Suppression Forecast
Issued by NWS Atlanta, GA

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000
FNUS72 KFFC 281007
FWSFFC

SPOT FORECAST FOR ROCKY FLATS...USDA
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
607 AM EDT SAT MAR 28 2015

FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MARCH 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE IS BUILDING INTO THE REGION AND WILL KEEP THINGS
DRY THROUGH SUNDAY EVENING. THIS WILL BRING HUMIDITIES IN THE
29 TO 32 PERCENT RANGE THIS AFTERNOON. MAY SEE RH LEVELS DROP
TO AS LOW AS 26 TO 28 PERCENT FOR A FEW HOURS AT THE COHUTTA RAWS
SITE. EXPECT RELATIVE HUMIDITIES TO RECOVER TONIGHT WITH RH VALUES
GETTING UP INTO THE 60 TO 65 PERCENT RANGE. WINDS WILL BEGIN TO
DIMINISH SHORTLY AFTER SUNSET WITH WINDS GETTING DOWN INTO THE 5 MPH
OR LESS RANGE AFTER 2AM SUNDAY MORNING.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 7 TO 9 MPH.
CWR.................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......200-600 FT AGL...INCREASING TO 3400-4800 FT AGL
                    LATE IN THE MORNING.
TRANSPORT WINDS.....NORTHWEST 6 TO 13 MPH.
DISPERSION INDEX....6...INCREASING TO 40 LATE IN THE MORNING.
LVORI...............2.

TIME (EDT)      11 AM  1 PM   3 PM   5 PM
SKY (%).........25     22     24     23
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............38     43     47     47
RH..............46     36     30     29
20 FT WIND......N 9    NW 9   NW 9   NW 9
20 FT WIND GUST.15     15     15     15
DISPERSION IDX..39     37     42     36
LVORI...........1      1      1      1
CWR.............10     10     10     10

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....AROUND 27.
MAX HUMIDITY........63 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 8 MPH UNTIL EARLY
                    MORNING...BECOMING LIGHT.
CWR.................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......3400 FT AGL...DECREASING TO 0-300 FT AGL EARLY
                    IN THE EVENING.
TRANSPORT WINDS.....NORTHEAST 2 TO 9 MPH.
DISPERSION INDEX....32...DECREASING TO 3.
LVORI...............2.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........16     9      7      5      1      1
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............45     39     34     31     29     29
RH..............31     40     47     54     60     59
20 FT WIND......NW 8   NW 6   N 6    N 6    N 6    NE 3
20 FT WIND GUST.15     10     10     10     10     5
DISPERSION IDX..32     3      3      3      3      2
LVORI...........1      2      2      2      3      3
CWR.............10     0      0      0      0      0

.SUNDAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........LIGHT WINDS...BECOMING SOUTH 5 TO 10 MPH IN THE
                    LATE MORNING AND AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......0-600 FT AGL...INCREASING TO 3500-4200 FT AGL
                    LATE IN THE MORNING.
TRANSPORT WINDS.....SOUTH 2 TO 10 MPH...INCREASING TO 12 TO 14 MPH
                    EARLY IN THE AFTERNOON.
DISPERSION INDEX....4...INCREASING TO 49.
LVORI...............2.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........0      3      3      0      0      0
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............28     27     35     45     54     58
RH..............59     60     45     32     24     24
20 FT WIND......E 2    SE 3   S 6    S 8    S 9    S 10
20 FT WIND GUST.5      5      10     15     15     15
DISPERSION IDX..1      5      7      35     44     52
LVORI...........3      3      2      1      1      1
CWR.............0      0      0      0      0      0

$$
FORECASTER...SMITH
REQUESTED BY...JEFFREY SCHARDT
TYPE OF REQUEST...PRESCRIBED
.TAG 20150328.ROCKY.02/FFC


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