Alert archive / Illinois / Wind Advisories in 2017
Wind Advisory 6, NWS St. Louis, MO
NWS St. Louis, MO issued this wind advisory at Dec 13, 2017, 10:20 AM CST for Knox County, Lewis County, Missouri; 11 counties in Illinois. It took effect at Dec 13, 2017, 12:00 PM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Dec 13, 2017, 10:20 AM CST (16:20 UTC)
- In effect from
- Dec 13, 2017, 12:00 PM CST
- Expired
- Dec 13, 2017, 9:00 PM CST
- In force
- 9 hr
- Issued by
- NWS St. Louis, MO
Counties Adams County, IL, Bond County, IL, Brown County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Macoupin County, IL, Marion County, IL, Montgomery County, IL, Pike County, IL, Washington County, IL, Knox County, MO, Lewis County, MO
The radar
The St Louis radar (KLSX), 80 km from the middle of the area, began a volume at 16:18 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
Lincoln, IL (KILX), launched 12:00Z, 4.3 hours before the alert went out and 166 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
- 1162 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 361 m²/s²
- 0-3 km storm-relative helicity
- 549 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
710 WWUS73 KLSX 131620 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 1020 AM CST Wed Dec 13 2017 ...Gusty northwest this afternoon and evening... .Gusty northwest winds this afternoon and evening. ILZ058>060-064-065-069-070-074-095>097-MOZ018-019-140300- /O.NEW.KLSX.WI.Y.0006.171213T1800Z-171214T0300Z/ Adams IL-Bond IL-Brown IL-Clinton IL-Fayette IL-Greene IL-Knox MO- Lewis MO-Macoupin IL-Marion IL-Montgomery IL-Pike IL- Washington IL- Including the cities of Centralia, Litchfield, Mount Sterling, Pittsfield, Quincy, Salem, and Vandalia 1020 AM CST Wed Dec 13 2017 ...WIND ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING... The National Weather Service in Saint Louis has issued a Wind Advisory, which is in effect until 9 PM CST this evening. * TIMING...This afternoon into this evening. * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * IMPACTS...Winds this strong can make driving difficult, especially for high profile vehicles. These winds can also lift and move trash cans, lawn furniture, and other loose outdoor objects. Minor tree and building damage is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory is issued when sustained winds are forecast to be 30 to 39 mph or gusts will range between 45 and 57 mph. Winds of these magnitudes may cause minor property damage without extra precautions. Motorists in high profile vehicles should use caution until the winds diminish. && $$ Kelly
1 follow-up statement
076 WWUS73 KLSX 140257 NPWLSX URGENT - WEATHER MESSAGE National Weather Service Saint Louis MO 857 PM CST Wed Dec 13 2017 ILZ058>060-064-065-069-070-074-095>097-MOZ018-019-140400- /O.EXP.KLSX.WI.Y.0006.000000T0000Z-171214T0300Z/ Adams IL-Bond IL-Brown IL-Clinton IL-Fayette IL-Greene IL-Knox MO- Lewis MO-Macoupin IL-Marion IL-Montgomery IL-Pike IL- Washington IL- Including the cities of Centralia, Litchfield, Mount Sterling, Pittsfield, Quincy, Salem, and Vandalia 857 PM CST Wed Dec 13 2017 ...WIND ADVISORY WILL EXPIRE AT 9 PM CST THIS EVENING... Wind gusts have fallen below criteria and will continue to decrease overnight. The wind advisory will be allowed to expire. $$ Walsh
Nearby
Wind Advisories in Illinois, 2017Wind Advisories in Missouri, 2017Every wind advisory 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.