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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Sep 21 2025

NCZ003-220800-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
801 PM EDT Sun Sep 21 2025

Date           09/21/25      Mon 09/22/25            Tue 09/23/25            Wed
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                 60          80          59          84          62
TEMP                67 64 63 63 72 77 79 72 65 62 60 61 73 81 83 74 67 64 63 63
DEWPT               62 62 61 60 64 64 63 63 61 60 59 60 64 63 62 63 63 62 62 62
MIN/MAX RH                   99          59         100          49          99
RH                  84 93 93 90 76 64 58 73 87 93 96 97 73 54 49 69 87 93 97 97
WIND DIR             E  E  N  E SE  S  S SE  S  W  W  W SW SW SW SW  W  W  W  W
WIND SPD             2  1  0  1  2  1  2  1  1  1  1  1  2  4  3  2  1  1  1  2
CLOUDS              SC B1 SC B1 B1 SC SC B1 SC SC FW SC FW FW SC SC SC SC SC SC
CLOUDS(%)           27 53 49 65 66 48 33 55 43 35 25 29 18 23 33 42 34 45 43 50
VSBY                10 10  8  5 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      5          10           0          20           5
RAIN SHWRS                                                 IS IS               
TSTMS                                                      IS IS               
Obvis                     PF                                                   
MIX HGT             <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  2  5  4 <1            
T WIND DIR           E NE  N SE SW  S  S  S  S SW  W  W SW SW SW SW            
T WIND SPD           2  2  1  1  4  5  8  2  1  1  1  1 13 11 10  4            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  1  1  1 12 27 38  1  1  1  1  1 33 64 50  2            
MAX LVORI            5  7  9  8  4  3  1  3  6  8 10  8  3  1  1  3            
STABILITY            G  F  F  C  C  A  B  F  F  G  G  A  B  B  B  F            
CEILING              None  None  1400  None  None  None  None  None  None      
STA PRES            29.07 29.07 29.07 28.98 28.98 28.99 28.99 28.94            


Date           09/24Thu 09/25/25Fri 09/26/25Sat 09/27/25Sun 09/28/25
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       84      65      77      65      74      61      75      59      77
TEMP          82 70 66 65 74 70 66 65 71 68 64 62 73 67 61 60 76 67
DEWPT         65 67 66 65 69 68 66 65 68 67 64 62 64 64 61 60 63 62
RH            56 90100100 84 93100100 90 97100100 73 90100100 64 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B1 B1 SC SC SC SC SC
POP 12HR           30      30      60      70      60      50      30      20      20
RAIN SHWRS       SC SC SC SC NM NM NM SC NM SC SC SC SC IS IS    IS
TSTMS            SC       IS SC SC       IS          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