Alert archive / Kansas / Special Weather Statements in 2012
Special Weather Statement, NWS Topeka, KS
NWS Topeka, KS issued this special weather statement at Jun 30, 2012, 9:20 PM CDT for 6 counties in Kansas. It was in force for 40 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
- Jun 30, 2012, 9:20 PM CDT (02:20 UTC)
- Expired
- Jun 30, 2012, 10:00 PM CDT
- In force
- 40 min
- Issued by
- NWS Topeka, KS
Counties Coffey County, KS, Douglas County, KS, Franklin County, KS, Jefferson County, KS, Lyon County, KS, Osage County, KS
The radar
The Topeka radar (KTWX), 72 km from the middle of the area, began a volume at 02:21 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, 2.3 hours before the alert went out and 30 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.
- Mixed-layer CAPE
- 2504 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 2499 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Jun 30, 6:44 PM CDT, 2 hours 36 minutes earlier.
Area forecast discussion, Jun 30, 6:44 PM CDT, 2 hours 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 644 PM CDT SAT JUN 30 2012 ...UPDATE TO AVIATION... .DISCUSSION... THE HEAT WAVE CONTINUES AS TRIPLE DIGIT HEAT CONTINUES ACROSS MUCH OF THE COUNTY WARNING AREA. ONCE AGAIN THE AXIS OF THE WARMFRONT LIES ALONG THE KS/NEBRASKA BORDER...WHERE TEMPERATURES ARE RUNNING IN THE 90S STILL AT THIS HOUR. CONVECTION AHEAD OF A WEAK WAVE MOVING ALONG THE FRONT AND EAST NE ATTM. SHORTWAVE TROF OVER CTRL KS CONTINUES TO MOVE EASTWARD IN THE EVENING HOURS. SOUNDINGS ARE QUITE DRY BELOW 10000FT SO WOULD EXPECT THREAT FROM ANY STORM THAT MOVES INTO THE AREA TO BE DOWNDRAFT WINDS. DO THINK STORMS WILL STRUGGLE SOMEWHAT WITH LACK OF MOISTURE AND DRY AIR...BUT MCS PROPAGATION PARAMETER WOULD SUGGEST A CHANCE THESE STORMS WILL KEEP MOVING EASTWARD ACROSS THE NORTHERN COUNTIES AND WILL KEEP POPS THIS EVENING AND OVERNIGHT TO THE NORTH. OVERNIGHT LOWS MAY BE LOCALLY IMPACTED BY OUTFLOWS BUT OVERALL EXPECT LOWS AGAIN IN THE 70S. TUTT LOW OVER SOUTH TEXAS CONTINUES TO DEVELOP CONVECTION ALONG ITS EASTERN FLANK...AND ADVECTS COOLER MID LEVEL TEMPERATURES OVER THE FORECAST AREA ON SUNDAY. WILL THEREFORE CARRY TEMPERATURES MAINLY IN THE UPPER 90S FOR MOST OF THE AREA. AFTERNOON SURFACE WINDS PROGGED TO BE A BIT STRONGER THAN TODAY AS WARM FRONT LIFTS NORTHWARD SO MAY HAVE SOME GUSTY WINDS IN THE AFTERNOON AND WILL CONTINUE TO PROMOTE HIGH TO VERY HIGH FIRE DANGER. 67 EXTENDED...MONDAY THROUGH SATURDAY: RELENTLESS HOT WEATHER WILL CONTINUE WITH VERY LITTLE CHANGE TO OUR OVERALL WEATHER PATTERN. THE UPPER RIDGE WILL BUILD AND CENTER OVER OF THE REGION THROUGH THE PERIOD...WITH A GRADUAL INCREASE/EXPANSE IN THE POOL OF WARM TEMPERATURES WITHIN THE PBL. THE ONLY EXCEPTION MAY BE A SLIGHT INCREASE IN CLOUD COVER ON MONDAY ACROSS EAST CENTRAL SECTIONS AS THE REMNANTS OF A TROPICAL LOW CURRENTLY NEAR THE TEXAS GULF COAST SKIRTS PORTIONS OF SE KS. ANY PRECIPITATION WITH THIS FEATURE IS EXPECTED TO REMAIN SOUTH OF THE CWA. IN SUMMARY...LITTLE APPRECIABLE CHANCES FOR RAINFALL EXIST IN THE EXTENDED...WITH AFTERNOON MAXIMUM TEMPERATURES 96-103 AND LOW TEMPERATURES IN THE MIDDLE-UPPER 70S. BLAIR && .AVIATION... COMPLICATING THE FORECAST IS ISOLATED THUNDERSTORM DEVELOPMENT THIS EVENING WHICH COULD AFFECT KMHK AS OUTFLOW BOUNDARY MOVES INTO THE AREA. OTHERWISE...MAIN CONCERN IS WHETHER CLUSTER OF STORMS OVER NC KS CAN MAKE IT AS FAR EAST AS KFOE AND KTOP. RIGHT NOW...AM THINKING STORMS WILL DISSIPATE BEFORE REACHING THIS AREA BUT NOT CERTAIN. AFTER ABOUT 08Z...WOULD EXPECT ALL CHANCES TO END AT TAF SITES...AND VFR CONDITIONS THROUGH SUNDAY. && .TOP WATCHES/WARNINGS/ADVISORIES... NONE. &&
Hazardous weather outlook, Jun 30, 9:13 PM CDT, 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 913 PM CDT SAT JUN 30 2012 KSZ008>012-020>024-026-034>040-054>056-058-059-020215- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 913 PM CDT SAT JUN 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...TONIGHT. ISOLATED THUNDERSTORMS ACROSS PORTIONS OF NORTH CENTRAL...NORTHEAST AND EAST CENTRAL KS COULD PRODUCE STRONG WINDS OF 40 TO 50 MPH UNTIL MIDNIGHT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE RANGELAND FIRE DANGER WILL BE VERY HIGH ONCE AGAIN ACROSS PORTIONS OF NORTH CENTRAL KANSAS ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY NOT BE NEEDED TONIGHT.
In the hours before
Local storm report, Jun 30, 8:05 PM CDT, 1 hour 15 minutes before
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</html>Special weather statement, Jun 30, 8:05 PM CDT, 1 hour 15 minutes before
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</html>Local storm report, Jun 30, 8:24 PM CDT, 56 minutes before
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</html>Local storm report, Jun 30, 8:34 PM CDT, 46 minutes before
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</html>Local storm report, Jun 30, 8:38 PM CDT, 42 minutes before
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</html>Special weather statement, Jun 30, 9:20 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 7:05 PM CDT | Special Weather Statement | TOP | Clay | 40 min |
| Jun 30, 7:20 PM CDT | Severe Thunderstorm Warning | TOP | Marshall, Nemaha | 40 min |
| Jun 30, 8:05 PM CDT | Special Weather Statement | TOP | Nemaha, Pottawatomie | 40 min |
| Jun 30, 8:15 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Jackson, Pottawatomie, Riley, Wabaunsee | 45 min |
| Jun 30, 8:26 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Lyon, Osage, Pottawatomie, Shawnee, Wabaunsee | 49 min |
| Jun 30, 9:31 PM CDT | Special Weather Statement | TOP | Brown | 29 min |
| Jun 30, 10:07 PM CDT | Special Weather Statement | TOP | Clay | 23 min |
| Jun 30, 10:27 PM CDT | Special Weather Statement | TOP | Clay | 33 min |
| Jul 1, 12:41 AM CDT | Special Weather Statement | TOP | Cloud | 34 min |
Nearby
Special Weather Statements in Kansas, 2012Every 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.