National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Sat Jul 5 2025

NCZ018-060800-
RAWS 311941
36.22N  81.63W Elev. 3254 ft
832 PM EDT Sat Jul 5 2025

Date           07/05/25      Sun 07/06/25            Mon 07/07/25            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                 58          79          64          83          65
TEMP                64 60 58 62 72 76 75 71 67 65 64 67 76 79 78 74 69 67 65 69
DEWPT               58 55 56 59 61 63 64 64 65 62 61 63 64 64 64 65 64 63 63 64
MIN/MAX RH                   92          64          94          60          91
RH                  81 84 93 90 68 64 69 79 93 90 90 87 66 60 62 74 84 87 93 84
WIND DIR             E NE  N  N  E  E NE  E NW NW NW NW NW NW  W NW NW NW NW NW
WIND SPD             2  1  2  2  5  5  4  2  1  1  2  2  4  5  4  2  2  2  2  2
CLOUDS              SC FW FW FW SC B1 B1 B1 B1 SC FW SC SC B1 FW FW FW FW FW CL
CLOUDS(%)           45 25 17 13 40 57 56 54 52 40 18 30 30 59 23 18 18 13  6  5
VSBY                10  9  8 10 10 10 10 10  9 10 10 10 10 10 10 10            
POP 12HR                      0          30          20          40          10
RAIN SHWRS                         IS SC IS IS       IS IS SC SC             IS
TSTMS                              IS SC                   SC SC               
MIX HGT             <1 <1 <1 <1  3  4  4  1 <1 <1 <1 <1  3  5  5 <1            
T WIND DIR          NE NE NE  E NE NE NE  E  N NW NW NW NW NW NW NW            
T WIND SPD           2  3  3  6  8  8  8  6  1  3  5  6 12 10 11 13            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  2  2  7 27 31 31  3  1  2  3  7 53 43 75  6            
MAX LVORI            5  5  7  5  3  1  3  4  8  7  6  5  1  1  1  3            
STABILITY            G  G  G  A  A  C  C  F  F  G  G  A  A  C  A  G            
CEILING              None  None  None  2300  None  None  None  None  None      
STA PRES            27.01 26.98 26.96 26.90 26.92 26.93 26.96 26.96            


Date           07/08Wed 07/09/25Thu 07/10/25Fri 07/11/25Sat 07/12/25
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       83      66      82      65      79      64      74      64      76
TEMP          80 74 67 68 77 72 66 67 74 70 65 66 74 70 65 66 75 71
DEWPT         65 66 63 64 67 66 65 65 68 66 64 65 67 66 64 64 67 66
RH            60 76 87 87 71 81 97 93 82 87 97 97 79 87 97 93 76 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B1 B2 B2 B1 B1 OV B2 B1 B1 OV B1 B1 B1 B2
POP 12HR           60      20      70      50      80      50      80      40      70
RAIN SHWRS    IS NM IS    SC NM SC IS SC  O SC IS SC  O SC    SC NM
TSTMS            NM IS    SC NM SC    SC  O SC    SC  O SC    SC NM

$$


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