WFO San Angelo Climatology

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1108 PM CDT THU JUN 4 2009

...3RD DRIEST MAY TIED AT SAN ANGELO...

PRECIPITATION FOR MAY VARIED WIDELY ACROSS WEST CENTRAL TEXAS...
FROM WELL ABOVE TO WELL BELOW NORMAL. THIS WAS DUE TO THE
SCATTERED COVERAGE OF SHOWERS AND STORMS. SCATTERED POCKETS
RECEIVED THE LOWEST MONTHLY AMOUNTS OF LESS THAN ONE HALF INCH
WHILE OTHER SCATTERED POCKETS RECEIVED THE HIGHEST MONTHLY
AMOUNTS...GREATER THAN 5 INCHES. TEMPERATURES AVERAGED NEAR TO
ABOVE NORMAL FOR THE MONTH.

AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR MAY WAS
72.3 DEGREES. THIS WAS 0.5 DEGREES BELOW THE NORMAL AVERAGE
TEMPERATURE OF 72.8 DEGREES. TOTAL PRECIPITATION FOR MAY WAS 3.28
INCHES. THIS WAS 0.45 INCHES ABOVE THE MONTHLY NORMAL OF 2.83
INCHES. ABILENE RECORDED 2 DAYS WITH A HIGH TEMPERATURE OF 100
DEGREES OR GREATER.

AT SAN ANGELO REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR MAY
WAS 74.7 DEGREES. THIS WAS 1.6 DEGREES ABOVE THE NORMAL AVERAGE
TEMPERATURE OF 73.1 DEGREES. TOTAL PRECIPITATION FOR MAY AT THE
SAN ANGELO REGIONAL AIRPORT WAS ONLY 0.12 INCHES. THIS WAS 2.97
INCHES BELOW THE MONTHLY NORMAL OF 3.09 INCHES. THIS TIED THE
RECORD FOR THE 3RD DRIEST MAY AT SAN ANGELO. AREAS OF THE CITY...
HOWEVER...RECEIVED MORE RAINFALL THAN AT THE AIRPORT DURING MAY.
SAN ANGELO RECORDED 1 DAY WITH A HIGH TEMPERATURE OF 100
DEGREES OR GREATER.


MAY 2009 WEATHER HIGHLIGHTS...

ON THE LATE AFTERNOON THROUGH EARLY NIGHTTIME HOURS OF THE 1ST...
WITH THE APPROACH OF A COLD FRONT INTO A VERY UNSTABLE AIRMASS...
A FEW SUPERCELL SEVERE STORMS DEVELOPED AND MOVED SOUTH AND
SOUTHEAST ACROSS PARTS OF THE BIG COUNTRY. A TORNADO WAS REPORTED
WITH THE FIRST STORM 5 MILES SOUTHWEST OF OBRIEN (HASKELL COUNTY)
AND 3 MILES NORTH OF RULE. THIS STORM ALSO PRODUCED VERY LARGE
HAIL...FROM BASEBALL TO SOFTBALL SIZE...IN WESTERN HASKELL COUNTY.

A TORNADO WAS REPORTED FROM ANOTHER STORM 5 MILES NORTHEAST OF
HAMBY (SHACKELFORD COUNTY). GOLFBALL SIZE HAIL WAS REPORTED FROM
A STORM 7 MILES NORTHEAST OF ROBY (FISHER COUNTY).

LOCALIZED HEAVY RAINFALL OF 1 TO 2 INCHES ALSO ACCOMPANIED THESE
STORMS.

FOLLOWING THE COLD FRONTAL PASSAGE...WITH CONSIDERABLE CLOUD
COVER ON THE 2ND...TEMPERATURES WERE CONFINED TO THE 60S FOR HIGHS
ACROSS THE BIG COUNTRY. THE COOL TEMPERATURES (WITH HIGHS IN THE
60S) LINGERED ON THE 3RD ACROSS THE BIG COUNTRY.

WITH THE APPROACH OF AN UPPER LEVEL DISTURBANCE...SCATTERED SHOWERS
AND THUNDERSTORMS OCCURRED ACROSS MUCH OF THE NORTHERN HALF OF
WEST CENTRAL TEXAS...DURING THE POST-MIDNIGHT HOURS OF THE 3RD. A
FEW LOCATIONS ACROSS THE HEARTLAND RECEIVED ONE HALF TO ONE INCH
OF RAINFALL. OTHERWISE THE AMOUNTS VARIED UNDER ONE HALF INCH.

