Alert archive / Colorado / Red Flag Warnings in 2012
Red Flag Warning 4, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Mar 25, 2012, 12:15 PM MDT for 19 counties in Colorado. It took effect at Mar 26, 2012, 10:00 AM MDT. It was in force for 11 hr. 5 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 25, 2012, 12:15 PM MDT (18:15 UTC)
- In effect from
- Mar 26, 2012, 10:00 AM MDT
- Expired
- Mar 26, 2012, 8:58 PM MDT
- In force
- 11 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 22 km from the middle of the area, began a volume at 18:15 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 26, 12:45 PM MDT | NON-TSTM WND GST 70 | 1 N Strasburg, CO | |
| Mar 26, 2:35 PM MDT | NON-TSTM WND GST 56 | Denver International Ai, CO | |
| Mar 26, 3:00 PM MDT | NON-TSTM WND GST 81 | Berthoud Pass, CO | |
| Mar 26, 3:18 PM MDT | NON-TSTM WND GST 66 | 1 Nw Golden, CO | |
| Mar 26, 4:05 PM MDT | NON-TSTM WND GST 62 | Cedar Point, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 6.3 hours before the alert went out and 99 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
- 1205 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
153 WWUS85 KBOU 251815 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1215 PM MDT SUN MAR 25 2012 COZ238>251-260400- /O.UPG.KBOU.FW.A.0003.120326T1600Z-120327T0100Z/ /O.NEW.KBOU.FW.W.0004.120326T1600Z-120327T0100Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1215 PM MDT SUN MAR 25 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEAST COLORADO ... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 242...243...244...245...246...247...248...249...250 AND 251. * TIMING...FROM 10 AM MDT TO 7 PM MDT ON MONDAY. * WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. WINDS WILL SHIFT TO THE WEST LATE IN THE AFTERNOON. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...ANY NEW FIRE STARTS MAY EXHIBIT RAPID GROWTH DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE AVOIDED. ANY SMALL SPARK MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ COZ215-216-260400- /O.UPG.KBOU.FW.A.0003.120326T1800Z-120327T0100Z/ /O.NEW.KBOU.FW.W.0004.120326T1600Z-120327T0100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- 1215 PM MDT SUN MAR 25 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS BELOW 7000 FEET ... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 215 AND 216. * TIMING...10 AM MDT TO 7 PM MDT ON MONDAY. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 65 MPH. WINDS WILL SHIFT TO THE WEST DURING THE AFTERNOON HOURS. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * IMPACTS...ANY NEW FIRE STARTS MAY EXHIBIT RAPID GROWTH DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE AVOIDED. ANY SMALL SPARK MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
5 follow-up statements
414 WWUS85 KBOU 260151 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 751 PM MDT SUN MAR 25 2012 COZ215-216-238>251-261300- /O.CON.KBOU.FW.W.0004.120326T1600Z-120327T0100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 751 PM MDT SUN MAR 25 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MDT MONDAY FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITY FOR THE PLAINS OF NORTHEAST COLORADO AND FRONT RANGE FOOTHILLS BELOW 7000 FEET... * AFFECTED AREA...FIRE WEATHER ZONES 238...239...240...241... 242...243...244...245...246...247...248...249...250 AND 251... AS WELL AS ZONES 215 AND 216 BELOW 7000 FEET. * TIMING...FROM 10 AM MDT TO 7 PM MDT ON MONDAY. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 50 MPH. GUSTS UP TO 65 MPH POSSIBLE IN THE FOOTHILLS. * RELATIVE HUMIDITY...AS LOW AS 8 PERCENT. * IMPACTS...ANY NEW FIRE STARTS WILL LIKELY EXHIBIT RAPID GROWTH AND EXTREME FIRE BEHAVIOR DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE DELAYED UNTIL WINDS SUBSIDE TUESDAY. ANY SMALL SPARK INCLUDING A CARELESSLY DISCARDED CIGARETTE BUTTE MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ BARJENBRUCH
