EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Wed Aug 19 2026
MDZ025-200800-
Assateague Island RAWS - Worchester MD
38.08N 75.20W Elev. 12 ft
510 PM EDT Wed Aug 19 2026
Date 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat
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 76 82 73 79 73
TEMP 78 77 77 77 77 80 81 81 78 75 74 73 74 77 79 79 77 75 74 73 74
DEWPT 72 72 73 73 74 75 75 75 75 74 73 73 72 72 72 72 72 73 73 72 72
MAX/MIN RH 90 79 100 79 100
RH 82 85 87 89 93 86 82 82 90 97 97 99 93 85 79 79 85 94 97 98 93
WIND DIR S S SW SW SW S S S S SW SW NW N N NE E NE E S SW S
WIND DIR DEG 17 20 21 22 21 18 18 18 19 20 22 32 00 02 05 08 06 09 17 20 15
WIND SPD 4 5 8 6 5 9 13 12 11 9 9 6 9 9 10 10 8 6 5 6 6
CLOUDS CL FW FW SC SC SC SC B1 B2 B2 B2 OV B2 B1 B1 B1 B2 B2 OV OV B2
CLOUDS(%) 3 16 19 31 39 42 45 67 87 87 79 90 86 68 57 61 73 82 90 90 81
VSBY 7 7 7 7 7 7 7 4 4 4 7 7 7 7 7 7 4 4 4 4 6
POP 12HR 5 70 80 40 80
QPF 12HR 0 0.22 0.46 0.04 0.66
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C L D L C S C C L L D D L
TSTMS S C L C C S S C C S S C S C
MIX HGT 400 500 700 700 900 1400 1900 1800 1500 1200
T WIND DIR SW SW S S S W N N S S
T WIND SPD 6 8 10 13 21 14 9 4 4 6
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 6 8 18 21 25 21 24 17 6 14
MAX LVORI 6 6 6 6 6 8 4 5 8 9
STABILITY F F B D D E C D E E
CEILING 30000 4000 5800 7500 6300 1000 300 1700 1700 300
PRESSURE 29.92 29.93 29.98 29.94 29.98 29.95 30.01 30.0 30.0 30.0
Date 08/22Sun 08/23/26Mon 08/24/26Tue 08/25/26Wed 08/26/26
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 80 73 83 71 81 71 81 72 82
TEMP 79 77 75 75 81 77 75 72 80 76 74 72 79 76 74 74 81 77
DEWPT 73 73 73 73 72 72 71 69 66 67 67 67 66 67 68 69 69 70
MIN/MAX RH 79 98 74 92 62 86 64 85 69
RH 82 91 92 96 79 81 89 88 66 72 80 85 66 72 80 84 72 79
WIND DIR S S SW W SW SW W N NE E N N E SE S S SE S
WIND SPD 9 6 5 3 5 5 5 6 5 4 4 8 5 6 6 5 10 10
AVG CLOUDS B2 B2 B2 B1 SC B1 SC SC FW FW FW FW FW FW SC SC SC B1
POP 12HR 70 50 30 20 10 5 10 30 30
RAIN SHWRS L L L S C S S C S C
TSTMS C C C S C
$$
VAZ064-200800-
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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