Alert archive / Kansas / Special Weather Statements in 2013

Special Weather Statement, NWS Wichita, KS

March 30, 2013Sumner County, Kansas

NWS Wichita, KS issued this special weather statement at Mar 30, 2013, 12:17 AM CDT for Sumner County, Kansas. It was in force for 28 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 30, 2013, 12:17 AM CDT (05:17 UTC)
Expired: Mar 30, 2013, 12:45 AM CDT
In force: 28 min
Issued by: NWS Wichita, KS

County Sumner County, KS

The radar

The Wichita radar (KICT), 65 km from the middle of the area, began a volume at 05:16 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

Lamont, OK (KLMN), launched 00:00Z, 5.3 hours before the alert went out and 53 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: 1041 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1126 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.0

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 Wichita, KS wrote its last area forecast discussion before this special weather statement went out at Mar 29, 11:27 PM CDT, 50 minutes earlier.

Area forecast discussion, Mar 29, 11:27 PM CDT, 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
1127 PM CDT FRI MAR 29 2013

.UPDATE...
ISSUED AT 1007 PM CDT FRI MAR 29 2013

CURRENTLY THERE ARE TWO MAIN AREAS OF ACTIVITY...ONE OVER NORTHERN
KANSAS AND THE SECOND OVER NORTHERN/CENTRAL OKLAHOMA. EXPECTING
THE NORTHERN AREA TO PUSH INTO CENTRAL KANSAS AND GRADUALLY
DISSIPATE OVERNIGHT. THE SECOND AREA SHOULD GROW AND EXPAND OVER
SOUTHERN KANSAS FOR THE REST OF THE NIGHT...AS ISENTROPIC LIFT ON
THE 300K SURFACE RAMPS UP. THIS ACTIVITY WILL THEN MOVE EASTWARD
INTO SOUTHEAST KANSAS OVERNIGHT. INSTABILITY/SHEAR COULD SUPPORT A
FEW STRONG STORMS WITH SMALL HAIL BEING THE MAIN RISK.

JAKUB

&&

.SHORT TERM...(TONIGHT THROUGH MONDAY) ISSUED AT 230 PM CDT FRI
MAR 29 2013

SCATTERED SHOWERS/STORMS WILL BE POSSIBLE AREA-WIDE TONIGHT ALTHOUGH
NOT EXPECTING WIDESPREAD COVERAGE. THIS WILL OCCUR IN RESPONSE TO
WEAK MOISTURE ADVECTION AND ASCENT WITH SOUTHERLY LOW-LEVEL FLOW BENEATH
NORTHWESTERLY FLOW ALOFT.

A SHORTWAVE TROUGH WILL PUSH ACROSS THE NORTHERN/CENTRAL PLAINS
SATURDAY AFTERNOON/EVENING...ALLOWING A PACIFIC COLD FRONT TO PUSH
SOUTHWARD THROUGH OUR AREA. LOW STRATUS MAY BE SLOW TO ERODE AHEAD
OF THE FRONT LEADING TO INSOLATION CONCERNS REGARDING CONVECTION.
HOWEVER THE NAM/GFS SUGGEST MODERATE-STRONG INSTABILITY POSSIBLE
ALONG WITH WEAK LOW-LEVEL CONVERGENCE ALONG/E OF THE KS TURNPIKE
SATURDAY AFTERNOON. IF DIURNALLY-ENHANCED STORMS ARE ABLE TO
REDEVELOP...THEY COULD BECOME ORGANIZED SEVERE WITH HAIL/WIND
THREATS GIVEN MAGNITUDE OF DEEP LAYER SHEAR/INSTABILITY. PRECIPITATION
CHANCES LOOK TO END BEHIND THE FRONT PASSAGE SATURDAY INTO
SATURDAY EVENING. ABOVE NORMAL TEMPERATURES ARE SLATED FOR EASTER
WEEKEND.

