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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
932 PM EDT Sun Apr 19 2026

VAZ018-200800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
932 PM EDT Sun Apr 19 2026

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

MIN/MAX TEMP                 37          56          29          71          52
TEMP                45 43 40 39 45 53 53 46 40 34 31 34 55 66 70 63 55 53 53 56
DEWPT               21 24 29 27 22 19 18 16 18 18 18 20 24 27 33 34 36 38 39 40
MIN/MAX RH                   66          24          60          22          59
RH                  38 47 64 62 40 26 25 29 41 51 58 56 30 23 25 34 49 57 59 55
WIND DIR             W  W NW NW NW NW NW NW NW NW  W  W SW SW  W SW SW  W  W  W
WIND SPD             8  8 10 10  9 12 11  5  2  1  1  1  2  4  4  3  4  5  6  6
WIND GUST                                20             12    16 14 18 19 23 27
CLOUDS              CL FW SC SC FW FW FW FW CL CL CL CL CL FW FW FW SC FW FW SC
CLOUDS(%)            3 15 31 33 16  9  9  6  5  4  5  3  5 11 13 24 27 22 25 44
VSBY                10 10 10 10 10 10 10 10 10 10 10 10  9  9  9  9 10 10  9   
POP 12HR                      0           5           0           0          10
RAIN SHWRS                                                                   IS
MIX HGT             <1 <1 <1  3  5  7  6  2 <1 <1 <1 <1  4  5  6 <1            
T WIND DIR           W  W  W NW NW NW NW NW NW NW  W  S  W  W SW  S            
T WIND SPD           5  8  5 16 20 20 20 18  5  2  2  4  5  9  9  5            
DISPERSION          PR PR FR             PR VP VP VP             VP VP PR PR   
ADI                  4  5  4 57120 97 95  8  3  1  1  5 26 54 64  3            
MAX LVORI            2  2  3  1  1  1  1  2  2  2  2  2  2  1  1  2            
STABILITY            E  E  E  B  B  C  C  F  G  G  G  A  A  A  A  G            
CEILING                    None  None  None  None  None  None  None  None      
STA PRES                  27.87 27.95 27.96 28.01 28.04 28.04 27.91            


Date           04/22Thu 04/23/26Fri 04/24/26Sat 04/25/26Sun 04/26/26
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MAX/MIN TEMP       74      52      81      55      83      59      78      56      71
TEMP          73 67 56 55 79 71 58 58 81 73 62 61 76 68 59 57 70 65
DEWPT         45 45 46 48 48 45 44 46 46 47 47 52 55 52 51 51 52 48
RH            37 45 69 77 34 39 59 64 29 40 58 72 48 57 75 80 53 54
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC FW CL FW FW FW FW B1 SC B1 B1 B2 B1 B1 B1 B1
POP 12HR           30      10      10       5      10      30      60      40      50
RAIN SHWRS    IS SC                            SC SC NM SC SC SC SC
TSTMS                                                SC            

$$


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