FNUS71 KRNK 312049
FWSRNK

SPOT FORECAST FOR SANDSTONE RX...NPS
NATIONAL WEATHER SERVICE BLACKSBURG VA
449 PM EDT WED MAR 31 2010

FORECAST IS BASED ON IGNITION TIME OF 1625 EDT ON MARCH 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
...VERY LOW RELATIVE HUMIDITIES AGAIN THURSDAY AFTERNOON...

HIGH PRESSURE WILL BUILD OVER THE REGION INTO FRIDAY. THE HIGH
PRESSURE WILL PROVIDE LIGHT WINDS AND GOOD RELATIVE HUMIDITY
RECOVERY FOR ALL BUT THE RIDGES OVERNIGHT...BUT HUMIDITY LEVELS
WILL ONCE AGAIN DROP INTO THE TEENS TO LOWER 20S ACROSS MUCH OF
THE AREA THURSDAY AFTERNOON. THE HIGH PRESSURE WILL KEEP
THE WEATHER DRY AND UNSEASONABLY WARM INTO SATURDAY. AFTERNOON
RELATIVE HUMIDITIES WILL BEGIN TO IMPROVE SOME...BUT CONTINUE TO
BE LOW FRIDAY AND SATURDAY. A WEAK COLD FRONT IS EXPECTED TO MOVE
THROUGH THE REGION SUNDAY...RAISING THE HUMIDITY LEVELS MORE...
AND COOLING TEMPERATURES CLOSER TO NORMAL.

.TONIGHT...

SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........71 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 6 MPH EARLY IN THE
                    EVENING...BECOMING LIGHT AND VARIABLE.
CWR (0.01 IN).......0 PERCENT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....WEST 3 TO 12 MPH...BECOMING SOUTH 0 TO 2 MPH
                    LATE IN THE EVENING.

TIME (EDT)          6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).............1      4      6      6      6      4
WEATHER COV.........
WEATHER TYPE........NONE   NONE   NONE   NONE   NONE   NONE
TEMP................66     60     56     53     50     48
                    MIN HUMIDITY........27     32     37     44     52     58
WIND (20 FT)........W 5    W 1    S 1    SE 1   E 0    E 1
20 FT WIND GUST.....10
CWR.................0      0      0      0      0      0

.THURSDAY...

SKY/WEATHER.........SUNNY (0-5 PERCENT).
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........LIGHT AND VARIABLE WINDS.
CWR (0.01 IN).......0 PERCENT.
MIXING HEIGHT.......4700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 0 TO 2 MPH...BECOMING NORTHWEST 5 TO
                    6 MPH LATE IN THE MORNING...THEN BECOMING
                    SOUTHWEST 5 TO 10 MPH IN THE AFTERNOON.

TIME (EDT)          6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).............2      0      0      0      0      0
WEATHER COV.........
WEATHER TYPE........NONE   NONE   NONE   NONE   NONE   NONE
TEMP................46     46     57     66     72     76
                    MIN HUMIDITY........65     68     49     36     27     23
WIND (20 FT)........E 2    E 2    N 2    W 2    SW 3   SW 3
20 FT WIND GUST.....5      5      5      5      5      10
CWR.................0      0      0      0      0      0

$$
FORECASTER...SLEIGHTER
REQUESTED BY...PEGGY AINSLIE
TYPE OF REQUEST...PRESCRIBED
.TAG 20100331.SANDS.01/RNK