Alert archive / Missouri / Red Flag Warnings in 2017
Red Flag Warning 2, NWS St. Louis, MO
NWS St. Louis, MO issued this red flag warning at Mar 4, 2017, 4:00 AM CST for 7 counties in Missouri. It took effect at Mar 4, 2017, 12:00 PM CST. 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
- Mar 4, 2017, 4:00 AM CST (10:00 UTC)
- In effect from
- Mar 4, 2017, 12:00 PM CST
- Expired
- Mar 4, 2017, 6:00 PM CST
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
Counties Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Moniteau County, MO, Monroe County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 126 km from the middle of the area, began a volume at 10:04 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
Springfield, MO (KSGF), launched 00:00Z, 10.0 hours before the alert went out and 265 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
- 2372 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 593 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
807 WWUS83 KLSX 041000 RFWLSX URGENT - FIRE WEATHER MESSAGE National Weather Service Saint Louis MO 400 AM CST Sat Mar 4 2017 MOZ018-019-026-027-035-041100- /O.CAN.KLSX.FW.A.0002.170304T1600Z-170305T0000Z/ Knox MO-Lewis MO-Marion MO-Ralls MO-Shelby MO- 400 AM CST Sat Mar 4 2017 ...FIRE WEATHER WATCH IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHEAST MISSOURI... The National Weather Service in Saint Louis has cancelled the Fire Weather Watch. 20 foot winds are not expected to be as high as previously anticipated. $$ MOZ034-041-042-047>050-050000- /O.UPG.KLSX.FW.A.0002.170304T1600Z-170305T0000Z/ /O.NEW.KLSX.FW.W.0002.170304T1800Z-170305T0000Z/ Audrain MO-Boone MO-Callaway MO-Cole MO-Moniteau MO-Monroe MO- Osage MO- 400 AM CST Sat Mar 4 2017 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF CENTRAL AND PORTIONS OF NORTHEAST MISSOURI... The National Weather Service in Saint Louis has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon today to 6 PM CST this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Missouri, Fire Weather Zones 034, 041, 042, 047, 048, 049 and 050. * 20 FOOT WINDS...Southwest 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 percent. * 10 HOUR FUELS...Less than 9 percent. * IMPACTS...These conditions are conducive for the rapid spread and growth of uncontrolled wildfires. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and dry fuels can contribute to extreme fire behavior. && $$ TES
1 follow-up statement
165 WWUS83 KLSX 050003 RFWLSX URGENT - FIRE WEATHER MESSAGE National Weather Service Saint Louis MO 603 PM CST Sat Mar 4 2017 MOZ034-041-042-047>050-050115- /O.EXP.KLSX.FW.W.0002.000000T0000Z-170305T0000Z/ Audrain MO-Boone MO-Callaway MO-Cole MO-Moniteau MO-Monroe MO- Osage MO- 603 PM CST Sat Mar 4 2017 ...RED FLAG WARNING WILL EXPIRE AT 6 PM CST THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR PARTS OF CENTRAL MISSOURI... Relative humidity values are expected to rise through the early evening hours lessening the threat for wildfire development. $$ Britt
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 11:17 AM CST | River Flood Warning | LSX | Lewis | 9 days |
| Mar 4, 11:17 AM CST | River Flood Warning | LSX | Marion | 7 days |
| Mar 4, 11:17 AM CST | River Flood Warning | LSX | Pike | 7 days |
Nearby
Red Flag Warnings in Missouri, 2017Every red flag warning in 2017
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.