Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 12, NWS Quad Cities, IA

May 30, 2004Putnam County, Illinois

NWS Quad Cities, IA issued this flash flood warning at May 30, 2004, 10:01 AM CDT for Putnam County, Illinois. 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: May 30, 2004, 10:01 AM CDT (15:01 UTC)
Expired: May 30, 2004, 2:00 PM CDT
In force: 4 hr
Issued by: NWS Quad Cities, IA
Area: Counties, with a storm outline in the text

County Putnam County, IL

What was reported inside it

Time	Report	Where	Remark
May 30, 11:14 AM CDT	FLASH FLOOD	Henry, IL	STREETS WERE FLOODED FOR SHORT TIME IN TOWN AND CREEKS WEST OF TOWN WERE RUNNING HIGH BUT NOT YET OUT OF BANKS.

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

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 3.0 hours before the alert went out and 131 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: 1629 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 569 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 201 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KDVN 301503
FFWDVN
ILC155-301900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1001 AM CDT SUN MAY 30 2004

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PUTNAM COUNTY IN NORTH CENTRAL ILLINOIS

* UNTIL 200 PM CDT

* AT 959 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODING MOVING ACROSS 
  PUTNAM COUNTY.  

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MC NABB...
  GRANVILLE...STANDARD...HENNEPIN...AND MAGNOLIA.  

ADDITIONAL RAINFALL OF UP TO AN INCH IS EXPECTED.

DO NOT DRIVE ON FLOODED ROADS. MOST FATALITIES OCCUR IN VEHICLES
SWEPT AWAY BY FLOOD WATERS AS SHALLOW AS 1 FOOT.  TURN AROUND AND 
FIND ANOTHER ROUTE

FLOODING OF SMALL STREAMS AND CREEKS...HIGHWAYS AND STREETS...
UNDERPASSES AND LOW LYING URBAN AND RURAL AREAS IS LIKELY.

DO NOT ALLOW KIDS TO PLAY IN OR NEAR FLOODED AREAS SUCH AS DITCHES...
CULVERTS AND LOW LYING AREAS.

IF YOU ARE CAMPING NEAR A STREAM...CREEK OR OTHER LOW-LYING AREA...
MOVE IMMEDIATELY TO HIGHER GROUND.

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

LAT...LON 4119 8945 4110 8939 4113 8920 4133 8918

$$

33

1 follow-up statement

000 
WGUS73 KDVN 301830
FFSDVN
IAC163-ILC011-073-131-155-161-195-301900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED TIME
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
130 PM CDT SUN MAY 30 2004

THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 2 PM FOR...

  SCOTT COUNTY, IOWA, AND WHITESIDE, ROCK ISLAND, BUREAU, HENRY, PUTNAM,
  AND MERCER COUNTIES IN ILLINOIS. 

FLOOD WATERS ARE BEGINNING TO RECEDE.  ROADS MAY STILL BE WATER COVERED 
IN SPOTS... AND SOME ROADS HAVE WASHED OUT. DO NOT DRIVE INTO AREAS WHERE 
WATER COVERS THE ROAD  TURN AROUND AND FIND ANOTHER ROUTE

ADDITIONAL RAINFALL THIS AFTERNOON OR EVENING MAY CAUSE ADDITIONAL 
FLOODING. STAY ALERT FOR CHANGING CONDITIONS OR RISING WATER.


LAT...LON 4128 9108 4110 9095 4109 9060 4118 8989
          4132 8936 4155 8922 4193 8965 4194 9017
          4175 9018

$$

33

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this flash flood warning went out at May 30, 4:58 AM CDT, 5 hours 3 minutes earlier.

Area forecast discussion, May 30, 4:58 AM CDT, 5 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
458 AM CDT SUN MAY 30 2004

.SYNOPSIS...
STRONG STORM SYSTEM TO AFFECT THE AREA TODAY AND THIS EVENING
BRINGING ANOTHER ROUND OF MODERATE TO HEAVY RAIN TO THE AREA.
SEVERE WEATHER ALSO POSSIBLE THIS AFTERNOON AND EVENING WITH THE
MOST LIKELY AREA SOUTH AND EAST OF AN OTTUMWA...QUAD CITIES...TO LA
SALLE PERU LINE.

&&

.DISCUSSION...

