WFO San Angelo Climatology

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1039 AM CDT MON JUN 4 2007

...TEMPERATURES AVERAGED BELOW NORMAL WHILE PRECIPITATION WAS
WELL ABOVE NORMAL IN MAY...

PRECIPITATION FOR THE MONTH WAS WELL ABOVE NORMAL FOR NEARLY
ALL OF WEST CENTRAL TEXAS. THE EXCEPTION WAS IN STERLING COUNTY
AND ACROSS THE NORTHWESTERN BIG COUNTRY. IN THOSE AREAS...THE
AMOUNTS WERE SLIGHTLY BELOW NORMAL. MUCH OF THE AREA SOUTHEAST OF
A LINE FROM CROSS PLAINS TO CHRISTOVAL TO OZONA RECEIVED OVER 5
INCHES OF PRECIPITATION DURING MAY.

A NOTEWORTHY TEMPERATURE RECORD WAS SET AT SAN ANGELO AND
ABILENE IN MAY. FOR BOTH LOCATIONS...A NEW RECORD DATE WAS SET
FOR THE LATEST IN THE YEAR TO FIRST REACH OR EXCEED 90 DEGREES.
IN SAN ANGELO...THE HIGH TEMPERATURE OF 93 ON THE 30TH MARKED
THE FIRST OCCURRENCE OF 90 DEGREES OR GREATER FOR THE YEAR. THIS
SURPASSED THE PREVIOUS DATE OF MAY 28TH...1977 FOR THIS RECORD.
AS OF MAY 31ST...THE TEMPERATURE AT ABILENE HAD NOT REACHED 90
DEGREES YET FOR THE YEAR. THE PREVIOUS DATE FOR THIS RECORD
WAS MAY 31ST...1900. THE NEW RECORD DATE FOR ABILENE WILL BE SET
WHEN A HIGH TEMPERATURE OF 90 DEGREES OR GREATER IS REACHED
(MOST LIKELY TO OCCUR IN EARLY JUNE).

AT ABILENE REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR MAY WAS
70.4 DEGREES. THIS WAS 2.4 DEGREES BELOW THE NORMAL AVERAGE
TEMPERATURE OF 72.8 DEGREES. TOTAL PRECIPITATION FOR MAY WAS 5.63
INCHES. THIS WAS 2.80 INCHES ABOVE THE MONTHLY NORMAL OF 2.83
INCHES.

AT SAN ANGELO REGIONAL AIRPORT...THE AVERAGE TEMPERATURE FOR MAY WAS
70.7 DEGREES. THIS WAS 2.4 DEGREES BELOW THE NORMAL AVERAGE
TEMPERATURE OF 73.1 DEGREES. TOTAL PRECIPITATION FOR MAY WAS 4.74
INCHES. THIS WAS 1.65 INCHES ABOVE THE MONTHLY NORMAL OF 3.09
INCHES.


MAY 2007 WEATHER HIGHLIGHTS...

THE RATHER ACTIVE WEATHER PATTERN FROM LATE APRIL CONTINUED
INTO MAY. CLUSTERS OF THUNDERSTORMS MOVED SOUTHEAST ACROSS
WEST CENTRAL TEXAS DURING THE PREDAWN HOURS OF THE 1ST. VERY
HEAVY RAINFALL CAUSED STREET FLOODING IN BROWNWOOD. THE
FLOODING WAS SIGNIGICANT ENOUGH TO PROMPT WATER RESCUES OF A
FEW PEOPLE FROM THEIR HOMES.

WITH AN UNSTABLE AIRMASS AND A WEAK COLD FRONT DRIFTING SOUTH
ACROSS THE REGION ON THE AFTERNOON OF THE 1ST...A FEW STRONG TO
SEVERE THUNDERSTORMS OCCURRED ACROSS THE HEARTLAND AND NORTHWEST
HILL COUNTRY. ONE STORM PRODUCED A TORNADO 6 MILES EAST OF LOHN
AND 4 MILES NORTH-NORTHWEST OF ROCHELLE (IN MCCULLOCH COUNTY).
GOLFBALL SIZE HAIL WAS REPORTED 10 MILES NORTH OF PONTOTOC
(SOUTHWESTERN SAN SABA COUNTY) WHILE NICKEL SIZE HAIL OCCURRED
IN THE TOWN OF PONTOTOC (NORTHEASTERN MASON COUNTY).

