Alert archive / Missouri / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 4, NWS St. Louis, MO

March 1, 2007Lewis County, Marion County, Missouri; Adams County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 1, 2007, 2:05 AM CST for Lewis County, Marion County, Missouri; Adams County, Illinois. It was in force for 55 min. 3 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: Mar 1, 2007, 2:05 AM CST (08:05 UTC)
Expired: Mar 1, 2007, 3:00 AM CST
In force: 55 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Adams County, IL, Lewis County, MO, Marion County, MO

The radar

The St Louis radar (KLSX), 154 km from the middle of the area, began a volume at 08:05 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 1, 2:25 AM CST	TSTM WND DMG	Quincy, IL	WINDOWS BLOWN OUT ON A STORE OFF ILLINOIS ROUTE 104.
Mar 1, 2:45 AM CST	TSTM WND DMG	1 W Camp Point, IL	SEVERAL POWER POLES BLOWN DOWN ONTO U.S. 24 WEST OF CAMP POINT.
Mar 1, 2:50 AM CST	TSTM WND DMG	Camp Point, IL	NUMEROUS REPORTS OF POWER LINES DOWN ALONG HWY 24

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
Mar 1, 12:16 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 8.1 hours before the alert went out and 205 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 976 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 533 m²/s²
0-3 km storm-relative helicity: 631 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLSX 010805
SVRLSX
ILC001-MOC111-127-010900-
/O.NEW.KLSX.SV.W.0004.070301T0805Z-070301T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
205 AM CST THU MAR 1 2007

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN LEWIS COUNTY IN NORTHEAST MISSOURI
  MARION COUNTY IN NORTHEAST MISSOURI
  ADAMS COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 300 AM CST

* AT 200 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 7 MILES NORTHWEST OF PHILADELPHIA TO 10 MILES SOUTH OF
  WARREN...OR ALONG A LINE EXTENDING FROM 18 MILES NORTHWEST OF
  PALMYRA TO MONROE CITY...AND MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PALMYRA...
  MAYWOOD...
  LA GRANGE...
  HANNIBAL...
  QUINCY...
  FALL CREEK...
  PAYSON...
  MENDON...
  BEVERLY...
  CAMP POINT...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

TO REPORT SEVERE WEATHER...CALL THE NEAREST LAW ENFORCEMENT AGENCY
AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN ST LOUIS.

LAT...LON 3995 9187 3963 9181 3978 9092 4022 9095
      4011 9152

$$

TES

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 9:59 PM CST	Severe Thunderstorm Warning	LSX	Marion, Monroe, Shelby	46 min
Mar 1, 2:06 AM CST	Severe Thunderstorm Warning	LSX	Lewis, Marion	54 min
Mar 1, 2:10 AM CST	Tornado Warning	LSX	Ralls	27 min
Mar 1, 2:22 AM CST	Tornado Warning	LSX	Marion	23 min
Mar 1, 3:57 AM CST	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau	48 min
Mar 1, 4:38 AM CST	Severe Thunderstorm Warning	LSX	Callaway	52 min
Mar 1, 5:05 AM CST	Severe Thunderstorm Warning	LSX	Montgomery	40 min
Mar 1, 6:58 AM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade	47 min
Mar 1, 7:12 AM CST	Tornado Warning	LSX	Crawford, Franklin	48 min
Mar 1, 7:34 AM CST	Tornado Warning	LSX	Reynolds	41 min
Mar 1, 7:53 AM CST	Tornado Warning	LSX	Franklin, Saint Charles, Saint Louis	52 min
Mar 1, 8:37 AM CST	Severe Thunderstorm Warning	LSX	Jefferson, Washington	38 min
Mar 1, 8:43 AM CST	Severe Thunderstorm Warning	LSX	Saint Charles	24 min
Mar 1, 10:47 AM CST	Wind Advisory	LSX	Audrain, Boone, Callaway, Cole, Crawford, Franklin and 23 more	13 hr
Feb 28, 10:50 PM CST	Severe Thunderstorm Warning	LSX	Adams	25 min
Mar 1, 9:05 AM CST	Severe Thunderstorm Warning	LSX	Macoupin	40 min
Mar 1, 9:28 AM CST	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	47 min
Mar 1, 9:35 AM CST	Severe Thunderstorm Warning	LSX	Bond, Fayette	28 min
Mar 1, 11:31 AM CST	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	44 min
Mar 1, 12:08 PM CST	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	52 min
Mar 1, 1:14 PM CST	Severe Thunderstorm Warning	LSX	Fayette, Marion	31 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2007 Severe Thunderstorm Warnings in Illinois, 2007 Every severe thunderstorm warning in 2007

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.