Alert archive / Illinois / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 110, NWS Quad Cities, IA

June 30, 20144 counties in Illinois; 4 counties in Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 30, 2014, 3:44 PM CDT for 4 counties in Illinois; 4 counties in Iowa. It was in force for 46 min. 7 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
Jun 30, 2014, 3:44 PM CDT (20:44 UTC)
Expired
Jun 30, 2014, 4:30 PM CDT
In force
46 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Clinton County, IA, Dubuque County, IA, Jackson County, IA, Scott County, IA, Carroll County, IL, Jo Daviess County, IL, Rock Island County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 59 km from the middle of the area, began a volume at 20:44 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

TimeReportWhereRemark
Jun 30, 3:45 PM CDTTSTM WND DMGBernard, IA4 TRAILORS DAMAGED OR DESTROYED. WIDESPREAD TREE DAMAGE. 100 YD WIDE PATH .75 MILES LONG OF 50-70 PERCENT OF TREES DOWN OR SNAPPED OFF.
Jun 30, 3:45 PM CDTTSTM WND GST 90Bernard, IAESTIMATED 80 TO 90 MPH BASED ON WIDESPREAD DAMAGE IN TOWN.
Jun 30, 3:48 PM CDTTSTM WND DMG4 Ese Dubuque, IATREES DOWN AT DUBUQUE COUNTY FAIRGROUNDS. TIME ESTIMATED.
Jun 30, 3:49 PM CDTTSTM WND DMGEne Andrew, IASHED BLOWN OVER AND TREE BRANCHES DOWN
Jun 30, 4:00 PM CDTTSTM WND DMG1 Nw Davenport, IATIME ESTIMATED. 20 INCH DIAMETER TREE SNAPPED.
Jun 30, 4:13 PM CDTTSTM WND GST 505 Sse Council Hill, IL40 MPH SUSTAINED WITH GUSTS GREATER THAN 50 MPH
Jun 30, 4:31 PM CDTTSTM WND GST 44Stockton, ILAND 1/4 INCH OF RAIN

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this severe thunderstorm warning; the first came 1 minutes after it went out.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 30, 2:03 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.7 hours before the alert went out and 57 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, Davenport, at 12:00Z on 2014-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1426 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2014-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 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
1426 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
2.3
Supercell composite
15.0

Open this sounding in Storm Lab

The text

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

891 
WUUS53 KDVN 302044
SVRDVN
IAC045-061-097-163-ILC015-085-161-195-302130-
/O.NEW.KDVN.SV.W.0110.140630T2044Z-140630T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
344 PM CDT MON JUN 30 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLINTON COUNTY IN EAST CENTRAL IOWA...
  EASTERN DUBUQUE COUNTY IN NORTHEAST IOWA...
  JACKSON COUNTY IN EAST CENTRAL IOWA...
  SCOTT COUNTY IN EAST CENTRAL IOWA...
  WESTERN CARROLL COUNTY IN NORTHWEST ILLINOIS...
  JO DAVIESS COUNTY IN NORTHWEST ILLINOIS...
  UPPER ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS...
  WHITESIDE COUNTY IN NORTHWEST ILLINOIS...

* UNTIL 430 PM CDT

* AT 338 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 5 MILES NORTHWEST OF ST. DONATUS TO LONG GROVE...AND
  MOVING NORTHEAST AT 85 MPH.

  HAZARD...70 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  GALENA...CLINTON...MORRISON...MOUNT CARROLL...MENOMINEE...
  CORDOVA...SPRAGUEVILLE...BELLEVUE...PRESTON...LOW MOOR...
  CAMANCHE...MILES...GREEN ISLAND...ALBANY...COUNCIL HILL...ERIE...
  ANDOVER...HANOVER...EAST CLINTON AND GARDEN PLAIN.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 286 AND 
306...AND IN ILLINOIS BETWEEN MILE MARKERS 1 AND 2.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 7 AND 27.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...SOARING EAGLES
NATURE CENTER...MISSISSIPPI PALISADES STATE PARK...BIG BEND STATE
FISH AND WILDLIFE AREA...PROPHETSTOWN STATE RECREATION AREA...CLINTON
COUNTY FAIRGROUNDS...DUBUQUE COUNTY FAIRGROUNDS...ELIZABETH
FAIRGROUNDS...JACKSON COUNTY FAIRGROUNDS...JO DAVIESS COUNTY
FAIRGROUNDS...MISSISSIPPI VALLEY FAIRGROUNDS...WHITESIDE COUNTY
FAIRGROUNDS...CANYON CAMP...CAMP FAR HORIZONS...DUCK CREEK COUNTY
PARK...CAMP MISS-ELK-TON...JOINERVILLE COUNTY PARK...SOUTH SABULA
LAKE PARK...MUD LAKE PARK...MASSEY MARINA PARK...SPRUCE CREEK PARK...
SWISS VALLEY PARK AND FINLEY'S LANDING PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 
AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4265 9072 4251 9063 4250 8993 4158 8993
      4158 9018 4156 9018 4151 9075 4267 9087
TIME...MOT...LOC 2042Z 235DEG 73KT 4244 9055 4174 9045

