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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Sat Apr 18 2026

NCZ006-182000-
RAWS 310801
36.37N  79.29W Elev. 580 ft
631 AM EDT Sat Apr 18 2026

Date             Sat 04/18/26            Sun 04/19/26            Mon 04/20/26
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                 91          53          69          42          67
TEMP             61 82 89 90 83 75 73 72 63 62 62 65 58 50 45 42 45 59 65 67 60
DEWPT            52 56 53 52 53 52 56 56 49 43 36 29 27 26 26 28 29 33 30 25 23
MAX/MIN RH                   27          60          26          56          21
RH               72 41 29 27 36 45 55 57 60 50 38 26 30 39 47 57 53 37 27 20 24
WIND DIR          N  S SW SW  S  S SW NW NW NW  N NW NW NW  W  W  W NW NW NW  N
WIND SPD          0  2  6  6  3  4  4  5 10 10  9  8  4  2  2  2  3  6  9  9  5
WIND GUST                                23 21                                 
CLOUDS           FW SC SC FW SC SC B1 B2 OV OV B2 B1 FW CL CL CL FW FW SC FW CL
CLOUDS(%)        22 28 30 25 37 41 59 79 95 89 82 53 15  4  5  5 13 12 27 12  5
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10               
POP 12HR                      5          20          40           0           0
RAIN SHWRS                               SC SC IS IS                           
MIX HGT          <1  4  8  8 <1 <1 <1 <1  2  3  4  7 <1                        
T WIND DIR        S  S SW SW  S  S SW SW NW NW NW NW NW                        
T WIND SPD        1 10 13 16  5  5  6  4 29 25 21 19 10                        
DISPERSION                   VP VP VP PR             VP VP VP VP             PR
ADI               1 54112138  3  4  5  3 78 83 84146  5                        
MAX LVORI         3  1  1  1  2  2  3  4  1  1  1  1  2                        
STABILITY         A  A  B  B  F  E  E  E  C  C  C  B  F                        
CEILING              None  None  None  4600  4000  None  None                  
STA PRES            29.33 29.24 29.20 29.20 29.41 29.43                        


Date          Tue 04/21/26Wed 04/22/26Thu 04/23/26Fri 04/24/26
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       35      69      48      84      54      84      57      89
TEMP          41 40 65 63 52 52 81 77 61 58 82 77 62 60 86 80
DEWPT         21 23 26 30 30 33 41 43 45 49 50 50 51 51 49 48
RH            44 50 23 29 43 48 24 30 56 72 33 39 67 72 28 33
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    CL CL CL FW FW SC SC FW SC FW FW FW FW FW FW FW
POP 12HR            0       0       0       5       5       5       0       5

$$


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