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

VAZ024-192000-
RAWS 441631
37.63N  79.51W Elev. 865 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                 96          67          94          63          76
TEMP             69 86 94 94 85 78 72 68 70 88 94 91 81 74 70 66 64 71 74 71 65
DEWPT            60 63 60 61 60 57 55 55 58 63 60 62 64 65 64 64 63 64 62 60 56
MAX/MIN RH                   33          69          33          96          65
RH               73 46 32 34 43 48 55 63 66 43 32 38 56 74 81 93 97 79 66 68 73
WIND DIR          N  W SW SW SW SW SW SW  W  W  W  W NW  N  N  N NE  E  E  E  E
WIND SPD          0  2  4  5  3  3  2  1  1  3  5  5  2  1  0  1  2  3  4  4  4
WIND GUST                    13                                              14
CLOUDS           SC SC SC SC SC SC B1 SC FW FW B1 B1 B1 B1 B2 B2 OV OV B2 B2 OV
CLOUDS(%)        37 29 31 42 45 36 54 28 16 11 61 61 67 67 77 77 92 92 85 85 90
VSBY             10 10 10 10 10 10 10 10 10 10 10 10  9  8  6  1  2  8  8  8 10
POP 12HR                      5           5          40          70          90
RAIN SHWRS                                     SC SC SC SC NM NM  O  O  O  O  O
TSTMS                                          SC SC SC IS             IS IS IS
MIX HGT          <1  4  7  7 <1 <1 <1 <1 <1  4  8  5 <1 <1 <1 <1  1  1  2  2  1
T WIND DIR        W  W SW SW  S  S SW  W SW  W  W  W NW  N  N  N NE NE NE NE NE
T WIND SPD        2  8 11 12  5  6  4  3  2 17 11 10  3  2  3  4  9 11 11  8  6
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI               2 42 99107  3  3  2  2  2 97 58 42  2  1  2  2 15 22 26 17  5
MAX LVORI         3  1  1  1  2  2  3  3  3  1  1  1  3  3  5  6  5  3  3  3  3
STABILITY         A  A  A  A  F  G  F  G  A  A  C  C  F  F  F  F  B  B  C  C  E
CEILING              None  None  None  None  None  5000  1500  1400  2600  1400
STA PRES            28.69 28.63 28.60 28.60 28.60 28.54 28.58 28.60 28.68 28.69


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       53      67      55      75      61      82      62      82
TEMP          59 55 64 64 60 58 71 72 66 63 80 76 67 64 80 76
DEWPT         54 54 58 55 56 57 63 64 62 62 66 67 64 63 66 66
RH            83 96 81 73 87 96 76 76 87 97 62 74 90 97 62 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR           90      80      70      80      60      70      40      60
RAIN SHWRS     O  O  O SC NM SC SC  O NM IS SC NM SC IS SC NM
TSTMS         IS       SC          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