ISSUED FIRE WEATHER PLANNING FORECAST
This forecast is valid for the following county: WASHINGTON_AR
DISCUSSION:
THE FIRE DANGER THREAT WILL BEGIN TO INCREASE TODAY AS MILDAND BREEZY CONDITIONS DEVELOP BY EARLY AFTERNOON. A STRONG COLDFRONT WILL MOVE INTO THE AREA ON MONDAY. SOUTH OF THE BOUNDARY...AN ELEVATED FIRE DANGER THREAT WILL CONTINUE MONDAY AFTERNOONACROSS SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS WITHWARM...DRY...BREEZY CONDITIONS.
| Today | |
| 12 Hour Probability of Precipitation = 10% |
| 12 Hour Precipitation Amount = | |
|
|
Forecast Time | 9AM |
Noon | 3PM |
6PM |
|
Temperature (F) |
30 | 46 |
54 | 52 |
|
Relative Humidity (%) |
65 | 38 |
32 | 37 |
|
20 Foot Wind (MPH) |
S7 | S8 |
S12 | S11 |
|
Mixing Height (ft) |
400 | 3000 |
3600 | 2700 |
|
Transport Wind (mph) |
S13 | SW21 |
SW22 | S28 |
|
Ventilation Rate (m2/s) |
708 | 8583 |
10791 | 10300 |
|
Category Day |
1 | 4 |
4 | 4 |
|
Spread Index |
41 | 41 |
41 | 41 |
|
Low-level Stability |
C | B |
C | F |
|
1700ft Mixing Ht Temp (F) |
38 | 38 |
38 | 48 |
|
Cloud cover |
SC | SC |
SC | SC |
| | |
|
| Tonight | |
| 12 Hour Probability of Precipitation = 5% |
| 12 Hour Precipitation Amount = | |
|
| Forecast Time |
9PM | Mid |
3AM | 6AM |
|
Temperature (F) |
47 | 44 |
42 | 41 |
|
Relative Humidity (%) |
49 | 57 |
75 | 70 |
|
20 Foot Wind (MPH) |
SE14 | SE14 |
S13 | S13 |
|
Mixing Height (ft) |
1500 | 400 |
100 | 100 |
|
Transport Wind (mph) |
S30 | SE23 |
SE13 | SE13 |
|
Ventilation Rate (m2/s)
| 6131 | 1253 |
177 | 177 |
|
Category Day |
3 | 1 |
1 | 1 |
|
Spread Index |
41 | 41 |
41 | 39 |
|
Low-level Stability |
F | F |
F | F |
|
1700ft Mixing Ht Temp (F) |
48 | 48 |
48 | 50 |
|
Cloud cover |
SC | SC |
SC | SC |
| | |
|
| Tomorrow | |
| 12 Hour Probability of Precipitation = 5% |
| 12 Hour Precipitation Amount = | |
|
| Forecast Time |
9AM | Noon |
3PM | 6PM |
|
Temperature (F) |
47 | 58 |
63 | 59 |
|
Relative Humidity (%) |
70 | 53 |
42 | 49 |
|
20 Foot Wind (MPH) |
S14 | SW14 |
SW11 | W6 |
|
Mixing Height (ft) |
400 | 3000 |
4300 | 400 |
|
Transport Wind (mph) |
S22 | S23 |
SW20 | W6 |
|
Ventilation Rate (m2/s) |
1199 | 9401 |
11717 | 327 |
|
Category Day |
1 | 4 |
4 | 1 |
|
Spread Index |
39 | 39 |
39 | 39 |
|
Low-level Stability |
D | C |
C | F |
|
1700ft Mixing Ht Temp (F) |
50 | 50 |
50 | 55 |
|
Cloud cover |
SC | SC |
SC | SC |
| | |
|
|
DAY 3 THROUGH 7 FORECAST |
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