Alert archive / Missouri / Flash Flood Warnings in 2009

Flash Flood Warning 16, NWS St. Louis, MO

May 15, 2009Marion County, Missouri; Adams County, Illinois

NWS St. Louis, MO issued this flash flood warning at May 15, 2009, 2:59 PM CDT for Marion County, Missouri; Adams County, Illinois. It was in force for 5 hr. 4 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 15, 2009, 2:59 PM CDT (19:59 UTC)
Expired: May 15, 2009, 8:00 PM CDT
In force: 5 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

Counties Adams County, IL, Marion County, MO

The radar

The St Louis radar (KLSX), 148 km from the middle of the area, began a volume at 20:00 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 15, 3:02 PM CDT	HEAVY RAIN 1.34	Quincy, IL	SPOTTER REPORTED 1.34 INCHES IN 15 MINUTES IN DOWNTOWN QUINCY.
May 15, 3:40 PM CDT	FLASH FLOOD	1 N Golden, IL	WATER OVER THE ROAD ON HIGHWAY 94 NORTH OF GOLDEN. DISTANCE ESTIMATED.
May 15, 3:45 PM CDT	FLASH FLOOD	1 W Camp Point, IL	WATER OVER THE ROAD AT HIGHWAY 24 JUST WEST OF CAMP POINT.
May 15, 8:07 PM CDT	HEAVY RAIN 2.42	Quincy, IL	STORM TOTAL RAIN OF 2.42 INCHES SINCE 2 PM

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, 8.0 hours before the alert went out and 206 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: 1193 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 300 m²/s²
0-3 km storm-relative helicity: 578 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 
WGUS53 KLSX 151959
FFWLSX
ILC001-MOC127-160100-
/O.NEW.KLSX.FF.W.0016.090515T1959Z-090516T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
259 PM CDT FRI MAY 15 2009

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ADAMS COUNTY IN WEST CENTRAL ILLINOIS
  MARION COUNTY IN NORTHEAST MISSOURI

* UNTIL 800 PM CDT

* AT 254 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
  RADAR ESTIMATES OF MORE THAN TWO INCHES ARE COMMMON IN SEVERAL
  AREAS OF THESE COUNTIES.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HANNIBAL...PALMYRA...QUINCY...BEVERLY...CLAYTON...GOLDEN...
  PAYSON...PHILADELPHIA AND WARREN.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 4019 9092 3977 9092 3976 9137 3972 9137
      3969 9132 3969 9172 3966 9173 3966 9185
      3995 9184 3995 9145 4006 9151 4014 9152
      4020 9150

$$

FUCHS

1 follow-up statement

000 
WGUS73 KLSX 152121
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
421 PM CDT FRI MAY 15 2009

ILC001-MOC127-160100-
/O.CON.KLSX.FF.W.0016.000000T0000Z-090516T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-MARION MO-
421 PM CDT FRI MAY 15 2009

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARION AND ADAMS
COUNTIES UNTIL 800 PM CDT...

AT 414 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. 
DOPPLER RADAR ESTIMATED BETWEEN TWO AND FOUR INCHES OF RAINFALL 
ACROSS THE WARNED AREA.

THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE WARNED AREA. 
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO 
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
HANNIBAL...PALMYRA...QUINCY...BEVERLY...CAMP POINT... CLAYTON...FALL 
CREEK...GOLDEN...MENDON...PAYSON...PHILADELPHIA AND WARREN.

IN ADAMS COUNTY...LAW ENFORCEMENT REPORTED WATER OVER THE ROAD ON 
HIGHWAY 94 NORTH OF GOLDEN AND ON HIGHWAY 24 WEST OF CAMP POINT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.

&&

LAT...LON 4019 9092 3977 9092 3976 9137 3972 9137
      3969 9132 3969 9172 3966 9173 3966 9185
      3995 9184 3995 9145 4006 9151 4014 9152
      4020 9150

$$

FUCHS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 9:00 PM CDT	River Flood Warning	LSX	Marion	5 days
May 15, 9:08 AM CDT	River Flood Warning	LSX	Marion	48 hr
May 15, 10:49 AM CDT	Flash Flood Warning	LSX	Knox	6 hr
May 15, 11:00 AM CDT	Flash Flood Warning	LSX	Knox	6 hr
May 15, 11:25 AM CDT	Flash Flood Warning	LSX	Lewis	6 hr
May 15, 11:38 AM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis	25 min
May 15, 12:13 PM CDT	River Flood Warning	LSX	Lewis	4 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Marion	5 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Marion	5 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Marion	6 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Ralls	6 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Pike	7 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Pike	7 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Lincoln	8 days
May 15, 12:13 PM CDT	River Flood Warning	LSX	Saint Charles	10 days
May 15, 2:19 PM CDT	Flash Flood Warning	LSX	Shelby	6 hr
May 15, 2:43 PM CDT	Severe Thunderstorm Warning	LSX	Marion	47 min
May 15, 2:49 PM CDT	Tornado Warning	LSX	Marion, Ralls	26 min
May 15, 4:30 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Marion, Monroe, Ralls, Shelby	45 min
May 15, 4:48 PM CDT	Flash Flood Warning	LSX	Knox, Lewis, Marion, Shelby	6 hr
May 15, 5:03 PM CDT	Tornado Warning	LSX	Audrain, Monroe, Pike, Ralls	42 min
May 15, 5:12 PM CDT	Flash Flood Warning	LSX	Audrain, Boone, Monroe, Pike, Ralls	6 hr
May 15, 5:12 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Lincoln, Marion, Monroe, Montgomery and 2 more	63 min
May 15, 5:28 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau	47 min
May 15, 5:44 PM CDT	Tornado Warning	LSX	Lincoln, Pike	31 min
May 15, 6:06 PM CDT	Tornado Warning	LSX	Lincoln, Pike	39 min
May 15, 6:09 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	51 min
May 15, 6:24 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	19 min
May 15, 6:29 PM CDT	Flash Flood Warning	LSX	Callaway, Lincoln, Montgomery	5 hr
May 15, 6:59 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	46 min
May 15, 3:13 PM CDT	Tornado Warning	LSX	Adams, Brown, Pike	47 min
May 15, 3:55 PM CDT	River Flood Warning	LSX	Brown	8 days
May 15, 4:03 PM CDT	Areal Flood Advisory	LSX	Brown	4 hr
May 15, 5:40 PM CDT	Severe Thunderstorm Warning	LSX	Pike	35 min

Nearby

Flash Flood Warnings in Missouri, 2009 Flash Flood Warnings in Illinois, 2009 Every flash flood warning 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.