EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Mon Sep 21 2026
MDZ025-212000-
Assateague Island RAWS - Worchester MD
38.08N 75.20W Elev. 12 ft
510 AM EDT Mon Sep 21 2026
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26
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 75 70 73 66 71
TEMP 72 74 73 73 72 72 72 71 71 72 72 72 70 69 69 68 68 70 71 70 68
DEWPT 70 69 68 68 68 69 68 68 68 68 67 66 65 66 66 66 65 65 65 64 64
MIN/MAX RH 83 92 82 92 80
RH 94 85 83 84 87 90 90 92 90 87 85 82 86 90 90 92 91 83 82 82 86
WIND DIR N N NE NE NE NE E E E E NE NE NE NE NE NE NE NE NE NE NE
WIND DIR DEG 00 02 04 04 05 06 07 07 07 07 06 06 06 05 05 05 05 05 05 05 05
WIND SPD 10 13 16 16 16 16 17 17 20 21 23 24 26 25 27 28 27 27 28 29 31
CLOUDS B2 B2 B2 OV B2 B2 OV OV B2 B2 OV OV OV OV OV OV OV B2 B2 B2 OV
CLOUDS(%) 80 82 79 89 87 87 94 89 86 87 90 92 95 93 94 93 90 87 86 87 88
VSBY 7 7 7 7 7 7 7 7 7 7 4 7 6 6 4 4 4 4 7 7 7
POP 12HR 10 50 70 70 60
QPF 12HR 0 0.06 0.31 0.41 0.87
SNOW 12HR 00-00 00-00 00-00
RAIN L L L L C C C
RAIN SHWRS S C C C C L C L L
TSTMS S S S S S
MIX HGT 2000 2400 2200 2000 2200 2700 2800 3100 3200 3700
T WIND DIR NE NE NE NE E NE NE NE NE NE
T WIND SPD 18 23 23 27 32 34 39 44 42 49
SMOKE DISP PR FR FR FR FR GD GD VG VG EX
ADI 39 49 32 62 65 76 54 112 112 120
MAX LVORI 5 4 4 4 4 4 4 4 4 4
STABILITY D D D D D D D D D D
CEILING 1000 1000 1000 1000 1000 1000 500 1000 1000 300
PRESSURE 30.0 30.02 30.05 30.06 30.10 30.11 30.13 30.10 30.13 30.12
Date Thu 09/24/26Fri 09/25/26Sat 09/26/26Sun 09/27/26
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 65 70 61 68 59 68 61 70
TEMP 67 66 69 67 64 62 65 64 62 60 67 66 62 63 68 67
DEWPT 64 62 62 60 60 59 57 55 56 57 55 56 57 58 57 57
MAX/MIN RH 92 78 90 69 89 64 89 66
RH 90 88 79 80 87 89 75 73 80 89 66 72 83 86 67 72
WIND DIR NE NE NE NE N N N N N N N N N N N N
WIND SPD 29 28 27 26 26 25 24 25 23 20 17 16 12 13 12 9
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC
POP 12HR 40 40 30 40 40 30 10 10
RAIN C C
RAIN SHWRS C C C C C C C C C S
$$
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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