EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon Jul 20 2026

VAZ024-202000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
131 PM EDT Mon Jul 20 2026

Date             Mon 07/20/26            Tue 07/21/26            Wed 07/22/26
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                 85          69          88          68          88
TEMP                   82 84 79 73 72 71 73 83 87 85 80 74 72 70 70 80 86 87 79
DEWPT                  68 70 70 70 70 69 71 74 72 72 73 72 70 70 70 72 70 69 68
MAX/MIN RH                   61          95          61         100          54
RH                     63 63 74 90 93 93 93 74 61 65 79 93 93100100 77 59 55 69
WIND DIR               SE SE  S  S  S SW SW SW SW SW SW SW SW SW SW  W  W  W NW
WIND SPD                3  4  4  3  2  2  3  6  9  8  5  4  3  3  3  5  5  5  2
WIND GUST                                               18 13 13 13    16      
CLOUDS                 SC SC B2 B2 B2 B2 SC SC OV B2 OV B2 OV OV B1 B1 SC SC FW
CLOUDS(%)              36 43 75 86 71 73 36 45 89 82 93 78 96 88 58 58 38 30 20
VSBY                   10 10 10  9  6  6  7 10 10 10  4  2  8 10 10 10 10 10 10
POP 12HR                     40          50          50          90          40
RAIN SHWRS                IS SC IS IS IS    IS SC SC SC NM  O  O SC SC IS IS   
TSTMS                     IS SC IS          IS SC SC SC SC IS IS    IS IS IS   
Obvis                              PF PF                                       
MIX HGT                 4  4 <1 <1 <1 <1 <1  4  4  3 <1 <1 <1 <1 <1  3  5  4 <1
T WIND DIR              S  S SE  S  S  S SW  W SW SW SW SW SW SW SW SW SW  W  W
T WIND SPD              4  6 12 10  4  5  6 16 18 20 12  8  6  8 14 20 20 11 13
DISPERSION                   VP VP VP VP             PR VP VP VP             VP
ADI                    26 30  6  5  2  3  8 57 70 71  8  5  5  4 20 71115 60  6
MAX LVORI               2  1  4  7  9  9  8  3  1  1  4  6  9  9  5  3  1  1  3
STABILITY               A  B  F  F  F  F  A  C  C  C  E  E  E  F  B  C  B  A  G
CEILING                    None  2800   700  None  2400   100  2100  None  None
STA PRES                  28.43 28.40 28.37 28.38 28.35 28.32 28.32 28.33 28.35


Date          Thu 07/23/26Fri 07/24/26Sat 07/25/26Sun 07/26/26
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       61      82      58      81      61      82      63      89
TEMP          65 63 80 75 61 61 80 75 64 64 80 76 65 66 87 82
DEWPT         62 59 60 61 58 58 61 62 61 63 65 66 64 66 68 69
RH            90 87 51 62 90 90 52 64 90 97 60 71 97100 53 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC
POP 12HR           10       5       5      10      20      20      20      20
RAIN SHWRS                               IS IS IS IS IS    IS
TSTMS                                          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