SUNDAY-MONDAY: A POLAR VORTEX IS PROGGED TO MOVE FROM CENTRAL CANADA
INTO SOUTHEAST CANADA AND THE GREAT LAKES DURING THE PERIOD. THE
ASSOCIATED COLDER AIR IS PROGGED TO PUSH SOUTHWARD THROUGH OUR AREA
SUNDAY NIGHT INTO MONDAY. WIND CONVERGENCE WITHIN THE MID-LEVEL
BAROCLINIC ZONE IS PROGGED TO LEAD TO FRONTOGENESIS/MOISTENING AS
COLDER AIR SURGES IN. THIS WILL RESULT IN A CHANCE OF RAIN/SNOW IN
OUR AREA SUNDAY NIGHT-MONDAY ALTHOUGH ANY ACCUMULATIONS SHOULD BE
LIGHT GIVEN THE MARGINAL TEMP PROFILES AND WARM GROUND.

JMC

.LONG TERM...(TUESDAY THROUGH FRIDAY) ISSUED AT 230 PM CDT FRI
MAR 29 2013

POLAR VORTEX OVER THE NORTHEAST WILL SHIFT EASTWARD TUESDAY INTO
WEDNESDAY. UPPER LOW OFF THE CALIFORNIA COAST THIS AFTERNOON IS
PROJECTED TO MOVE EAST ACROSS THE SOUTHERN PLAINS TUESDAY NIGHT INTO
THURSDAY WITH THE ECMWF OFFERING A SOMEWHAT MORE CLOSED/STRONGER/SLOWER
SYSTEM. GIVEN THE TEMPERATURE MODIFICATION THAT WILL OCCUR DURING
THE WEEK...ANY PRECIPITATION FROM THIS SYSTEM LOOKS TO BE IN THE
FORM OF LIGHT RAIN WITH CHANCES ONLY 15-30% THIS FAR OUT.

JMC

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z SATURDAY NIGHT)
ISSUED AT 1127 PM CDT FRI MAR 29 2013

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE EASTWARD ACROSS THE
REGION OVERNIGHT...WITH THE BULK OF THE ACTIVITY AFFECTING MAINLY
SOUTHERN KANSAS. LOW CLOUDS COULD DEVELOP FOR LATE TONIGHT AND
EARLY SATURDAY MORNING BEFORE SCOURING OUT FROM WEST TO EAST...AS
A COLD FRONT PUSHES SOUTHWARD ACROSS KANSAS. SHOWERS AND
THUNDERSTORMS COULD REDEVELOP ALONG THE FRONTAL BOUNDARY LATE IN
THE AFTERNOON OVER SOUTHEAST KANSAS.

JAKUB

&&

.FIRE WEATHER...
ISSUED AT 230 PM CDT FRI MAR 29 2013

LOW GRASSLAND FIRE DANGER IS EXPECTED TONIGHT WITH LIGHT WINDS
AND HIGH RELATIVE HUMIDITY VALUES. HIGH TO VERY HIGH FIRE DANGER
POTENTIAL WILL EXIST SATURDAY AFTERNOON IN CENTRAL AND SOUTH
CENTRAL KS WITH SLIGHTLY ABOVE NORMAL TEMPERATURES AND MARGINAL
GUSTY NORTHWEST WINDS BEHIND THE COLD FRONT. GRASSLAND FIRE DANGER
SHOULD BE LOW THE REMAINDER OF THE WEEKEND WITH LIGHT WINDS.

JMC

&&

.PRELIMINARY POINT TEMPS/POPS...
WICHITA-KICT    52  75  42  72 /  50  20  10   0
HUTCHINSON      51  73  41  72 /  40  10  10  10
NEWTON          51  73  42  71 /  40  20  10   0
ELDORADO        52  73  42  70 /  50  30  10  10
WINFIELD-KWLD   54  74  44  71 /  70  30  10  10
RUSSELL         47  72  40  70 /  30  10  10  10
GREAT BEND      49  72  41  71 /  30  10  10  10
SALINA          51  72  40  70 /  30  10  10  10
MCPHERSON       51  73  41  71 /  40  10  10  10
COFFEYVILLE     54  73  45  70 /  60  50  30  10
CHANUTE         50  71  42  69 /  50  50  30  10
IOLA            49  71  41  68 /  50  50  20  10
PARSONS-KPPF    52  71  43  69 /  50  50  30  10