TODAY AND TONIGHT...VIGOROUS STORM SYSTEM TO MOVE THROUGH THE AREA
BRINGING MODERATE TO HEAVY RAIN THIS MORNING AND EARLY AFTERNOON.
MODELS SUGGEST A POSSIBLE TRIPLE POINT TO MOVE THROUGH THE CWFA
DURING THE AFTERNOON/EVENING HOURS WHICH WOULD ENHANCE SEVERE
POTENTIAL. SEVERE POTENTIAL LOOKS TO BE MAINLY HAIL/HIGH WINDS BUT
OUTFLOW BOUNDARIES LEFT OVER FROM THE EARLY MORNING CONVECTION MAY
ALLOW ISOLATED TORNADOES TO DEVELOP. AFTER MIDNIGHT TONIGHT QUIETER
WX TO SETTLE OVER THE CWFA. LOCALLY HEAVY RAIN STILL LOOKS ON TRACK
SO WILL KEEP CURRENT FLOOD WATCH GOING.

MONDAY THROUGH NEXT SUNDAY...STRONG CYCLONIC FLOW TO REMAIN ACROSS
THE REGION MONDAY THROUGH WEDNESDAY WITH UPPER LOW TO DRIFT
SOUTHEAST THROUGH THE AREA. VORT MAXES RIPPLING ALONG IN THE FLOW TO
PRODUCE AFTERNOON AND EVENING SHRA WITH SOME TSRA POSSIBLE ON MONDAY.
QUIET WX THEN EXPECTED FOR THURSDAY FRIDAY AS HIGH PRESSURE SETTLES
OVER THE AREA. MODELS DISAGREE SOMEWHAT ON DEVELOPMENT OF NEXT SYSTEM
FOR THE WEEKEND BUT STRONG WAA RETURN FLOW SHOULD ALLOW PRECIP TO
BREAK OUT FRIDAY NIGHT INTO SATURDAY. STRONG CYCLONIC FLOW ON SUNDAY
SHOULD BE ENOUGH TO ALLOW SCATTERED SHRA TO DEVELOP DURING THE
AFTERNOON HOURS.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...FLOOD WATCH THROUGH NOON.
IA...IAZ040>042-051>054
IL...NONE.
MO...NONE.

&&

08

Hazardous weather outlook, May 30, 5:20 AM CDT, 4 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
520 AM CDT SUN MAY 30 2004

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-311000-
BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO-
CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL-
HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA-
JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA-
MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL-
SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL-
WASHINGTON IA-WHITESIDE IL-
520 AM CDT SUN MAY 30 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST IOWA...
EAST CENTRAL IOWA...SOUTHEAST IOWA...NORTHWEST ILLINOIS...NORTH
CENTRAL ILLINOIS...WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI.

.DAY ONE...TODAY AND TONIGHT

A STRONG STORM SYSTEM WILL AFFECT THE AREA TODAY AND TONIGHT
BRINGING ANOTHER ROUND OF MODERATE TO HEAVY RAINFALL. RAIN WITH
EMBEDDED THUNDERSTORMS WILL CONTINUE THROUGH THE DAY AND INTO THE
EVENING HOURS. GENERAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED
WITH OVER 2 INCHES POSSIBLE WITH THE THUNDERSTORMS. DUE TO SATURATED
SOILS...RAINFALL OF THIS MAGNITUDE WOULD RAPIDLY RUN OFF INTO STREAMS
AND RIVERS AND CAUSE RENEWED FLOODING.

SUFFICIENT WIND SHEAR IS PRESENT TO ALLOW SEVERE STORMS TO DEVELOP
DURING THE AFTERNOON AND EVENING HOURS. THE AREA MOST AT RISK
APPEARS TO BE SOUTH AND EAST OF A LINE FROM OTTUMWA...TO THE QUAD
CITIES...TO PERU ILLINOIS. LARGE HAIL AND DAMAGING WINDS ARE THE
PRIMARY SEVERE THREAT...BUT ISOLATED TORNADOES ARE ALSO POSSIBLE.

ALTHOUGH LESS CERTAIN...ANOTHER AREA OF SEVERE WEATHER MAY OCCUR
NORTH OF HIGHWAY 30. WIND SHEAR IN THIS AREA IS EXPECTED TO INCREASE
DURING THE LATE AFTERNOON AND EVENING HOURS AS AN AREA OF LOW
PRESSURE MOVES UP THE MISSISSIPPI RIVER VALLEY. IF THIS OCCURS...
ISOLATED SEVERE STORMS WOULD BE POSSIBLE WITH DAMAGING WINDS THE
PRIMARY THREAT.

IF SEVERE WEATHER DOES OCCUR...THE MOST LIKELY TIME PERIOD WOULD BE
FROM 3 PM UNTIL 10 PM.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH NEXT SUNDAY

UNSETTLED WEATHER IS EXPECTED MONDAY THROUGH WEDNESDAY...WITH
AFTERNOON AND EVENING SHOWERS. THE MOST LIKELY TIME PERIOD FOR ANY
THUNDERSTORMS WOULD BE MONDAY AFTERNOON AND EVENING.

