Alert archive / Iowa / Special Weather Statements in 2016
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Aug 4, 2016, 5:28 PM CDT for Benton County, Iowa. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 4, 2016, 5:28 PM CDT (22:28 UTC)
- Expired
- Aug 4, 2016, 6:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Quad Cities, IA
County Benton County, IA
The radar
The Des Moines radar (KDMX), 138 km from the middle of the area, began a volume at 22:29 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
Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 144 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.
- Mixed-layer CAPE
- 500 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 970 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 4, 3:40 PM CDT, 1 hour 48 minutes earlier.
Area forecast discussion, Aug 4, 3:40 PM CDT, 1 hour 48 minutes before
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</html>Hazardous weather outlook, Aug 4, 4:14 PM CDT, 1 hour 14 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 414 PM CDT THU AUG 4 2016 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-051000- 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- 414 PM CDT THU AUG 4 2016 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...THIS AFTERNOON AND TONIGHT TEMPERATURES IN THE UPPER 80S TO LOW 90S...COMBINED WITH HIGH HUMIDITY...WILL CREATE LATE AFTERNOON AND EARLY EVENING HEAT INDICES IN THE UPPER 90S TO LOWER 100 DEGREE RANGE. THERE WILL BE LOCALIZED AREAS AROUND 105 DEGREES IN SOUTHEASTERN IOWA THROUGH 6 PM CDT. THUNDERSTORMS ARE STILL EXPECTED TO MOVE INTO EASTERN IOWA THROUGH EARLY EVENING...AND THEN SPREAD EAST AND SOUTHEAST ACROSS THE ENTIRE AREA AS THE EVENING PROGRESSES INTO THE OVERNIGHT AS A COLD FRONT PUSHES INTO THE REGION FROM THE WEST. WITH ALL THE HEAT AND HUMIDITY IN PLACE...THE CHANCE FOR SOME SEVERE STORMS CONTINUES THROUGH THE EVENING ESPECIALLY NORTHWEST OF A FREEPORT...TO QUAD CITIES...TO WASHINGTON IOWA LINE. THE MAIN THREATS WILL BE DAMAGING WIND GUSTS AND LOCALLY HEAVY RAIN. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SEVERAL ROUNDS OF THUNDERSTORMS ARE POSSIBLE MAINLY SUNDAY THROUGH WEDNESDAY. THE SEVERE WEATHER THREAT APPEARS LOW...BUT LOCALLY HEAVY RAIN MAY BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND EVENING, ESPECIALLY IN EASTERN IOWA. 12
In the hours before
Special weather statement, Aug 4, 1:31 PM CDT, 3 hours 57 minutes before
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</html>Special weather statement, Aug 4, 1:52 PM CDT, 3 hours 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 152 PM CDT THU AUG 4 2016 IAZ063>068-076>078-087>089-098-099-ILZ015-016-024>026-034-035- MOZ009-010-042300- IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-ROCK ISLAND- HENRY IL-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...MARENGO...IOWA CITY...TIPTON... CLINTON...MUSCATINE...DAVENPORT...BETTENDORF...SIGOURNEY... WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT...BURLINGTON... KEOSAUQUA...FORT MADISON...MOLINE...ROCK ISLAND...GENESEO... ALEDO...OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA 152 PM CDT THU AUG 4 2016 ...VERY WARM AND MUGGY INTO THE EARLY EVENING... TEMPERATURES IN THE UPPER 80S TO LOWER 90S COUPLED WITH DEWPOINTS IN THE MID TO UPPER 70S WILL CREATE PEAK HEAT INDICES IN THE UPPER 90S TO LOW 100S. THE EXTREMELY HUMID CONDITIONS WILL RESULT IN AN INCREASED RISK FOR HEAT EXHAUSTION FOR THOSE WORKING OR RECREATING OUTDOORS THIS AFTERNOON AND EVENING. CONDITIONS WILL IMPROVE AFTER 6 OR 7 PM AS TEMPERATURES SLOWLY FALL THROUGH THE 80S. PLEASE USE EXTRA CAUTION IF YOU MUST BE OUTSIDE AND DRINK PLENTY OF WATER. THOSE MOST SUSCEPTIBLE TO THE HEAT ARE YOUNG CHILDREN, ELDERLY, AND PETS. UTTECH
