FNUS74 KHGX 122319
FWSHGX

SPOT FORECAST FOR MARATHON...CITY OF HOUSTON
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
519 PM CST SAT JAN 12 2013

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A COLD FRONT WILL MOVE THROUGH THE RACE SITE BETWEEN 4 AND 6 AM AND
WILL END THE WARM WEATHER. TEMPERATURES PRIOR TO 6 AM WILL BE 58 TO
62 DEGREES AND FOG WITH VISIBILITIES OF LESS THAN 2 MILES WILL BE
POSSIBLE. SHOWERS AND THUNDERSTORMS WITH LIGHTNING WILL ACCOMPANY
THE FRONT AND SHOULD BE PRIMARILY AHEAD OF THE FRONT AND RIGHT
ALONG THE FRONT AS IT MOVES THROUGH SO EXPECT LIGHTING IN AND
AROUND THE SITE BETWEEN 4 AND 6 AM.  SHOWERS AND PATCHY LIGHT RAIN
WILL LINGER IMMEDIATELY IN THE WAKE OF THE FRONT. THEN GRADUALLY
LESSEN IN COVERAGE AND INTENSITY. MOST RAINS SHOULD BE WELL SOUTH
OF THE AREA BY 2 PM.  TEMPERATURES SHOULD FALL TO AROUND 50 AFTER
THE FRONT PASSES AND NORTH WINDS WILL DEVELOP AT 10 TO 15 MPH WITH
GUSTS NEAR 20 MPH. WINDS WILL CHANNEL BETWEEN TALL BUILDINGS AND
MAY REACH 25 MPH WITH HIGHER GUSTS.

.SUNDAY...
TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........CDY CDY CDY CDY CDY CDY MC  MC  MC  MC  MC  MC
WEATHER COV.....LKY LKY LKY LKY LKY LKY ISO ISO ISO ISO ISO ISO
WEATHER TYPE....TRW RW  RW  RW  RW  RA  RA  RA  RA  RA  RA  RA
TEMP............53  52  50  50  51  51  51  52  51  51  49  49
RH..............89  85  82  77  75  73  71  71  69  69  70  66
20FT WIND DIR...N   N   N   N   N   N   N   N   N   N   N   N
20FT WIND (MPH).12  12  13  13  13  13  12  12  12  10  10  9
20FT WIND GUST..20  20  25  25  26  25  23  22  20  15  15  15
CWR.............80  80  80  70  60  50  30  20  20  20  20  20
APPARENT TEMP...52  52  50  49  50  50  51  51  51  51  48  48

.SUNDAY NIGHT...
TIME (CST)      6PM
SKY (%).........MC
WEATHER COV.....ISO
WEATHER TYPE....RW
TEMP............51
RH..............65
20FT WIND DIR...N
20FT WIND (MPH).9
20FT WIND GUST..15
CWR.............10


KEY:
SKY...MC MOSTLY CLOUDY/CDY CLOUDY
WEATHER COVERAGE...ISO ISOLATED/LKY LIKELY
WEATHER TYPE...RW SHOWERS/TRW THUNDERSHOWERS/RA RAIN
TEMP...TEMPERATURE
RH...RELATIVE HUMIDITY
20 FT ABOVE GROUND LEVEL WIND DIRECTION
20 FT WIND MILES PER HOUR
GUST SPEED OF GUSTS
CWR...CHANCE OF WETTING RAIN ACCUMULATIONS OF 0.01" OR MORE.
APPARENT TEMPERATURE...WIND CHILL TEMPERATURE

$$
FORECASTER...PROCHAZKA
REQUESTED BY...ALLEN PORTMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20130113.MARAT.01/HGX