000 FNUS56 KPDT 142222 FWFPDT FIRE WEATHER FORECAST NATIONAL WEATHER SERVICE PENDLETON OR 325 PM PDT WED AUG 14 2002 MITTELSTADT/TOBIN ...RED FLAG WARNING FOR THE COLUMBIA BASIN THROUGH THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY... ...NEAR RED FLAG CONDITIONS POSSIBLE THIS EVENING FOR THE CENTRAL OREGON MOUNTAINS FOR WIND AND LOW RELATIVE HUMIDITY... ...NEAR RED FLAG CONDITIONS POSSIBLE THURSDAY NIGHT FOR A LARGE PORTION OF THE FORECAST DISTRICT FOR WIND AND LOW RELATIVE HUMIDITY... DISCUSSION...NORTHWEST FLOW ALOFT WILL CONTINUE ACROSS THE REGION INTO THE WEEKEND. IN ADDITION AFTERNOON RELATIVE HUMIDITY WILL CONTINUE TO BE VERY LOW...OVERNIGHT RECOVERIES WILL BE SLIGHTLY HIGHER THURSDAY NIGHT. A LOW PRESSURE SYSTEM MOVING SOUTHEAST ACROSS THE IDAHO PANHANDLE WILL INCREASE WIND OVERNIGHT THURSDAY...MAINLY ALONG RIDGE TOPS. A DRY COOL FRONT WILL BRING A COOLING TREND BEGINNING FRIDAY. ***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS*** ***CWR = CHANCE OF A WETTING RAIN WHICH IS GREATER THAN .10*** ***WINDS ARE 20 FOOT/10 MINUTE AVERAGE*** HIGH ELEVATION HAINES INDEX OBSERVED WEDNESDAY AUG 14... SALEM...5 MEDFORD...4 SPOKANE...2 BOISE...5 ZONE: 630...CENTRAL MOUNTAINS OF OREGON: ...NEAR RED FLAG CONDITIONS POSSIBLE THIS EVENING AND AGAIN THURSDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY... TONIGHT... WEATHER...CLEAR. MIN TEMP...50-56 RIDGES...43-50 VALLEYS. 24 HR TREND...DOWN 3-6. MAX RH...25-30 PCT RIDGES...40-45 PCT VALLEYS. 24 HR TREND...UP 3-8 PCT. 20 FT WIND...NW 6-12 MPH WITH EVENING GUSTS TO 25 MPH...DECREASING LATE. RIDGE TOP WIND...NW 7-15 MPH WITH EVENING GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY... WEATHER...SUNNY AND BREEZY. MAX TEMP...78-84 RIDGES...86-93 VALLEYS. 24 HR TREND...DOWN 4-8. MIN RH...12-15 PCT RIDGES...10-14 PCT VALLEYS. 24 HR TREND...UP SLIGHTLY. 20 FT WIND...NW 10-16 MPH WITH AFTERNOON GUSTS TO 20 MPH. RIDGE TOP WIND...NW 12-18 MPH WITH AFTERNOON GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY NIGHT... WEATHER...CLEAR. MIN TEMP...47-54 RIDGES...41-48 VALLEYS. 24 HR TREND...DOWN 2-4. MAX RH...30-38 PCT RIDGES...45-55 PCT VALLEYS. 24 HR TREND...UP 3-8 PCT. 20 FT WIND...NW 6-12 MPH WITH EVENING GUSTS TO 20 MPH...DECREASING LATE. RIDGE TOP WIND...NW 7-15 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). FRIDAY... WEATHER...SUNNY AND BREEZY. MAX TEMP...74-80 RIDGES...82-88 VALLEYS. 24 HR TREND...DOWN 4-8. MIN RH...12-15 PCT RIDGES...8-12 PCT VALLEYS. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...NW 10-16 MPH WITH AFTERNOON GUSTS TO 20 MPH. RIDGE TOP WIND...NW 12-18 MPH WITH AFTERNOON GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). ZONES: 632,633,634,635,638...NORTHEAST OREGON MOUNTAINS: ...NEAR RED FLAG CONDITIONS THURSDAY NIGHT FOR WIND AND LOW RELATIVE HUMIDITY... TONIGHT... WEATHER...CLEAR. MIN TEMP...50-60 RIDGES...35-45 VALLEYS. 