Alert archive / Illinois / Flash Flood Warnings in 2014

Flash Flood Warning 21, NWS Quad Cities, IA

June 30, 2014Bureau County, Putnam County, Illinois

NWS Quad Cities, IA issued this flash flood warning at Jun 30, 2014, 8:29 PM CDT for Bureau County, Putnam County, Illinois. It was in force for 6 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: Jun 30, 2014, 8:29 PM CDT (01:29 UTC)
Expired: Jul 1, 2014, 2:30 AM CDT
In force: 6 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: None

Counties Bureau County, IL, Putnam County, IL

The radar

The Quad Cities radar (KDVN), 102 km from the middle of the area, began a volume at 01:31 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
Jun 30, 10:00 PM CDT	FLASH FLOOD	Granville, IL	MANY ROADS CLOSED IN COUNTY DUE TO EVENING FLASH FLOOD EVENT. SITUATION IS STABLE AND IMPROVING AS OF 130 AM. TIME AND LOCATION ESTIMATED FOR COUNTY WIDE EVENT.

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 00:00Z, 1.5 hours before the alert went out and 96 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: 157 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 1059 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 268 m²/s²
0-3 km storm-relative helicity: 552 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

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

706 
WGUS53 KDVN 010129
FFWDVN
ILC011-155-010730-
/O.NEW.KDVN.FF.W.0021.140701T0129Z-140701T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
829 PM CDT MON JUN 30 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BUREAU COUNTY IN NORTH CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF PRINCETON...
  PUTNAM COUNTY IN NORTH CENTRAL ILLINOIS...
  THIS INCLUDES THE CITY OF HENNEPIN...

* UNTIL 230 AM CDT TUESDAY

* AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN APPROACHING THE WARNED AREA.
  THESE STORMS WILL PRODUCE 1 TO 2 INCHES OF RAIN IN 2 HOURS OR
  LESS OVER SATURATED GROUND.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALNUT AND
  LA MOILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING...ESPECIALLY WHILE DRIVING.

&&

LAT...LON 4111 8935 4113 8933 4115 8933 4115 8963
      4123 8964 4124 8986 4158 8986 4159 8917
      4111 8916

$$

08

1 follow-up statement

069 
WGUS73 KDVN 010729
FFSDVN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
229 AM CDT TUE JUL 1 2014

ILC011-155-010738-
/O.EXP.KDVN.FF.W.0021.000000T0000Z-140701T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PUTNAM IL-BUREAU IL-
229 AM CDT TUE JUL 1 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 230 AM CDT FOR BUREAU AND
PUTNAM COUNTIES...

LAW ENFORCEMENT REPORTS ALL AREAS OF FLASH FLOODING AFFECTING ROADS 
HAVE EITHER RECEEDED OR BEEN CLOSED OFF FROM TRAVEL. NO NEW WATER 
PROBLEMS HAVE BEEN REPORTED...THEREFORE THE FLASH FLOOD WARNING HAS 
BEEN ALLOWED TO EXPIRE.

LAT...LON 4111 8935 4113 8933 4115 8933 4115 8963
      4123 8964 4124 8986 4158 8986 4159 8917
      4111 8916

$$

ERVIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 7:27 PM CDT	Special Weather Statement	DVN	Carroll, Jo Daviess	63 min
Jun 30, 8:02 PM CDT	Special Weather Statement	DVN	Henry, Mercer, Rock Island, Warren	58 min
Jun 30, 8:08 PM CDT	Flash Flood Warning	DVN	Carroll, Whiteside	6 hr
Jun 30, 8:25 PM CDT	Flash Flood Warning	DVN	Stephenson	6 hr
Jun 30, 8:36 PM CDT	Special Weather Statement	DVN	Bureau, Henderson, Henry, Putnam, Warren	54 min
Jun 30, 8:44 PM CDT	Special Weather Statement	DVN	Mercer, Warren	61 min
Jun 30, 9:03 PM CDT	Special Weather Statement	DVN	Hancock, McDonough	57 min
Jun 30, 9:32 PM CDT	Severe Thunderstorm Warning	DVN	McDonough	32 min
Jun 30, 9:43 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	47 min
Jun 30, 10:01 PM CDT	Severe Thunderstorm Warning	DVN	McDonough	44 min
Jun 30, 10:32 PM CDT	Areal Flood Warning	DVN	Rock Island	12 hr

Nearby

Flash Flood Warnings in Illinois, 2014 Every flash flood warning in 2014

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.