AS A COLD FRONT DRIFTED SOUTH ACROSS THE NORTHERN HALF OF WEST
CENTRAL TEXAS ON THE 6TH...TEMPERATURES VARIED WIDELY FROM NORTH
TO SOUTH ACROSS THE REGION. NORTH OF THE FRONT WHERE CLOUD COVER
PERSISTED...TEMPERATURES WERE IN THE 70S ACROSS THE BIG COUNTRY.
SOUTH OF THE FRONT ACROSS SOUTHERN PARTS OF WEST CENTRAL TEXAS...
TEMPERATURES REACHED THE MID TO UPPER 90S FOR HIGHS.

AFTER SOUTHERLY WINDS REDEVELOPED...TEMPERATURES WERE MUCH HOTTER
ACROSS THE ENTIRE AREA ON THE 7TH AND 8TH. TEMPERATURES REACHED
OR EXCEEDED 100 DEGREES FOR HIGHS AT NUMEROUS LOCATIONS ACROSS
WEST CENTRAL TEXAS. THIS MARKED THE FIRST OCCURRENCE OF 100-
DEGREE TEMPERATURES THIS YEAR.

A SIGNIFICANT SEVERE WEATHER EVENT OCCURRED ACROSS THE HEARTLAND
ON THE EVENING AND EARLY NIGHTTIME HOURS OF THE 8TH. A COLD
FRONT MOVED SOUTH ACROSS WEST CENTRAL TEXAS AND INTERACTED WITH
A HIGHLY UNSTABLE AIRMASS. A LARGE SUPERCELL THUNDERSTORM...
WHICH DEVELOPED ALONG THE FRONT NORTHEAST OF BROWN COUNTY...
MAINTAINED ITSELF WHILE CONTINUALLY DEVELOPING DOWN THE
ADVANCING FRONT. THE TRACK OF THIS STORM WAS TO THE SOUTH-
SOUTHWEST ACROSS BROWN...NORTHWESTERN SAN SABA COUNTY AND
MCCULLOCH COUNTY.

THIS SUPERCELL STORM MAY HAVE PRODUCED A COUPLE OF TORNADOES
ALONG ITS PATH. THE TOWNS OF BROWNWOOD AND EARLY WERE IMPACTED
BY STRAIGHT-LINE WIND DAMAGE. IN BROWNWOOD...WIDESPREAD WIND
DAMAGE OCCURRED ACROSS THE EAST-CENTRAL PART OF TOWN. THE DAMAGE
WAS CONSISTENT WITH WINDS OF 80 TO 85 MPH. THE EAST SIDE OF EARLY
ALSO EXPERIENCED WIDESPREAD WIND DAMAGE. THIS DAMAGE WAS ALSO
CONSISTENT WITH WINDS OF 80 TO 85 MPH. IN SAN SABA COUNTY...
WIND GUSTS TO 80 MPH WERE REPORTED 3 MILES WEST OF RICHLAND
SPRINGS. IN MCCULLOCH COUNTY...A WIND GUST OF 62 MPH WAS
MEASURED BY THE WIND EQUIPMENT AT THE BRADY AIRPORT...AND 70 MPH
WINDS WERE REPORTED IN PLACID. LARGE HAIL ALSO ACCOMPANIED THIS
STORM. GOLFBALL SIZE HAIL WAS REPORTED AT SEVERAL LOCATIONS
ACROSS BROWN COUNTY...AND AT A COUPLE OF LOCATIONS IN MCCULLOCH
COUNTY.

VERY HEAVY RAINFALL AND FLASH FLOODING ALSO OCCURRED WITH THIS
LARGE STORM. RAINFALL AMOUNTS BETWEEN 1.5 AND 3 INCHES OCCURRED
ACROSS MUCH OF BROWN...NORTHERN MCCULLOCH...AND NORTHWESTERN
SAN SABA COUNTIES. A SMALL PART OF BROWN COUNTY RECEIVED OVER
3 INCHES OF RAIN. THE VERY HEAVY RAIN CAUSED FLASH FLOODING OF
ROADS IN THE BROWNWOOD AREA...ALONG WITH THE FLOODING OF SOME
HOMES.

WITH THE ARRIVAL OF A WEAK UPPER LEVEL DISTURBANCE...AN AREA
OF SHOWERS AND THUNDERSTORMS MOVE EAST ACROSS THE NORTHERN
EDWARDS PLATEAU AND SOUTHERN CONCHO VALLEY DURING THE OVERNIGHT
HOURS OF THE 12TH AND 13TH...BEFORE DISSIPATING. LOCATIONS JUST
NORTH OF THIS AREA EXPERIENCED STRONG GUSTY SOUTH WINDS...
ACROSS THE NORTHERN HALF OF TOM GREEN COUNTY AND RUNNELS
COUNTY. A FEW POWER LINES AND A LARGE TREE WERE BLOWN DOWN IN
BALLINGER. A PEAK WIND GUST OF 40 MPH WAS RECORDED AT THE SAN
ANGELO REGIONAL AIRPORT. THE RAINFALL AMOUNTS MOSTLY VARIED
UNDER ONE HALF INCH WHERE THE RAINFALL OCCURRED...BUT WIDELY
SCATTERED LOCATIONS RECEIVED ONE HALF TO ONE INCH OF RAIN.

