Alert archive / Illinois / Special Weather Statements in 2016

Special Weather Statement, NWS Quad Cities, IA

March 15, 2016Carroll County, Illinois

NWS Quad Cities, IA issued this special weather statement at Mar 15, 2016, 12:13 PM CDT for Carroll County, Illinois. It was in force for 47 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: Mar 15, 2016, 12:13 PM CDT (17:13 UTC)
Expired: Mar 15, 2016, 1:00 PM CDT
In force: 47 min
Issued by: NWS Quad Cities, IA

County Carroll County, IL

The radar

The Quad Cities radar (KDVN), 90 km from the middle of the area, began a volume at 17:13 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, 5.2 hours before the alert went out and 84 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: 2 J/kg
Mixed-layer CIN: -270 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted.

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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 Mar 15, 7:38 AM CDT, 4 hours 35 minutes earlier.

Area forecast discussion, Mar 15, 7:38 AM CDT, 4 hours 35 minutes before

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Hazardous weather outlook, Mar 15, 4:25 AM CDT, 7 hours 48 minutes before

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In the hours before

Special weather statement, Mar 15, 6:28 AM CDT, 5 hours 45 minutes before

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Special weather statement, Mar 15, 6:56 AM CDT, 5 hours 17 minutes before

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Special weather statement, Mar 15, 7:24 AM CDT, 4 hours 49 minutes before

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Local storm report, Mar 15, 9:16 AM CDT, 2 hours 57 minutes before

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Special weather statement, Mar 15, 10:30 AM CDT, 1 hour 43 minutes before

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Special weather statement, Mar 15, 12:13 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1213 PM CDT TUE MAR 15 2016

ILC015-177-151800-
CARROLL-STEPHENSON-
1213 PM CDT TUE MAR 15 2016

...A LINE OF THUNDERSTORMS WILL AFFECT PORTIONS OF CARROLL AND
STEPHENSON COUNTIES...

AT 1211 PM CDT...A LINE OF THUNDERSTORMS WAS ALONG A LINE EXTENDING
FROM 7 MILES NORTH OF MOUNT CARROLL TO ARGO FAY...AND MOVING
NORTHEAST AT 35 MPH.

PEA SIZE HAIL IS POSSIBLE WITH THESE STORMS ALONG WITH OCCASIONAL
LIGHTNING STRIKES.

LOCATIONS IMPACTED INCLUDE...
FREEPORT...MOUNT CARROLL...LANARK...FAIRHAVEN...PEARL CITY...SHANNON...
CHADWICK...GERMAN VALLEY...RIDOTT...ARGO FAY...STEPHENSON  COUNTY
FAIRGROUNDS...ALBERTUS AIRPORT...BOLTON...HITT AND IDEAL.

TORRENTIAL RAINFALL IS ALSO POSSIBLE WITH THESE STORMS...DO NOT
DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

LAT...LON 4220 8969 4200 8969 4193 8994 4193 9009
      4216 9000 4220 8992 4229 8981 4232 8940
      4220 8940
TIME...MOT...LOC 1711Z 243DEG 28KT 4219 8994 4198 9001

UTTECH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 3:48 AM CDT	High Wind Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more	12 hr
Mar 15, 5:35 AM CDT	Special Weather Statement	DVN	Henry, Jefferson, Keokuk, Van Buren, Washington	55 min
Mar 15, 6:28 AM CDT	Special Weather Statement	DVN	Des Moines, Henry, Lee, Louisa	32 min
Mar 15, 6:56 AM CDT	Special Weather Statement	DVN	Des Moines, Louisa	94 min
Mar 15, 10:30 AM CDT	Special Weather Statement	DVN	Jackson	60 min
Mar 15, 3:27 PM CDT	High Wind Warning	DVN	Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more	22 hr
Mar 15, 3:27 PM CDT	Wind Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	29 hr
Mar 15, 5:09 PM CDT	Severe Thunderstorm Warning	DVN	Lee	66 min
Mar 15, 5:27 PM CDT	Tornado Warning	DVN	Lee	48 min
Mar 15, 5:58 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Louisa, Washington	47 min
Mar 15, 6:05 PM CDT	Tornado Warning	DVN	Des Moines, Lee	31 min
Mar 15, 6:26 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Louisa, Muscatine	49 min
Mar 15, 6:30 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	45 min
Mar 15, 6:50 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	55 min
Mar 15, 7:24 AM CDT	Special Weather Statement	DVN	Henderson, Warren	66 min
Mar 15, 4:56 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	64 min
Mar 15, 6:03 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson, McDonough, Warren	57 min
Mar 15, 6:06 PM CDT	Tornado Warning	DVN	Hancock, McDonough	54 min
Mar 15, 6:29 PM CDT	Tornado Warning Tornado observed	DVN	McDonough, Warren	33 min

Nearby

Special Weather Statements in Illinois, 2016 Every 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.