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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
432 PM EDT Fri Apr 17 2026

NCZ006-180800-
RAWS 310801
36.37N  79.29W Elev. 580 ft
432 PM EDT Fri Apr 17 2026

Date           04/17/26      Sat 04/18/26            Sun 04/19/26            Mon
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                 58          92          59          66          41
TEMP          87 77 68 63 59 61 82 90 91 81 75 68 65 62 60 60 59 57 50 45 42 45
DEWPT         47 49 51 50 50 52 56 54 51 53 53 55 55 51 45 37 32 30 27 27 28 29
MIN/MAX RH                   76          26          72          35          58
RH            25 37 54 62 72 72 41 30 26 38 46 63 70 67 58 42 36 35 41 49 57 53
WIND DIR      NW NW  W  N  N  N  S SW SW  S  S SW  W NW NW  N NW NW NW NW  W  W
WIND SPD       6  1  1  0  0  0  2  6  8  3  4  4  5  9 10  9  8  4  3  2  2  2
WIND GUST                                            19 23 19                  
CLOUDS        FW FW FW SC SC FW FW SC FW SC B1 B2 B2 OV OV B2 B1 SC CL CL CL FW
CLOUDS(%)     10 13  7 27 32 20 16 41 25 42 57 75 76 93 92 87 59 30  4  3  4 10
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                      0           0          20          60           5
RAIN SHWRS                                     IS IS NM NM SC SC               
MIX HGT        9 <1 <1 <1 <1 <1  4  8  8 <1 <1 <1 <1  2  3  4  7 <1            
T WIND DIR    NW NW SW  S SW  S  S SW SW  S  S SW SW NW NW NW NW NW            
T WIND SPD    10  1  2  2  1  1 10 13 16  5  5  6  4 29 25 21 19 10            
DISPERSION       VP VP VP VP             VP VP VP PR             VP VP VP VP   
ADI           95  1  1  1  1  1 54112138  3  4  5  3 78 83 84146  5            
MAX LVORI      1  2  3  3  4  3  1  1  1  2  2  3  4  1  1  1  1  2            
STABILITY      B  G  G  G  G  A  A  B  B  F  E  E  E  C  C  C  B  F            
CEILING              None  None  None  None 15300  4600  4000 21000  None      
STA PRES            29.33 29.33 29.33 29.24 29.20 29.20 29.41 29.43            


Date           04/20Tue 04/21/26Wed 04/22/26Thu 04/23/26Fri 04/24/26
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       68      36      71      49      85      54      85      56      88
TEMP          66 61 44 41 66 64 54 53 82 76 60 58 83 76 62 59 85 79
DEWPT         28 24 23 22 26 30 34 39 42 45 47 48 49 52 51 52 50 49
RH            24 24 43 46 22 28 46 59 24 33 62 69 31 43 67 78 30 35
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW CL CL FW FW SC SC SC FW SC FW FW FW SC FW FW FW
POP 12HR            0       0       0       0       5       5       5       0      10

$$


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