National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Sat Apr 11 2026

NCZ003-120800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
431 PM EDT Sat Apr 11 2026

Date           04/11/26      Sun 04/12/26            Mon 04/13/26            Tue
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                 50          77          54          81          55
TEMP          78 70 62 57 53 53 63 73 77 72 64 61 57 57 71 79 81 75 65 59 55 58
DEWPT         51 53 50 48 48 49 52 54 52 52 49 49 49 50 53 52 51 51 50 49 48 48
MIN/MAX RH                   90          41          80          35          75
RH            39 55 65 72 83 86 67 51 42 49 58 65 75 77 53 39 35 43 58 69 77 69
WIND DIR       N  N  N  N NE  E SE  S  S  S SW  S SW SW SW SW SW SW SW  W  W  W
WIND SPD       2  1  1  1  1  1  2  4  5  2  2  2  2  2  5  6  6  2  1  1  1  1
WIND GUST                                                  17    12            
CLOUDS        SC SC FW CL SC B1 B1 FW FW SC SC B1 B1 SC B1 B1 B1 B1 SC FW FW SC
CLOUDS(%)     33 34 15  5 42 65 56 16 19 34 47 60 53 50 51 55 66 56 32 20 23 38
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      5           5           0           5           5
MIX HGT        7 <1 <1 <1 <1  1  2  3  5 <1 <1 <1  1  1  3  7  7 <1            
T WIND DIR    NW NE NE NE  E  E SE  S  S  S SW SW SW SW SW SW SW SW            
T WIND SPD     5  2  4  3  6  9  6  5  9  8  4  2  9  8 13 14 13 11            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           49  1  2  2  3 18 20 24 55  4  2  1  4 11 53109102  5            
MAX LVORI      1  2  3  3  5  4  3  2  1  2  3  3  4  4  1  1  1  2            
STABILITY      A  G  G  G  F  B  B  A  A  G  F  F  F  A  A  B  B  F            
CEILING              None  None  None  None  None  None  None 10700  None      
STA PRES            28.39 28.43 28.51 28.44 28.43 28.40 28.39 28.32            


Date           04/14Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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       86      57      90      58      90      60      88      59      89
TEMP          85 79 63 61 88 81 66 63 87 81 65 62 86 79 65 62 87 81
DEWPT         54 55 52 50 51 50 50 49 52 52 52 54 55 55 54 55 58 55
RH            35 44 67 67 28 34 56 60 30 37 63 75 35 44 68 78 38 41
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC SC B1 SC SC B1 SC SC SC SC SC SC SC B1
POP 12HR            5       0       0       0       5      10      10       5      30
RAIN SHWRS                                                       SC
TSTMS                                                            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