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

VAZ046-282000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 AM EDT Tue Apr 28 2026

Date             Tue 04/28/26            Wed 04/29/26            Thu 04/30/26
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                 68          52          69          50          69
TEMP                57 63 68 65 58 56 54 55 64 66 69 66 60 57 52 51 62 67 68 61
DEWPT               46 50 52 54 52 52 52 53 59 61 62 61 57 52 48 46 43 40 37 36
MAX/MIN RH                   57          97          80          88          32
RH                  67 62 57 68 80 86 93 93 84 84 78 84 90 83 86 83 50 37 32 39
WIND DIR            SW SW SW  S  S  S  S  S  S  S  S  W  W  W NW NW NW NW NW NW
WIND SPD             5  6  6  3  3  3  2  3  5  8  8  6  6  6  8  9 10 10 10  6
WIND GUST                                               17 17    19       20   
CLOUDS              B2 B2 B1 SC FW SC B1 B2 OV OV OV B1 B1 SC SC FW FW FW FW FW
CLOUDS(%)           85 75 53 42 25 36 68 86 90 99 99 60 59 34 42 23 23 17  8  8
VSBY                10 10 10 10 10  6  8 10 10  6  6 10 10 10 10 10 10 10 10 10
POP 12HR                     60          20         100          40          10
RAIN SHWRS          SC                    O  O  O  O SC SC                     
TSTMS                                       IS IS SC                           
MIX HGT              2  2  3 <1 <1 <1 <1 <1  1  2  2 <1 <1 <1 <1  1  5  8  8 <1
T WIND DIR           S  S SW SW  S  S  S  S  S SE  S  S  W  W NW NW NW NW NW NW
T WIND SPD          14 19 14 10  9  8  6  8 10 12 10 10 18 16 14 20 19 13 14  8
DISPERSION                   VP VP VP VP             PR PR PR PR             PR
ADI                 29 54 47  5  4  4  3  8 19 28 23  7 12  7 13 37120114128  4
MAX LVORI            3  1  1  3  4  6  6  6  4  4  3  4  4  4  4  3  1  1  1  2
STABILITY            C  C  C  F  G  G  F  B  C  C  C  E  E  F  D  B  B  B  B  F
CEILING              4100  None  None   600   700   400  None  None  None  None
STA PRES            29.43 29.34 29.31 29.25 29.15 28.99 29.01 29.11 29.17 29.17


Date          Fri 05/01/26Sat 05/02/26Sun 05/03/26Mon 05/04/26
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       42      70      45      59      39      67      42      74
TEMP          46 47 67 63 51 47 55 54 44 43 64 60 48 47 72 67
DEWPT         35 37 38 40 41 41 42 40 37 35 34 35 36 38 41 44
RH            65 68 34 43 68 79 61 59 76 73 32 39 63 71 33 43
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC B1 B2 B2 B2 B1 SC FW FW FW FW FW FW SC
POP 12HR            5      10      40      40      10       5       5      10
RAIN SHWRS                SC SC SC 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