Alert archive / Missouri / Flash Flood Warnings in 2011

Flash Flood Warning 57, NWS Springfield, MO

July 13, 2011Laclede County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 13, 2011, 3:02 AM CDT for Laclede County, Missouri. It was in force for 4 hr. 1 report 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: Jul 13, 2011, 3:02 AM CDT (08:02 UTC)
Expired: Jul 13, 2011, 6:45 AM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Flood severity: None

County Laclede County, MO

The radar

The Springfield radar (KSGF), 96 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
Jul 13, 3:13 AM CDT	FLASH FLOOD	Lebanon, MO	EXCESSIVE RAINFALL CAUSED FLASH FLOODING ON NUMEROUS STREETS WITHIN THE CITY OF LEBANON.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.0 hours before the alert went out and 147 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: 1117 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 2434 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 32 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.

555 
WGUS53 KSGF 130802
FFWSGF
MOC105-131400-
/O.NEW.KSGF.FF.W.0057.110713T0802Z-110713T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
302 AM CDT WED JUL 13 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LACLEDE COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 900 AM CDT.

* AT 255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE  
  MUCH OF LACLEDE COUNTY...INCLUDING THE CITY OF LEBANON. RAINFALL 
  RATES IN SOME OF THE STRONGER STORMS ARE EXCEEDING TWO INCHES PER
  HOUR.  ADDITIONAL RAINFALL WILL LIKELY CAUSE AREAS OF FLASH FLOODING
  TO OCCUR ACROSS THE COUNTY...PARTICULARLY WITHIN THE CITY OF 
  LEBANON. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. CREEKS...STREAMS AND LOW WATER CROSSINGS WILL BE ESPECIALLY
  SUSCEPTIBLE TO THE DANGERS OF FLASH FLOODING.

THIS WARNING INCLUDES BUT IS NOT LIMITED TO THE FOLLOWING LOW WATER
CROSSINGS...

ROUTE J AT PARKS CREEK 2 MILES EAST OF MORGAN...
ROUTE B AT COBB CREEK 8 MILES SOUTHEAST OF LEBANON...
ROUTE BB AT DRY AUGLAIZE CREEK 4 MILES NORTH OF SLEEPER...
ROUTE O AT COBB CREEK 5 MILES NORTHWEST OF COMPETITION...
NEXUS DRIVE EAST OF PHILLIPSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3780 9256 3780 9254 3783 9249 3783 9246
      3786 9241 3771 9241 3764 9225 3748 9225
      3749 9285 3789 9286 3790 9263

$$

CRAMER

1 follow-up statement

009 
WGUS73 KSGF 131145
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
645 AM CDT WED JUL 13 2011

MOC105-131155-
/O.CAN.KSGF.FF.W.0057.000000T0000Z-110713T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LACLEDE MO-
645 AM CDT WED JUL 13 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR LACLEDE COUNTY...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3780 9256 3780 9254 3783 9249 3783 9246
      3786 9241 3771 9241 3764 9225 3748 9225
      3749 9285 3789 9286 3790 9263

$$

CRAMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 10:38 PM CDT	Special Weather Statement	SGF	Miller	37 min
Jul 12, 10:52 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Morgan	53 min
Jul 12, 11:53 PM CDT	Special Weather Statement	SGF	Camden, Miller	67 min
Jul 13, 12:29 AM CDT	Flash Flood Warning	SGF	Benton, Camden, Maries, Miller, Morgan	6 hr
Jul 13, 12:54 AM CDT	Flash Flood Warning	SGF	Phelps, Pulaski	5 hr
Jul 13, 1:04 AM CDT	Special Weather Statement	SGF	Maries	56 min
Jul 13, 1:26 AM CDT	Severe Thunderstorm Warning	SGF	Webster	49 min
Jul 13, 2:03 AM CDT	Severe Thunderstorm Warning	SGF	Laclede, Wright	57 min
Jul 13, 3:24 AM CDT	Flash Flood Warning	SGF	Shannon	6 hr

Nearby

Flash Flood Warnings in Missouri, 2011 Every flash flood warning in 2011

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.