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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Sun Apr 19 2026

NCZ005-192000-
RAWS 310540
36.38N  79.70W Elev. 858 ft
331 AM EDT Sun Apr 19 2026

Date             Sun 04/19/26            Mon 04/20/26            Tue 04/21/26
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                 65          42          64          36          68
TEMP          66 56 55 63 64 58 48 45 42 45 58 63 63 54 46 41 36 40 55 64 67 63
DEWPT         56 41 38 31 25 22 22 24 25 29 33 30 24 21 21 21 22 23 24 27 29 32
MAX/MIN RH                   22          55          22          57          23
RH            70 57 53 30 22 25 35 43 50 53 39 29 22 27 37 44 56 50 30 24 24 31
WIND DIR      NW NW NW NW NW NW  W  W  W NW NW NW NW NW  N  N NE NE SE SW SW  S
WIND SPD       8 14 12 10 11  5  4  3  4  5  9 11 11  5  5  3  3  2  2  4  6  5
WIND GUST        27 23                                                         
CLOUDS        B2 OV OV B1 FW FW FW FW FW FW FW FW FW CL CL FW FW FW FW FW FW FW
CLOUDS(%)     79 92 94 56 22 11  7  7  7 10 21 14  7  4  5  7  7  7  7 15 13 24
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     40           0           0           0           0
RAIN SHWRS       IS                                                            
MIX HGT       <1  2  3  6  7 <1 <1 <1 <1 <1  6  7  8 <1 <1 <1 <1 <1  4  5  5 <1
T WIND DIR    NW NW  N NW NW NW  W SW SW  W NW  W NW  N  N  N  N  E NW SW SW SW
T WIND SPD     6 31 21 21 20 12  2  3  6  6 11 19 18 13  6  4  3  5  1  6 14  8
DISPERSION    PR             PR VP VP VP             PR PR VP VP             PR
ADI            6 66 49141 97  6  1  2  3  7 73 93 91  6  3  2  2  7  5 43 86  4
MAX LVORI      3  1  1  1  1  2  2  2  2  2  1  1  1  2  2  2  3  2  2  1  1  2
STABILITY      D  D  D  B  C  F  F  G  F  A  B  C  C  F  F  G  G  A  A  A  B  F
CEILING              5000  None  None  None  None  None  None  None  None  None
STA PRES            29.32 29.34 29.43 29.43 29.46 29.44 29.54 29.58 29.60 29.44


Date          Wed 04/22/26Thu 04/23/26Fri 04/24/26Sat 04/25/26
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       49      82      53      84      57      85      60      84
TEMP          54 53 79 74 60 57 81 76 63 60 83 78 66 63 81 74
DEWPT         33 37 41 40 46 48 47 47 45 49 47 46 48 51 52 54
RH            45 54 26 29 60 72 30 36 52 67 28 32 52 65 37 50
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC FW FW FW CL FW SC FW SC SC SC SC SC B1
POP 12HR            0       5       5       5       0       5      10      40
RAIN SHWRS                                              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