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

VAZ046-212000-
RAWS 441101
37.39N  78.80W Elev. 804 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                 81          64          73          56          63
TEMP                75 79 79 74 70 68 66 66 71 71 68 65 63 62 59 57 61 62 62 60
DEWPT               69 69 70 69 67 66 66 66 70 70 68 65 63 62 59 57 61 61 61 60
MAX/MIN RH                   72         100          92         100          98
RH                  82 72 74 84 90 93100100 97 97100100100100100100100 97 97100
WIND DIR            NE NE  E NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
WIND SPD             6  5  5  6  6  4  5  5  6  9 12 13 12 12 14 14 14 14 13 14
WIND GUST                                            25 25 25 26 26 26 26 26 27
CLOUDS              B2 B2 B2 OV OV OV OV B2 B2 OV B2 OV OV B2 B2 B2 B2 B2 OV B2
CLOUDS(%)           75 76 77 96 95 97 94 87 86 88 87 91 88 87 87 80 84 86 88 84
VSBY                10 10  9  5  3  3  3  2  6  3  3  3  3  3  3  6  6  6  6 10
POP 12HR                     30          80          80          80          70
RAIN                                                  D  D  L  L  L  L  L  L  L
RAIN SHWRS             IS    NM NM  O NM SC NM  O NM                           
TSTMS                        SC IS       IS IS IS IS                           
Obvis                              PF PF                                       
MIX HGT              2  3  3  2 <1 <1 <1 <1  1  2  2  1 <1  1  1  1  2  2  2  1
T WIND DIR          NE NE NE NE NE NE NE NE NE NE  N NE NE NE NE  N  N  N  N  N
T WIND SPD          10  6 10 10  9  3  4  9 11 12 16 16 16 16 16 17 19 18 19 18
DISPERSION                   PR PR VP PR             FR FR FR GD             GD
ADI                 19 16 23  7  6  2  3 10 17 21 27 14 14 14 14 26 34 36 39 21
MAX LVORI            3  3  3  4  6  8  9  7  5  5  4  5  5  5  5  4  4  4  4  5
STABILITY            D  D  D  E  E  E  E  D  D  D  D  D  D  D  D  D  D  D  D  D
CEILING               400  1100  1000   400   400   400   500   500   500   500
STA PRES            29.32 29.29 29.33 29.34 29.39 29.39 29.45 29.47 29.53 29.53


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       53      62      50      69      49      72      51      74
TEMP          58 55 61 57 53 52 66 59 52 51 69 62 53 52 72 64
DEWPT         58 54 59 56 53 50 52 51 47 47 51 53 50 49 55 57
RH           100 96 93 96100 93 61 75 83 86 53 72 89 89 55 78
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B1 SC SC SC FW SC FW FW FW SC FW SC
POP 12HR           70      40       5       5       5       5       5       5
RAIN           L  C  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