HAIL...0.75IN
WIND...70MPH

$$

MCCLURE
4 follow-up statements
432 
WWUS53 KDVN 302056
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
356 PM CDT MON JUN 30 2014

IAC045-061-097-163-ILC015-085-161-195-302130-
/O.CON.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
SCOTT IA-JACKSON IA-DUBUQUE IA-CLINTON IA-JO DAVIESS IL-
ROCK ISLAND IL-WHITESIDE IL-CARROLL IL-
356 PM CDT MON JUN 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
CARROLL...WESTERN WHITESIDE...NORTHEASTERN ROCK ISLAND...JO
DAVIESS...CLINTON...EASTERN DUBUQUE...JACKSON AND SCOTT COUNTIES
UNTIL 430 PM CDT...

AT 354 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HAZEL GREEN TO CORDOVA...AND MOVING NORTHEAST AT 60
MPH.

HAZARD...70 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE
         HOMES...ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
CLINTON...MORRISON...MOUNT CARROLL...ANDOVER...ALBANY...HANOVER...
EAST CLINTON...FULTON...ERIE...SCALES MOUND...ELIZABETH...GARDEN
PLAIN...SABULA...SCHAPVILLE...SAVANNA...WOODBINE...MASSBACH...
PROPHETSTOWN...ARGO FAY AND STOCKTON.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 286 AND 
306...AND IN ILLINOIS BETWEEN MILE MARKERS 1 AND 2.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 7 AND 27.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...SOARING EAGLES
NATURE CENTER...MISSISSIPPI PALISADES STATE PARK...BIG BEND STATE
FISH AND WILDLIFE AREA...PROPHETSTOWN STATE RECREATION AREA...CLINTON
COUNTY FAIRGROUNDS...DUBUQUE COUNTY FAIRGROUNDS...ELIZABETH
FAIRGROUNDS...JACKSON COUNTY FAIRGROUNDS...JO DAVIESS COUNTY
FAIRGROUNDS...MISSISSIPPI VALLEY FAIRGROUNDS...WHITESIDE COUNTY
FAIRGROUNDS...CANYON CAMP...CAMP FAR HORIZONS...DUCK CREEK COUNTY
PARK...CAMP MISS-ELK-TON...JOINERVILLE COUNTY PARK...SOUTH SABULA
LAKE PARK...MUD LAKE PARK...MASSEY MARINA PARK...SPRUCE CREEK PARK...
SWISS VALLEY PARK AND FINLEY'S LANDING PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD 
WIND DAMAGE. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 
AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4265 9072 4251 9063 4250 8993 4158 8993
      4158 9018 4156 9018 4151 9075 4267 9087
TIME...MOT...LOC 2056Z 234DEG 54KT 4253 9036 4168 9022

HAIL...0.75IN
WIND...70MPH

$$

MCCLURE
096 
WWUS53 KDVN 302110
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
410 PM CDT MON JUN 30 2014

IAC163-ILC161-195-302119-
/O.CAN.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
SCOTT IA-ROCK ISLAND IL-WHITESIDE IL-
410 PM CDT MON JUN 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WHITESIDE...
NORTHEASTERN ROCK ISLAND AND SCOTT COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED. 

LAT...LON 4265 9072 4251 9063 4250 8993 4193 8992
      4192 9044 4267 9087
TIME...MOT...LOC 2109Z 234DEG 54KT 4264 9014 4179 9001

$$

IAC045-061-097-ILC015-085-302130-
/O.CON.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
JACKSON IA-DUBUQUE IA-CLINTON IA-JO DAVIESS IL-CARROLL IL-
410 PM CDT MON JUN 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
CARROLL...JO DAVIESS...NORTHEASTERN CLINTON...EASTERN DUBUQUE AND
EASTERN JACKSON COUNTIES UNTIL 430 PM CDT...

AT 407 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SHULLSBURG TO MORRISON...AND MOVING NORTHEAST AT 60
MPH.

HAZARD...70 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO MOBILE
         HOMES...ROOFS AND OUTBUILDINGS.

