Alert archive / Missouri / Tornado Warnings in 2009

Tornado Warning 9, NWS Quad Cities, IA

May 13, 2009Scotland County, Missouri

NWS Quad Cities, IA issued this tornado warning at May 13, 2009, 6:04 PM CDT for Scotland County, Missouri. It was in force for 41 min. 2 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 13, 2009, 6:04 PM CDT (23:04 UTC)
Expired
May 13, 2009, 6:45 PM CDT
In force
41 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon

County Scotland County, MO

The radar

The Des Moines radar (KDMX), 193 km from the middle of the area, began a volume at 23:03 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

TimeReportWhereRemark
May 13, 6:30 PM CDTHAIL 110 Sw Memphis, MOHAIL LASTED FOR 3 OR 4 MINUTES. TIME ESTIMATED.
May 13, 6:50 PM CDTHAIL 110 Sw Memphis, MOHAIL LASTED FOR 3 OR 4 MINUTES.

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.

IssuedProductOfficeLasted
May 13, 2:39 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.1 hours before the alert went out and 200 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2009-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2009-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 332 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
556 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
332 m²/s²
0-3 km storm-relative helicity
344 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 
WFUS53 KDVN 132304
TORDVN
MOC199-132345-
/O.NEW.KDVN.TO.W.0009.090513T2304Z-090513T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
604 PM CDT WED MAY 13 2009

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN SCOTLAND COUNTY IN NORTHEAST MISSOURI...

* UNTIL 645 PM CDT.

* AT 602 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 11 MILES SOUTHWEST OF INDIAN HILLS CA...OR 14 MILES WEST OF
  EDINA...MOVING NORTHEAST AT 35 MPH. 

* THE TORNADO WILL BE NEAR...
  INDIAN HILLS CA AND BIBLE GROVE AROUND 620 PM CDT...
  SPILLMAN MOUND AROUND 625 PM CDT...
  SAND HILL AROUND 630 PM CDT...
  RUTLEDGE AROUND 635 PM CDT...
  SOUTH GORIN AROUND 640 PM CDT...
  ETNA...GRANGER AND ARBELA AROUND 645 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST
MISSOURI.

&&

LAT...LON 4045 9236 4055 9196 4030 9195 4030 9235
      4031 9236 4044 9237
TIME...MOT...LOC 2304Z 245DEG 32KT 4024 9241

$$

ERVIN
2 follow-up statements
000 
WWUS53 KDVN 132317
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
617 PM CDT WED MAY 13 2009

MOC199-132345-
/O.CON.KDVN.TO.W.0009.000000T0000Z-090513T2345Z/
SCOTLAND MO-
617 PM CDT WED MAY 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN
SCOTLAND COUNTY...

AT 616 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED APPROXIMATELY NEAR
INDIAN HILLS CA...OR 11 MILES NORTHWEST OF EDINA...MOVING EAST AT 25
MPH.

THE TORNADO WILL BE NEAR...
  INDIAN HILLS CA AND BIBLE GROVE AROUND 625 PM CDT...
  SPILLMAN MOUND AND SAND HILL AROUND 640 PM CDT...
  RUTLEDGE...SOUTH GORIN AND 9 MILES SOUTH OF MEMPHIS AROUND 645 PM
  CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS ALREADY PRODUCED A TORNADO AND REMAINS A THREAT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST
MISSOURI.

&&

LAT...LON 4045 9236 4055 9196 4030 9195 4030 9235
      4031 9236 4044 9237
TIME...MOT...LOC 2317Z 248DEG 22KT 4028 9233

$$

ERVIN
000 
WWUS53 KDVN 132334
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
634 PM CDT WED MAY 13 2009

MOC199-132345-
/O.CON.KDVN.TO.W.0009.000000T0000Z-090513T2345Z/
SCOTLAND MO-
634 PM CDT WED MAY 13 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN
SCOTLAND COUNTY...

AT 633 PM CDT...TRAINED SPOTTERS REPORTED A WALL CLOUD ALONG THE 
KNOX AND SCOTLAND COUNTY LINE...SOUTH OF BIBLE GROVE. THIS STORM 
CONTINUES TO PRODUCE A TORNADO ACROSS NORTHERN KNOX COUNTY...NEAR 
BARING. THIS IS AN EXTREMELY DANGEROUS STORM...MOVING EAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  SPILLMAN MOUND AROUND 640 PM CDT...
  SAND HILL...RUTLEDGE...SOUTH GORIN AND 9 MILES SOUTH OF MEMPHIS
  AROUND 645 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS ALREADY PRODUCED A TORNADO AND REMAINS A THREAT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST
MISSOURI.

&&

LAT...LON 4045 9236 4055 9196 4030 9195 4030 9235
      4031 9236 4044 9237
TIME...MOT...LOC 2333Z 248DEG 22KT 4032 9221

$$

ERVIN

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 11:53 AM CDTSpecial Weather StatementDVNScotland37 min
May 13, 6:46 PM CDTTornado WarningDVNClark, Scotland59 min

Nearby

Tornado Warnings in Missouri, 2009Every tornado warning in 2009Tornadoes in 2009

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.