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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Sep 21 2026

NCZ005-212000-
RAWS 310540
36.38N  79.70W Elev. 858 ft
801 AM EDT Mon Sep 21 2026

Date             Mon 09/21/26            Tue 09/22/26            Wed 09/23/26
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                 89          67          80          58          65
TEMP                80 86 87 80 75 72 70 68 75 79 76 70 66 65 62 59 63 63 63 62
DEWPT               70 69 70 71 70 70 69 68 71 72 70 68 66 65 62 59 63 63 63 62
MAX/MIN RH                   56         100          78         100          99
RH                  72 57 57 74 84 93 97100 87 79 82 93100100100100100100100100
WIND DIR            NE  E  E NE  E NE NE NE  E NE NE NE NE NE NE NE NE NE NE NE
WIND SPD             3  2  2  3  3  2  2  3  3  5  8 10  8  8 10 11 11 12 12 11
WIND GUST                                                           21 23 23   
CLOUDS              FW B1 B1 B2 OV OV OV B2 OV B2 OV OV OV B2 OV B2 OV B2 B2 B2
CLOUDS(%)           23 59 64 85 88 91 90 84 90 87 91 92 92 87 89 83 89 84 81 86
VSBY                10 10 10  7  5  5  4  5  8  3  3  3  3  6  6  6  6  6  6 10
POP 12HR                     40          70          80          90          70
RAIN                                                  D  D  L  L  L  L  L  L  L
RAIN SHWRS             IS SC NM NM SC SC SC SC  O NM                           
TSTMS                  IS SC SC IS          IS SC SC                           
Obvis                              PF PF                                       
MIX HGT              2  4  3 <1 <1 <1  1 <1  1  2  2  1  1  1  1  2  2  2  2  1
T WIND DIR           N  S  E NE NE  N  E NE NE NE NE  N  N  N NE  N  N  N  N  N
T WIND SPD           0  2  8 11 10  3  8  4  6  4 12 14 12 13 14 14 17 19 17 18
DISPERSION                   VP VP VP VP             FR PR PR FR             FR
ADI                  0  9 28  5  5  2  4  4 12  9 22 17 14 15 17 25 31 40 35 16
MAX LVORI            4  2  2  4  5  7  8  9  5  4  3  5  5  5  5  4  4  4  4  5
STABILITY            B  C  C  F  F  F  F  C  C  D  D  D  D  D  D  D  D  D  D  D
CEILING              None  2900   400   400   400  3100   500   500   500   500
STA PRES            29.25 29.21 29.28 29.29 29.32 29.32 29.38 29.39 29.46 29.47


Date          Thu 09/24/26Fri 09/25/26Sat 09/26/26Sun 09/27/26
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       54      63      51      69      49      73      50      74
TEMP          60 55 62 58 54 52 67 63 53 51 71 65 54 51 73 66
DEWPT         60 55 61 58 54 51 55 54 49 47 51 52 49 49 53 56
RH           100100 97100100 96 65 72 86 86 49 63 83 93 49 70
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B1 SC FW FW FW FW FW FW FW SC FW SC
POP 12HR           70      40       5       5       5       5       0       5
RAIN           L  L  C                                       
RAIN SHWRS             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