ABILENE. TOTAL PRECIPITATION FOR AUGUST WAS 5.02 INCHES. 
THIS WAS 2.39 INCHES ABOVE THE NORMAL OF 2.63 INCHES. ABILENE 
RECORDED NO DAYS WHERE THE HIGH TEMPERATURE REACHED 100 DEGREES 
OR MORE.  

AT SAN ANGELO REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR 
AUGUST WAS 79.5 DEGREES. THIS WAS 1.8 DEGREES BELOW THE NORMAL 
AVERAGE TEMPERATURE OF 81.3 DEGREES. THIS TIES THE 6TH COOLEST
AUGUST FOR SAN ANGELO. TOTAL PRECIPITATION FOR AUGUST WAS 4.32 
INCHES. THIS WAS 2.27 INCHES ABOVE THE MONTHLY NORMAL OF 2.05 
INCHES. THE HIGH TEMPERATURE REACHED 100 DEGREES OR MORE ON ONE 
DAY IN AUGUST.


AUGUST 2004 WEATHER HIGHLIGHTS...

SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OCCURRED IN WEST 
CENTRAL TEXAS ON NUMEROUS OCCASIONS DURING AUGUST. 

WITH THE COMBINATION OF A FEW COLD FRONTAL PASSAGES ALONG WITH 
A GREATER THAN USUAL FREQUENCY OF SHOWERS AND THUNDERSTORMS...
BELOW NORMAL TEMPERATURES PREVAILED DURING MOST OF AUGUST...
ESPECIALLY IN THE BIG COUNTRY. IN ABILENE THE HIGH TEMPERATURE 
WAS BELOW 90 DEGREES ON 20 DAYS DURING THE MONTH. SAN ANGELO 
RECORDED 14 DAYS WITH HIGHS BELOW 90. IN JUNCTION...THE HIGH 
TEMPERATURE WAS BELOW 90 ON 13 DAYS. RECORD LOW TEMPERATURES 
WERE TIED OR BROKEN AT ABILENE ON THE 12TH...16TH AND 17TH. A 
RECORD LOW MAXIMUM TEMPERATURE WAS SET IN SAN ANGELO ON THE 
21ST.  

THE MONTH BEGAN WITH A PERIOD OF SEASONABLY HOT WEATHER...
UNDER THE DOMINANCE OF AN UPPER LEVEL RIDGE OF HIGH PRESSURE 
TO THE NORTHWEST OF THE REGION. THIS RIDGE OF HIGH PRESSURE
RETREATED WESTWARD...ALLOWING A COLD FRONT TO MOVE SOUTHWARD
ACROSS WEST CENTRAL TEXAS ON THE 5TH. 

WHEN A NORTHWEST FLOW ALOFT DEVELOPED INTO THE REGION...UPPER 
LEVEL DISTURBANCES BROUGHT SCATTERED TO NUMEROUS SHOWERS AND 
THUNDERSTORMS FROM THE 6TH TO THE 9TH. ON THE EVENING OF THE
6TH...SOME STORMS WERE SEVERE AND CONTAINED VERY HEAVY 
RAINFALL. HAIL TO QUARTER SIZE OCCURRED IN KIMBLE COUNTY...
AND PENNY SIZE HAIL WAS REPORTED IN IRION COUNTY. IN 
ADDITION...WINDS TO 60 MPH WERE REPORTED IN GRAPE CREEK 
(TOM GREEN COUNTY). SOME STREET FLOODING OCCURRED IN SAN 
ANGELO...AND ISOLATED FLOODING WAS REPORTED 10 MILES WEST 
OF JUNCTION. FROM THE 6TH TO THE 9TH...SCATTERED LOCATIONS TO 
THE SOUTH AND WEST OF A LINE FROM RICHLAND SPRINGS TO COLEMAN 
TO HAMLIN RECEIVED 1 TO 2 INCHES OF RAINFALL...WITH LOCALIZED 
AMOUNTS OF 2 TO 3 INCHES. THE RAINFALL COVERAGE AND AMOUNTS
WERE LESS ACROSS FAR NORTHERN AND EASTERN PARTS OF WEST 
CENTRAL TEXAS. 

