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

VAZ018-290800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
431 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                 57          72          48          63          42
TEMP          70 65 59 58 57 58 64 68 71 64 56 53 50 49 57 62 61 53 47 44 43 46
DEWPT         55 54 54 53 53 55 59 60 59 55 50 46 44 42 40 36 34 32 32 31 32 34
MIN/MAX RH                   89          66          81          35          67
RH            59 68 83 83 86 90 84 76 66 73 80 77 80 77 53 38 36 44 56 60 65 63
WIND DIR       W  W NW  W SW  S  S  S  W NW NW NW NW NW NW NW NW NW NW  W  W  W
WIND SPD       4  2  1  1  1  2  3  5  6  8  8  6  8 10 10 10  9  6  4  3  3  4
WIND GUST                       14 16 20 27 26 25 25 29 29 26 26 24 18 14 16 18
CLOUDS        B1 B1 B1 B2 B2 B2 OV B2 B2 B1 B1 B1 B1 B1 SC SC FW FW SC SC SC SC
CLOUDS(%)     51 57 69 77 83 87 94 83 70 62 62 57 59 55 28 32 23 17 28 28 44 33
VSBY          10 10  9  2  1  2  5  5  5  6  4 10 10 10 10  9  9  9            
POP 12HR                     50         100          40          10           5
RAIN SHWRS                IS  O  O NM NM SC SC                                 
TSTMS                     IS IS IS SC SC                                       
MIX HGT        3 <1 <1 <1 <1 <1  1  2  3  1  1 <1 <1  2  5  6  6  1            
T WIND DIR    SW SE SE  S  S SW  S  S SW  W NW NW NW NW NW NW NW NW            
T WIND SPD     5  4  2  2  2  3 11 13 16 17 19 19 19 17 18 18 21 23            
DISPERSION       VP VP VP VP             PR PR PR PR             PR VP VP VP   
ADI           20  2  1  1  1  4 19 32 49 15 18 13 18 46102129150 10            
MAX LVORI      2  3  5  5  5  6  4  3  1  3  3  4  3  3  1  1  1  2            
STABILITY      C  F  F  F  F  B  B  C  C  D  D  E  D  C  B  B  B  F            
CEILING              1500   600   500  1300  2000  1200  None  None  None      
STA PRES            27.77 27.71 27.61 27.49 27.53 27.56 27.64 27.65            


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       67      44      59      36      62      40      66      46      71
TEMP          65 56 46 46 56 51 40 40 59 54 43 45 64 59 49 48 68 63
DEWPT         35 35 35 35 34 30 28 29 29 30 31 33 38 38 37 40 42 43
RH            33 45 65 65 43 44 62 64 32 40 62 62 38 45 63 74 39 48
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B2 B2 B1 SC FW FW FW FW FW FW SC SC SC SC B1
POP 12HR           20      30      30      10       5      10      20      20      30
RAIN SHWRS       IS IS SC SC IS                      IS IS IS IS SC
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