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 AM EDT Sun Mar 22 2026

NCZ003-222000-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
801 AM EDT Sun Mar 22 2026

Date             Sun 03/22/26            Mon 03/23/26            Tue 03/24/26
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                 84          58          68          35          58
TEMP                72 82 83 74 68 66 65 62 65 67 63 55 48 43 39 36 47 55 58 52
DEWPT               58 55 53 55 55 55 55 56 52 43 35 30 28 27 27 26 27 26 27 29
MAX/MIN RH                   34          81          34          67          30
RH                  61 40 36 51 63 68 70 81 63 42 35 38 46 53 62 67 45 32 30 41
WIND DIR             W  W  W  W  W SW SW NW NW NW  N  N  N  N  N  N  E SE SE SE
WIND SPD             2  4  5  2  2  2  4  6 10 10  9  5  3  2  1  1  2  2  3  1
WIND GUST                          12 19 21 23 20 20 18 16                     
CLOUDS              CL FW FW FW FW FW B2 B2 B1 SC FW FW SC B1 SC SC SC SC SC FW
CLOUDS(%)            4 16 15 21  8 20 77 77 57 31 24 19 45 53 46 36 46 44 32 14
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0          10           5           0           0
MIX HGT              2  6  7 <1  1  1  1  1  3  4  4  2  2  2 <1 <1  3  3  4 <1
T WIND DIR           W  W SW SW SW  W  W NW  N  N  N  N  N  N  N  E  E SE SE SE
T WIND SPD          13 12 16  8  6  8 10 10 18 26 25 21 16 11  8  8  5  3  5  6
DISPERSION                   VP VP VP VP             PR VP VP VP             VP
ADI                 42 86120  4  3  4  7 16 42 92 92 10  7  5  4  8 20 14 26  3
MAX LVORI            1  1  1  2  3  3  3  3  1  1  1  2  2  3  3  3  2  2  2  2
STABILITY            B  B  B  G  G  G  E  D  D  C  C  F  F  F  F  A  B  B  B  G
CEILING              None  None  None     0  None  None  None  None  None  None
STA PRES            28.01 27.93 27.90 27.89 28.00 28.15 28.27 28.35 28.39 28.33


Date          Wed 03/25/26Thu 03/26/26Fri 03/27/26Sat 03/28/26
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       37      67      46      76      56      73      37      59
TEMP          40 40 64 61 51 48 72 70 61 59 69 61 45 39 55 51
DEWPT         28 31 38 43 44 45 53 54 52 51 50 40 36 31 30 27
RH            62 70 38 51 77 89 51 57 72 75 51 46 70 73 38 39
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B1 B1 SC SC SC FW SC B1 B2 B2 B1 SC SC
POP 12HR            5       5      20      20      20      40      50      20
RAIN SHWRS                IS IS IS       IS IS SC SC SC 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