WEAK UPPER LEVEL DISTURBANCES BROUGHT A FEW SHOWERS AND
THUNDERSTORMS TO VARIOUS PARTS OF WEST CENTRAL TEXAS FROM THE 
12TH TO 14TH. RAINFALL AMOUNTS WERE GENERALLY LESS THAN ONE 
HALF INCH...EXCEPT FOR CROCKETT COUNTY. RAINFALL OVER MUCH OF 
CROCKETT COUNTY RANGED FROM ONE HALF TO ONE INCH...WITH 
POCKETS OF ONE TO TWO INCH AMOUNTS.   

ON THE AFTERNOON AND EVENING OF THE 15TH...NUMEROUS SHOWERS 
AND THUNDERSTORMS WITH HEAVY RAIN OCCURRED NORTH OF 
INTERSTATE 20...WITH SCATTERED SHOWERS AND STORMS FARTHER 
SOUTH INTO THE CONCHO VALLEY. SCATTERED LOCATIONS RECEIVED
ONE TO TWO INCHES NORTH OF INTERSTATE 20...WITH POCKETS OF
THREE TO FOUR INCH AMOUNTS. FARTHER TO THE SOUTH THE AMOUNTS
GENERALLY VARIED UNDER ONE INCH.  

A VERY WET PERIOD OCCURRED FROM THE 19TH TO 22ND...AS A 
SERIES OF UPPER LEVEL DISTURBANCES MOVED INTO THE REGION 
AND INTERACTED WITH A VERY MOIST AIRMASS. SEVERAL ROUNDS OF 
SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN OCCURRED. 
RAINFALL TOTALS DURING THIS TIME PERIOD WERE GREATEST 
ACROSS THE HEARTLAND...SOUTHEASTERN BIG COUNTRY AND 
EASTERN CONCHO VALLEY. AMOUNTS GENERALLY RANGED FROM 3 TO 
6 INCHES...WITH POCKETS OF 6 TO 10 INCHES IN BROWN...SAN 
SABA AND EXTREME SOUTHERN CALLAHAN COUNTIES. ACROSS THE 
FAR NORTH AND NORTHWESTERN BIG COUNTRY...MUCH OF THE CONCHO
VALLEY AND INTO THE NORTHERN EDWARDS PLATEAU...RAINFALL 
GENERALLY VARIED FROM 1 TO 2.5 INCHES. MOST LOCATIONS 
ACROSS IRION AND CROCKETT COUNTIES RECEIVED LESS THAN ONE 
INCH. 

THE VERY HEAVY RAINFALL CAUSED CONSIDERABLE FLOODING OF 
STREETS AND ROADS IN THE HEARTLAND...AND SEVERAL SEGMENTS 
OF ROADS WERE CLOSED. FLOODWATERS ENTERED SOME RESIDENCES
IN BROWNWOOD. ROAD FLOODING OCCURRED AT SCATTERED LOCATIONS
IN THE BIG COUNTRY...INCLUDING THE ABILENE AREA.

SEVERE STORMS ON THE EVENING OF THE 20TH PRODUCED BASEBALL
SIZE HAIL WHICH CAUSED DAMAGE IN BALLINGER. QUARTER SIZE 
HAIL WAS REPORTED IN ROWENA...AND NICKEL SIZE HAIL OCCURRED 
2 MILES EAST OF VANCOURT. WINDS TO 65 MPH DOWNED TREE LIMBS 
IN VOCA.  

WINDS TO 60 MPH FROM A SEVERE STORM DOWNED POWER LINES IN
ELDORADO ON THE LATE AFTERNOON OF THE 25TH.  

ADDITIONAL HEAVY RAIN EVENTS OCCURRED THROUGH THE LATE 
PART OF THE MONTH ACROSS MUCH OF WEST CENTRAL TEXAS...AS 
UPPER LEVEL DISTURBANCES AND SURFACE BOUNDARIES INTERACTED 
WITH MOISTURE OVER THE REGION. MOST OF THE HEAVY RAIN 
OCCURRED IN THE BIG COUNTRY...CONCHO VALLEY AND NORTHERN 
EDWARDS PLATEAU. WIDELY SCATTERED LOCATIONS RECEIVED OVER 
TWO INCHES OF RAIN LATE IN THE MONTH. THE HEAVIEST 
RAINFALL OF 4 TO 8 INCHES OCCURRED IN WESTERN SUTTON 
COUNTY. MOST OF THIS OCCURRED DURING THE OVERNIGHT HOURS OF 
THE 30TH AND 31ST...AND CAUSED FLOODING OF ROADS. A SEVERE
STORM CAUSED WIND DAMAGE IN OZONA ON THE EVENING OF THE 
30TH.

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