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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Wed May 13 2026

NCZ006-140800-
RAWS 310801
36.37N  79.29W Elev. 580 ft
301 PM EDT Wed May 13 2026

Date           05/13/26      Thu 05/14/26            Fri 05/15/26            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                 52          70          46          78          52
TEMP          79 73 63 59 54 54 63 67 68 63 53 49 46 51 66 75 78 71 59 55 52 57
DEWPT         50 52 54 55 51 48 44 41 41 41 41 41 41 43 43 41 43 48 46 45 45 48
MIN/MAX RH                   91          36          81          27          76
RH            36 48 72 87 90 80 50 39 37 44 64 74 83 74 43 29 29 44 62 69 77 72
WIND DIR      SW SW  W NW NW NW NW NW NW NW NW NW  W  W NW  W  W SW  S SW SW SW
WIND SPD       8  2  1  1  3  8  9  9 10  5  2  2  2  3  5  4  4  1  1  1  1  3
CLOUDS        SC B1 B1 B1 SC CL FW SC SC FW CL FW CL CL CL FW FW SC FW FW FW SC
CLOUDS(%)     29 67 67 54 32  3  6 26 32 11  5  6  3  4  3 17 12 26  9 19 21 33
VSBY          10  7  7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     30           0           0           0           0
RAIN SHWRS       IS IS                                                         
MIX HGT        7 <1 <1 <1 <1  2  5  6  7 <1 <1 <1 <1  1  5  6  6 <1            
T WIND DIR    SW SW SW NW NW NW NW NW NW NW NW  W  W NW NW  W  W SW            
T WIND SPD    13  6  5  5  9 18 16 16 18  8  3  4  5 11 14  9  9  2            
DISPERSION       VP VP VP VP             PR VP VP VP             VP VP VP VP   
ADI          102  3  3  3  4 43 87113135  4  2  2  3 19 93 71 68  1            
MAX LVORI      1  2  3  6  6  3  1  1  1  2  3  3  5  3  1  1  1  2            
STABILITY      B  F  F  F  G  B  B  B  B  F  G  G  G  A  A  A  A  G            
CEILING              5400  None  None  None  None  None  None  None  None      
STA PRES            29.17 29.19 29.25 29.27 29.34 29.38 29.42 29.38            


Date           05/16Sun 05/17/26Mon 05/18/26Tue 05/19/26Wed 05/20/26
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       87      62      89      64      90      65      90      67      90
TEMP          85 81 67 65 88 82 68 67 89 84 70 68 89 83 71 69 88 83
DEWPT         52 56 55 58 58 61 60 62 61 62 61 63 60 62 62 64 61 62
RH            32 42 65 78 36 49 76 84 39 48 73 84 38 49 73 84 40 49
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC SC SC FW FW FW FW FW FW FW FW SC SC SC B1
POP 12HR            0       5       5       5       5       0       5      10      30
RAIN SHWRS                                                       SC
TSTMS                                                            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