Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 182, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Nov 2, 2017, 8:50 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 40 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Nov 2, 2017, 8:50 PM CDT (01:50 UTC)
- Expired
- Nov 2, 2017, 9:30 PM CDT
- In force
- 40 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 01:51 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 |
|---|---|---|---|
| Nov 2, 8:58 PM CDT | HAIL 0.25 | Doe Run, MO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.8 hours before the alert went out and 309 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
- 332 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1599 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
010 WUUS53 KLSX 030150 SVRLSX MOC186-187-030230- /O.NEW.KLSX.SV.W.0182.171103T0150Z-171103T0230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service St Louis MO 850 PM CDT THU NOV 2 2017 The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southwestern Ste. Genevieve County in southeastern Missouri... Southwestern St. Francois County in southeastern Missouri... * Until 930 PM CDT. * At 850 PM CDT, a severe thunderstorm was located near Bismarck, moving east at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Farmington, Bismarck, Park Hills, Iron Mountain Lake, Knob Lick, Leadington, Libertyville and Doe Run. This also includes St. Joe State Park and Hawn State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3770 9064 3782 9063 3784 9020 3764 9022 TIME...MOT...LOC 0150Z 276DEG 20KT 3777 9056 HAIL...1.00IN WIND...<50MPH $$ Glass
2 follow-up statements
151 WWUS53 KLSX 030206 SVSLSX Severe Weather Statement National Weather Service St Louis MO 906 PM CDT THU NOV 2 2017 MOC186-187-030230- /O.CON.KLSX.SV.W.0182.000000T0000Z-171103T0230Z/ Ste. Genevieve MO-St. Francois MO- 906 PM CDT THU NOV 2 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR SOUTHWESTERN STE. GENEVIEVE AND SOUTHWESTERN ST. FRANCOIS COUNTIES... At 906 PM CDT, a severe thunderstorm was located over Farmington, moving east at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Farmington, Park Hills, Knob Lick, Libertyville and Doe Run. This also includes St. Joe State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3770 9062 3781 9056 3781 9020 3764 9022 TIME...MOT...LOC 0206Z 282DEG 20KT 3774 9045 HAIL...1.00IN WIND...<50MPH $$ Glass
374
WWUS53 KLSX 030228
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
928 PM CDT THU NOV 2 2017
MOC186-187-030238-
/O.EXP.KLSX.SV.W.0182.000000T0000Z-171103T0230Z/
Ste. Genevieve MO-St. Francois MO-
928 PM CDT THU NOV 2 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN STE. GENEVIEVE
AND SOUTHWESTERN ST. FRANCOIS COUNTIES WILL EXPIRE AT 930 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However small hail
and gusty winds are still possible with this thunderstorm.
LAT...LON 3770 9062 3781 9056 3781 9020 3764 9022
TIME...MOT...LOC 0228Z 276DEG 20KT 3773 9032
$$
GlassThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 2, 7:04 PM CDT | Special Weather Statement | LSX | Saint Francois | 41 min |
| Nov 2, 7:18 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 29 min |
| Nov 2, 9:32 PM CDT | Special Weather Statement | LSX | Madison | 43 min |
| Nov 2, 9:40 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison | 50 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2017Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.