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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Apr 27 2026

NCZ005-272000-
RAWS 310540
36.38N  79.70W Elev. 858 ft
801 AM EDT Mon Apr 27 2026

Date             Mon 04/27/26            Tue 04/28/26            Wed 04/29/26
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                 71          44          69          53          74
TEMP                60 69 71 65 54 51 46 48 59 65 68 66 58 57 54 57 65 70 73 70
DEWPT               43 41 41 42 43 43 43 44 48 51 52 53 54 54 54 55 60 61 61 61
MAX/MIN RH                   33          94          57         100          68
RH                  53 36 34 43 66 74 89 86 67 60 57 63 86 90100 93 84 73 66 73
WIND DIR            NE NE  E  E SE SE SE  S  S SW SW SW  S SW  S  S  S  S SW SW
WIND SPD             6  6  6  4  4  4  2  2  4  6  6  3  3  3  3  4  6 10 10  6
CLOUDS              FW FW CL SC SC SC SC B2 B2 OV B2 SC SC B1 B1 OV OV OV OV B1
CLOUDS(%)            7 11  5 27 31 48 31 71 83 89 74 41 50 61 62 92 92 98 98 61
VSBY                10 10 10 10 10 10 10 10  9 10 10 10 10 10                  
POP 12HR                      0          10          60          30         100
RAIN SHWRS                               NM NM SC SC       SC SC  O  O  O  O SC
TSTMS                                    IS                            SC SC   
MIX HGT              3  4  4 <1 <1 <1 <1 <1  2  3  4 <1 <1 <1 <1 <1  2  2  3 <1
T WIND DIR          NE NE  E  E  E SE SE  S NE  S SW SW  S SW  S  S  S SW SW  W
T WIND SPD          10  9 10  9  5  5  3 10 11 13 13 11  5  6  5 12 24 25 23 14
DISPERSION                   VP VP VP VP             VP VP VP VP             PR
ADI                 40 42 54  4  3  4  2 12 22 46 49  5  3  3  3 10 60 58 68 10
MAX LVORI            1  1  1  2  3  4  7  5  3  1  1  3  6  6  9  6  4  3  1  3
STABILITY            B  B  B  F  F  E  G  B  C  C  C  F  F  F  F  C  C  C  C  E
CEILING              None  None  None  None  4300  1600  None  2200   800  1700
STA PRES             29.5 29.44 29.48 29.46 29.49 29.37 29.32 29.21 29.07 28.95


Date          Thu 04/30/26Fri 05/01/26Sat 05/02/26Sun 05/03/26
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       52      69      42      70      44      66      40      70
TEMP          59 53 67 63 48 46 67 63 51 47 63 60 46 45 67 63
DEWPT         54 48 39 34 34 35 36 38 41 40 37 34 33 35 33 34
RH            83 83 36 34 58 65 32 39 68 76 38 37 60 68 28 34
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC FW FW SC FW SC B1 B1 B1 SC SC FW FW FW
POP 12HR           40      10      10      20      30      30      10       5
RAIN SHWRS    SC                   IS SC SC SC 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