WITH A WEAK DISTURBANCE ALOFT...SCATTERED SHOWERS AND
THUNDERSTORMS OCCURRED FROM THE LATE EVENING OF THE 15TH INTO
THE EARLY MORNING HOURS OF THE 16TH. A SEVERE STORM PRODUCED
NICKEL TO QUARTER SIZE HAIL AT JUNCTION...JUST AFTER MIDNIGHT
ON THE 16TH. ADDITIONAL SHOWERS AND THUNDERSTORMS OCCURRED
ACROSS THE BIG COUNTRY ON THE MORNING OF THE 16TH...IN
ASSOCIATION WITH A COLD FRONT WHICH WAS MOVING SOUTH ACROSS
THAT AREA. THE HIGHEST RAINFALL AMOUNTS (OVER 3 INCHES)
OCCURRED AT A FEW LOCATIONS ACROSS SOUTHERN SHACKELFORD
COUNTY. OTHER SCATTERED LOCATIONS ACROSS THE BIG COUNTRY
RECEIVED BETWEEN 1.5 AND 3 INCHES. ABILENE SET A NEW DAILY
RAINFALL RECORD ON THE 16TH...WITH 2.01 INCHES OF RAINFALL.
ACROSS THE REST OF WEST CENTRAL TEXAS...WIDELY SCATTERED
LOCATIONS RECEIVED BETWEEN ONE HALF AND 1.5 INCHES.

THE COLD FRONT PUSHED SOUTH THROUGH ALL OF WEST CENTRAL
TEXAS ON THE 16TH...AND WAS FOLLOWED BY A COOLER AND DRIER
AIRMASS. HIGHS ON THE 17TH WERE IN THE MID 70S TO LOWER 80S...
DESPITE GENERALLY CLEAR SKIES AND STRONG MAY SUNSHINE. LOWS
ON THE EARLY MORNING OF THE 18TH WERE IN THE MID 40S TO LOWER
50S ACROSS MOST OF WEST CENTRAL TEXAS.

WITH THE APPROACH OF A COLD FRONT INTO AN UNSTABLE AIRMASS...
SCATTERED SHOWERS AND THUNDERSTORMS OCCURRED THROUGHOUT WEST
CENTRAL TEXAS...FROM THE EVENING OF THE 26TH INTO THE EARLY
MORNING HOURS OF THE 27TH. A COUPLE OF SEVERE STORMS PRODUCED
QUARTER SIZE HAIL 4 MILES SOUTH OF SANTA ANNA (COLEMAN COUNTY)
AND 6 MILES NORTH OF THROCKMORTON. SOME OF THE STORMS CONTAINED
HEAVY RAINFALL...WITH AMOUNTS OF 1 TO 2 INCHES.

ON THE EVENING OF THE 28TH...THE APPROACH OF AN UPPER LEVEL
DISTURBANCE BROUGHT NUMEROUS SHOWERS AND THUNDERSTORMS TO THE
NORTHERN EDWARDS PLATEAU AND NORTHWEST HILL COUNTRY...WITH
SCATTERED COVERAGE FARTHER TO THE NORTH ACROSS THE CONCHO
VALLEY...HEARTLAND...AND INTO THE BIG COUNTRY. SEVERAL STORMS
WERE SEVERE AND PRODUCED NICKEL TO QUARTER SIZE HAIL. THE
QUARTER SIZE HAIL WAS REPORTED AT WINTERS (RUNNELS COUNTY) AND
24 MILES EAST-NORTHEAST OF SONORA (SUTTON COUNTY). WITH ONE OF
THE STORMS...WIND GUSTS TO 60 MPH WERE REPORTED 7 MILES NORTH-
NORTHWEST OF ELDORADO (SCHLEICHER COUNTY). HEAVY RAINFALL
ACCOMPANIED THE STORMS...AND SOME LOCATIONS ACROSS THE
NORTHERN EDWARDS PLATEAU AND NORTHWEST HILL COUNTRY RECEIVED
1 TO 2 INCHES.

SOME SCATTERED SHOWERS AND THUNDERSTORMS OCCURRED ON THE LAST
FEW DAYS OF THE MONTH...BUT NONE OF THE STORMS WERE SEVERE.

$$