24 HR TREND...LITTLE CHANGE. MAX RH...30-35 PCT RIDGES...40-50 PCT VALLEYS. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...NW 5-10 MPH...BECOMING DRAINAGE 1-4 MPH LATE. RIDGE TOP WIND...W-NW 7-14 MPH WITH GUSTS TO 20 MPH...DECREASING LATE. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY... WEATHER...SUNNY. MAX TEMP...78-84 RIDGES...86-90 VALLEYS. 24 HR TREND...DOWN 2-5. MIN RH...12-18 PCT RIDGES...10-14 PCT VALLEYS. 24 HR TREND...UP 2-4. 20 FT WIND...LIGHT WIND...INCREASING TO NW 6-12 MPH. RIDGE TOP WIND...W-NW 6-13 MPH WITH AFTERNOON GUSTS TO 20 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY NIGHT... WEATHER...CLEAR. MIN TEMP...50-56 RIDGES...35-45 VALLEYS. 24 HR TREND...DOWN 1-4 RIDGES...LITTLE CHANGE VALLEYS. MAX RH...33-40 PCT RIDGES...45-55 PCT VALLEYS. 24 HR TREND...UP 3-6. 20 FT WIND...NW 5-10 MPH...BECOMING DRAINAGE 1-4 MPH LATE. RIDGE TOP WIND...N-NW 8-15 MPH WITH GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). FRIDAY... WEATHER...SUNNY. MAX TEMP...65-73 RIDGES...75-85 VALLEYS. 24 HR TREND...DOWN 5-10. MIN RH...12-18 PCT RIDGES...10-14 PCT VALLEYS. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...LIGHT WIND...INCREASING TO NW 6-12 MPH. RIDGE TOP WIND...NW 8-15 MPH WITH GUSTS 20 TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). ZONE 631 AND 675...COLUMBIA BASIN OF OREGON AND THE EASTERN COLUMBIA BASIN OF WASHINGTON: ...RED FLAG WARNING THROUGH THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY... TONIGHT... WEATHER...CLEAR. MIN TEMP...60-66 RIDGETOP...55-60 BASIN. 24 HR TREND...DOWN 1-3. MAX RH...23-33 PCT RIDGES...47-57 PCT BASIN. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...NW 8-18 MPH BECOMING DRAINAGE 1-4 MPH LATE. ...COLUMBIA GORGE W 10-20 MPH WITH EVENING GUSTS TO 25 MPH. RIDGE TOP WIND...NW 10-20 MPH WITH EVENING GUSTS TO 30 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY... WEATHER...SUNNY. MAX TEMP...85-90 RIDGES...87-93 BASIN. 24 HR TREND...DOWN 3-6. MIN RH...12-16 PCT RIDGES...15-20 PCT BASIN. 24 HR TREND...UP 3-5. 20 FT WIND...LIGHT WIND BECOMING W-NW 7-12 MPH AFTERNOON. ...COLUMBIA GORGE BECOMING W 10-15 MPH WITH GUSTS TO 25 MPH. RIDGE TOP WIND...W-NW 8-15 MPH WITH AFTERNOON GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY NIGHT... WEATHER...CLEAR. MIN TEMP...58-64 RIDGETOP...53-58 BASIN. 24 HR TREND...DOWN 2-4. MAX RH...36-42 PCT RIDGES...50-60 PCT BASIN. 24 HR TREND...UP 3-6. 20 FT WIND...W-NW 7-12 MPH BECOMING DRAINAGE 1-4 MPH. ...COLUMBIA GORGE W 10-15 MPH WITH EVENING GUSTS TO 25 MPH. RIDGE TOP WIND...NW 10-20 MPH WITH EVENING GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). FRIDAY... WEATHER...SUNNY. MAX TEMP...68-78 RIDGES...78-85 BASIN. 