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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
531 AM EDT Tue May 19 2026

NCZ006-192000-
RAWS 310801
36.37N  79.29W Elev. 580 ft
531 AM EDT Tue May 19 2026

Date             Tue 05/19/26            Wed 05/20/26            Thu 05/21/26
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                 95          67          96          66          87
TEMP             71 85 94 94 86 76 73 68 70 86 95 95 86 75 71 67 69 81 85 80 71
DEWPT            64 66 60 57 58 58 60 61 62 64 59 57 59 61 63 64 65 66 63 63 60
MAX/MIN RH                   29          79          28          93          47
RH               79 53 32 29 39 54 64 78 76 48 30 28 40 62 76 90 87 60 48 56 68
WIND DIR         SW SW SW  S  S  S SW SW SW SW SW SW  S  S  N  N  N NE NE NE NE
WIND SPD          3  4  5  6  3  3  4  4  4  4  5  6  3  1  0  0  1  3  6 10  9
WIND GUST                                                                 20   
CLOUDS           CL CL CL CL FW FW FW FW FW FW SC SC B1 B1 B1 SC SC SC B2 B2 B2
CLOUDS(%)         2  1  4  4  8  7 23 23 10  8 35 35 66 54 54 39 48 47 87 87 86
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0          20          20          80
RAIN SHWRS                                     IS IS IS IS       IS IS  O  O  O
TSTMS                                             IS IS                SC SC SC
MIX HGT           1  4  7  7 <1 <1 <1 <1  1  3  8  9 <1 <1 <1 <1  2  4  3  3 <1
T WIND DIR       SW SW SW SW  S  S SW SW SW SW SW SW  S NW NE NW  N NE NE NE NE
T WIND SPD        9 11 12 14  8  9  6  6 11  9  9 12  3  8  2  1  5 17 17 14 12
DISPERSION                   VP VP VP VP             VP VP VP VP             PR
ADI              14 53103115  4  4  3  3 16 38 86111  2  4  1  1 13 78 60 47 11
MAX LVORI         4  1  1  1  2  2  3  4  3  1  1  1  2  3  4  7  4  1  1  1  3
STABILITY         A  A  A  B  G  G  F  F  A  A  A  B  F  F  F  G  A  A  C  C  D
CEILING              None  None  None  None  None  None  2200  None  None  1400
STA PRES            29.58 29.50 29.50 29.50 29.48 29.38 29.42 29.43 29.51 29.54


Date          Fri 05/22/26Sat 05/23/26Sun 05/24/26Mon 05/25/26
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       55      74      59      81      63      84      63      84
TEMP          61 58 70 71 64 63 77 76 67 66 81 77 68 66 81 77
DEWPT         58 58 62 61 62 63 68 67 65 66 68 69 67 66 67 67
RH            90100 76 71 93100 74 74 93100 65 76 97100 63 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR           80      50      50      70      60      60      50      60
RAIN SHWRS     O NM SC SC SC SC SC NM NM SC SC NM SC IS IS NM
TSTMS         SC       IS IS       SC IS       SC IS       SC

$$


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