Alert archive / Illinois / Special Weather Statements in 2014
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Aug 4, 2014, 5:30 PM CDT for Henderson County, Warren County, Illinois. It was in force for 60 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, 2014, 5:30 PM CDT (22:30 UTC)
- Expired
- Aug 4, 2014, 6:30 PM CDT
- In force
- 60 min
- Issued by
- NWS Quad Cities, IA
Counties Henderson County, IL, Warren County, IL
The radar
The Quad Cities radar (KDVN), 80 km from the middle of the area, began a volume at 22:32 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 82 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
- 95 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1385 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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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, 3:22 PM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, Aug 4, 3:22 PM CDT, 2 hours 8 minutes before
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</html>Hazardous weather outlook, Aug 4, 5:04 AM CDT, 12 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 504 AM CDT MON AUG 4 2014 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-051015- 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- 504 AM CDT MON AUG 4 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 SCATTERED THUNDERSTORMS WILL DEVELOP TODAY WITH A FEW POSSIBLY IN THE MORNING BUT BECOMING MORE NUMEROUS IN THE AFTERNOON AND EARLY EVENING. THE MAIN THREATS WITH THESE THUNDERSTORMS WILL BE LIGHTNING AND LOCALLY HEAVY RAIN...THE LATTER DUE TO THE SLOW MOVING NATURE EXPECTED FROM THESE STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ISOLATED TO SCATTERED THUNDERSTORMS WILL AGAIN BE POSSIBLE ON TUESDAY...BUT A MORE WIDESPREAD THREAT WILL OCCUR LATE TUESDAY NIGHT INTO WEDNESDAY WHEN A LARGER COMPLEX OF THUNDERSTORMS MOVES ACROSS THE REGION. WHILE ORGANIZED SEVERE THUNDERSTORMS DO NOT APPEAR TO BE A THREAT AT THIS TIME...THERE ARE SIGNS THAT THIS SYSTEM MAY BE ABLE TO PRODUCE HEAVY RAINFALL. DEPENDING ON WHERE THIS SYSTEM EVENTUALLY TRACKS...IT WILL HAVE THE POTENTIAL TO PRODUCE WIDESPREAD ONE OR MORE INCHES OF RAIN BY WEDNESDAY EVENING. HEAVY RAINFALL AT HIGH RATES MAY BE ABLE TO PRODUCE URBAN AND SMALL STREAM FLOODING. MORE THUNDERSTORMS WILL BE POSSIBLE ACROSS PORTIONS OF THE OUTLOOK AREA SOUTH OF INTERSTATE 80 ON THURSDAY. THE THREAT FOR SEVERE WEATHER WITH THESE STORMS APPEARS LOW AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED TODAY...ALTHOUGH REPORTS OF RAINFALL AMOUNTS IN EXCESS OF ONE INCH WOULD BE APPRECIATED. WOLF/12
In the hours before
Special weather statement, Aug 4, 5:04 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 504 PM CDT MON AUG 4 2014 IAZ041-042-053-054-065-066-068-ILZ001-002-007-009-015-050100- DELAWARE-DUBUQUE-JONES-JACKSON-CEDAR-CLINTON-SCOTT-JO DAVIESS- STEPHENSON-CARROLL-WHITESIDE-ROCK ISLAND- INCLUDING THE CITIES OF...MANCHESTER...DUBUQUE...ANAMOSA... MAQUOKETA...TIPTON...CLINTON...BETTENDORF...DAVENPORT...GALENA... FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...MOLINE... ROCK ISLAND 504 PM CDT MON AUG 4 2014 ...THUNDERSTORMS AND SHOWERS TO IMPACT REGION THROUGH 8 PM... A DEVELOPING AREA OF THUNDERSTORMS AND SHOWERS IN NORTHEAST IOWA AND SOUTHERN WISCONSIN IS MOVING SOUTHEAST AT 20 TO 25 MPH. MOST LOCATIONS WILL PICK UP LIGHT TO LOCALLY MODERATE RAINFALL TOTALS OF A TENTH TO LOCALLY OVER A HALF INCH OF RAIN THROUGH 8 PM. THE STRONGEST STORMS MAY PRODUCE A PERIOD OF HEAVY RAIN...GUSTY WINDS UP TO 30 MPH AND POSSIBLE PEA SIZED HAIL. ISOLATED RAIN TOTALS OF AROUND AN 1 INCH MAY ALSO OCCUR IN THE STRONGEST STORMS...THIS MAY RESULT IN MINOR PONDING ISSUES IN FAVORED LOW LYING AREAS FOR AN HOUR OR LESS. NICHOLS
Special weather statement, Aug 4, 5:30 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 530 PM CDT MON AUG 4 2014 IAZ089-ILZ024>026-042330- DES MOINES-HENDERSON-MERCER-WARREN- 530 PM CDT MON AUG 4 2014 ...STRONG THUNDERSTORM POSSIBLE... AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR BIGGSVILLE...OR 8 MILES SOUTHEAST OF OQUAWKA...MOVING EAST AT 25 MPH. * THE THUNDERSTORM WILL BE NEAR... KIRKWOOD AROUND 540 PM CDT... MONMOUTH AROUND 555 PM CDT... PEA SIZE HAIL...WINDS GREATER THAN 35 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY RAIN...ARE EXPECTED WITH THIS STORM. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. EXPECT PONDING OF WATER ON ROADS AND IN LOW-LYING AREAS. LAT...LON 4095 9096 4114 9044 4075 9044 4074 9094 TIME...MOT...LOC 2229Z 257DEG 23KT 4084 9084 NICHOLS
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 6:48 PM CDT | Special Weather Statement | DVN | Johnson | 42 min |
| Aug 4, 5:57 PM CDT | Special Weather Statement | DVN | Bureau | 48 min |
Nearby
Special Weather Statements in Illinois, 2014Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.