LOCATIONS IMPACTED INCLUDE...
MOUNT CARROLL...ARGO FAY...STOCKTON...FAIRHAVEN...WARREN...NORA...
ELMOVILLE...IDEAL...APPLE RIVER CANYON STATE PARK...STOCKTON AIRPORT
AND WILLOW.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...MISSISSIPPI
PALISADES STATE PARK...ELIZABETH FAIRGROUNDS...JO DAVIESS COUNTY
FAIRGROUNDS...CANYON CAMP...CAMP FAR HORIZONS...DUCK CREEK COUNTY
PARK...CAMP MISS-ELK-TON...SOUTH SABULA LAKE PARK...MUD LAKE PARK...
MASSEY MARINA PARK...SPRUCE CREEK PARK AND FINLEY'S LANDING PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD 
WIND DAMAGE. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 
AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4265 9072 4251 9063 4250 8993 4193 8992
      4192 9044 4267 9087
TIME...MOT...LOC 2109Z 234DEG 54KT 4264 9014 4179 9001

HAIL...0.75IN
WIND...70MPH

$$

MCCLURE
402 
WWUS53 KDVN 302119
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
419 PM CDT MON JUN 30 2014

IAC045-061-097-302128-
/O.CAN.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
JACKSON IA-DUBUQUE IA-CLINTON IA-
419 PM CDT MON JUN 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLINTON...EASTERN
DUBUQUE AND EASTERN JACKSON COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4250 8993 4193 8992 4193 9015 4196 9017
      4201 9014 4204 9016 4212 9016 4214 9021
      4216 9022 4217 9026 4238 9047 4240 9051
      4251 9063
TIME...MOT...LOC 2118Z 234DEG 54KT 4271 8998 4186 8986

$$

ILC015-085-302130-
/O.CON.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
JO DAVIESS IL-CARROLL IL-
419 PM CDT MON JUN 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
CARROLL AND JO DAVIESS COUNTIES UNTIL 430 PM CDT...

AT 418 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES WEST OF ARGYLE TO COLETA...AND MOVING
NORTHEAST AT 60 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...

OTHER LOCATIONS AFFECTED INCLUDE MISSISSIPPI PALISADES STATE PARK...
ELIZABETH FAIRGROUNDS...JO DAVIESS COUNTY FAIRGROUNDS...CANYON CAMP
AND CAMP FAR HORIZONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE 
TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN THE
QUAD CITIES.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4250 8993 4193 8992 4193 9015 4196 9017
      4201 9014 4204 9016 4212 9016 4214 9021
      4216 9022 4217 9026 4238 9047 4240 9051
      4251 9063
TIME...MOT...LOC 2118Z 234DEG 54KT 4271 8998 4186 8986

HAIL...<.75IN
WIND...60MPH

$$

MCCLURE
435 
WWUS53 KDVN 302126
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
426 PM CDT MON JUN 30 2014

ILC015-085-302136-
/O.EXP.KDVN.SV.W.0110.000000T0000Z-140630T2130Z/
JO DAVIESS IL-CARROLL IL-
426 PM CDT MON JUN 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CARROLL AND JO DAVIESS
COUNTIES WILL EXPIRE AT 430 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED
OUT OF THE WARNED AREA.  HOWEVER...GUSTY WINDS ARE STILL POSSIBLE
WITH THESE THUNDERSTORMS.

LAT...LON 4250 8993 4193 8992 4193 9015 4196 9017
      4201 9014 4204 9016 4212 9016 4214 9021
      4216 9022 4217 9026 4238 9047 4240 9051
      4251 9063
TIME...MOT...LOC 2126Z 234DEG 54KT 4274 8980 4189 8971

$$

MCCLURE

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 30, 12:56 PM CDT, 2 hours 48 minutes earlier.

Area forecast discussion, Jun 30, 12:56 PM CDT, 2 hours 48 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1256 PM CDT MON JUN 30 2014

.UPDATE...
ISSUED AT 1128 AM CDT MON JUN 30 2014

WITH THE POTENTIAL OF SOME OF THE UPSTREAM CONVECTION WITH INTENSE
RAINFALL RATES/VERY HEAVY RAIN PRODUCTION POSSIBLY PROPAGATING
FURTHER SOUTH INTO THE SOUTHERN CWA...HAVE EXPANDED THE FLASH
FLOOD WATCH ACRS THE REST OF THE CWA. DESPITE THESE AREAS MISSING
OUT ON THE HEAVY RAIN LAST NIGHT...RAINFALL INTENSITY MAY PRODUCE
AT LEAST SHORT LIVED FLASH FLOODING IN SOME OF THESE AREAS.
POTENTIALLY SERIOUS RENEWED FLASH FLOODING POSSIBLE THIS AFTERNOON
IN AREAS ALREADY VERY HARD HIT...BENTON...LINN...JONES...WESTERN
JACKSON AND CLINTON COUNTIES IN IA. PORTIONS OF EASTERN HENRY IL
AND WESTERN BUREAU COUNTIES IN IL ALSO MORE SUSCEPTIBLE TO POSSIBLE
HIGHER END FLASH FLOODING WITH ANY ADDITIONAL HEAVY RAINFALL OF
1-3+ INCHES THROUGH MID EVENING.

