EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Tue May 19 2026
MDZ022-200800-
Powellville RAWS - Wicomico MD
38.35N 75.42W Elev. 16 ft
510 PM EDT Tue May 19 2026
Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri
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 93 63 67 52
TEMP 81 77 76 73 76 85 92 92 81 73 70 67 66 65 65 63 60 58 57 55 56
DEWPT 65 64 63 62 64 63 62 61 63 66 66 63 58 52 52 51 52 52 52 52 52
MAX/MIN RH 72 36 90 63 89
RH 58 63 64 67 66 48 37 36 54 80 87 89 75 63 64 65 75 81 83 89 86
WIND DIR S S SW SW SW SW SW SW SW N N NE NE NE NE NE NE NE NE NE E
WIND DIR DEG 18 19 21 22 23 24 23 21 20 35 35 03 04 05 05 05 06 06 05 06 07
WIND SPD 8 8 8 8 9 9 10 10 6 3 3 3 8 10 11 10 8 5 5 6 9
CLOUDS FW FW FW CL CL CL FW FW B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%) 16 17 6 4 2 4 11 13 67 72 78 85 87 77 82 75 75 81 78 85 83
VSBY 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 6 6 6
POP 12HR 5 10 50 30 60
QPF 12HR 0 0 0.09 0 0.02
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C C C C C C C L L L
TSTMS C S
MIX HGT 600 1200 5600 5400 800 1400 2300 2100 1300 1300
T WIND DIR SW SW W SW NW NE NE NE NE NE
T WIND SPD 12 13 13 11 9 11 23 19 14 16
SMOKE DISP PR PR GD GD PR PR FR FR PR PR
ADI 9 25 86 82 8 29 48 45 17 30
MAX LVORI 3 3 1 3 5 6 3 3 4 5
STABILITY E E B C F E D D D D
CEILING 30000 14800 26600 26600 30000 3200 4000 4000 2700 2400
PRESSURE 30.01 29.97 30.0 29.92 29.94 30.01 30.17 30.18 30.23 30.21
Date 05/22Sat 05/23/26Sun 05/24/26Mon 05/25/26Tue 05/26/26
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 60 54 70 60 76 62 78 62 78
TEMP 59 59 59 59 67 66 64 65 74 71 66 65 76 72 66 65 76 72
DEWPT 49 53 55 58 61 61 62 63 64 63 62 63 63 63 62 62 62 62
MIN/MAX RH 70 97 81 96 66 96 62 93 60
RH 70 79 89 96 81 84 93 93 72 76 86 92 64 73 87 90 62 71
WIND DIR E E E E E NE NE NE E E SE SW SW E E NE E SE
WIND SPD 11 8 4 5 8 4 3 3 5 3 2 3 4 3 1 2 4 3
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR 70 60 60 70 60 60 50 50 40
RAIN SHWRS L L L L C L L L L L L C C C C C C C
TSTMS S C S S S S S
$$
MDZ025-200800-
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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