National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Thu May 7 2026

NCZ001-080800-
RAWS 310142
36.40N  81.46W Elev. 4608 ft
731 PM EDT Thu May 7 2026

Date           05/07/26      Fri 05/08/26            Sat 05/09/26            Sun
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                 37          59          45          64          50
TEMP             48 45 41 38 41 49 57 57 52 47 46 46 49 55 61 62 58 53 52 51 54
DEWPT            41 38 33 31 31 31 32 34 38 39 40 41 42 43 45 46 48 48 48 48 49
MIN/MAX RH                   86          39          83          54          89
RH               77 76 73 76 67 50 38 42 59 74 79 83 77 64 56 56 69 83 86 89 83
WIND DIR         NW NW NW NW NW NW SW SW  S SW SW  W  W  W  W  W  W  W  W  W  W
WIND SPD         16 16 13 12  9  3  6  8  8  9  9  9  9 13 13 14 10  9 10 10  8
CLOUDS           SC FW CL CL CL CL CL FW FW SC FW B1 B1 SC SC FW FW SC SC SC SC
CLOUDS(%)        33  6  3  3  2  2  4 17 23 27 19 61 57 34 28 22 25 26 45 37 46
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  0      
POP 12HR                      0           0           0           5           0
MIX HGT           2 <1 <1 <1 <1  3  6  5 <1 <1 <1 <1  1  4  6  5  1            
T WIND DIR       NW NW NW NW NW NW SW SW  S  S  S SW  W  W  W  W  W            
T WIND SPD       18 12 10  6  8  3  6 11 12  8  6  6 24 24 26 21 16            
DISPERSION       GD GD FR FR             PR PR PR PR             FR PR FR FR   
ADI              25 11  9  6  8 15 44 69  8  5  5  6 43 87114 89 11            
MAX LVORI         3  4  3  4  3  2  1  1  3  3  4  4  3  1  1  1  3            
STABILITY         D  D  D  D  B  A  B  B  E  E  E  D  C  C  C  C  E            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            26.60 26.64 26.68 26.61 26.60 26.55 26.57 26.57            


Date           05/10Mon 05/11/26Tue 05/12/26Wed 05/13/26Thu 05/14/26
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       67      49      57      38      58      46      61      47      62
TEMP          66 61 56 53 54 50 40 41 56 52 47 49 58 56 50 48 60 57
DEWPT         48 51 49 47 43 35 33 33 34 37 38 40 45 46 45 44 44 45
RH            52 70 77 80 66 56 76 73 43 56 71 71 62 69 83 86 55 64
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 SC B2 B1 SC FW FW CL FW SC SC B1 B1 SC SC SC SC
POP 12HR           30      40      30       0       5      20      40      30      20
RAIN SHWRS       SC IS SC SC                   IS SC SC SC       IS
TSTMS            IS                                  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