ANOTHER STORM SYSTEM IS CURRENTLY FORECAST TO AFFECT THE REGION
LATE FRIDAY NIGHT THROUGH NEXT SUNDAY. THUNDERSTORMS WILL BE
POSSIBLE ON SATURDAY AND SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LATE THIS AFTERNOON AND THIS EVENING
ALONG AND SOUTH OF INTERSTATE 80.

08

In the hours before

Local storm report, May 30, 8:51 AM CDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
851 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0656 AM     TSTM WND DMG     FORT MADISON            40.62N 91.35W
05/30/2004                   LEE                IA   TRAINED SPOTTER

            MANY TREES DOWN. ONE TREE DESTROYED TRAILER HOME BY
            FALLING THROUGH THE CENTER OF IT.

&&

ERVIN

Local storm report, May 30, 8:53 AM CDT, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT ... CORRECTION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
853 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0825 AM     FLASH FLOOD      DAVENPORT               41.56N 90.60W
05/30/2004                   SCOTT              IA   TRAINED SPOTTER

            DUCK CREEK OUT OF BANKS AT JERSEY RIDGE ROAD.

0821 AM     FLASH FLOOD      CARBON CLIFF            41.50N 90.39W
05/30/2004                   ROCK ISLAND        IL   TRAINED SPOTTER

            CREEK OUT OF BANKS.

&&

ERVIN

Local storm report, May 30, 9:17 AM CDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
917 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0914 AM     FLASH FLOOD      ALEDO                   41.20N 90.75W
05/30/2004                   MERCER             IL   LAW ENFORCEMENT

            45TH STREET CLOSED OUTSIDE NEW BOSTON. WATER FLOWING OVER
            HIGHWAY 67 IN SPOTS.

&&

DMD

Local storm report, May 30, 9:21 AM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
921 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0914 AM     TSTM WND DMG     1 S PRINCETON           41.36N 89.47W
05/30/2004                   BUREAU             IL   LAW ENFORCEMENT

            POWER LINES DOWN NEAR MILE MARKER 52 ALONG INTERSTATE 80.

&&

ERVIN

Local storm report, May 30, 9:49 AM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
949 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0948 AM     HEAVY RAIN       FAIRFIELD               41.01N 91.97W
05/30/2004  4.20 INCH        JEFFERSON          IA   TRAINED SPOTTER

            RAIN AMOUNT SINCE MIDNIGHT.

&&

MCCLURE

Local storm report, May 30, 10:01 AM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1001 AM CDT SUN MAY 30 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0900 AM     FLASH FLOOD      1 SE KEWANEE            41.23N 89.91W
05/30/2004                   HENRY              IL   TRAINED SPOTTER

            CREEKS, STREAMS, AND CANALS OVER BANKS. WATER FLOWING
            OVER ROADS BETWEEN CASTLETON AND KEWANEE.

&&

ERVIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 7:27 AM CDT	Severe Thunderstorm Warning	DVN	Hancock, McDonough	78 min
May 30, 7:33 AM CDT	Severe Thunderstorm Warning	DVN	Henry	57 min
May 30, 7:53 AM CDT	Flash Flood Warning	DVN	Bureau, Henry, Mercer, Rock Island, Whiteside	6 hr
May 30, 8:58 AM CDT	Severe Thunderstorm Warning	DVN	Bureau	62 min
May 30, 2:18 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	42 min
May 30, 2:29 PM CDT	Tornado Warning	DVN	Hancock	46 min
May 30, 2:45 PM CDT	Tornado Warning	DVN	Henderson	45 min
May 30, 3:11 PM CDT	Tornado Warning	DVN	Hancock, McDonough, Warren	49 min
May 30, 3:57 PM CDT	Severe Thunderstorm Warning	DVN	Henry	48 min
May 30, 4:03 PM CDT	Tornado Warning	DVN	McDonough, Warren	27 min
May 30, 4:48 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	57 min
May 30, 4:51 PM CDT	Flash Flood Warning	DVN	Bureau, Henry, Putnam	54 min
May 30, 4:51 PM CDT	Flash Flood Warning	DVN	Bureau, Henry, Putnam	3 hr
May 30, 4:54 PM CDT	Tornado Warning	DVN	Bureau, Whiteside	51 min
May 30, 5:02 PM CDT	Flash Flood Warning	DVN	McDonough	3 hr

Nearby

Flash Flood Warnings in Illinois, 2004 Every flash flood warning in 2004

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.