Special weather statement, Aug 4, 3:37 PM CDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 337 PM CDT THU AUG 4 2016 IAZ052-063>068-076>078-087>089-098-099-ILZ009-015-016-024>026-034- 035-MOZ009-010-042345- LINN-IOWA-JOHNSON-CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON- LOUISA-JEFFERSON-HENRY IA-DES MOINES-VAN BUREN-LEE-WHITESIDE- ROCK ISLAND-HENRY IL-MERCER-HENDERSON-WARREN-HANCOCK-MCDONOUGH- SCOTLAND-CLARK- INCLUDING THE CITIES OF...CEDAR RAPIDS...MARENGO...IOWA CITY... TIPTON...CLINTON...MUSCATINE...DAVENPORT...BETTENDORF... SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...MOUNT PLEASANT... BURLINGTON...KEOSAUQUA...FORT MADISON...STERLING...MOLINE... ROCK ISLAND...GENESEO...ALEDO...OQUAWKA...MONMOUTH...CARTHAGE... MACOMB...MEMPHIS...KAHOKA 337 PM CDT THU AUG 4 2016 ...VERY WARM AND MUGGY INTO THE EARLY EVENING... TEMPERATURES IN THE UPPER 80S TO LOWER 90S COUPLED WITH DEWPOINTS IN THE MID TO UPPER 70S WILL CREATE PEAK HEAT INDICES IN THE UPPER 90S TO LOW 100S...WITH LOCALIZED AREAS AROUND 105 IN SOUTHEAST IOWA. THE EXTREMELY HUMID CONDITIONS WILL RESULT IN AN INCREASED RISK FOR HEAT EXHAUSTION FOR THOSE WORKING OR RECREATING OUTDOORS THIS AFTERNOON AND EVENING. CONDITIONS WILL IMPROVE AFTER 6 OR 7 PM AS TEMPERATURES SLOWLY FALL THROUGH THE 80S. PLEASE USE EXTRA CAUTION IF YOU MUST BE OUTSIDE AND DRINK PLENTY OF WATER. THOSE MOST SUSCEPTIBLE TO THE HEAT ARE YOUNG CHILDREN, ELDERLY, AND PETS. UTTECH
Special weather statement, Aug 4, 5:28 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
528 PM CDT THU AUG 4 2016
IAC011-042300-
BENTON-
528 PM CDT THU AUG 4 2016
...A STRONG THUNDERSTORM WILL AFFECT BENTON COUNTY UNTIL 615 PM
CDT...
AT 527 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 8 MILES WEST OF
KEYSTONE...OR 12 MILES EAST OF TOLEDO...MOVING EAST AT 35 MPH.
WIND GUSTS UP TO 50 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.
LOCATIONS IMPACTED INCLUDE...
VINTON...BELLE PLAINE...ATKINS...URBANA...DYSART...SHELLSBURG...
NEWHALL...BLAIRSTOWN...VAN HORNE...KEYSTONE...NORWAY...GARRISON...
MOUNT AUBURN...LUZERNE...VINTON MEMORIAL AIRPORT...
BENTON COUNTY FAIRGROUNDS...CHENEY...HOEFLE-DULIN PARK...
MINNE ESTEMA PARK AND RODGERS PARK.
THIS INCLUDES INTERSTATE 380 BETWEEN MILE MARKERS 43 AND 48.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
NORTHEASTERN AND EAST CENTRAL IOWA.
LAT...LON 4221 9230 4230 9199 4230 9189 4191 9184
4186 9225 4186 9230
TIME...MOT...LOC 2227Z 250DEG 35KT 4203 9235
12The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:31 PM CDT | Special Weather Statement | DVN | Benton, Buchanan | 59 min |
| Aug 4, 6:39 PM CDT | Special Weather Statement | DVN | Buchanan | 36 min |
| Aug 4, 6:53 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 52 min |
Nearby
Special Weather Statements in Iowa, 2016Every special weather statement in 2016
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.