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

VAZ018-282000-
RAWS 444002
37.56N  80.18W Elev. 2702 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                 69          56          71          48          63
TEMP                56 63 68 64 59 58 56 57 63 67 70 63 56 51 48 49 56 60 62 55
DEWPT               51 54 56 55 53 52 52 54 58 59 59 54 49 45 42 41 41 36 34 32
MAX/MIN RH                   63          92          70          79          34
RH                  83 72 65 73 80 80 86 90 84 75 68 72 77 80 80 74 57 41 35 41
WIND DIR             S SW SW NW  W  W SW  E SE  S  W  W NW NW NW NW NW NW NW NW
WIND SPD             4  4  3  2  1  1  1  2  3  5  6  8  8  8  8 10 10 10 10  6
WIND GUST           16                      14 16 19 26 27 25 26 31 31 27 26 23
CLOUDS              B2 OV B1 B1 B1 B2 B2 OV OV OV OV B1 B1 B1 B1 B1 SC SC FW FW
CLOUDS(%)           85 90 62 51 55 75 85 96 96100100 61 61 55 63 51 34 30 20 13
VSBY                 6 10 10  9  7  2  2  5  5  5  8 10 10 10 10 10 10 10 10 10
POP 12HR                     80          60         100          40          10
RAIN SHWRS                IS          IS  O  O  O  O SC SC                     
TSTMS                     IS          IS IS IS SC SC                           
MIX HGT              1  2  3 <1 <1 <1 <1 <1 <1  2  2  1 <1  1 <1  2  5  6  6  1
T WIND DIR           S  S  W  S  S  S  W SE SE SE  S  W NW NW NW NW NW NW NW NW
T WIND SPD          11 12 10  4  2  2  1  3  6 10  6 39 26 21 25 25 23 17 20 19
DISPERSION                   VP VP VP VP             PR PR PR PR             PR
ADI                 16 30 34  2  1  1  1  4  9 18 15 44 24 20 23 69131116136  9
MAX LVORI            4  3  3  3  5  5  6  6  4  3  3  3  3  3  3  3  1  1  1  2
STABILITY            C  C  B  F  F  F  F  B  B  D  D  D  D  D  D  C  B  B  B  F
CEILING                 0  1600 14300  1900   600   400  1500  1200  None  None
STA PRES            27.83 27.77 27.77 27.70 27.59 27.48 27.56 27.61 27.66 27.67


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      67      45      58      37      63      42      71
TEMP          45 46 63 56 46 45 54 51 41 41 60 56 46 47 69 61
DEWPT         32 34 35 35 36 37 37 31 29 31 30 31 32 35 38 41
RH            60 63 35 45 68 73 52 46 62 67 32 38 58 63 32 48
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC B1 B1 B1 B2 B1 FW FW FW FW FW FW FW SC
POP 12HR            5      20      40      40      10       5       5      20
RAIN SHWRS             IS IS 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