&&

.ICT WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

Hazardous weather outlook, Mar 29, 10:31 PM CDT, 1 hour 46 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1031 PM CDT FRI MAR 29 2013

KSZ032-033-047>053-067>072-082-083-091>096-098>100-310345-
RUSSELL-LINCOLN-BARTON-ELLSWORTH-SALINE-RICE-MCPHERSON-MARION-CHASE-
RENO-HARVEY-BUTLER-GREENWOOD-WOODSON-ALLEN-KINGMAN-SEDGWICK-HARPER-
SUMNER-COWLEY-ELK-WILSON-NEOSHO-CHAUTAUQUA-MONTGOMERY-LABETTE-
1031 PM CDT FRI MAR 29 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL KANSAS...
SOUTH CENTRAL KANSAS AND SOUTHEAST KANSAS.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS WILL BE POSSIBLE TONIGHT ACROSS MUCH OF
THE AREA. A FEW STRONG STORMS WITH SMALL HAIL COULD AFFECT
SOUTHERN KANSAS OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE FOR SATURDAY AFTERNOON
AND SATURDAY EVENING. THE GREATEST SEVERE THREAT WILL BE ALONG OR
EAST OF THE KANSAS TURNPIKE WITH QUARTER SIZED HAIL AND 60 MPH
WINDS BOTH POSSIBLE.

MUCH COLDER AIR WILL MOVE INTO THE AREA SUNDAY NIGHT INTO MONDAY...
CAUSING
THE RAIN TO MIX WITH...AND THEN CHANGE TO SNOW BEFORE ENDING ON
MONDAY EVENING. SOME LIGHT SNOW ACCUMULATIONS ARE POSSIBLE ON
MONDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

&&

FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR
WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP

In the hours before

Special weather statement, Mar 30, 12:17 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
1217 AM CDT SAT MAR 30 2013

KSZ092-300545-
SUMNER-
1217 AM CDT SAT MAR 30 2013

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

AT 1216 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A STRONG THUNDERSTORM NEAR SOUTH HAVEN...OR 17 MILES SOUTH
OF WELLINGTON...AND MOVING NORTHEAST AT 20 MPH.

DIME SIZE HAIL IS POSSIBLE WITH THIS STORM.

&&

LAT...LON 3706 9756 3724 9716 3722 9715 3700 9715
      3699 9717 3699 9752
TIME...MOT...LOC 0517Z 245DEG 18KT 3702 9739

BILLINGS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 12:57 AM CDT	Special Weather Statement	ICT	Cowley	33 min
Mar 30, 1:26 AM CDT	Special Weather Statement	ICT	Lincoln	34 min
Mar 30, 1:38 AM CDT	Severe Thunderstorm Warning	ICT	Russell	37 min
Mar 30, 3:46 AM CDT	Special Weather Statement	ICT	Marion	29 min
Mar 30, 4:06 AM CDT	Special Weather Statement	ICT	Harvey	24 min
Mar 30, 4:42 AM CDT	Special Weather Statement	ICT	Butler, Sedgwick	48 min
Mar 30, 5:43 AM CDT	Special Weather Statement	ICT	Cowley	32 min
Mar 30, 2:40 PM CDT	Special Weather Statement	ICT	Allen	35 min
Mar 30, 3:05 PM CDT	Severe Thunderstorm Warning	ICT	Allen	40 min
Mar 30, 4:20 PM CDT	Special Weather Statement	ICT	Allen	25 min
Mar 30, 5:28 PM CDT	Special Weather Statement	ICT	Neosho	47 min

Nearby

Special Weather Statements in Kansas, 2013 Every special weather statement in 2013

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.