Alert archive / Illinois / Special Weather Statements in 2015

Special Weather Statement, NWS Quad Cities, IA

June 25, 2015McDonough County, Illinois

NWS Quad Cities, IA issued this special weather statement at Jun 25, 2015, 1:07 AM CDT for McDonough County, Illinois. It was in force for 23 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
Jun 25, 2015, 1:07 AM CDT (06:07 UTC)
Expired
Jun 25, 2015, 1:30 AM CDT
In force
23 min
Issued by
NWS Quad Cities, IA

County McDonough County, IL

The radar

The Lincoln radar (KILX), 120 km from the middle of the area, began a volume at 06:09 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 00:00Z, 6.1 hours before the alert went out and 141 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 00:00Z on 2015-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 00:00Z on 2015-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897Sfc1 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
2 J/kg
Mixed-layer CIN
-609 J/kg
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
637 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

020 
WWUS83 KDVN 250607
SPSDVN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
107 AM CDT THU JUN 25 2015
 
ILC109-250630-
MCDONOUGH-
107 AM CDT THU JUN 25 2015

...A STRONG THUNDERSTORM WILL AFFECT ...

AT 106 AM CDT...A STRONG THUNDERSTORM WAS OVER TENNESSEE...OR 9 MILES
WEST OF MACOMB...MOVING EAST AT 45 MPH.

WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THIS STORM.

THIS STORM WILL BE NEAR...
  COLCHESTER AROUND 110 AM CDT.
  MACOMB AND FANDON AROUND 115 AM CDT.
  INDUSTRY AND ADAIR AROUND 130 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE DODDSVILLE...ARGYLE
LAKE STATE PARK AND PENNINGTON POINT.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

LAT...LON 4028 9079 4032 9091 4042 9091 4052 9080
      4044 9045 4028 9045
TIME...MOT...LOC 0606Z 289DEG 37KT 4042 9085 
$$

NICHOLS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:19 PM CDTRiver Flood WarningDVNKeokuk6 days
Jun 24, 8:19 PM CDTRiver Flood WarningDVNDes Moines, Henry, Lee6 days
Jun 24, 9:06 PM CDTRiver Flood WarningDVNJohnson, Louisa, Washington5 days
Jun 24, 9:06 PM CDTRiver Flood WarningDVNLouisa8 days
Jun 24, 9:06 PM CDTRiver Flood WarningDVNLouisa7 days
Jun 24, 9:06 PM CDTRiver Flood WarningDVNLouisa8 days
Jun 24, 9:06 PM CDTRiver Flood WarningDVNJohnson, Washington5 days
Jun 24, 9:16 PM CDTSpecial Weather StatementDVNBenton44 min
Jun 24, 9:17 PM CDTSpecial Weather StatementDVNBenton43 min
Jun 24, 9:43 PM CDTRiver Flood WarningDVNDes Moines, Louisa6 days
Jun 24, 9:43 PM CDTRiver Flood WarningDVNDes Moines8 days
Jun 24, 9:43 PM CDTRiver Flood WarningDVNDes Moines, Lee8 days
Jun 24, 9:43 PM CDTRiver Flood WarningDVNLee7 days
Jun 24, 10:15 PM CDTSevere Thunderstorm WarningDVNBenton, Linn60 min
Jun 24, 10:52 PM CDTSpecial Weather StatementDVNBenton83 min
Jun 24, 11:04 PM CDTFlash Flood WarningDVNBenton6 hr
Jun 24, 11:35 PM CDTSpecial Weather StatementDVNWashington85 min
Jun 25, 10:37 AM CDTRiver Flood WarningDVNVan Buren72 hr
Jun 24, 7:27 PM CDTRiver Flood WarningDVNHancock8 days
Jun 24, 7:54 PM CDTRiver Flood WarningDVNHancock, McDonough6 days
Jun 25, 12:38 AM CDTSpecial Weather StatementDVNHenderson, McDonough, Warren52 min
Jun 24, 10:41 PM CDTSevere Thunderstorm WarningDVNScotland64 min
Jun 24, 11:30 PM CDTFlash Flood WarningDVNScotland6 hr

Nearby

Special Weather Statements in Illinois, 2015Every special weather statement in 2015

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.