Alert archive / Missouri / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 21, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 7, 2019, 6:50 PM CDT for Monroe County, Ralls County, Missouri. It was in force for 40 min. 5 reports 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
- Apr 7, 2019, 6:50 PM CDT (23:50 UTC)
- Expired
- Apr 7, 2019, 7:30 PM CDT
- In force
- 40 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Monroe County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 115 km from the middle of the area, began a volume at 23:51 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 |
|---|---|---|---|
| Apr 7, 6:55 PM CDT | HAIL 1.75 | 6 N Perry, MO | |
| Apr 7, 6:57 PM CDT | HAIL 1 | 4 Nnw Perry, MO | |
| Apr 7, 6:59 PM CDT | HAIL 1.75 | 4 S The Landing, MO | |
| Apr 7, 7:05 PM CDT | TSTM WND DMG | Center, MO | TRAMPOLINE DAMAGED. TREE DEBRIS COVERED NEARBY ROADS. HALF INCH DIAMETER HAIL ALSO OCCURRED. |
| Apr 7, 7:13 PM CDT | HAIL 1 | Center, MO | HAIL IS FALLING HEAVILY. |
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 12:00Z, 11.8 hours before the alert went out and 240 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
- 3 J/kg
- Mixed-layer CIN
- -361 J/kg
- Mixed-layer LCL
- 1069 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
475
WUUS53 KLSX 072350
SVRLSX
MOC137-173-080030-
/O.NEW.KLSX.SV.W.0021.190407T2350Z-190408T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
650 PM CDT SUN APR 7 2019
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Ralls County in northeastern Missouri...
Northeastern Monroe County in northeastern Missouri...
* Until 730 PM CDT.
* At 650 PM CDT, a severe thunderstorm was located 7 miles north of
Perry, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Hannibal, New London, Perry, Center, Rensselaer, Spaulding, Ilasco,
Saverton, The Landing, Florida and Indian Creek.
This also includes Mark Twain Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3964 9124 3962 9122 3960 9118 3960 9121
3951 9136 3947 9144 3945 9146 3944 9146
3944 9178 3961 9182 3969 9143 3969 9131
TIME...MOT...LOC 2350Z 261DEG 27KT 3954 9170
HAIL...1.00IN
WIND...60MPH
$$
Tilly3 follow-up statements
907
WWUS53 KLSX 072359
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
659 PM CDT SUN APR 7 2019
MOC137-080009-
/O.CAN.KLSX.SV.W.0021.000000T0000Z-190408T0030Z/
Monroe MO-
659 PM CDT SUN APR 7 2019
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONROE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3962 9122 3960 9118 3960 9121 3947 9144
3944 9146 3944 9172 3963 9171 3969 9145
3969 9131
TIME...MOT...LOC 2359Z 270DEG 24KT 3951 9162
$$
MOC173-080030-
/O.CON.KLSX.SV.W.0021.000000T0000Z-190408T0030Z/
Ralls MO-
659 PM CDT SUN APR 7 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR RALLS COUNTY...
At 659 PM CDT, a severe thunderstorm was located near Center, moving
east at 30 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Law enforcement.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Hannibal, New London, Perry, Center, Rensselaer, Spaulding, Ilasco,
Saverton and The Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.
&&
LAT...LON 3962 9122 3960 9118 3960 9121 3947 9144
3944 9146 3944 9172 3963 9171 3969 9145
3969 9131
TIME...MOT...LOC 2359Z 270DEG 24KT 3951 9162
HAIL...1.25IN
WIND...60MPH
$$
Tilly881
WWUS53 KLSX 080004
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
704 PM CDT SUN APR 7 2019
MOC173-080030-
/O.CON.KLSX.SV.W.0021.000000T0000Z-190408T0030Z/
Ralls MO-
704 PM CDT SUN APR 7 2019
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR RALLS COUNTY...
At 704 PM CDT, a severe thunderstorm was located over Center, moving
east at 30 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Law enforcement.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Hannibal, New London, Perry, Center, Rensselaer, Spaulding, Ilasco,
Saverton and The Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.
&&
LAT...LON 3962 9122 3960 9118 3960 9121 3947 9144
3944 9146 3944 9172 3963 9171 3969 9145
3969 9131
TIME...MOT...LOC 0004Z 272DEG 27KT 3950 9157
HAIL...1.75IN
WIND...60MPH
$$
Tilly842
WWUS53 KLSX 080032
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
732 PM CDT SUN APR 7 2019
MOC173-080042-
/O.EXP.KLSX.SV.W.0021.000000T0000Z-190408T0030Z/
Ralls MO-
732 PM CDT SUN APR 7 2019
...THE SEVERE THUNDERSTORM WARNING FOR RALLS COUNTY HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
LAT...LON 3962 9122 3960 9118 3960 9121 3947 9144
3944 9146 3944 9172 3963 9171 3969 9145
3969 9131
TIME...MOT...LOC 0032Z 261DEG 27KT 3953 9132
$$
TillyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 4:57 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Gasconade, Montgomery, Osage | 18 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2019Every severe thunderstorm warning in 2019
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.