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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Fri Apr 25 2025

NCZ018-260800-
RAWS 311941
36.22N  81.63W Elev. 3254 ft
131 AM EDT Fri Apr 25 2025

Date           04/24/25      Fri 04/25/25            Sat 04/26/25            Sun
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                 55          63          55          69          45
TEMP                   57 56 56 60 62 63 60 58 56 57 58 64 67 67 62 56 52 48 46
DEWPT                  54 54 54 55 56 56 56 54 54 53 55 56 55 55 53 50 47 43 40
MIN/MAX RH                   94          77          93          66          85
RH                     90 93 93 84 81 78 87 86 93 86 90 75 65 65 72 80 83 83 79
WIND DIR               SE SE  S  S  S  S SW SW  W  W  W  W  W NW NW NW NW NW NW
WIND SPD                2  1  2  4  6  6  4  2  2  2  5  8 10 10  5  5  5  4  5
WIND GUST                                         12 16 18       18 17 16 14   
CLOUDS                 B2 OV OV OV OV OV B2 B2 B1 B2 B1 B1 B1 B1 B1 SC SC SC SC
CLOUDS(%)              86 99 98 99 98 95 81 72 65 76 67 65 65 60 52 40 32 40 27
VSBY                    2  2  1  7  9  9  7  6  8  7  6  6  6 10 10 10 10 10 10
POP 12HR                     50          70          70          60          10
RAIN                    C  C  C                                                
RAIN SHWRS                      SC NM NM NM NM NM SC NM NM SC                  
TSTMS                           IS IS IS SC             SC IS                  
Obvis                   F  F PF                                                
MIX HGT                <1 <1 <1  1  2  2 <1 <1 <1 <1  1  2  3  3  1            
T WIND DIR              S  S  S SW SW  S  S SW SW SW NW NW NW NW NW            
T WIND SPD             12  6 14 13 11 16 12 10  9  4 16 23 19 21 21            
DISPERSION             VP VP             VP VP VP VP             PR PR PR VP   
ADI                     6  3 16 19 24 34  8  5  4  2 23 62 65 66 15            
MAX LVORI               6  8  5  4  3  3  5  6  6  6  4  3  1  1  3            
STABILITY               F  F  B  C  C  C  E  F  F  F  C  C  C  C  E            
CEILING                     300   300   200   200   100   100   500  None      
STA PRES                  27.05 27.05 26.98 26.95 26.90 26.92 26.93            


Date           04/27Mon 04/28/25Tue 04/29/25Wed 04/30/25Thu 05/01/25
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       67      45      70      50      75      57      75      57      73
TEMP          65 59 48 49 67 62 53 55 71 67 60 60 74 65 59 59 71 64
DEWPT         34 39 38 39 44 45 46 50 54 56 55 55 55 55 54 54 55 55
RH            31 47 68 68 43 54 77 83 55 68 84 84 51 70 83 83 57 73
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW FW FW SC B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR            0       0       0       0      20      10      40      30      60
RAIN SHWRS                               IS       IS NM SC IS SC NM
TSTMS                                                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