057 WWUS85 KBOU 261239 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 639 AM MDT MON MAR 26 2012 COZ215-216-238>251-262200- /O.CON.KBOU.FW.W.0004.120326T1600Z-120327T0100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 639 AM MDT MON MAR 26 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM MDT THIS EVENING FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITY FOR THE PLAINS OF NORTHEAST COLORADO AND FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONES 215...216...238...239... 240...241...242...243...244...245...246...247...248...249... 250 AND 251. * TIMING...FROM 10 AM MDT TO 7 PM MDT ON MONDAY. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 60 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * IMPACTS...ANY NEW FIRE STARTS WILL LIKELY EXHIBIT RAPID GROWTH AND EXTREME FIRE BEHAVIOR DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE DELAYED UNTIL WINDS SUBSIDE TUESDAY. ANY SMALL SPARK INCLUDING A CARELESSLY DISCARDED CIGARETTE BUTTE MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ GIMMESTAD
159 WWUS85 KBOU 261951 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 151 PM MDT MON MAR 26 2012 COZ215-216-238>251-270100- /O.CON.KBOU.FW.W.0004.000000T0000Z-120327T0100Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 151 PM MDT MON MAR 26 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITY FOR THE PLAINS OF NORTHEAST COLORADO AND FRONT RANGE FOOTHILLS... * AFFECTED AREA...FIRE WEATHER ZONES 215...216...238...239... 240...241...242...243...244...245...246...247...248...249... 250 AND 251. * TIMING...UNTIL 7 PM MDT ON TONIGHT. * WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS FROM 40 TO 55 MPH. * RELATIVE HUMIDITY...5 TO 15 PERCENT. * IMPACTS...ANY NEW FIRE STARTS WILL LIKELY EXHIBIT RAPID GROWTH AND EXTREME FIRE BEHAVIOR DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE DELAYED UNTIL WINDS SUBSIDE TUESDAY. ANY SMALL SPARK INCLUDING A CARELESSLY DISCARDED CIGARETTE BUTTE MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$
203 WWUS85 KBOU 262336 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 536 PM MDT MON MAR 26 2012 COZ215-216-238>251-270300- /O.EXT.KBOU.FW.W.0004.000000T0000Z-120327T0300Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 536 PM MDT MON MAR 26 2012 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITY FOR THE FRONT RANGE FOOTHILLS AND PLAINS OF NORTHEAST COLORADO... * AFFECTED AREA...FIRE WEATHER ZONES 215...216...238...239... 240...241...242...243...244...245...246...247...248...249... 250 AND 251. * TIMING...UNTIL 9 PM MDT TONIGHT. * WINDS...WEST 20 TO 30 MPH WITH GUSTS BETWEEN 35 AND 50 MPH. WINDS WILL THEN DECREASE AROUND 9 PM EXCEPT REMAIN GUSTY AT TIMES ESPECIALLY IN THE FOOTHILLS OF LARIMER...BOULDER...AND NORTHERN JEFFERSON COUNTIES. * RELATIVE HUMIDITY...BETWEEN 5 AND 10 PERCENT UNTIL 7 PM...THEN SLOW IMPROVEMENT TO AROUND 15 PERCENT BY 9 PM. * IMPACTS...ANY NEW FIRE STARTS AND EXISTING WILDFIRES WILL LIKELY EXHIBIT RAPID GROWTH AND EXTREME FIRE BEHAVIOR DUE TO THE VERY LOW HUMIDITIES AND STRONG GUSTY WINDS. ALL OUTDOOR BURNING SHOULD BE DELAYED UNTIL WINDS SUBSIDE TUESDAY. ANY SMALL SPARK INCLUDING A CARELESSLY DISCARDED CIGARETTE BUTTE MAY GENERATE A LARGE WILDFIRE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING. && $$ BARJENBRUCH
067 WWUS85 KBOU 270258 RFWBOU URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 858 PM MDT MON MAR 26 2012 COZ215-216-238>251-270400- /O.CAN.KBOU.FW.W.0004.000000T0000Z-120327T0300Z/ LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 858 PM MDT MON MAR 26 2012 ...RED FLAG WARNING FOR THE FRONT RANGE FOOTHILLS AND PLAINS OF NORTHEAST COLORADO HAS EXPIRED... THE NATIONAL WEATHER SERVICE IN DENVER HAS ALLOWED THE RED FLAG WARNING TO EXPIRE. WHILE HUMIDITY WILL ONLY SLOWLY IMPROVE OVERNIGHT...WINDS HAVE DECREASED SUFFICIENTLY TO ALLOW THE RED FLAG WARNING TO EXPIRE. $$ BARJENBRUCH
Nearby
Red Flag Warnings in Colorado, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.