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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Tue May 19 2026

NCZ006-200800-
RAWS 310801
36.37N  79.29W Elev. 580 ft
731 PM EDT Tue May 19 2026

Date           05/19/26      Wed 05/20/26            Thu 05/21/26            Fri
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                 68          97          67          85          57
TEMP             86 77 73 69 72 86 95 95 88 76 72 67 69 81 85 79 69 62 60 57 57
DEWPT            60 59 60 61 63 64 58 57 59 61 63 64 65 66 63 64 62 60 59 57 57
MIN/MAX RH                   76          28          91          49         100
RH               42 54 64 76 73 48 29 28 38 60 73 90 87 60 48 60 78 93 96100100
WIND DIR          S  S SW SW SW SW SW SW  S  S  S  N  N NE NE NE NE NE NE NE NE
WIND SPD          3  3  4  4  4  4  4  5  3  2  1  0  1  2  4  9  8  4  3  4  4
CLOUDS           CL CL CL CL CL CL CL FW FW SC SC SC SC SC OV OV OV B2 B2 B2 OV
CLOUDS(%)         4  4  4  3  2  2  3  7 12 29 30 26 42 44 90 90 88 86 86 87 89
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  9  3  2  2  3  4
POP 12HR                      0           0          10          80          80
RAIN SHWRS                                                  O  O  O  O NM NM SC
TSTMS                                                      SC SC SC IS         
MIX HGT          <1 <1 <1 <1  1  4  8  9 <1 <1 <1 <1  1  4  5  3  1            
T WIND DIR        S  S SW SW SW NW SW SW  S  S SE  E  E NE NE NE NE            
T WIND SPD        6  6  5  4  6  6  3  9  6  5  2  3  5  4 17 17 13            
DISPERSION       VP VP VP VP             VP VP VP VP             PR VP VP VP   
ADI               3  3  3  2 10 31 33 81  3  3  1  2  9 21 71 50 12            
MAX LVORI         2  2  3  4  3  1  1  1  2  3  3  6  5  2  1  1  4            
STABILITY         G  G  F  F  A  A  A  B  F  G  G  G  A  A  C  C  D            
CEILING              None  None  None  None  None  None  None  1000   700      
STA PRES            29.48 29.48 29.47 29.38 29.40 29.43 29.47 29.49            


Date           05/22Sat 05/23/26Sun 05/24/26Mon 05/25/26Tue 05/26/26
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       70      58      80      63      83      63      83      64      84
TEMP          65 70 62 62 75 75 67 66 81 76 68 66 81 77 69 67 82 78
DEWPT         61 62 61 62 67 68 65 66 69 69 66 66 69 70 66 67 68 69
RH            87 76 97100 76 79 93100 67 79 93100 67 79 90100 63 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 OV B2 OV B2 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2
POP 12HR           40      50      70      50      70      60      70      60      60
RAIN SHWRS    SC SC SC SC SC NM SC SC SC NM NM SC SC NM NM SC SC NM
TSTMS            IS IS       SC SC       SC SC       SC 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