EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Mon May 18 2026
MDZ025-190800-
Assateague Island RAWS - Worchester MD
38.08N 75.20W Elev. 12 ft
510 PM EDT Mon May 18 2026
Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu
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 64 74 64 77 58
TEMP 71 67 66 65 66 71 73 74 70 67 66 65 67 73 76 76 67 66 65 63 60
DEWPT 64 64 65 65 65 65 63 63 63 63 63 63 63 63 62 63 63 64 65 62 58
MAX/MIN RH 100 69 96 61 100
RH 81 90 95100 96 82 72 70 77 87 92 93 87 72 63 63 87 93 99100 94
WIND DIR S S S SW SW S S S S S SW SW SW SW S S S SW NW N N
WIND DIR DEG 19 19 20 20 21 20 19 19 19 20 21 21 21 21 20 19 19 21 30 01 02
WIND SPD 13 14 12 11 10 12 16 16 16 17 14 12 12 11 14 16 14 6 5 8 13
CLOUDS SC FW FW SC SC FW FW FW FW FW FW FW FW CL FW FW B1 B1 B1 B1 B2
CLOUDS(%) 35 18 21 28 31 24 23 19 17 16 21 21 11 5 6 8 62 62 59 66 72
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 5 40
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S C
TSTMS S S S
MIX HGT 300 300 1300 1300 400 400 1700 1800 600 1000
T WIND DIR S SW SW S S SW SW S N NW
T WIND SPD 14 12 13 16 16 13 12 13 8 9
SMOKE DISP PR PR PR PR PR PR PR PR PR PR
ADI 14 13 26 26 15 14 26 30 12 28
MAX LVORI 5 8 6 4 5 7 5 5 9 10
STABILITY D D C C D D C C D D
CEILING 30000 30000 30000 30000 30000 30000 30000 23500 8900 8000
PRESSURE 30.17 30.17 30.18 30.13 30.10 30.07 30.07 30.01 30.02 30.09
Date 05/21Fri 05/22/26Sat 05/23/26Sun 05/24/26Mon 05/25/26
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 64 55 62 56 66 59 69 59 68
TEMP 63 59 57 58 58 57 59 60 63 61 62 63 66 62 62 62 65 61
DEWPT 53 52 54 54 53 55 59 60 61 61 62 62 62 61 62 62 60 59
MIN/MAX RH 69 93 81 100 92 100 82 100 81
RH 71 80 89 87 83 94 99 99 92100100 99 87 98 99 98 83 93
WIND DIR NE NE NE NE E E E E E E SE E SE E E E E SE
WIND SPD 14 11 9 14 16 13 11 10 11 10 10 9 10 8 8 6 9 6
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR 50 50 70 70 60 60 60 50 40
RAIN SHWRS C C C C L L L L L C C L C L C C C C
TSTMS S S S S
$$
VAZ064-190800-
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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