Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 99, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 27, 2017, 2:58 PM CDT for 4 counties in Missouri. It was in force for 47 min. 13 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
- May 27, 2017, 2:58 PM CDT (19:58 UTC)
- Expired
- May 27, 2017, 3:45 PM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Boone County, MO, Callaway County, MO, Cole County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 116 km from the middle of the area, began a volume at 19:58 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 |
|---|---|---|---|
| May 27, 3:00 PM CDT | HAIL 1.75 | 3 Ne Loose Creek, MO | |
| May 27, 3:02 PM CDT | HAIL 1 | 3 N Linn, MO | |
| May 27, 3:07 PM CDT | HAIL 0.75 | 1 N Linn, MO | |
| May 27, 3:10 PM CDT | HAIL 0.25 | Linn, MO | |
| May 27, 3:15 PM CDT | TSTM WND DMG | 3 Ne Meta, MO | TREES DOWN ON MO HWY P. |
| May 27, 3:15 PM CDT | TSTM WND GST 40 | Meta, MO | |
| May 27, 3:15 PM CDT | TSTM WND GST 47 | 2 Ne Jefferson City, MO | |
| May 27, 3:18 PM CDT | TSTM WND DMG | New Bloomfield, MO | LARGE TREE WAS SPLIT IN HALF WITH FALLEN PORTION ON U.S. HIGHWAY 54. |
| May 27, 3:28 PM CDT | TSTM WND DMG | Freeburg, MO | TREE DOWN BLOCKING HIGHWAY 63 NEAR FREEBURG AREA. |
| May 27, 3:35 PM CDT | TSTM WND DMG | 5 W Bland, MO | MULTIPLE TREES BLOCKING ROADWAYS. POWER LINES DOWN IN BELLE. |
| May 27, 3:35 PM CDT | TSTM WND DMG | Belle, MO | MULTIPLE TREES BLOCKING ROADWAYS. POWER LINES DOWN IN BELLE. |
| May 27, 3:38 PM CDT | HAIL 1 | 2 Sse Linn, MO | |
| May 27, 3:40 PM CDT | TSTM WND DMG | 5 W Bland, MO | TREES AND POWER LINES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 27, 12:13 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.0 hours before the alert went out and 245 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
- 3187 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 766 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 9.6
The text
As transmitted.
127
WUUS53 KLSX 271958
SVRLSX
MOC019-027-051-151-272045-
/O.NEW.KLSX.SV.W.0099.170527T1958Z-170527T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
258 PM CDT SAT MAY 27 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southeastern Cole County in central Missouri...
Southeastern Boone County in central Missouri...
Callaway County in central Missouri...
Osage County in central Missouri...
* Until 345 PM CDT.
* At 258 PM CDT, severe thunderstorms were located along a line
extending from near Easley to near Centertown to 6 miles southwest
of Hickory Hill, moving east at 60 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Jefferson City, Fulton, Holts Summit, Linn, Belle, Wardsville,
Taos, New Bloomfield, Freeburg, Chamois, Westphalia, Lake Mykee
Town, St. Thomas, Rich Fountain, Lake Mykee, Meta, Mokane, Argyle,
Kingdom City and Portland.
This includes Interstate 70 in Missouri near exit 137.
This also includes Clarks Hill/Norton Historic Site and Jefferson
Landing Historic Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 700 PM CDT for central and
east central Missouri.
LAT...LON 3897 9215 3888 9165 3853 9164 3829 9165
3829 9219 3833 9220 3834 9221 3870 9222
TIME...MOT...LOC 1958Z 282DEG 54KT 3888 9241 3866 9235 3833 9243
HAIL...0.88IN
WIND...60MPH
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 11:37 AM CDT | Special Weather Statement | LSX | Gasconade | 38 min |
| May 27, 11:51 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 39 min |
| May 27, 12:31 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Washington | 44 min |
| May 27, 12:55 PM CDT | Tornado Warning | LSX | Crawford | 11 min |
| May 27, 1:14 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 46 min |
| May 27, 1:21 PM CDT | Tornado Warning | LSX | Cole, Osage | 39 min |
| May 27, 1:33 PM CDT | Special Weather Statement | LSX | Sainte Genevieve | 42 min |
| May 27, 1:39 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 37 min |
| May 27, 1:44 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 61 min |
| May 27, 1:48 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 42 min |
| May 27, 1:52 PM CDT | Tornado Warning | LSX | Reynolds | 38 min |
| May 27, 1:56 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, City of Saint Louis | 23 min |
| May 27, 1:58 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 51 min |
| May 27, 2:24 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Cole, Moniteau | 51 min |
| May 27, 2:27 PM CDT | Tornado Warning | LSX | Reynolds | 48 min |
| May 27, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 54 min |
| May 27, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Franklin, Gasconade, Montgomery, Osage, Warren | 55 min |
| May 27, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 53 min |
| May 27, 4:06 PM CDT | Tornado Warning | LSX | Crawford, Iron, Reynolds, Washington | 54 min |
| May 27, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, Warren | 34 min |
| May 27, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 56 min |
| May 27, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Sainte Genevieve, Saint Francois | 45 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.