24 HR TREND...DOWN 8-12. MIN RH...12-16 PCT RIDGES...15-20 PCT BASIN. 24 HR TREND..LITTLE CHANGE. 20 FT WIND...LIGHT WIND BECOMING W-NW 5-10 MPH AFTERNOON. ...COLUMBIA GORGE W 10-15 MPH WITH EVENING GUSTS TO 28 MPH. RIDGE TOP WIND...NW-N 8-12 MPH WITH GUSTS TO 18 MPH AFTERNOON. ...COLUMBIA GORGE W 10-18 MPH WITH EVENING GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). ZONE 681...YAKAMA ALPINE DISTRICT: ...NEAR RED FLAG CONDITIONS THIS EVENING WITH WIND AND LOW RELATIVE HUMIDITY... TONIGHT... WEATHER...CLEAR. MIN TEMP...56-60 RIDGETOP...48-56 VALLEY. 24 HR TREND...DOWN 4-9. MAX RH...28-38 RIDGETOP...50-60 PCT VALLEY. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...W-NW 6-12 MPH...DECREASING LATE. RIDGE TOP WIND...W-NW 10-18 MPH WITH EVENING GUSTS TO 30 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY...SUNNY. MAX TEMP...73-78 RIDGES...84-89 VALLEYS. 24 HR TREND...DOWN 3-6. MIN RH...20-30 PCT RIDGES...AROUND 20 PCT VALLEYS. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...NW 4-8 MPH. RIDGE TOP WIND...NW 6-12 MPH WITH AFTERNOON GUSTS TO 20 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). THURSDAY NIGHT... WEATHER...CLEAR. MIN TEMP...54-61 RIDGETOP...58-54 VALLEY. 24 HR TREND...DOWN 2-4. MAX RH...30-40 RIDGETOP...53-63 PCT VALLEY. 24 HR TREND...UP 2-5. 20 FT WIND...W-NW 6-12 MPH...DECREASING LATE. RIDGE TOP WIND...NW 10-18 MPH WITH EVENING GUSTS TO 25 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). FRIDAY...SUNNY. MAX TEMP...67-74 RIDGES...79-84 VALLEYS. 24 HR TREND...DOWN 4-7. MIN RH...20-30 PCT RIDGES...AROUND 20 PCT VALLEYS. 24 HR TREND...LITTLE CHANGE. 20 FT WIND...NW 4-8 MPH. RIDGE TOP WIND...NW 6-12 MPH WITH GUSTS TO 18 MPH. CWR...0 PCT. LAL...1. HAINES...4 (LOW). EXTENDED FORECAST...SATURDAY THROUGH MONDAY... SATURDAY THROUGH MONDAY...DRY WITH BELOW NORMAL TEMPERATURES CONTINUING THROUGH THE PERIOD. LOWS 40-50...EXCEPT 50-55 BASIN. HIGHS 70-80 MOUNTAINS AND 83-88 VALLEYS/BASIN. WIND OUTLOOK: SATURDAY...W-NW 10-15 MPH. SUNDAY AND MONDAY...SW-W 6-12 MPH. 6-10 DAY OUTLOOK...TUESDAY AUG 20 - SATURDAY AUG 24 2002... BELOW NORMAL TEMPERATURES AND NORMAL PRECIPITATION THROUGH THE PERIOD. FIRE WEATHER PROBABILITY FORECAST FOR ZONE 632 THIS IS AN EXPERIMENTAL FIVE DAY PROBABILITY FORECAST OF SELECTED WEATHER PARAMETERS IN TENS OF PERCENT. THIS DATA DOES NOT APPLY TO AND SHOULD NOT BE USED FOR ANY ZONE...OTHER THAN OREGON ZONE 632. ISSUED...WED AUG 14 2002...VALID BEGINNING THU AUG 15 2002. ZONE PRECIP RH WIND LIGHTNING 632 00000 86633 35433 00000 1. CHANCE OF 0.10 OR MORE PRECIP OVER HALF OR MORE OF THE ZONE. 2. CHANCE OF RH LESS THAN 15% OCCURRING OVER HALF OR MORE OF THE ZONE. 3. CHANCE OF SUSTAINED SURFACE WINDS OF 14 MPH OR GREATER OVER HALF OR MORE OF THE ZONE FOR AT LEAST ONE HOUR. 4. CHANCE OF RECEIVING ONE OR MORE LIGHTNING STRIKES IN THE ZONE.