Climatological Report (Monthly)
Issued by NWS Shreveport, LA

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CXUS54 KSHV 030148 AAA
CLMSHV

CLIMATE REPORT...UPDATED FOR TEXT SUMMARY
NATIONAL WEATHER SERVICE SHREVEPORT LA
850 PM CDT TUE JUN 2 2015

...................................

...THE SHREVEPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             102   05/31/1998
 LOW               39   05/04/2013
HIGHEST            90   05/28
LOWEST             55   05/22
                        05/01
MEAN             74.6             73.2     1.4
DAYS MAX >= 90      1
DAYS MIN <= 32      0

PRECIPITATION (INCHES)
TOTALS          10.97              4.93    6.04
DAYS >= .01        18
DAYS >= .50         6
DAYS >= 1.00        4
GREATEST
 24 HR. TOTAL    4.19   05/17 TO 05/18

DEGREE_DAYS
HEATING TOTAL       0                 7      -7
COOLING TOTAL     305               263      42
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    35/270    DATE  05/30
HIGHEST GUST SPEED/DIRECTION    44/260    DATE  05/30


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     FOG W/VIS <= 1/4 MILE      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

MAY OF 2015 SHOULD MOST CERTAINLY BE REMEMBERED AS A SIGNIFICANT
HISTORIC MAY IN SHREVEPORT AND BOSSIER CITY...LOUISIANA.  THIS MAY
NOW RANKS AS THE FIFTH WETTEST MAY ON RECORD WITH 10.97 INCHES OF
RAINFALL AND THE WETTEST MAY SINCE 2008 THAT TALLIED 11.56 INCHES.
MAY OF 1884 REMAINS THE WETTEST MAY ON RECORD WITH 14.47 INCHES.

SHREVEPORT AND BOSSIER CITY EXPERIENCED SEVERAL ROUNDS OF SEVERE
THUNDERSTORMS AND FLASH FLOODING DURING THE LATTER HALF OF THIS MAY.
DURING MAY 18TH...FLASH FLOODING FROM THREE TO SIX INCHES OF RAIN
DUMPED DURING THE WEE HOURS OF THE MORNING RESULTED IN NUMEROUS
FLOODED STREETS AND EVEN SOME STALLED AND FLOODED CARS IN SOUTH
SHREVEPORT.

ALSO DURING MAY 18TH...SHREVEPORT BROKE A DAILY RAINFALL RECORD WITH
4.18 INCHES.  THE OLD DAILY RECORD FOR MAY 18TH TALLIED 3.42 INCHES
DURING 1942.

DURING MAY 25TH...MEMORIAL DAY...SHREVEPORT AND BOSSIER CITY SAW
TORNADIC THUNDERSTORMS RACE EASTWARD THROUGH SUNSET THAT EVENING. A
LINE OF SEVERE THUNDERSTORMS THAT DEVELOPED ACROSS WEST TEXAS DURING
THE MEMORIAL DAY MORNING MARCHED STEADILY EASTWARD ACROSS CENTRAL
AND EAST TEXAS THROUGHOUT THE DAY.  BY EVENING...THE SQUALL LINE
PRODUCED TORNADIC BOOKEND VORTICE CIRCULATIONS WITH A PERSISTENT
CIRCULATION THAT DEVELOPED IN THE HENDERSON...TEXAS VICINITY.

THIS CIRCULATION THEN PROCEDED TO RACE EASTWARD TOWARDS SOUTH
SHREVEPORT.  THE CIRCULATION DID NOT PRODUCE A TORNADO...BUT IT
RESULTED IN NUMEROUS REPORTS OF WIND DAMAGE ACROSS SOUTH SHREVEPORT.
THIS PARTICULAR CIRCULATION IN THE SQUALL LINE THEN CROSSED THE RED
RIVER AND PRODUCED SOME ADDITIONAL DAMAGE NEAR TAYLORTOWN IN BOSSIER
PARISH BEFORE FINALLY WEAKENING AFTER SUNSET.

DURING MAY 26TH...ANOTHER ROUND OF SEVERE STORMS PRODUCED UPWARDS OF
GOLF BALL SIZE HAIL OVER NORTH AND CENTRAL SHREVEPORT AS WELL
AS NORTH BOSSIER CITY.

ON MAY 30TH...YET ANOTHER ROUND OF SEVERE THUNDERSTORMS PRODUCED
DAMAGING WINDS IN WEST SHREVEPORT THAT DOWNED TREES.  HEAVY RAINFALL
ALSO PRODUCED FLOODED STREETS IN CENTRAL SHREVEPORT ALONG FERN
AVENUE.

OF PARTICULAR NOTE DURING MAY OF 2015 THAT DID NOT OCCUR IN
SHREVEPORT PROPER...BUT DID RACK UP RECORD MAY RAINFALL ACROSS
NUMEROUS AREAS OF SOUTHERN OKLAHOMA AND NORTH TEXAS IN THE RED RIVER
BASIN.  AT MONTH`S END...THE HIGHEST FLOWS AND STAGES SEEN SINCE THE
MAY FLOODS OF 1990 DEVELOPED ON THE RED RIVER AND ITS TRIBUTARIES.
ACCORDINGLY...EXPECT A MAJOR FLOOD WAVE TO ROUTE THROUGH THE RED
RIVER BELOW LAKE TEXOMA AND INTO SHREVEPORT DURING THE FIRST TEN
DAYS OF JUNE.  EXPECT SHREVEPORT TO EASILY RISE AND CREST ABOVE THE
30 FOOT RED RIVER FLOOD STAGE FOR THE FIRST TIME SINCE MAY OF 1990.

FOR THE METEOROLOGICAL SPRING OF 2015 FROM MARCH 1ST THROUGH MAY
31ST...SHREVEPORT RACKED 24.44 INCHES OF RAINFALL FOR THE FIFTH
WETTEST SPRINGTIME ON RECORD.  NORMAL SPRINGTIME RAINFALL IN
SHREVEPORT ONLY AVERAGES 13.26 INCHES.  WE OBSERVED THE WETTEST
SPRING IN SHREVEPORT SINCE THE NOTORIOUS SPRING OF 1991 THAT
RECORDED A WHOPPING 35.44 INCHES THAT ALSO RANKS AS THE ALL TIME
WETTEST SPRING.

THE AVERAGE SPRINGTIME TEMPERATURE IN SHREVEPORT FOR 2015 COMPUTED
TO 66.6 DEGREES...THE NORMAL IS 65.4 DEGREES.

&&

$$


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