ISSUED FIRE WEATHER PLANNING FORECAST
This forecast is valid for the following county: WASHINGTON_OK
DISCUSSION:
UNSEASONABLY WARM AND HUMID CONDITIONS WILL CONTINUETHURSDAY THROUGH FRIDAY...WITH A STRONG COLD FRONT PASSINGTHROUGH THE REGION FRIDAY NIGHT. WIDESPREAD SHOWERS ANDTHUNDERSTORMS ARE EXPECTED WITH THE FRONTAL PASSAGE.MUCH COOLER AND BREEZY CONDITIONS ARE EXPECTED OVER THEWEEKEND.
| Today | |
| 12 Hour Probability of Precipitation = 10% |
| 12 Hour Precipitation Amount = | |
|
|
Forecast Time | 9AM |
Noon | 3PM |
6PM |
|
Temperature (F) |
-99 | -99 |
83 | 82 |
|
Relative Humidity (%) |
-99 | -99 |
60 | 64 |
|
20 Foot Wind (MPH) |
N0 | N0 |
S9 | S8 |
|
Mixing Height (ft) |
1900 | 4400 |
6300 | 4400 |
|
Transport Wind (mph) |
S14 | S21 |
S23 | S20 |
|
Ventilation Rate (m2/s) |
3624 | 12589 |
19742 | 11990 |
|
Category Day |
2 | 4 |
5 | 4 |
|
Spread Index |
24 | 24 |
24 | 24 |
|
Low-level Stability |
C | B |
B | C |
|
1700ft Mixing Ht Temp (F) |
70 | 70 |
70 | 70 |
|
Cloud cover |
-99 | BK |
SC | SC |
| | |
|
| Tonight | |
| 12 Hour Probability of Precipitation = 10% |
| 12 Hour Precipitation Amount = | |
|
| Forecast Time |
9PM | Mid |
3AM | 6AM |
|
Temperature (F) |
78 | 75 |
73 | 72 |
|
Relative Humidity (%) |
66 | 73 |
81 | 73 |
|
20 Foot Wind (MPH) |
SE5 | SE5 |
SE5 | SE5 |
|
Mixing Height (ft) |
2800 | 900 |
500 | 300 |
|
Transport Wind (mph) |
S22 | S20 |
S10 | SE9 |
|
Ventilation Rate (m2/s)
| 8393 | 2452 |
681 | 368 |
|
Category Day |
4 | 2 |
1 | 1 |
|
Spread Index |
24 | 24 |
24 | 24 |
|
Low-level Stability |
F | F |
F | F |
|
1700ft Mixing Ht Temp (F) |
75 | 75 |
75 | 75 |
|
Cloud cover |
SC | SC |
BK | BK |
| | |
|
| Tomorrow | |
| 12 Hour Probability of Precipitation = 10% |
| 12 Hour Precipitation Amount = | |
|
| Forecast Time |
9AM | Noon |
3PM | 6PM |
|
Temperature (F) |
76 | 84 |
88 | 86 |
|
Relative Humidity (%) |
73 | 58 |
49 | 49 |
|
20 Foot Wind (MPH) |
S10 | S14 |
S15 | S13 |
|
Mixing Height (ft) |
1100 | 5300 |
7100 | 6500 |
|
Transport Wind (mph) |
S23 | S29 |
S30 | S31 |
|
Ventilation Rate (m2/s) |
3447 | 20941 |
29020 | 27453 |
|
Category Day |
2 | 5 |
5 | 5 |
|
Spread Index |
36 | 36 |
36 | 36 |
|
Low-level Stability |
D | B |
C | E |
|
1700ft Mixing Ht Temp (F) |
77 | 77 |
77 | 77 |
|
Cloud cover |
SC | SC |
SC | SC |
| | |
|
|
DAY 3 THROUGH 7 FORECAST |
|
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