A MORE WIDESPREAD SEVERE WEATHER EVENT OCCURRED ON THE AFTERNOON
OF THE 2ND... AS AN UPPER LEVEL DISTURBANCE APPROACHED TEXAS
FROM NEW MEXICO. A BAND OF THUNDERSTORMS MOVED EAST ACROSS THE
NORTHERN HALF OF WEST CENTRAL TEXAS. SCATTERED STORMS OCCURRED
ACROSS THE SOUTHERN HALF OF THE AREA. SEVERAL TORNADOES WERE
REPORTED...AND THESE WERE A RESULT OF EMBEDDED CIRCULATIONS
WITHIN THE BAND OF STORMS. THE TORNADOES WERE REPORTED 13 MILES
WEST-SOUTHWEST OF STERLING CITY (STERLING COUNTY)...3 MILES
SOUTHWEST OF TENNYSON (COKE COUNTY)...IN MAVERICK (RUNNELS
COUNTY)...NEAR AND JUST SOUTH OF ROCKWOOD (COLEMAN COUNTY)...
3 MILES SOUTH-SOUTHEAST OF WALDRIP (MCCULLOCH COUNTY)...AND NEAR
BROOKESMITH (BROWN COUNTY). ALTHOUGH SOME PROPERTY DAMAGE WAS
REPORTED FROM THE TORNADOES...THERE WERE NO FATALITIES OR
INJURIES. STRONG WIND GUSTS OF 60 TO 80 MPH OCCURRED ALONG
PARTS OF THIS BAND OF STORMS...AND THIS ALSO CAUSED WIND
DAMAGE. IN ALL...A TOTAL OF 28 SEVERE WEATHER REPORTS WERE
RECEIVED FOR THIS EVENT. MUCH OF THE NORTHERN HALF OF WEST
CENTRAL TEXAS RECEIVED BETWEEN ONE HALF INCH AND 1.5 INCHES OF
RAIN FOR THIS EVENT. ACROSS THE SOUTHERN HALF OF THE REGION...
SCATTERED LOCATIONS RECEIVED BETWEEN ONE HALF INCH AND 1.5
INCHES.

** SEVERE WEATHER EVENTS MAY 6TH-9TH **

FROM THE 6TH THROUGH THE 9TH...SEVERAL ROUNDS OF STRONG TO
SEVERE THUNDERSTORMS AFFECTED WEST CENTRAL TEXAS. THIS WAS
CAUSED BY A VERY SLOW-MOVING AND STRONG STORM SYSTEM OVER THE
SOUTHERN ROCKIES...AND A WEAK FRONTAL BOUNDARY WHICH WAS
STALLED ACROSS WEST CENTRAL TEXAS. THE AIRMASS WAS MOIST AND
UNSTABLE DURING THIS TIME ACROSS THE REGION.

A NUMBER OF THE STORMS PRODUCED TORNADOES. ON THE 6TH...
TORNADOS WERE REPORTED 5 MILES EAST OF ROBERT LEE AND 10 MILES
WEST OF MERTZON. ON THE 8TH...TORNADOES WERE REPORTED 11 MILES
WEST-NORTHWEST OF ALBANY...A FEW MILES SOUTHWEST OF HASKELL...
AND 7 MILES NORTHEST OF THROCKMORTON. THE TORNADO SOUTHWEST OF
HASKELL CAUSED SIGNIFICANT DAMAGE TO A HOME...OVERTURNED A
TRACTOR...AND ROLLED A COTTON TRAILER ONTO A ROAD. ON THE 9TH...
TORNADOES WERE REPORTED 11 MILES WEST-NORTHWEST OF SONORA...
8 MILES SOUTH OF THROCKMORTON...AND IN MENARD COUNTY 10 MILES
NORTH-NORTHWEST OF HEXT.

THE MOST SIGNIFICANT LARGE HAIL REPORTS WERE ON THE 6TH...WHEN
SEVERAL STORMS PRODUCED LARGE HAIL TO GOLFBALL SIZE. IN SAN
ANGELO...QUARTER SIZE HAIL WAS REPORTED...WHILE GOLFBALL SIZE
HAIL OCCURRED SEVERAL MILES NORTHWEST OF THE CITY.

IN ADDITION TO THE SEVERE WEATHER...THE VERY HEAVY RAINFALL
FROM THE STORMS CAUSED FLOODING. THE GROUND HAD BEEN SATURATED
FROM RECENT HEAVY RAINFALL ACROSS THE REGION. ON THE 7TH...
FLOODING OF SEVERAL ROADS OCCURRED ACROSS THE SOUTHERN HALF
OF WEST CENTRAL TEXAS. ON THE 8TH...FLOODING CAUSED CLOSURE OF
A ROAD IN HASKELL COUNTY. ON THE 9TH...FLASH FLOODING OF
STREETS AND ROADS OCCURRED IN CROCKETT COUNTY...INCLUDING THE
TOWN OF OZONA. FLOODING TO ROADS ALSO OCCURRED IN CALLAHAN...
MENARD...SCHLEICHER...AND MCCULLOCH COUNTIES.  STREETS WERE
FLOODED IN THE TOWN OF BRADY.

