Suppression Forecast
Issued by NWS Sterling, VA

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000
FNUS71 KLWX 231205
FWSLWX

SPOT FORECAST FOR ARCHER KNOB...USFS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
805 AM EDT WED APR 23 2014

FORECAST IS BASED ON IGNITION TIME OF 0815 EDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.DISCUSSION...

GUSTY WINDS AND LOW RELATIVE HUMIDITY WILL ENHANCE THE THREAT FOR
THE SPREAD OF WILDFIRES THROUGH EARLY THIS EVENING. EVEN DRIER
CONDITIONS ARE EXPECTED THURSDAY WITH RELATIVE HUMIDITY DROPPING
TO BETWEEN 15 AND 25 PERCENT ALTHOUGH WINDS WILL BE LIGHTER IN THE
CENTRAL SHENANDOAH VALLEY AND SURROUNDING RIDGES.

A COLD FRONT WILL PASS THROUGH THE AREA FRIDAY...TRIGGERING A FEW
SHOWERS. HOWEVER...RAINFALL AMOUNTS WILL BE LIGHT.

.TODAY...

SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 30
                    MPH.
CWR.................10 PERCENT.
MIXING HEIGHT.......1900-3800 FT AGL...INCREASING TO 4300-6000 FT
                    AGL IN THE LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 18 TO 26 MPH...INCREASING TO 26 TO 28
                    MPH IN THE LATE MORNING AND AFTERNOON.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........16     17     16     11     12
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............44     49     53     55     56
RH..............53     43     34     30     30
20 FT WIND......NW 8   NW 12  NW 14  NW 17  NW 16
20 FT WIND GUST.11     22     24     28     22
CWR.............0      0      0      0      0

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 35.
MAX HUMIDITY........57 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH
                    EARLY IN THE EVENING.
CWR.................0 PERCENT.
MIXING HEIGHT.......3100-4800 FT AGL...DECREASING TO 300-2200 FT
                    AGL IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 20 TO 26 MPH...DECREASING TO AROUND 6
                    MPH.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........10     5      11     20     26     25
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............54     49     45     42     40     38
RH..............34     43     50     54     57     56
20 FT WIND......NW 11  NW 8   NW 6   NW 5   NW 5   NW 5
20 FT WIND GUST.18     14     7      7      7      7
CWR.............0      0      0      0      0      0

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE
                    MORNING...BECOMING LIGHT AND VARIABLE...THEN
                    BECOMING SOUTHWEST 5 TO 6 MPH LATE.
CWR.................0 PERCENT.
MIXING HEIGHT.......300-1700 FT AGL...INCREASING TO 5300-5600 FT
                    AGL.
TRANSPORT WINDS.....WEST 6 TO 9 MPH.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........28     37     39     42     44     52
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............37     43     52     59     63     64
RH..............53     41     29     24     21     21
20 FT WIND......NW 4   NW 3   NW 2   W 2    SW 2   SW 5
20 FT WIND GUST.7      7      7      7      7      11
CWR.............0      0      0      0      0      0

$$
FORECASTER...KLEIN
REQUESTED BY...TOM LEDBETTER
TYPE OF REQUEST...PRESCRIBED
.TAG 20140423.ARCHE.01/LWX






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