LARGE BOWING STRUCTURE CURRENTLY OUT ACRS WEST CENTRAL IA...MAY
TRACK ALONG SFC BOUNDARY AND FAVORABLE THERMODYNAMIC GRADIENT
ALONG I80 INTO THE WESTERN CWA...POSSIBLY TRYING TO PROPAGATE MORE
EAST-SOUTHEAST TOWARD THE SOUTHWESTERN CWA FEEDING INTO MORE
UNSTABLE AIR. IF THIS SYSTEM MAINTAINS...WIDESPREAD HIGHER END STRAIGHT
LINE WINDS OF 70-80+ MPH MAY BE POSSIBLE WITH THIS SYSTEM AS IT
ARRIVES THIS AFTERNOON AROUND 2 PM CDT OR SO.    ..12..

&&

.SYNOPSIS...
ISSUED AT 257 AM CDT MON JUN 30 2014

A MAJOR FLASH FLOOD EVENT HAS TAKEN PLACE OVER THE CWA...WITH
WIDESPREAD 2 TO 5 INCH RAINS THIS PAST EVENING IN OUR NORTHEAST
1/2 OF THE CWA. THIS PARTICULARLY HAS BEEN HARD HITTING IN THE
CEDAR RAPIDS...THROUGH QUAD CITIES. THIS BROAD AREA IT GREATLY
IMPACTING THE CEDAR...MAQUOKETA...AND WAPSIPINICON RIVERS. THERE
WILL BE SIGNIFICANT UPDATES TO ALL OF THESE TODAY AS CURRENT AND
FUTURE RAINS ARE INCORPORATED INTO THE RIVER FORECASTS.

&&

.SHORT TERM...(TODAY AND TONIGHT)
ISSUED AT 257 AM CDT MON JUN 30 2014

BOTH A SIGNIFICANT SEVERE WEATHER OUTBREAK...AND NEW LIFE
THREATENING FLASH FLOOD EVENT ARE POSSIBLE TODAY...ESPECIALLY IN
THE NORTHERN 1/2 OF THE CWA. ONGOING FLOODING AND POSSIBLE SEVERE
WILL FORCE ME TO BE BRIEF...BUT THE POTENTIAL NEEDS TO BE
DISCUSSED AS BEST WE CAN.

LIKE THIS PAST EVENING...AMPLE CAPE WILL BE AVAILABLE FOR STORMS
TODAY...AS THE VAST HIGH PWAT AIRMASS IS LARGELY UNTAPPED TO THE
SOUTH OF INTERSTATE 80. MODELS FORECAST OF DEWPOINTS OF MID 70S
TO EVEN 77 ARE POSSIBLE...AS THIS WAS NOTED ON OBS THIS PAST
EVENING. THAT SAID...A STRONG MID LEVEL VORT WILL SWEEP EAST
THROUGH THE PLAINS EARLY TODAY...REACHING IOWA BY LATE MORNING.
THIS IS ALREADY SPAWNING NEW STORMS IN NORTHWEST IOWA...AND IN
NEBRASKA. THESE STORMS SHOULD ASSIST IN HOLDING THE OUTFLOW
BOUNDARY SOUTH...INTO IOWA VS LIFTING NORTH AS THE NAM SUGGESTS.
THE ECMWF SEEMS TO HAVE THE BEST HANDLE ON THIS EVOLUTION TODAY.

SO...A SCATTERED THREAT FOR SEVERE STORMS IS POSSIBLE EVEN THIS
MORNING IN THE WEST...WITH A BROAD SEVERE THREAT THIS AFTERNOON
AND EARLY EVENING. I EXPECT SUPERCELL DEVELOPMENT OVER CENTRAL
IOWA...CONGEALING INTO A DAMAGING HP COMPLEX WITH BOWING SEGMENTS
AS IT MOVES THROUGH EASTERN IOWA AND ILLINOIS AFTER 2 PM. THIS
WILL CARRY A SIGNIFICANT DAMAGING WIND THREAT...WITH ISOLATED HAIL
AND TORNADOES ALSO POSSIBLE.

HEAVY RAINS ARE VERY LIKELY...AND WE CANNOT TAKE IT.

A SIMILAR RAIN RATE OF 2 OR MORE INCHES PER HOUR SHOULD OCCUR
TODAY AND TONIGHT WITH DEEP CONVECTION...RESULTING IN LIFE
THREATENING FLASH FLOODING. WHERE RAINS HAVE ALREADY BEEN
HEAVY...GENERALLY IN THE NORTHERN 2/3RDS OF THE CWA.

