Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Quad Cities, IA

October 4, 2012Scotland County, Missouri

NWS Quad Cities, IA issued this special weather statement at Oct 4, 2012, 2:25 PM CDT for Scotland County, Missouri. It was in force for 65 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: Oct 4, 2012, 2:25 PM CDT (19:25 UTC)
Expired: Oct 4, 2012, 3:30 PM CDT
In force: 65 min
Issued by: NWS Quad Cities, IA

County Scotland County, MO

The radar

The Quad Cities radar (KDVN), 182 km from the middle of the area, began a volume at 19:25 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, 7.4 hours before the alert went out and 188 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1434 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 225 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.

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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 Oct 4, 12:54 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Oct 4, 12:54 PM CDT, 1 hour 31 minutes before

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Hazardous weather outlook, Oct 4, 4:00 AM CDT, 10 hours 25 minutes before

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In the hours before

Special weather statement, Oct 4, 12:13 PM CDT, 2 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1213 PM CDT THU OCT 4 2012

IAZ054-066-068-ILZ007-009-015>017-024>026-034-035-041815-
BUREAU-CARROLL-CLINTON-HANCOCK-HENDERSON-HENRY-JACKSON-MCDONOUGH-
MERCER-ROCK ISLAND-SCOTT-WARREN-WHITESIDE-
1213 PM CDT THU OCT 4 2012

...LINE OF THUNDERSTORMS MOVING INTO ILLINOIS...

AT 1206 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS ALONG A LINE EXTENDING FROM SAVANNA ILLINOIS TO JUST
EAST OF KEOKUK IOWA...MOVING EAST AT 25 MPH.

* THUNDERSTORMS WILL BE NEAR...
  SAVANNA...SHERRARD...CABLE AND KIRKWOOD AROUND 1215 PM CDT...
  COLONA...WEST POINT...RAPIDS CITY AND ALBANY AROUND 1220 PM CDT...
  WARNER AND ORION AROUND 1225 PM CDT...

WIND GUSTS TO 35 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING...BRIEF
HEAVY RAIN...ARE LIKELY WITH THESE STORMS.

IF YOU HEAR THUNDER, MOVE IMMEDIATELY TO A STURDY BUILDING OR CAR
UNTIL THE STORM HAS PASSED.

LAT...LON 4026 9142 4113 9076 4215 9029 4207 8968
      4175 8963 4114 8991 4114 9043 4042 9044
      4027 9056 4028 9090 4020 9091
TIME...MOT...LOC 1709Z 280DEG 23KT 4205 9020 4111 9064
          4033 9124

HAASE

Special weather statement, Oct 4, 2:25 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 4, 3:20 PM CDT	Special Weather Statement	DVN	Lee	55 min
Oct 4, 12:13 PM CDT	Special Weather Statement	DVN	Carroll, Hancock, Henderson, Henry, McDonough, Rock Island and 2 more	62 min
Oct 4, 4:08 PM CDT	Special Weather Statement	DVN	Hancock, McDonough	52 min

Nearby

Special Weather Statements in Missouri, 2012 Every special weather statement in 2012

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.