Alert archive / California / Red Flag Warnings in 2007
Red Flag Warning 21, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Aug 15, 2007, 3:21 PM PDT for Washoe County, Nevada; 7 counties in California. It took effect at Aug 16, 2007, 4:58 AM PDT. It was in force for 17 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2007, 3:21 PM PDT (22:21 UTC)
- In effect from
- Aug 16, 2007, 4:58 AM PDT
- Expired
- Aug 16, 2007, 9:35 PM PDT
- In force
- 17 hr
- Issued by
- NWS Reno, NV
Counties El Dorado County, CA, Lassen County, CA, Modoc County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Washoe County, NV
The radar
The Reno radar (KRGX), 95 km from the middle of the area, began a volume at 22:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 10.4 hours before the alert went out and 205 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3035 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS85 KREV 152221 RFWREV RED FLAG WARNING NATIONAL WEATHER SERVICE RENO NV 321 PM PDT WED AUG 15 2007 ...DRY AND BREEZY CONDITIONS THURSDAY... .LOW PRESSURE OVER THE PACIFIC WILL CONTINUE TO MOVE TOWARD THE WEST COAST. WINDS WILL INCREASE ACROSS THE NORTHERN SIERRA AND THE DESERTS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA AS THE LOW NEARS THE COAST THURSDAY. VERY DRY AIR WILL COMBINE WITH GUSTY WINDS TO CREATE CRITICAL FIRE WEATHER CONDITIONS. CAZ270>272-278-NVZ450-458-161400- /O.UPG.KREV.FW.A.0020.070816T2000Z-070817T0500Z/ /O.NEW.KREV.FW.W.0021.070816T2000Z-070817T0500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-GREATER LAKE TAHOE AREA- EASTERN LASSEN COUNTY-WESTERN NEVADA SIERRA FRONT- NORTHERN WASHOE COUNTY- 321 PM PDT WED AUG 15 2007 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 10 PM PDT THURSDAY... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM TO 10 PM PDT THURSDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. SOUTHWEST TO WEST WINDS WILL INCREASE THURSDAY AFTERNOON TO 15 TO 25 MPH WITH GUSTS TO 35 MPH THROUGH THURSDAY EVENING. GUSTS OVER THE NORTHERN SIERRA RIDGES WILL BE NEAR 50 MPH. GUSTY WINDS WITH HUMIDITY VALUES BELOW 15 PERCENT WILL RESULT IN DANGEROUS FIRE FIGHTING CONDITIONS. BREEZY AND DRY CONDITIONS WILL CONTINUE FRIDAY WITH THE POSSIBILITY OF ANOTHER DAY OF CRITICAL FIRE WEATHER CONDITIONS. $$ HOON HTTP://WEATHER.GOV/RENO/FIRE
3 follow-up statements
000 WWUS85 KREV 161158 RFWREV RED FLAG WARNING NATIONAL WEATHER SERVICE RENO NV 458 AM PDT THU AUG 16 2007 ...DRY AND BREEZY CONDITIONS TODAY... .LOW PRESSURE OVER THE PACIFIC WILL CONTINUE TO MOVE TOWARD THE WEST COAST. WINDS WILL INCREASE ACROSS THE NORTHERN SIERRA AS WELL AS THE DESERTS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. VERY DRY AIR WILL COMBINE WITH GUSTY WINDS TO CREATE CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON AND EVENING. NVZ453-162300- /O.EXA.KREV.FW.W.0021.070816T2000Z-070817T0500Z/ WEST CENTRAL NEVADA BASIN AND RANGE- 458 AM PDT THU AUG 16 2007 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING FOR THE NEVADA BASIN AND RANGE ALONG AND WEST OF I-80 FOR GUSTY WINDS AND LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING. SOUTHWEST TO WEST WINDS WILL INCREASE THIS AFTERNOON TO 15 TO 20 MPH WITH GUSTS TO 30 MPH. THESE GUSTY WINDS AND HUMIDITY VALUES NEAR OR BELOW 10 PERCENT WILL RESULT IN DANGEROUS FIRE FIGHTING CONDITIONS. $$ CAZ270>272-278-NVZ450-458-162300- /O.CON.KREV.FW.W.0021.070816T2000Z-070817T0500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-GREATER LAKE TAHOE AREA- EASTERN LASSEN COUNTY-WESTERN NEVADA