.LONG TERM...(TUESDAY THROUGH SUNDAY)
ISSUED AT 257 AM CDT MON JUN 30 2014

VERY PLEASANTLY COOL CONDITIONS WILL BE FOUND THROUGH
FRIDAY...WITH LOW CHANCES FOR SHOWERS...AND DIURNALLY...A THUNDER
STORM. A GUIDANCE BLEND HAS BEEN USED.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z TUESDAY AFTERNOON)
ISSUED AT 1239 PM CDT MON JUN 30 2014

TEMPORARY CALM BEFORE THE STORM THROUGH 19Z-20Z OR SO AT THE TAF
SITES...THEN STORM COMPLEXES FROM THE WEST TO BE A BIG IMPACT AT
MOST IF NOT ALL SITES FROM 20Z THROUGH AT LEAST 02Z THIS EVENING.
HIGH TURBULENT LATE AFTERNOON AND EARLY EVENING. POSSIBLE SVR
STORMS WITH STRAIGHT LINE WIND GUSTS TO 50-60 KTS/POSSIBLY HIGHER
NEAR 75 KTS IN MAX BOWING HEAD/...LARGE HAIL AND TORRENTIAL DOWNPOURS
SEVERELY REDUCING VSBYS AT TIMES AS STRONGER CELLS PASS BY.
POTENTIAL FOR A BOWING SEGMENT WITH WIDESPREAD HIGH WINDS COMING
DOWN I80...POSSIBLY CLIPPING THE CID AND EVENTUALLY THE MLI SITE
BY LATE AFTERNOON. BRL NOT OUT OF THE QUESTION FOR A BOWING
SEGMENT FROM 4 PM TO 6 PM CDT OR SO. SOUTH TO SOUTHEAST SFC WINDS
OF 10-15 KTS BEFORE FRONTAL PASSAGE VEERS WINDS TO THE WEST FROM
MID EVENING AND INTO THE OVERNIGHT. AFTER STORMS PASS... POTENTIAL
FOR SOME MVFR FOG AND CIGS FROM 03Z-07Z TONIGHT BEFORE WEST WINDS
INCREASE AND CONDITIONS IMPROVE FROM WEST TO EAST INTO TUE
MORNING.    ..12..

&&

.HYDROLOGY...
ISSUED AT 257 AM CDT MON JUN 30 2014

EXPECT SIGNIFICANT UPWARD ADJUSTMENTS TO MOST RIVER FORECASTS
TODAY. CONFIDENCE ON EXACT LEVELS WILL BE MUCH HIGHER BY TOMORROW
NIGHT...AFTER THE LAST HEAVY RAINS FALL. UNTIL THEN...THE BROAD
PICTURE IS DIRE. EXCEPTIONAL RAINS OF 2 TO 5 INCHES HAVE BEEN
WIDESPREAD FROM NORTHEAST IOWA THROUGH EAST CENTRAL IOWA INTO
NORTHERN ILLINOIS. THIS FLASH FLOOD PRODUCING RAINS WILL ENTER
RIVERS THROUGH TONIGHT...RESULTING IN STAGES SHOOTING UPWARD.

ANOTHER VERY HEAVY RAIN EVENT IS EXPECTED TONIGHT...WITH MORE LIFE
THREATENING FLASH FLOODING EXPECTED. THIS ADDITIONAL HEAVY
RAINS...WILL BRING MORE FLOODING ON RIVER...WHICH IS INCLUDED IN
NEW FORECASTS. BUT...AS ALWAYS...THE QPF LIKELY WILL NOT FALL
PERFECTLY AS FORECAST...THUS...EXPECT CHANGES TO RIVER FORECAST IN
THE NEXT FEW DAYS.

THIS IS A HIGH IMPACT SITUATION!

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR BENTON-BUCHANAN-CEDAR-
     CLINTON-DELAWARE-DES MOINES-DUBUQUE-HENRY IA-IOWA-JACKSON-
     JEFFERSON-JOHNSON-JONES-KEOKUK-LEE-LINN-LOUISA-MUSCATINE-
     SCOTT-VAN BUREN-WASHINGTON.

IL...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR BUREAU-CARROLL-
     HANCOCK-HENDERSON-HENRY IL-JO DAVIESS-MCDONOUGH-MERCER-
     PUTNAM-ROCK ISLAND-STEPHENSON-WARREN-WHITESIDE.

MO...FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR CLARK-SCOTLAND.

