Alert archive / Kansas / Special Weather Statements in 2012

Special Weather Statement, NWS Wichita, KS

July 29, 2012Sedgwick County, Kansas

NWS Wichita, KS issued this special weather statement at Jul 29, 2012, 5:34 AM CDT for Sedgwick County, Kansas. It was in force for 41 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: Jul 29, 2012, 5:34 AM CDT (10:34 UTC)
Expired: Jul 29, 2012, 6:15 AM CDT
In force: 41 min
Issued by: NWS Wichita, KS

County Sedgwick County, KS

The radar

The Wichita radar (KICT), 31 km from the middle of the area, began a volume at 10:34 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

Topeka, KS (KTOP), launched 00:00Z, 10.6 hours before the alert went out and 226 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: 981 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 2545 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 110 m²/s²
0-3 km storm-relative helicity: 404 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.4

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 Wichita, KS wrote its last area forecast discussion before this special weather statement went out at Jul 29, 3:35 AM CDT, 1 hour 59 minutes earlier.

Area forecast discussion, Jul 29, 3:35 AM CDT, 1 hour 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
335 AM CDT SUN JUL 29 2012

.SYNOPSIS...

A SE-MOVING MID-LVL SHORTWAVE SCOOTING SE OVER NEBRASKA & SD MANAGED TO
PUSH A WEAK FRONTAL BOUNDARY SUFFICIENTLY SE TO ENABLE THE ASSOCIATED TS
TO VENTURE FURTHER S/SE OVER CNTRL KS EARLY THIS MORNING. AT 3 AM CDT...
THE ELONGATED TSRA CLUSTER HAD ENCROACHED UPON KHUT & KEWK & AT CURRENT
TRENDS SHOULD REACH KICT & EL DORADO ~4AM.

.DISCUSSION...

FORECAST HIGHLIGHT: HEAT ADVISORY FOR ALL OK-BORDERING COUNTIES IS BEING
EXTENDED TIL 7 PM MON.

TODAY-MON NGT:
THE IMMEDIATE FOCUS IS ON LONGEVITY OF AFORE-MENTIONED TSRA CLUSTER. PER
IR IMAGERY CONVECTION HAS BEGUN TO WEAKEN SO FOR NOW ANTICIPATE CLUSTER
TO HAVE DISSIPATED BY 7AM. OF COURSE THE MUCH MORE SIGNIFICANT FOCUS IS
ON H-E-A-T. WITH AN E-W ORIENTED STATIONARY FRONT SETTING UP CAMP RIGHT
THROUGH THE HEART OF KICT COUNTRY THROUGH MON EVENING A SHARPENING TEMP
GRADIENT WILL RESULT WITH MOST OF SC & SE KS SWEATING IT OUT WITH HIGHS
OF 105-110F WITH THE HOTTEST MAXES ALONG THE OK BORDER. THEREFORE...THE
HEAT ADVISORY HAS BEEN EXTENDED UNTIL 7PM MON FOR ALL OK-BORDERING
COUNTIES. WITH THE FRONT IN THE AREA THE POTENTIAL FOR LATE AFTERNOON &
EARLY EVENING TSRA CONTINUES OVER MUCH OF THE AREA.

TUE:
THE PRIMARY CONCERN IS THE POTENTIAL FOR EXTENDING THE HEAT ADVISORY FOR
OK-BORDERING COUNTIES WHERE HEAT INDICES OF 105-108F ARE PROJECTED. WAS
TEMPTED TO EXTEND THE "NEW" ADVISORY TIL 7PM BUT WITH SOME UNCERTAINTY
EXISTING WITH RESPECT TO DWPTS HAVE OPTED TO "STICK" WITH 7PM MON.

REST OF THE WEEK:
WITH THE FRONT MEANDERING ABOUT THE PREMISES...PLUS THE FACT THAT THERE
WILL BE OCCASIONAL WEAK MID-LVL SHORTWAVES VENTURING OVER THE NRN/CNTRL
PLAINS A FEW TSRA ARE POSSIBLE NEARLY EACH AFTERNOON & EVENING. FOR NOW
HAVE KEPT ASSIGNED 15-20% ASSIGNED TO THE NEIGHBORHOOD FOR MOST DAYS.

.CLIMATE...

RECORD HIGH TEMPERATURES:

TODAY:
WICHITA: 109 IN 1978; SALINA: 108 IN 1940; CHANUTE: 108 IN 1986.

JULY 30TH:
WICHITA: 110 IN 1986; SALINA: 108 IN 1917; CHANUTE: 108 IN 1986.

