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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Tue Apr 28 2026

VAZ046-290800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 PM EDT Tue Apr 28 2026

Date           04/28/26      Wed 04/29/26            Thu 04/30/26            Fri
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          72          51          69          42
TEMP                58 56 54 56 64 66 70 67 60 56 52 53 62 67 68 61 51 46 43 47
DEWPT               54 53 53 55 60 62 62 61 57 53 49 47 44 41 37 36 35 35 35 37
MIN/MAX RH                  100          71          91          32          75
RH                  86 90 96 96 87 87 76 81 90 90 89 80 52 39 32 39 54 65 73 68
WIND DIR             S  S  S  S  S  S  S  W  W NW NW NW NW NW NW NW NW NW  W  W
WIND SPD             5  3  2  3  5  8  8  5  5  6  8  8 10 10 11  6  5  3  3  4
WIND GUST                                      17    18                        
CLOUDS              B1 OV OV OV OV OV B2 B1 B1 B1 B1 SC SC FW FW FW FW SC SC SC
CLOUDS(%)           65 90 95 97 97 88 84 63 57 52 59 36 26 18 12 10 24 32 41 29
VSBY                10  6  4  6  5  3  4  5  5 10 10 10 10 10 10 10            
POP 12HR                     10          90          40           5           5
RAIN SHWRS                   SC NM  O  O SC SC                                 
TSTMS                        SC SC SC SC                                       
MIX HGT             <1 <1 <1 <1  1  2  2 <1 <1 <1 <1  1  5  8  8 <1            
T WIND DIR           S  S  S  S SW  S  S SW  W NW NW NW NW NW NW NW            
T WIND SPD           8  3  3  8  8 16 13 14 11 12 11 17 12 14 17  9            
DISPERSION          PR VP VP             PR PR PR PR             PR PR VP VP   
ADI                  4  2  2  8 13 36 35 10  8  8 10 25 72119 88  4            
MAX LVORI            6  7  8  6  4  4  3  4  5  5  5  3  1  1  1  2            
STABILITY            F  F  F  B  C  C  C  E  E  E  D  B  B  B  C  F            
CEILING              1500 12100  1500   500  None  None  None  None  None      
STA PRES            29.31 29.25 29.17 29.01 29.00 29.06 29.13 29.13            


Date           05/01Sat 05/02/26Sun 05/03/26Mon 05/04/26Tue 05/05/26
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       69      45      61      38      65      41      71      46      75
TEMP          67 62 51 46 57 55 44 43 62 58 46 47 67 64 51 51 72 68
DEWPT         37 40 40 40 40 39 35 35 31 32 34 37 39 40 40 43 45 46
RH            33 44 66 79 53 55 70 73 31 37 63 68 36 41 66 74 38 45
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC B1 B2 B2 B1 SC FW CL FW FW FW FW FW SC SC FW SC
POP 12HR           10      30      40      10       5       5      10      10      20
RAIN SHWRS          IS SC SC SC                               IS IS
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