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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Wed Jul 23 2025

NCZ005-240800-
RAWS 310540
36.38N  79.70W Elev. 858 ft
802 PM EDT Wed Jul 23 2025

Date           07/23/25      Thu 07/24/25            Fri 07/25/25            Sat
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                 67          88          70          93          74
TEMP                72 70 67 70 79 85 84 80 74 72 71 75 84 89 90 86 80 78 76 78
DEWPT               66 67 66 68 70 69 69 71 70 70 70 72 74 72 73 73 72 71 72 72
MIN/MAX RH                   97          57          98          52          91
RH                  81 90 97 93 74 59 61 74 87 93 97 90 72 57 58 65 77 79 87 82
WIND DIR             E SE NE NE NE  E  E SE  S SW SW SW  W SW SW SW SW  W  W NW
WIND SPD             2  2  2  3  3  4  3  2  2  2  2  3  4  4  5  2  2  2  2  2
CLOUDS              CL CL FW SC SC FW FW FW FW FW FW CL FW FW FW FW FW FW FW CL
CLOUDS(%)            4  4  9 26 34 21 19 14 10 12  6  4  7 16 17 15 16  9  8  5
VSBY                10 10  9  8 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      0          10           5           5           0
MIX HGT             <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  3  6  6 <1            
T WIND DIR           E SE  E  E  N  S  S  S  S SW SW  W  W  W  W  W            
T WIND SPD           3  6  2  5  0  1  4  6  2  2  3  4  9  5  5  8            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  3  1  6  0  7 28  3  1  1  2  4 39 44 44  4            
MAX LVORI            5  6  8  6  4  3  2  4  6  7 10  6  3  1  1  3            
STABILITY            G  G  G  B  A  A  A  G  G  G  G  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            29.43 29.45 29.47 29.39 29.37 29.36 29.37 29.29            


Date           07/26Sun 07/27/25Mon 07/28/25Tue 07/29/25Wed 07/30/25
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       95      75      95      76      95      73      96      73      96
TEMP          91 87 79 79 92 88 79 79 92 86 77 77 92 87 78 78 93 87
DEWPT         74 73 73 73 73 72 73 73 73 72 71 72 72 71 72 72 72 73
RH            58 63 82 82 54 59 82 82 54 63 82 85 52 59 82 82 51 63
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC FW SC SC FW FW SC FW FW FW SC FW FW FW B1
POP 12HR           10      10      20      10      20      20      20      20      30
RAIN SHWRS                   IS          IS IS       IS IS       SC
TSTMS                        IS          IS IS       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