&&

.AVIATION...06Z TAFS KRSL/KSLN/KHUT/KICT/KCNU

A CLUSTER OF SHOWERS AND THUNDERSTORMS CONTINUES TO IMPACT
PORTIONS OF NORTH CENTRAL KANSAS EARLY THIS MORNING. ALTHOUGH VFR
CIGS SHOULD PREVAIL...GUSTY WINDS OF 15 TO 25 KNOTS MAY BECOME
VARIABLE IN DIRECTION THROUGH 08-09Z BEFORE THE ACTIVITY
DIMINISHES AND DRIFTS SOUTH AND EAST OF THE AREA. THE REMNANT
OUTFLOW/STATIONARY FRONT MAY BECOME A FOCUS FOR ADDITIONAL SHOWER
AND THUNDERSTORM DEVELOPMENT ON SUNDAY AFTERNOON BUT CONFIDENCE IN
HOW FAR SOUTH THE BOUNDARY DRIFTS REMAINS UNCERTAIN.

MWM

&&

.PRELIMINARY POINT TEMPS/POPS...
WICHITA-KICT   108  78 106  77 /  10  10  20  20
HUTCHINSON     108  78 105  77 /  20  20  20  20
NEWTON         107  78 103  77 /  20  20  20  20
ELDORADO       107  77 101  76 /  20  20  20  20
WINFIELD-KWLD  108  79 109  78 /  10  10  10  20
RUSSELL        108  76 100  76 /  20  20  20  20
GREAT BEND     108  77 103  76 /  20  20  20  20
SALINA         108  77 102  76 /  20  20  20  20
MCPHERSON      108  78 103  77 /  20  20  20  20
COFFEYVILLE    108  77 106  76 /  10  10  20  20
CHANUTE        107  76 104  76 /  20  20  20  20
IOLA           107  76 104  76 /  20  20  20  20
PARSONS-KPPF   108  77 104  76 /  10  10  20  20

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
HEAT ADVISORY UNTIL 7 PM CDT MONDAY FOR KSZ091>093-098>100.

HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR KSZ032-033-047>053-
067>072-082-083-094>096.

&&

Hazardous weather outlook, Jul 29, 5:27 AM CDT, 7 minutes before

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In the hours before

Special weather statement, Jul 29, 12:37 AM CDT, 4 hours 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
1237 AM CDT SUN JUL 29 2012

KSZ049-290615-
SALINE-
1237 AM CDT SUN JUL 29 2012

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR SALINE COUNTY...

AT 1235 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES
WEST OF SALINA TO BROOKVILLE...AND MOVING SOUTHEAST AT 25 MPH.

WINDS TO 50 MPH ARE POSSIBLE WITH THESE STORMS.

THE STORMS ARE NOT EXPECTED TO BECOME SEVERE.

&&

LAT...LON 3880 9737 3861 9737 3861 9792 3877 9793
      3883 9793 3891 9775
TIME...MOT...LOC 0537Z 305DEG 21KT 3884 9773 3877 9791

HOWERTON

Special weather statement, Jul 29, 1:19 AM CDT, 4 hours 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
119 AM CDT SUN JUL 29 2012

KSZ052-290700-
MARION-
119 AM CDT SUN JUL 29 2012

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR MARION COUNTY...

AT 117 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HOPE TO TAMPA...AND
MOVING SOUTHEAST AT 15 MPH.

WINDS TO 50 MPH ARE POSSIBLE WITH THESE STORMS.

THE STORMS ARE NOT EXPECTED TO BECOME SEVERE.

&&

LAT...LON 3860 9692 3853 9692 3853 9683 3852 9682
      3836 9683 3836 9720 3858 9721 3861 9693
TIME...MOT...LOC 0619Z 328DEG 15KT 3863 9711 3854 9721

HOWERTON

Special weather statement, Jul 29, 1:45 AM CDT, 3 hours 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
145 AM CDT SUN JUL 29 2012

KSZ051-290730-
MCPHERSON-
145 AM CDT SUN JUL 29 2012

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR MCPHERSON COUNTY...

AT 143 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROXBURY TO
MARQUETTE...AND MOVING SOUTHEAST AT 20 MPH.

WINDS TO 50 MPH ARE POSSIBLE WITH THESE STORMS.

THE STORMS ARE NOT EXPECTED TO BECOME SEVERE.

&&

LAT...LON 3839 9737 3827 9737 3827 9779 3859 9793
      3861 9793 3861 9741 3861 9738
TIME...MOT...LOC 0645Z 313DEG 18KT 3858 9743 3858 9785

HOWERTON

Special weather statement, Jul 29, 4:58 AM CDT, 36 minutes before

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Special weather statement, Jul 29, 5:34 AM CDT, 0 minutes before

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The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 12:37 AM CDT	Special Weather Statement	ICT	Saline	38 min
Jul 29, 1:19 AM CDT	Special Weather Statement	ICT	Marion	41 min
Jul 29, 1:45 AM CDT	Special Weather Statement	ICT	McPherson	45 min
Jul 29, 4:58 AM CDT	Special Weather Statement	ICT	Reno	47 min
Jul 29, 5:01 PM CDT	Special Weather Statement	ICT	Ellsworth	29 min
Jul 29, 5:15 PM CDT	Special Weather Statement	ICT	Ellsworth	30 min
Jul 29, 5:47 PM CDT	Special Weather Statement	ICT	Greenwood	28 min

Nearby

Special Weather Statements in Kansas, 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.