EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Thu Aug 20 2026
MDZ025-210800-
Assateague Island RAWS - Worchester MD
38.08N 75.20W Elev. 12 ft
510 PM EDT Thu Aug 20 2026
Date 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX 72 78 73 80 74
TEMP 78 76 75 74 73 76 78 78 76 74 74 73 74 78 79 79 77 76 75 74 75
DEWPT 75 74 73 72 71 71 71 71 71 72 73 72 73 73 74 73 73 73 73 73 73
MAX/MIN RH 97 79 100 79 97
RH 91 94 94 94 92 84 80 79 85 93 97 98 96 86 85 81 87 92 94 97 94
WIND DIR S SW SW NW N N NE NE E E E E E SE S S S SW SW SW SW
WIND DIR DEG 19 20 23 32 00 00 04 06 07 07 07 07 10 15 19 19 20 21 23 24 24
WIND SPD 14 9 9 8 10 8 8 8 6 5 5 6 5 6 8 8 6 6 6 4 4
CLOUDS B2 B2 B2 B2 B2 B2 B1 SC B1 B1 OV OV OV OV B2 B2 B2 B2 B1 B1 SC
CLOUDS(%) 82 85 72 84 80 72 56 44 67 67 91 93 91 91 78 78 79 71 57 52 48
VSBY 6 6 7 7 7 7 7 7 7 7 4 4 4 4 6 6 7 7 7 7 7
POP 12HR 80 20 90 90 50
QPF 12HR 1.03 0.01 0.35 0.34 0.03
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D L S S S C C D D D D L L C C
TSTMS L C S S S C C S S S S C C C C
MIX HGT 1000 1400 1700 1600 1500 1300 1600 1500 900 1000
T WIND DIR S W N N NE SE E SE S S
T WIND SPD 19 11 11 5 2 4 9 16 18 19
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 22 24 27 13 6 13 20 27 19 28
MAX LVORI 6 6 4 5 10 10 5 4 5 6
STABILITY D E C C E E C C E E
CEILING 4700 1000 1000 1100 6300 1200 1000 1000 6300 1700
PRESSURE 29.90 29.94 30.01 30.02 30.03 30.01 30.01 29.96 29.92 29.86
Date 08/23Mon 08/24/26Tue 08/25/26Wed 08/26/26Thu 08/27/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN 83 70 80 69 80 72 82 75 83
TEMP 82 77 74 72 78 77 74 71 78 77 75 74 80 78 76 76 80 78
DEWPT 72 71 69 66 63 64 66 65 64 66 67 69 69 71 73 73 73 74
MIN/MAX RH 71 87 58 83 60 85 69 94 76
RH 72 81 84 83 61 65 76 81 63 70 78 83 71 79 88 91 81 86
WIND DIR SW W NW NW W W SW N S SW SW N SE S S SW S S
WIND SPD 8 5 6 8 4 4 5 6 5 5 5 5 10 12 13 10 11 11
AVG CLOUDS SC B1 SC FW FW CL FW FW FW SC SC SC FW SC B1 B1 B1 B1
POP 12HR 40 20 5 10 20 20 10 40 40
RAIN SHWRS C S S S C C C C
TSTMS C S S S
$$
VAZ064-210800-
EXPERIMENTAL ONLY...THIS PRODUCT IS FOR PLANNING AND REVIEW PURPOSES ONLY AND
IS NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT
FORECAST.
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 HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
RELATIVE TO DUE NORTH.
EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
VSBY................................VISIBILITY VALUE IN STATUTE MILES
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
O..............OCCASIONAL
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
AF.............VOLCANIC ASHFALL
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISPERSION....................SMOKE DISPERSION CATEGORY
VALUES: VP = VERY POOR; PR = POOR; FR = FAIR; GD = GOOD
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
PRESSURE (INCHES MERCURY)...........STATION PRESSURE
MAX LVORI (INDEX)...................LOW VISIBILITY OCCURRENCE RISK INDEX
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
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 DIR............................20 FT. WIND DIRECTION
WIND SPD(MPH).......................20 FT. WIND SPEED
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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