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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Thu Apr 16 2026

VAZ018-162000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
1031 AM EDT Thu Apr 16 2026

Date             Thu 04/16/26            Fri 04/17/26            Sat 04/18/26
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                 86          61          82          57          87
TEMP                76 84 84 74 68 65 62 62 72 79 81 73 64 59 57 59 77 84 86 77
DEWPT               49 46 45 47 54 56 56 56 55 50 48 46 47 46 46 48 52 51 52 52
MAX/MIN RH                   24          81          31          70          30
RH                  39 27 26 38 61 73 81 81 55 36 32 38 54 62 67 67 42 32 31 42
WIND DIR             W SW  W  W  W  W  W  W NW NW NW NW NW  W  W SW  S SW SW SW
WIND SPD             9 11 11  5  4  5  4  5  6  6  5  2  1  1  1  1  3  6  6  4
WIND GUST                    20 20 20 19 20 20 19 16                16 19 19 18
CLOUDS              SC FW FW SC B1 B1 B1 SC FW FW FW FW FW SC SC SC SC B1 B1 B2
CLOUDS(%)           31  8 13 35 65 69 62 39 13 11 12 15 21 30 28 31 35 59 61 76
VSBY                10 10 10  7  6  6  7 10 10 10 10 10 10 10 10 10 10  7  7  6
POP 12HR                      5          50          10           5          30
RAIN SHWRS                   IS SC SC SC                               SC SC NM
TSTMS                        IS IS                                           IS
MIX HGT              3  6  7 <1  1 <1 <1  1  4  6  6 <1 <1 <1 <1 <1  3  7  6 <1
T WIND DIR           W SW SW  W  W  W  W NW NW NW NW NW  W  W  W SE SW SW SW SW
T WIND SPD          17 18 21 14 20 14 13 12 20 13 13  6  2  2  1  1 12 14 17 12
DISPERSION                   PR VP PR VP             VP VP VP VP             VP
ADI                 85 74 88  7 14 10  9 17104 97 99  3  1  1  1  1 54114 78  8
MAX LVORI            1  1  1  2  2  3  4  3  1  1  1  2  2  3  4  3  1  1  1  2
STABILITY            B  C  C  F  E  E  E  A  B  B  A  G  G  G  G  A  A  B  C  E
CEILING                    None  7200  1000  None  None  None  None  None  8300
STA PRES                  27.71 27.73 27.74 27.78 27.75 27.78 27.76 27.75 27.67


Date          Sun 04/19/26Mon 04/20/26Tue 04/21/26Wed 04/22/26
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       48      61      37      58      35      71      49      75
TEMP          65 50 58 51 42 39 56 50 38 38 67 63 53 53 73 66
DEWPT         53 43 31 25 23 20 19 18 21 22 30 33 34 38 41 40
RH            65 77 36 36 46 46 23 28 50 52 25 32 48 57 31 38
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 SC FW FW CL FW CL CL FW SC FW FW FW SC
POP 12HR           60      40      10       5       0       0       5      20
RAIN SHWRS    NM NM SC IS                                  IS
TSTMS         IS                                           IS

$$


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