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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Mon Apr 20 2026

NCZ003-210800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
231 AM EDT Mon Apr 20 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                 39          64          33          70          46
TEMP                      40 43 56 62 62 55 44 38 35 38 54 65 69 64 54 49 46 51
DEWPT                     27 30 34 32 26 23 22 22 21 22 27 32 36 39 38 39 39 41
MIN/MAX RH                   64          24          57          28          76
RH                        59 60 43 32 25 29 41 52 56 52 35 29 30 40 54 68 76 68
WIND DIR                  SW NW NW NW NW  N  N NW NW  N  S  S  S SW SW  W  W  W
WIND SPD                   1  2  8 10  8  3  1  1  1  0  2  3  4  2  1  1  1  2
WIND GUST                       19 23 20                                       
CLOUDS                    CL FW SC FW FW FW CL CL CL CL CL FW FW FW FW FW FW SC
CLOUDS(%)                  5  8 48 14  6  8  4  5  5  5  4 11 14 22 25 23 24 30
VSBY                      10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                      0           0           0           0           0
MIX HGT                   <1  2  6  7  7 <1 <1 <1 <1 <1  3  5  6 <1            
T WIND DIR                 W  W NW  W NW NW  N  N NW  E SW SW SW  S            
T WIND SPD                 3  3 17 27 23 16  5  3  3  1  4  6  8  8            
DISPERSION                VP             VP VP VP VP             VP VP VP VP   
ADI                        2  9110133175  7  3  2  2  1 20 42 55  4            
MAX LVORI                  3  3  1  1  1  2  2  2  3  2  2  1  1  2            
STABILITY                  G  A  B  C  B  G  G  G  G  A  A  A  A  G            
CEILING                    None  None  None  None  None  None  None  None      
STA PRES                  28.25 28.30 28.29 28.36 28.40 28.41 28.30            


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       80      51      82      53      83      56      81      54      73
TEMP          77 72 56 55 80 74 58 57 82 76 60 59 80 73 59 57 72 69
DEWPT         43 45 45 47 48 49 46 47 47 49 48 50 53 55 53 51 54 53
RH            30 38 66 74 33 41 64 69 29 39 64 72 39 53 80 80 53 57
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW FW FW FW SC SC SC B1 B2 B1 B1 B1 B1
POP 12HR           10       5      10       0       5      20      60      50      50
RAIN SHWRS                                     IS SC NM SC SC SC SC
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