Alert archive / North Dakota / Red Flag Warnings in 2011
Red Flag Warning 9, NWS Bismarck, ND
NWS Bismarck, ND issued this red flag warning at Oct 29, 2011, 3:10 AM MDT for Bowman County, Slope County, North Dakota. It took effect at Oct 29, 2011, 12:00 PM MDT. It was in force for 6 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
- Oct 29, 2011, 3:10 AM MDT (09:10 UTC)
- In effect from
- Oct 29, 2011, 12:00 PM MDT
- Expired
- Oct 29, 2011, 6:00 PM MDT
- In force
- 6 hr
- Issued by
- NWS Bismarck, ND
Counties Bowman County, ND, Slope County, ND
The radar
The Bismarck radar (KBIS), 216 km from the middle of the area, began a volume at 09:08 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 9.2 hours before the alert went out and 220 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
- 3264 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
640 WWUS83 KBIS 290910 RFWBIS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BISMARCK ND 410 AM CDT SAT OCT 29 2011 ...RED FLAG WARNING FAR SOUTHWEST THIS AFTERNOON... .STRONG NORTHWEST WINDS OF AROUND 35 MPH WITH GUSTS TO AROUND 45 MPH ARE EXPECTED TO DEVELOP OVER SOUTHWESTERN NORTH DAKOTA THIS AFTERNOON. THESE STRONG WINDS...ALONG WITH MINIMUM RELATIVE HUMIDITY OF AROUND 35 PERCENT COMBINED WITH LOW VEGETATIVE GREENNESS IN BOWMAN AND SLOPE COUNTIES...WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS. EXPLOSIVE FIRE GROWTH IS EXPECTED SHOULD A FIRE IGNITE. NDZ040-043-291715- /O.NEW.KBIS.FW.W.0009.111029T1800Z-111030T0000Z/ SLOPE-BOWMAN- 310 AM MDT SAT OCT 29 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING FOR STRONG WINDS...LOW VEGETATIVE GREENNESS...AND LOW RELATIVE HUMIDITY FOR BOWMAN AND SLOPE COUNTIES... THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A RED FLAG WARNING FOR STRONG WINDS...LOW VEGETATIVE GREENNESS...AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING. * AFFECTED AREA...BOWMAN AND SLOPE COUNTIES. * WINDS...WEST TO NORTHWEST 30 TO 35 MPH WITH GUSTS UP TO 50 MPH. * TIMING...THIS AFTERNOON * RELATIVE HUMIDITY...AS LOW AS 34 PERCENT. * TEMPERATURES...AROUND 50. * LIGHTNING...NOT EXPECTED. * IMPACTS...EXPLOSIVE FIRE GROWTH SHOULD A FIRE IGNITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ JV
2 follow-up statements
413 WWUS83 KBIS 291549 RFWBIS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BISMARCK ND 1049 AM CDT SAT OCT 29 2011 ...RED FLAG WARNING FAR SOUTHWEST THIS AFTERNOON... .STRONG NORTHWEST WINDS OF AROUND 30 MPH WITH GUSTS TO AROUND 45 MPH ARE EXPECTED TO DEVELOP OVER SOUTHWESTERN NORTH DAKOTA THIS AFTERNOON. THE STRONG WINDS...ALONG WITH MINIMUM RELATIVE HUMIDITY OF AROUND 35 PERCENT COMBINED WITH LOW VEGETATIVE GREENNESS IN BOWMAN AND SLOPE COUNTIES...WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS. EXPLOSIVE FIRE GROWTH IS EXPECTED SHOULD A FIRE IGNITE. NDZ040-043-300000- /O.CON.KBIS.FW.W.0009.111029T1800Z-111030T0000Z/ SLOPE-BOWMAN- 949 AM MDT SAT OCT 29 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR STRONG WINDS...LOW VEGETATIVE GREENNESS...AND LOW RELATIVE HUMIDITY FOR BOWMAN AND SLOPE COUNTIES... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. * AFFECTED AREA...BOWMAN AND SLOPE COUNTIES. * WINDS...WEST TO NORTHWEST 30 MPH WITH GUSTS UP TO 45 MPH. * TIMING...THIS AFTERNOON * RELATIVE HUMIDITY...AS LOW AS 34 PERCENT. * TEMPERATURES...AROUND 50. * LIGHTNING...NOT EXPECTED. * IMPACTS...EXPLOSIVE FIRE GROWTH SHOULD A FIRE IGNITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WAA
890 WWUS83 KBIS 300000 RFWBIS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE BISMARCK ND 700 PM CDT SAT OCT 29 2011 ...RED FLAG WARNING ALLOWED TO EXPIRE... .A WEST TO NORTHWEST WIND WILL GRADUALLY DIMINISH TONIGHT...AND CRITICAL FIRE WEATHER CONDITIONS ARE NO LONGER EXPECTED. NDZ040-043-300100- /O.EXP.KBIS.FW.W.0009.000000T0000Z-111030T0000Z/ SLOPE-BOWMAN- 600 PM MDT SAT OCT 29 2011 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING FOR SLOPE AND BOWMAN COUNTIES... THE RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING. A WEST TO NORTHWEST WIND WILL GRADUALLY DIMINISH TONIGHT...AND CRITICAL FIRE WEATHER CONDITIONS ARE NO LONGER EXPECTED. $$
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 2:51 AM MDT | Wind Advisory | BIS | Adams, Billings, Bowman, Golden Valley, Hettinger, Slope and 1 more | 15 hr |
Nearby
Red Flag Warnings in North Dakota, 2011Every red flag warning in 2011
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.