Alert archive / Kansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 30, NWS Topeka, KS

April 11, 2001Cloud County, Republic County, Washington County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 11, 2001, 1:46 AM CDT for Cloud County, Republic County, Washington County, Kansas. It was in force for 44 min. 5 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 11, 2001, 1:46 AM CDT (06:46 UTC)
Expired: Apr 11, 2001, 2:30 AM CDT
In force: 44 min
Issued by: NWS Topeka, KS
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Cloud County, KS, Republic County, KS, Washington County, KS

What was reported inside it

Time	Report	Where	Remark
Apr 11, 1:47 AM CDT	Thunderstorm Wind 65 E	Haddam, KS	Strong thunderstorm winds damaged a house.
Apr 11, 1:55 AM CDT	Tornado F0	Haddam, KS	A tornado touched down over open country and damaged trees and some outbuildings before dissipating near the Nebraska border.
Apr 11, 2:05 AM CDT	Tornado F1	Washington, KS	A tornado touched down near Washington and moved northeast . The tornado damaged outbuildings, an antenna, and power poles before dissipating 2 miles north of Washington.
Apr 11, 2:15 AM CDT	Thunderstorm Wind 65 E	Washington, KS
Apr 11, 2:15 AM CDT	Thunderstorm Wind 70 E	Washington, KS	Strong thunderstorm winds blew windows out of a house.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 10, 10:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 11, 12:00 AM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.8 hours before the alert went out and 163 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: 2027 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 342 m²/s²
0-3 km storm-relative helicity: 551 m²/s²
Significant tornado parameter: 6.5
Supercell composite: 24.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KTOP 110647
SVRTOP
KSC029-157-201-110730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
146 AM CDT WED APR 11 2001

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CLOUD COUNTY IN NORTH CENTRAL KANSAS
  EASTERN REPUBLIC COUNTY IN NORTH CENTRAL KANSAS
  WASHINGTON COUNTY IN NORTH CENTRAL KANSAS

* UNTIL 230 AM CDT

* AT 143 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 4 MILES NORTHWEST OF NARKA TO 4
  MILES SOUTHWEST OF CLYDE...OR FROM 30 MILES NORTH OF CONCORDIA TO
  11 MILES EAST OF CONCORDIA...MOVING EAST AT 55 MPH.

* SOME LOCATIONS AFFECTED...
  HADDAM
  MORROWVILLE
  PALMER
  LINN
  WASHINGTON
  GREENLEAF
  HOLLENBURG
  BARNES
  HANOVER

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.

LARGE HAIL...VERY HEAVY RAIN AND DAMAGING WINDS ARE LIKELY WITH THIS
STORM. TAKE COVER INSIDE A BUILDING.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

LAT...LON 3998 9748 3947 9762 3957 9735 3957 9682
          3998 9684

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 10, 3:00 PM CDT, 10 hours 46 minutes earlier.

Area forecast discussion, Apr 10, 3:00 PM CDT, 10 hours 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
3 PM CDT TUE APR 10 2001

SEVERE THUNDERSTORM POTENTIAL TONIGHT AND EARLY WEDNESDAY...THEN
TEMPERATURES AND WIND ARE MAIN FORECAST CONCERNS.

SFC ANALYSIS SHOWING LOW OVER WESTCENTRAL KANSAS WITH WARM FRONT
EAST FROM THE LOW NOW LIFTING NORTHEAST ACROSS NORTHEAST KANSAS.
SHORTWAVE OVER NORTHERN OK LIFTING NORTHEAST IS HELPING COMPLEX OF
THUNDERSTORMS OVER THE AREA. WOULD EXPECT THUNDERSTORMS NOW OVER THE
AREA TO LIFT OFF TO THE NORTHEAST WITH A BREAK IN THE THUNDERSTORMS
EXPECTED BEFORE MORE THUNDERSTORMS DEVELOP OFF TO THE WEST ALONG
DRYLINE THEN SWING RAPIDLY NORTHEAST ACROSS THE CWA THROUGH THE
NIGHT.

INCREASING LOW LEVEL JET AND SHEAR WITH DYNAMIC FORCING AHEAD OF THE
UPPER SYSTEM STILL SUPPORTS MORE SEVERE WEATHER POSSIBLE
TONIGHT...SO WILL CONTINUE TO MENTION POSSIBLE SEVERE IN THE ZONES
TONIGHT. ALTHOUGH THUNDERSTORMS MOVING INTO THE AREA OVERNIGHT MAY
STILL PRODUCE MORE HEAVY RAINFALL...EXPECT IT TO BE BRIEF AND FAST
MOVING. MODELS ALSO INDICATING THE HEAVIER RAINFALL TONIGHT TO THE
BE SOUTH AND EAST OF THE CWA. THEREFORE, WILL NOT GO WITH FLASH
FLOOD WATCH AT THIS TIME...BUT STILL MENTION HEAVY RAINFALL IN THE
ZONES.

DRY SLOT COMES INTO THE WESTERN PORTIONS OF THE CWA IN THE MORNING
AND PROGRESSES EASTWARD ACROSS THE CWA THROUGH MIDDAY. ALTHOUGH SOME
WRAPAROUND STILL POSSIBLE IN THE NORTHCENTRAL...EXPECT MOST PRECIP
TO OCCUR PRIOR TO THE SLOT SLOT IN THE MORNING HOURS WITH MOST OF
THE AFTERNOON CONVECTION EXPECTED TO THE EAST OF THE CWA. WILL
CONTINUE WITH POPS FOR TUESDAY WORDED AS MAINLY IN THE MORNING. WILL
GO WELL ABOVE MOS GUIDANCE AND EVEN FAN WITH HIGHS GENERALLY 70 TO
75. WILL GO WITH WINDS BECOMING SOUTHWEST 20 TO 30 WITH HIGHER
GUSTS...ALTHOUGH MID SHIFT WILL HAVE TO CONSIDER POSSIBLE WIND
ADVISORIES WED INTO WED NIGHT. WILL CONTINUE TREND OF HIGHS COOLING
INTO THE 60S THURSDAY WITH LOWS IN THE LOWER TO MIDDLE 40S.

.TOP...NONE

63

In the hours before

Special weather statement, Apr 10, 11:44 PM CDT, 2 hours 2 minutes before

KSZ008-020-034-110530-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1144 PM CDT TUE APR 10 2001

...TORNADO WATCH UNTIL 4 AM FOR REPUBLIC...CLOUD AND OTTAWA COUNTIES
IN NORTHCENTRAL KANSAS...

SEVERE THUNDERSTORM WATCH NUMBER 124...ISSUED EARLIER FOR
REPUBLIC AND CLOUD COUNTIES...HAS BEEN REPLACED BY TORNADO WATCH
NUMBER 125...AND NOW ALSO INCLUDES OTTAWA COUNTY.

SD

Local storm report, Apr 11, 1:29 AM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
129 AM CDT WED APR 11 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....
q
0128 AM    SCANDIA                   KS    65 MPH TSTM GUST
04/11/01   REPUBLIC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 1:07 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	38 min
Apr 11, 1:41 AM CDT	Tornado Warning	TOP	Republic, Washington	34 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.