SIERRA FRONT- NORTHERN WASHOE COUNTY- 458 AM PDT THU AUG 16 2007 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING FOR PARTS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA FOR GUSTY WINDS AND LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM PDT THIS EVENING. SOUTHWEST TO WEST WINDS WILL INCREASE THURSDAY AFTERNOON TO 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. GUSTS OVER THE NORTHERN SIERRA RIDGES WILL BE NEAR 50 MPH. GUSTY WINDS AND HUMIDITY VALUES AT OR BELOW 15 PERCENT WILL RESULT IN DANGEROUS FIRE FIGHTING CONDITIONS THIS AFTERNOON AND EVENING. $$ HTTP://WEATHER.GOV/RENO/FIRE
000 WWUS85 KREV 162131 RFWREV RED FLAG WARNING NATIONAL WEATHER SERVICE RENO NV 231 PM PDT THU AUG 16 2007 ...DRY AND BREEZY CONDITIONS CONTINUE TONIGHT... .LOW PRESSURE OVER THE PACIFIC WILL CONTINUE TO MOVE IN OVER THE WEST COAST. WINDS WILL INCREASE ACROSS THE NORTHERN SIERRA AS WELL AS THE DESERTS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. VERY DRY AIR WILL COMBINE WITH GUSTY WINDS TO CREATE CRITICAL FIRE WEATHER CONDITIONS FOR THE REST OF THIS EVENING. CAZ270>272-278-NVZ450-458-170500- /O.CON.KREV.FW.W.0021.000000T0000Z-070817T0500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-GREATER LAKE TAHOE AREA- EASTERN LASSEN COUNTY-WESTERN NEVADA SIERRA FRONT- NORTHERN WASHOE COUNTY- 231 PM PDT THU AUG 16 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING. SOUTHWEST TO WEST WINDS WILL CONTINUE THURSDAY AFTERNOON AND EVENING...15 TO 25 MPH WITH GUSTS UP TO 35 MPH. GUSTS OVER THE NORTHERN SIERRA RIDGES WILL BE NEAR 50 MPH. GUSTY WINDS AND HUMIDITY VALUES AT OR BELOW 15 PERCENT WILL RESULT IN DANGEROUS FIRE FIGHTING CONDITIONS THIS AFTERNOON AND EVENING. BREEZY AND DRY CONDITIONS WILL AFFECT THE AREA AGAIN FRIDAY AND SATURDAY...WITH POSSIBLE CRITICAL FIRE WEATHER CONDITIONS. $$ NVZ453-170500- /O.CON.KREV.FW.W.0021.000000T0000Z-070817T0500Z/ WEST CENTRAL NEVADA BASIN AND RANGE- 231 PM PDT THU AUG 16 2007 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING FOR THE NEVADA BASIN AND RANGE ALONG AND WEST OF I-80 FOR GUSTY WINDS AND LOW HUMIDITY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS EVENING. SOUTHWEST TO WEST WINDS WILL CONTINUE THIS AFTERNOON AND EVENING...15 TO 20 MPH WITH GUSTS NEAR 30 MPH. THESE GUSTY WINDS AND HUMIDITY VALUES NEAR OR BELOW 10 PERCENT WILL RESULT IN DANGEROUS FIRE FIGHTING CONDITIONS. BREEZY AND DRY CONDITIONS WILL AFFECT THE AREA AGAIN FRIDAY AND SATURDAY...WITH POSSIBLE CRITICAL FIRE WEATHER CONDITIONS. $$ HOON HTTP://WEATHER.GOV/RENO/FIRE
000 WWUS85 KREV 170435 RFWREV RED FLAG WARNING NATIONAL WEATHER SERVICE RENO NV 935 PM PDT THU AUG 16 2007 CAZ270>272-278-NVZ450-453-458-170545- /O.CAN.KREV.FW.W.0021.000000T0000Z-070817T0500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-GREATER LAKE TAHOE AREA- EASTERN LASSEN COUNTY-WESTERN NEVADA SIERRA FRONT- WEST CENTRAL NEVADA BASIN AND RANGE-NORTHERN WASHOE COUNTY- 935 PM PDT THU AUG 16 2007 ...RED FLAG WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RENO HAS CANCELLED THE RED FLAG WARNING FOR THE NORTHERN SIERRA AND DESERTS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. WIND GUSTS ARE DIMINISHING TO BELOW CRITICAL LEVELS. $$ CS HTTP://WEATHER.GOV/RENO/FIRE
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 2:56 PM PDT | Lake Wind Advisory | REV | Churchill, Douglas, Lyon, Mineral, Pershing, Washoe | 29 hr |
Nearby
Red Flag Warnings in California, 2007Red Flag Warnings in Nevada, 2007Every red flag warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.