Alert archive / Kansas / Special Weather Statements in 2013

Special Weather Statement, NWS Topeka, KS

April 17, 2013Nemaha County, Kansas

NWS Topeka, KS issued this special weather statement at Apr 17, 2013, 3:13 AM CDT for Nemaha County, Kansas. 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
Apr 17, 2013, 3:13 AM CDT (08:13 UTC)
Expired
Apr 17, 2013, 4:00 AM CDT
In force
47 min
Issued by
NWS Topeka, KS

County Nemaha County, KS

The radar

The Topeka radar (KTWX), 104 km from the middle of the area, began a volume at 08:16 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

Topeka, KS (KTOP), launched 00:00Z, 8.2 hours before the alert went out and 100 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, Topeka, KS at 00:00Z on 2013-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 00:00Z on 2013-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1169 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
521 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 Topeka, KS wrote its last area forecast discussion before this special weather statement went out at Apr 17, 2:23 AM CDT, 50 minutes earlier.

Area forecast discussion, Apr 17, 2:23 AM CDT, 50 minutes before
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Hazardous weather outlook, Apr 16, 3:45 PM CDT, 11 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
345 PM CDT TUE APR 16 2013

KSZ008>012-020>024-026-034>040-054>056-058-059-172045-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
345 PM CDT TUE APR 16 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STORMS ARE EXPECTED TO REDEVELOP OVERNIGHT WITH AN INCREASING
THREAT FOR SEVERE STORMS AFTER MIDNIGHT. LARGE HAIL WILL BE THE
PRIMARY THREAT FROM STRONG STORMS THAT DEVELOP.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO CONTINUE INTO
WEDNESDAY ACROSS MUCH OF THE AREA. THE PRIMARY THREAT FROM THESE
STORMS WILL ONCE AGAIN BE LARGE HAIL...ALTHOUGH DAMAGING WIND
GUSTS AND AN ISOLATED TORNADO CANNOT BE RULED OUT...WITH
LOCATIONS ALONG AND SOUTHEAST OF INTERSTATE 35 AT GREATER RISK.

RAIN MAY MIX WITH OR CHANGE OVER TO LIGHT SNOW ACROSS PARTS OF
THE AREA LATE WEDNESDAY NIGHT AND THURSDAY...ALTHOUGH ANY
ACCUMULATIONS OF SNOW SHOULD BE LIGHT AND BE LIMITED TO THE NORTH
CENTRAL COUNTIES. LOW TEMPERATURES IN THE MIDDLE 20S TO LOWER 30S
ARE POSSIBLE ON BOTH FRIDAY AND SATURDAY MORNINGS.

THERE IS ANOTHER CHANCE FOR THUNDERSTORMS SUNDAY AND SUNDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION SHOULD NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Local storm report, Apr 17, 1:05 AM CDT, 2 hours 8 minutes before
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Special weather statement, Apr 17, 1:06 AM CDT, 2 hours 7 minutes before
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Special weather statement, Apr 17, 1:46 AM CDT, 1 hour 27 minutes before
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Special weather statement, Apr 17, 2:17 AM CDT, 56 minutes before
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Special weather statement, Apr 17, 3:06 AM CDT, 7 minutes before
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Special weather statement, Apr 17, 3:13 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 1:06 AM CDTSpecial Weather StatementTOPPottawatomie24 min
Apr 17, 1:46 AM CDTSpecial Weather StatementTOPNemaha29 min
Apr 17, 2:17 AM CDTSpecial Weather StatementTOPNemaha43 min
Apr 17, 3:06 AM CDTSpecial Weather StatementTOPCloud24 min
Apr 17, 3:19 AM CDTSpecial Weather StatementTOPMorris41 min
Apr 17, 4:04 AM CDTSpecial Weather StatementTOPWabaunsee41 min
Apr 17, 4:11 AM CDTSevere Thunderstorm WarningTOPDickinson, Geary, Morris49 min
Apr 17, 6:13 AM CDTSpecial Weather StatementTOPNemaha32 min
Apr 17, 6:17 AM CDTSpecial Weather StatementTOPBrown, Nemaha28 min
Apr 17, 6:58 AM CDTSpecial Weather StatementTOPGeary, Pottawatomie, Riley32 min
Apr 17, 7:18 AM CDTSpecial Weather StatementTOPNemaha27 min
Apr 17, 7:50 AM CDTSpecial Weather StatementTOPBrown, Nemaha40 min
Apr 17, 8:50 AM CDTSpecial Weather StatementTOPBrown25 min
Apr 17, 1:51 PM CDTFlood WatchTOPAnderson, Brown, Coffey, Douglas, Franklin, Jackson and 8 more14 hr
Apr 17, 2:01 PM CDTSpecial Weather StatementTOPWashington29 min
Apr 17, 2:26 PM CDTSpecial Weather StatementTOPClay, Ottawa34 min
Apr 17, 3:00 PM CDTSpecial Weather StatementTOPCloud, Ottawa45 min
Apr 17, 3:14 PM CDTSpecial Weather StatementTOPDickinson, Geary46 min
Apr 17, 4:26 PM CDTSpecial Weather StatementTOPDickinson34 min
Apr 17, 4:34 PM CDTSpecial Weather StatementTOPPottawatomie26 min
Apr 17, 4:53 PM CDTAreal Flood AdvisoryTOPBrown, Nemaha112 min
Apr 17, 5:49 PM CDTFlash Flood WarningTOPJackson, Pottawatomie, Riley, Wabaunsee4 hr
Apr 17, 6:50 PM CDTAreal Flood AdvisoryTOPBrown, Jackson, Nemaha115 min

Nearby

Special Weather Statements in Kansas, 2013Every 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.