Alert archive / Missouri / Fire Weather Watches in 2017
Fire Weather Watch 3, NWS St. Louis, MO
NWS St. Louis, MO issued this fire weather watch at Mar 6, 2017, 3:33 PM CST for 19 counties in Missouri; 6 counties in Illinois. It took effect at Mar 7, 2017, 11:00 AM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 6, 2017, 3:33 PM CST (21:33 UTC)
- In effect from
- Mar 7, 2017, 11:00 AM CST
- Expired
- Mar 7, 2017, 4:00 AM CST
- In force
- Issued by
- NWS St. Louis, MO
All 25 counties
Adams County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Pike County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Franklin County, MO, Gasconade County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Saint Charles County, MO, Shelby County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 88 km from the middle of the area, began a volume at 21:30 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 12:00Z, 9.6 hours before the alert went out and 330 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
- 476 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 413 m²/s²
- 0-3 km storm-relative helicity
- 455 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this fire weather watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this fire weather watch went out at Mar 6, 12:56 PM CST, 2 hours 37 minutes earlier.
Area forecast discussion, Mar 6, 12:56 PM CST, 2 hours 37 minutes before
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Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 3:35 AM CST | Wind Advisory | LSX | Audrain, Boone, Callaway, Cole, Knox, Lewis and 5 more | 14 hr |
Nearby
Fire Weather Watches in Missouri, 2017Fire Weather Watches in Illinois, 2017Every fire weather watch 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.