National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Apr 13 2026

NCZ003-140800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
801 PM EDT Mon Apr 13 2026

Date           04/13/26      Tue 04/14/26            Wed 04/15/26            Thu
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                 55          85          59          89          58
TEMP                65 60 57 59 75 83 84 77 68 62 59 62 79 87 89 81 69 63 59 61
DEWPT               52 51 48 48 53 54 56 57 54 53 50 49 51 51 51 53 51 51 49 50
MIN/MAX RH                   73          37          73          27          71
RH                  63 72 72 67 46 37 38 50 61 72 72 62 38 29 27 38 53 65 69 67
WIND DIR             W NW  W  N  W SW SW SW  W  W NW NW  W SW SW SW  W  W NW NW
WIND SPD             1  1  1  0  2  4  3  2  1  1  1  2  2  3  4  2  1  1  1  1
CLOUDS              FW SC SC SC SC SC SC FW SC SC SC SC FW FW SC SC SC B1 SC B1
CLOUDS(%)           24 46 33 35 38 39 42 14 29 32 28 29 17 25 26 44 43 51 49 51
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      5           5           0           0           0
SPRINKLES                                                                      
MIX HGT             <1 <1 <1 <1  4  7  7 <1 <1 <1 <1 <1  3  7  7 <1            
T WIND DIR          SW  W  W NW  W  W SW SW SW  W NW NW  W SW SW  S            
T WIND SPD           4  2  1  2  8 11  9  6  4  3  3  4  9 10 11  9            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  1  1  2 41 95 73  3  2  2  2  4 41 87 97  4            
MAX LVORI            3  3  4  3  1  1  1  2  3  3  3  3  1  1  1  2            
STABILITY            G  F  G  A  A  A  A  G  G  G  G  A  A  A  A  F            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.30 28.28 28.30 28.24 28.21 28.19 28.19 28.14            


Date           04/16Fri 04/17/26Sat 04/18/26Sun 04/19/26Mon 04/20/26
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       88      58      89      57      91      59      78      40      70
TEMP          86 81 66 62 85 79 62 61 89 82 68 62 74 66 48 42 67 63
DEWPT         52 51 51 54 50 50 49 50 52 53 51 51 46 34 28 26 26 28
RH            31 35 58 75 30 36 62 67 28 37 54 67 37 30 46 53 21 26
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC SC FW FW SC SC SC B1 B1 B1 B2 B1 FW FW FW FW
POP 12HR            0      10       5       0       5      20      40      10       5
RAIN SHWRS                                     IS SC 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