IN ALL...A TOTAL OF 44 REPORTS (SEVERE WEATHER AND FLOODING)
WERE RECEIVED FOR THE SEVERE WEATHER EVENTS FROM THE 6TH-9TH.

RAINFALL TOTALS FROM THE 6TH-9TH OF AT LEAST 1-3 INCHES WERE
WIDESPREAD ACROSS WEST CENTRAL TEXAS. RAINFALL OF 3 TO 6
INCHES OCCURRED ACROSS AREAS OF THE NORTHERN EDWARDS
PLATEAU...AND AT SCATTERED LOCATIONS ACROSS THE CONCHO
VALLEY...NORTHWEST HILL COUNTRY...AND INTO MCCULLOCH AND
COLEMAN COUNTIES.

A COUPLE OF WEAK DISTURBANCES ALOFT MOVED DOWN INTO TEXAS AND
BROUGHT SCATTERED SHOWERS AND THUNDERSTORMS ON THE AFTERNOON
AND EVENING HOURS OF THE 12TH AND 13TH. SCATTERED LOCATIONS
RECEIVED 1 TO 2 INCHES OF RAINFALL. A FEW LOCATIONS RECEIVED
OVER 2 INCHES OF RAIN.

AFTER A COLD FRONTAL PASSAGE ON THE 15TH...A COOL AIRMASS
LINGERED ACROSS THE REGION FOR SEVERAL DAYS. WITH MOSTLY
CLOUDY CONDITIONS...DAILY HIGH TEMPERATURES ACROSS MUCH OF
WEST CENTRAL TEXAS WERE 10 TO 20 DEGREES BELOW NORMAL FOR THE
MIDDLE OF MAY. A FEW RAINSHOWERS AFFECTED THE REGION DURING
THIS TIME.

WITH A MOIST AIRMASS IN THE REGION AND A FEW SLOW-MOVING UPPER
LEVEL DISTURBANCES...NUMEROUS SHOWERS AND THUNDERSTORMS WITH
LOCALLY HEAVY RAINFALL OCCURRED ON THE 24TH AND 27TH. ON
THE 24TH THE HEAVIEST RAIN FELL SOUTHEAST OF A LINE FROM
BROWNWOOD TO BIG LAKE...WHERE SCATTERED LOCATIONS RECEIVED
2 TO 4 INCHES. QUARTER SIZE HAIL WAS REPORTED AT ROWENA FROM
A SEVERE STORM ON THE 24TH. GIVE THE RAINFALL AMOUNTS FOR THE
27TH. RUNOFF FROM THE HEAVY RAIN FROM THE 24TH AND 27TH CAUSED
FLOODING OF ROADS AT WIDELY SCATTERED LOCATIONS.

SCATTERED SHOWERS AND THUNDERSTORMS OCCURRED DURING THE
OVERNIGHT HOURS OF THE 28TH AND 29TH...AS A WEAK DISTURBANCE
ALOFT MOVED ACROSS THE REGION. THE SHOWERS AND STORMS WERE
MOST NUMEROUS ACROSS THE BIG COUNTRY. A COUPLE OF SEVERE
STORMS PRODUCED GOFBALL SIZE HAIL IN GRAPE CREEK AND THE
NORTHERN PART OF SAN ANGELO. THE SHOWERS AND STORMS CONTAINED
HEAVY RAINFALL. AMOUNTS OF 1 TO 2 INCHES OCCURRED AT SCATTERED
LOCATIONS ACROSS THE BIG COUNTRY...AND AT A FEW LOCATIONS
ACROSS CENTRAL AND SOUTHERN PARTS OF WEST CENTRAL TEXAS.

WIDELY SCATTERED THUNDERSTORMS OCCURRED FROM THE EVENING OF
THE 30TH INTO THE POST-MIDNIGHT HOURS OF THE 31ST...IN
ASSOCIATION WITH A WEAK SOUTHWARD-MOVING COLD FRONT. SEVERAL
STORMS IN THE EASTERN BIG COUNTRY AND BROWN COUNTY PRODUCED
LARGE HAIL...RANGING FROM QUARTER TO GOLFBALL SIZE. IN
ADDITION...TREE LIMBS WERE BLOWN DOWN 2 MILES WEST OF
BROWNWOOD. LOCALLY HEAVY RAIN ACCOMPANIED THE STORMS...AND
SOME PARTS OF BROWN COUNTY RECEIVED 1.5 TO 2.5 INCHES.

$$