Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 42, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 29, 2017, 8:34 PM CDT for Marion County, Monroe County, Ralls County, Missouri. It was in force for 26 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
- Mar 29, 2017, 8:34 PM CDT (01:34 UTC)
- Expired
- Mar 29, 2017, 9:00 PM CDT
- In force
- 26 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Marion County, MO, Monroe County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 147 km from the middle of the area, began a volume at 01:36 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 |
|---|---|---|---|
| Mar 29, 8:37 PM CDT | HAIL 1 | Monroe City, MO | DIME TO QUARTER |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.6 hours before the alert went out and 230 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
- 793 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 549 m²/s²
- 0-3 km storm-relative helicity
- 1167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
609
WUUS53 KLSX 300134
SVRLSX
MOC127-137-173-300200-
/O.NEW.KLSX.SV.W.0042.170330T0134Z-170330T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
834 PM CDT WED MAR 29 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northwestern Ralls County in northeastern Missouri...
Marion County in northeastern Missouri...
Northeastern Monroe County in northeastern Missouri...
* Until 900 PM CDT.
* At 834 PM CDT, a severe thunderstorm was located over Monroe City,
moving north at 60 mph.
HAZARD...Quarter size hail.
SOURCE...Trained weather spotters.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Palmyra, Monroe City, Warren, Philadelphia, Taylor, Stoutsville,
The Landing and Indian Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 3995 9149 3954 9162 3953 9188 3966 9185
3995 9183
TIME...MOT...LOC 0134Z 191DEG 52KT 3964 9173
HAIL...1.00IN
WIND...<50MPH
$$
Tilly1 follow-up statement
235
WWUS53 KLSX 300200
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
900 PM CDT WED MAR 29 2017
MOC127-137-173-300210-
/O.EXP.KLSX.SV.W.0042.000000T0000Z-170330T0200Z/
Ralls MO-Marion MO-Monroe MO-
900 PM CDT WED MAR 29 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RALLS...MARION
AND NORTHEASTERN MONROE COUNTIES HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore the warning has been allowed to expire.
LAT...LON 3995 9149 3954 9162 3953 9188 3966 9185
3995 9183
TIME...MOT...LOC 0200Z 191DEG 52KT 3999 9164
$$
TillyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:22 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 27 min |
| Mar 29, 8:46 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 59 min |
| Mar 29, 8:55 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 35 min |
| Mar 29, 9:57 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole | 36 min |
| Mar 30, 10:55 AM CDT | Special Weather Statement | LSX | Franklin | 35 min |
| Mar 30, 11:12 AM CDT | Special Weather Statement | LSX | Saint Charles, Saint Louis | 33 min |
| Mar 30, 11:25 AM CDT | Special Weather Statement | LSX | Saint Charles | 35 min |
| Mar 30, 12:05 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 40 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.