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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Fri Apr 17 2026

NCZ003-172000-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
731 AM EDT Fri Apr 17 2026

Date             Fri 04/17/26            Sat 04/18/26            Sun 04/19/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 85          59          88          56          61
TEMP             63 75 82 84 78 68 64 61 62 77 85 87 81 74 70 62 57 57 60 61 55
DEWPT            57 54 51 48 50 50 48 48 50 54 55 54 55 55 54 52 46 40 33 27 24
MAX/MIN RH                   29          66          32          71          27
RH               81 48 34 29 37 52 56 62 65 45 36 32 41 51 57 70 67 53 36 27 30
WIND DIR         NW NW NW NW  W  W  N NE NE  S SW SW SW SW SW NW NW NW NW NW NW
WIND SPD          4  5  5  5  3  3  2  2  2  4  9 10 10 10  8 10 14 12 11 11 12
WIND GUST                                         20             27 26 23 23   
CLOUDS           SC CL FW SC FW FW SC SC FW FW SC B1 B1 B1 B2 B2 OV B2 B1 B1 FW
CLOUDS(%)        45  1  6 39 13 15 33 33 24 24 41 52 51 59 70 79 90 84 64 56  6
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0           5          40          50
RAIN SHWRS                                           IS IS SC SC SC SC SC SC   
MIX HGT          <1  5  8  7 <1 <1 <1 <1 <1  3  7  8 <1 <1 <1  2  3  3  6  7 <1
T WIND DIR        W NW NW NW  W NW  N  N  N SW SW SW SW SW SW  W NW NW NW NW NW
T WIND SPD        5 16 14 12  2  2  2  2  2 11 14 18  8  6  5  3 26 21 25 23 12
DISPERSION                   VP VP VP VP             FR FR PR FR             FR
ADI               6 98137112  1  1  1  1  2 45114 91  7  6  5  4 58 51112107 11
MAX LVORI         4  1  1  1  2  2  3  3  3  1  1  1  2  2  3  3  3  1  1  1  2
STABILITY         A  A  A  A  G  G  G  G  A  A  B  C  D  D  D  D  D  D  C  C  D
CEILING              None  None  None  None  None  None  9100  3600  5000  None
STA PRES            28.97 28.92 28.94 28.93 28.93 28.83 28.79 28.80 28.94 29.00


Date          Mon 04/20/26Tue 04/21/26Wed 04/22/26Thu 04/23/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       41      66      38      70      48      80      52      81
TEMP          44 44 63 59 43 42 66 65 52 51 77 72 57 56 79 74
DEWPT         25 25 26 25 27 23 29 32 35 34 38 39 41 44 46 46
RH            47 47 24 27 53 46 25 29 52 52 24 30 55 64 31 37
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    CL FW FW FW CL FW FW SC FW SC SC SC FW FW FW FW
POP 12HR            5       0       0       0       0       5       5      10

$$


This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.

Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)

DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
     EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
   TYPE...
       RAIN...........Rain
       RAIN SHWRS.....Rain showers
       TSTMS..........Thunderstorms
       DRIZZLE........Drizzle
       SNOW...........Snow
       SNOWSHWRS......Snow showers
       SLEET..........Sleet
       FRZG RAIN......Freezing rain
       FRZG DRZL......Freezing drizzle
   COVERAGE...
       IS.............Isolated
       SC.............Scattered
       NM.............Numerous
       O..............Occasional
       S..............Slight chance
       C..............Chance
       L..............Likely
       WD.............Widespread
       D..............Definite
       AR.............Areas
       PA.............Patchy

MIX HGT(THOUSANDS OF FT AGL)........Mixing height
     Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
     Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure

Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
     Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions