Alert archive / Kansas / Flash Flood Warnings in 2012

Flash Flood Warning 17, NWS Springfield, MO

April 30, 2012Crawford County, Kansas

NWS Springfield, MO issued this flash flood warning at Apr 30, 2012, 11:22 PM CDT for Crawford County, Kansas. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 30, 2012, 11:22 PM CDT (04:22 UTC)
Expired
May 1, 2012, 5:00 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

County Crawford County, KS

The radar

The Springfield radar (KSGF), 138 km from the middle of the area, began a volume at 04:26 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.4 hours before the alert went out and 121 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, Springfield, MO at 00:00Z on 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 202 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 00:00Z on 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.19395878Sfc1 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
202 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1176 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
142 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.

439 
WGUS53 KSGF 010422
FFWSGF
KSC037-011000-
/O.NEW.KSGF.FF.W.0017.120501T0422Z-120501T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1122 PM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAWFORD COUNTY IN SOUTHEAST KANSAS...

* UNTIL 500 AM CDT.

* AT 1117 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS CRAWFORD
  COUNTY. ADDITIONAL THUNDERSTORMS WITH EXCESSIVE RAINFALL CONTINUE  
  OVER TO TRACK OVER CRAWFORD COUNTY...CAUSING FLASH FLOODING IN 
  SEVERAL AREAS. RAINFALL AMOUNTS COULD TOTAL UP TO THREE INCHES.

* 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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3767 9509 3767 9508 3768 9488 3767 9462
      3742 9461 3734 9462 3734 9508 3738 9508
      3739 9509

$$

CRAMER
2 follow-up statements
971 
WGUS73 KSGF 010732
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
232 AM CDT TUE MAY 1 2012

KSC037-011000-
/O.CON.KSGF.FF.W.0017.000000T0000Z-120501T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD KS-
232 AM CDT TUE MAY 1 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
CRAWFORD COUNTY...

AT 227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
EXCESSIVE RAINFALL WAS PRODUCING FLASH FLOODING ACROSS THE WARNED 
AREA. RADAR ESTIMATED THAT THREE TO SIX INCHES OF RAIN FELL IN 
SOUTHEAST CRAWFORD COUNTY...NEAR PITTSBURG...CHICOPEE...AND CHEROKEE.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 3767 9509 3767 9508 3768 9488 3767 9462
      3742 9461 3734 9462 3734 9508 3738 9508
      3739 9509

$$

CRAMER
922 
WGUS73 KSGF 010955
FFSSGF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
455 AM CDT TUE MAY 1 2012

KSC037-011005-
/O.EXP.KSGF.FF.W.0017.000000T0000Z-120501T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAWFORD KS-
455 AM CDT TUE MAY 1 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 500 AM CDT FOR CRAWFORD
COUNTY...

RAINFALL HAS COME TO AN END ACROSS THE WARNED AREA...AND WATER 
LEVELS ON AREA CREEKS AND STREAMS WILL BEGIN TO RECEDE THIS MORNING. 
FLOODING WILL CONTINUE IN MANY PLACES TODAY HOWEVER...AND THE FLASH 
FLOOD WARNING HAS BEEN REPLACED BY AN AREAL FLOOD WARNING.

IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL 
LAW ENFORCEMENT AGENCY.

LAT...LON 3767 9509 3767 9508 3768 9488 3767 9462
      3742 9461 3734 9462 3734 9508 3738 9508
      3739 9509

$$

BOXELL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 10:53 PM CDTFlash Flood WarningSGFCherokee6 hr
Apr 30, 11:43 PM CDTFlash Flood WarningSGFBourbon5 hr
May 1, 12:21 AM CDTSevere Thunderstorm WarningSGFCherokee24 min
May 1, 1:26 AM CDTSevere Thunderstorm WarningSGFCherokee34 min
May 1, 4:49 AM CDTAreal Flood WarningSGFBourbon, Cherokee, Crawford27 hr
May 1, 8:35 AM CDTRiver Flood WarningSGFCherokee34 hr

Nearby

Flash Flood Warnings in Kansas, 2012Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.