&&

UPDATE...12
SYNOPSIS...ERVIN
SHORT TERM...ERVIN
LONG TERM...ERVIN
AVIATION...12
HYDROLOGY...ERVIN
Hazardous weather outlook, Jun 30, 3:58 AM CDT, 11 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
358 AM CDT MON JUN 30 2014

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-010900-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
358 AM CDT MON JUN 30 2014

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

.DAY ONE...TODAY AND TONIGHT

THE COMBINATION OF LIFE THREATENING FLASH FLOODING AND SIGNIFICANT
SEVERE WEATHER WILL MAKE TODAY AND THIS EVENING A VERY IMPORTANT
DAY TO BE A STORM SPOTTER. AFTER THE EXCEPTIONALLY HEAVY RAINS
THIS PAST NIGHT...ANOTHER ROUND OF WIDESPREAD TORRENTIAL RAINFALL
AND SEVERE WEATHER IS EXPECTED TODAY OVER THE OUTLOOK AREA. THE
THREAT FOR FLASH FLOODING...WILL BE HIGHEST IN SATURATED
AREAS...GENERALLY NORTH OF HIGHWAY 34 IN IOWA...AND NORTH OF
GALESBURG IN ILLINOIS. TORRENTIAL RAINFALL OVER 2 INCHES IN ONE
HOUR ARE POSSIBLE AGAIN TODAY...RESULTING IN A SIGNIFICANT THREAT
FOR FLASH FLOODING. IN ADDITION...RIVER FLOODING WILL INCREASE
SIGNIFICANTLY DUE TO THIS VERY HEAVY RAIN.

THE STORM PREDICTION CENTER IS FORECASTING A MODERATE RISK FOR
SEVERE STORMS OVER THE ENTIRE OUTLOOK AREA TODAY AND TONIGHT.
SUPERCELL THUNDERSTORMS WILL FORM IN CENTRAL IOWA TODAY...AND MOVE
EAST...AS THEY FORM INTO ANOTHER LARGE BOWING LINE THIS AFTERNOON. THE
THREAT FOR LARGE HAIL...DAMAGING WINDS AND TORNADOES IS WIDESPREAD
TODAY AND EARLY THIS EVENING AS STORMS MOVE EAST.

AREA RIVERS ARE EXPERIENCING FLOODING. PLEASE SEE THE LATEST
FLOOD STATEMENTS AND FLOOD WARNINGS FOR DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER REPORTS OF HEAVY RAIN...FLASH FLOODING...STORM
DAMAGE...AND SEVERE WEATHER ARE NEEDED TODAY THROUGH THIS EVENING.
SPOTTER ACTIVATION WILL BE NEEDED TODAY AND TONIGHT.

A CONFERENCE CALL FOR EMERGENCY MANAGEMENT COORDINATORS WILL BE CONDUCTED
LATER THIS MORNING OR EARLY THIS AFTERNOON.

ERVIN

In the hours before

Local storm report, Jun 30, 3:23 PM CDT, 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
323 PM CDT MON JUN 30 2014

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

0300 PM     TSTM WND DMG     PALO                    42.06N 91.80W
06/30/2014                   LINN               IA   EMERGENCY MNGR

            TREES DOWN AND ROOFS BLOWN OFF FROM PALO TOWARDS
            TODDVILLE. ESTIMATED OVER 80 MPH WINDS. VIA NAWAS.

0300 PM     TSTM WND GST     5 NE CEDAR RAPIDS       42.02N 91.60W
06/30/2014  E60 MPH          LINN               IA   TRAINED SPOTTER

            TREES DOWN NEAR LINDALL MALL AND THE CEMETARY IN CEDAR
            RAPIDS. TIME ESTIMATED.

0255 PM     TSTM WND GST     2 NW CEDAR RAPIDS       41.99N 91.69W
06/30/2014  E70 MPH          LINN               IA   TRAINED SPOTTER

            TWO TREES DOWN IN CEDAR MEMORIAL CEMETARY. 1ST AVE
            BLOCKED. ESTIMATED AT 70 MPH. TIME ESTIMATED AT 250 TO
            255 PM.

0306 PM     HEAVY RAIN       3 SSE SHUEYVILLE        41.81N 91.62W
06/30/2014  U0.00 INCH       JOHNSON            IA   TRAINED SPOTTER

            HEAVY RAINS PONDING ABOUT 2 TO 3 INCHES DEEP.

0308 PM     HEAVY RAIN       IOWA CITY               41.66N 91.54W
06/30/2014  U0.00 INCH       JOHNSON            IA   TRAINED SPOTTER

            WATER ON S RIVERSIDE DRIVE IN IOWA CITY IS 5 TO 6 INCHES
            DEEP ALONG CURBS.

