National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Fri Mar 13 2026

VAZ046-132000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
132 PM EDT Fri Mar 13 2026

Date             Fri 03/13/26            Sat 03/14/26            Sun 03/15/26
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                 57          41          64          42          64
TEMP                   53 57 55 52 49 45 42 54 61 64 57 50 48 44 43 52 61 64 60
DEWPT                  25 28 30 33 34 32 29 28 28 30 32 33 33 34 35 40 46 50 50
MAX/MIN RH                   31          60          27          72          57
RH                     33 33 38 48 56 60 60 36 28 28 38 52 56 68 73 63 58 60 69
WIND DIR                S SW SW SW  W  W  W  W  W  W SE  E  E  E NE  E SE SE  E
WIND SPD               17 19 16 13 10  8  6  8  5  4  2  3  4  5  5  6  9  9  6
WIND GUST              33 35 31 28 23 19                                  19 18
CLOUDS                 FW CL CL CL FW FW SC B1 B1 SC SC SC FW SC B1 B2 B2 B2 OV
CLOUDS(%)              11  3  3  2 17 25 28 53 60 39 32 30 21 45 64 77 80 76 88
VSBY                   10 10 10 10 10 10 10 10 10 10 10 10 10 10               
POP 12HR                      0           0           0           0          30
RAIN SHWRS                                                             SC SC SC
MIX HGT                 4  4  1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  2  3  3  1
T WIND DIR              S SW SW SW SW  W  W NW  W SW SE SE SE SE SE SE  S SE SE
T WIND SPD             31 37 14 13  9  8 12  9  9  5  2  3  5  6  5  8 11 19 18
DISPERSION                   GD FR FR PR             VP VP VP PR             PR
ADI                    88108 13 12  6  4 10 26 33 22  1  2  3  5  6 15 28 43 12
MAX LVORI               1  1  2  2  2  3  3  2  1  2  2  2  3  3  3  2  2  1  3
STABILITY               D  D  D  D  E  F  C  B  C  C  F  G  F  E  D  D  D  D  E
CEILING                    None  None  None  None  None  None  None  2000  1900
STA PRES                  29.20 29.22 29.32 29.47 29.46 29.51 29.50 29.51 29.39


Date          Mon 03/16/26Tue 03/17/26Wed 03/18/26Thu 03/19/26
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       57      69      32      44      24      48      32      58
TEMP          59 61 68 57 41 33 42 36 29 26 44 41 35 34 55 51
DEWPT         55 59 59 43 24 14 10  6  9 11 11 19 22 24 30 34
RH            87 93 73 59 50 45 26 28 42 52 26 41 59 66 38 52
WIND SPD          <15     15>     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 OV B2 B1 SC FW SC FW FW SC SC SC B1 B1 B1 B2
POP 12HR           80     100      40       5       0       0       5       5
RAIN SHWRS    SC  O  O  O SC                                 
TSTMS            IS IS 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