0317 PM     TSTM WND GST     PRAIRIEBURG             42.24N 91.43W
06/30/2014  M80 MPH          LINN               IA   TRAINED SPOTTER

            MEASURED BY A SPOTTER.

&&
Local storm report, Jun 30, 3:25 PM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
325 PM CDT MON JUN 30 2014

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

0316 PM     TSTM WND DMG     5 NNE CEDAR RAPIDS      42.04N 91.63W
06/30/2014                   LINN               IA   TRAINED SPOTTER

            NORTHBOUND TOWARD ALBURNETT LARGE TREE BRANCHES DOWN

0322 PM     HEAVY RAIN       2 NNW WILLIAMSTOWN      41.59N 91.75W
06/30/2014  M1.00 INCH       JOHNSON            IA   TRAINED SPOTTER

            RAINFALL IN PAST 20 MINUTES

0322 PM     TSTM WND DMG     MARION                  42.03N 91.59W
06/30/2014                   LINN               IA   TRAINED SPOTTER

            NUMEROUS 3 TO 15 FOOT LONG BRANCHES DOWN,TWO MAPLE TREES
            APROX 20 FEET TALL SNAPPED OFF AT THE BASE.

&&

TAS
Local storm report, Jun 30, 3:26 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
326 PM CDT MON JUN 30 2014

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

0256 PM     TSTM WND DMG     1 W NORTH LIBERTY       41.74N 91.63W
06/30/2014                   JOHNSON            IA   TRAINED SPOTTER

            4 TO 5 INCH DIAMETER TREES SNAPPED.

&&
Local storm report, Jun 30, 3:28 PM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
328 PM CDT MON JUN 30 2014

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

0306 PM     TSTM WND DMG     MANCHESTER              42.49N 91.46W
06/30/2014                   DELAWARE           IA   EMERGENCY MNGR

            NUMEROUS TREES DOWN.

&&
Local storm report, Jun 30, 3:33 PM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
333 PM CDT MON JUN 30 2014

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

0327 PM     TSTM WND DMG     1 SSE CEDAR RAPIDS      41.95N 91.66W
06/30/2014                   LINN               IA   TRAINED SPOTTER

            NUMEROUS TREES AND POWER LINES DOWN ACROSS THE CITY

0327 PM     HEAVY RAIN       1 SSE CEDAR RAPIDS      41.95N 91.66W
06/30/2014  E0.75 INCH       LINN               IA   TRAINED SPOTTER

            RAINFALL IN 45 MINUTES

0329 PM     TSTM WND DMG     ROBINS                  42.08N 91.67W
06/30/2014                   LINN               IA   TRAINED SPOTTER

            IN ROBBINS A 40 FOOT OAK TREE UPROOTED, MANY TREE
            BRANCHES DOWN. ON NORTHSIDE OF TOWN NUMEROUS TREES
            SNAPPED OFF ABOUT 3 FEET ABOVE THE GROUND.

&&

TAS
Local storm report, Jun 30, 3:40 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
340 PM CDT MON JUN 30 2014

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

0326 PM     TSTM WND GST     TIPTON                  41.77N 91.13W
06/30/2014  M66 MPH          CEDAR              IA   MESONET

0300 PM     TSTM WND DMG     IOWA CITY               41.66N 91.54W
06/30/2014                   JOHNSON            IA   TRAINED SPOTTER

            TREES DOWN IN IOWA CITY. VIA SKYWARN.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 10:08 PM CDTSevere Thunderstorm WarningDVNJo Daviess37 min
Jun 29, 10:31 PM CDTTornado WarningDVNCarroll, Jo Daviess29 min
Jun 29, 11:10 PM CDTFlash Flood WarningDVNCarroll, Jo Daviess, Stephenson6 hr
Jun 29, 11:10 PM CDTSevere Thunderstorm WarningDVNCarroll, Whiteside50 min
Jun 29, 11:12 PM CDTFlash Flood WatchDVNBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more26 hr
Jun 29, 11:51 PM CDTFlash Flood WarningDVNCarroll, Rock Island, Whiteside6 hr
Jun 30, 12:30 AM CDTSevere Thunderstorm WarningDVNCarroll, Rock Island, Whiteside45 min
Jun 30, 1:33 AM CDTFlash Flood WarningDVNBureau, Henry, Mercer, Putnam, Rock Island, Whiteside6 hr
Jun 30, 4:34 AM CDTAreal Flood WarningDVNCarroll, Jo Daviess, Stephenson6 hr
Jun 30, 4:39 AM CDTAreal Flood WarningDVNCarroll, Rock Island, Whiteside6 hr
Jun 30, 5:03 AM CDTAreal Flood WarningDVNBureau, Henry, Putnam, Rock Island, Whiteside6 hr
Jun 30, 6:03 AM CDTRiver Flood WarningDVNHenry, Rock Island, Whiteside8 days
Jun 30, 6:03 AM CDTRiver Flood WarningDVNHenry, Rock Island8 days
Jun 30, 8:16 AM CDTSpecial Weather StatementDVNHenderson, Mercer, Warren59 min
Jun 30, 8:20 AM CDTSevere Thunderstorm WarningDVNHenderson, Warren40 min
Jun 30, 11:04 AM CDTRiver Flood WarningDVNStephenson8 days
Jun 30, 11:04 AM CDTRiver Flood WarningDVNWhiteside7 days
Jun 30, 11:04 AM CDTRiver Flood WarningDVNHenry4 days
Jun 30, 4:08 PM CDTSpecial Weather StatementDVNCarroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more52 min
Jun 30, 4:35 PM CDTFlash Flood WarningDVNRock Island6 hr
Jun 30, 4:40 PM CDTSpecial Weather StatementDVNStephenson50 min
Jun 30, 4:50 PM CDTSpecial Weather StatementDVNBureau, Henry55 min
Jun 30, 5:14 PM CDTFlash Flood WarningDVNHenry6 hr
Jun 30, 5:22 PM CDTSevere Thunderstorm WarningDVNBureau, Putnam53 min
Jun 29, 8:53 PM CDTSevere Thunderstorm WarningDVNBenton, Buchanan, Linn67 min
Jun 29, 10:01 PM CDTFlash Flood WarningDVNBenton, Buchanan, Delaware, Dubuque, Jones, Linn6 hr
Jun 29, 10:53 PM CDTFlash Flood WarningDVNBenton, Jones, Linn6 hr
Jun 29, 11:15 PM CDTSevere Thunderstorm WarningDVNBenton, Cedar, Iowa, Johnson, Keokuk, Linn and 2 more45 min
Jun 30, 12:49 AM CDTRiver Flood WarningDVNCedar, Johnson, Linn7 days
Jun 30, 12:49 AM CDTRiver Flood WarningDVNLee4 days
Jun 30, 1:05 AM CDTRiver Flood WarningDVNCedar, Jones, Linn8 days
Jun 30, 2:28 AM CDTRiver Flood WarningDVNDelaware, Jones4 days
Jun 30, 2:28 AM CDTRiver Flood WarningDVNJackson5 days
Jun 30, 2:28 AM CDTRiver Flood WarningDVNBuchanan, Linn4 days
Jun 30, 3:27 AM CDTAreal Flood WarningDVNBenton, Buchanan, Delaware, Dubuque, Jones, Linn6 hr
Jun 30, 4:31 AM CDTAreal Flood WarningDVNBenton, Jones, Linn6 hr
Jun 30, 5:49 AM CDTRiver Flood WarningDVNBenton, Linn6 days
Jun 30, 12:05 PM CDTRiver Flood WarningDVNJohnson, Washington10 days
Jun 30, 12:05 PM CDTRiver Flood WarningDVNJohnson, Louisa, Washington21 days
Jun 30, 1:51 PM CDTSevere Thunderstorm WarningDVNBenton54 min
Jun 30, 2:14 PM CDTSevere Thunderstorm WarningDVNIowa61 min
Jun 30, 2:17 PM CDTTornado WarningDVNBenton28 min
Jun 30, 2:21 PM CDTSevere Thunderstorm WarningDVNBuchanan24 min
Jun 30, 2:27 PM CDTSevere Thunderstorm WarningDVNKeokuk48 min
Jun 30, 2:38 PM CDTSevere Thunderstorm WarningDVNBenton, Iowa, Linn37 min
Jun 30, 2:46 PM CDTSevere Thunderstorm WarningDVNBuchanan, Delaware44 min
Jun 30, 2:53 PM CDTSevere Thunderstorm WarningDVNJohnson39 min
Jun 30, 2:54 PM CDTSpecial Weather StatementDVNBenton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more66 min
Jun 30, 2:59 PM CDTSevere Thunderstorm WarningDVNCedar, Clinton, Jackson, Jones, Muscatine, Scott46 min
Jun 30, 3:13 PM CDTFlash Flood WarningDVNBenton, Cedar, Iowa, Johnson, Jones, Linn6 hr
Jun 30, 3:18 PM CDTSevere Thunderstorm WarningDVNDelaware, Dubuque, Jackson42 min
Jun 30, 3:53 PM CDTFlash Flood WarningDVNKeokuk, Louisa, Muscatine, Washington6 hr
Jun 30, 6:02 PM CDTFlash Flood WarningDVNBuchanan, Delaware, Dubuque6 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2014Severe Thunderstorm Warnings in Iowa, 2014Every severe thunderstorm 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.