Alert archive / Kansas / Special Weather Statements in 2011
Special Weather Statement, NWS Topeka, KS
NWS Topeka, KS issued this special weather statement at Jul 5, 2011, 8:21 PM CDT for Riley County, Kansas. It was in force for 24 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 5, 2011, 8:21 PM CDT (01:21 UTC)
- Expired
- Jul 5, 2011, 8:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Topeka, KS
County Riley County, KS
The radar
The Topeka radar (KTWX), 62 km from the middle of the area, began a volume at 01:24 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, 1.4 hours before the alert went out and 98 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
- 1259 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 1708 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
721 WWUS83 KTOP 060121 SPSTOP SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 821 PM CDT TUE JUL 5 2011 KSZ010-022-023-060145- MARSHALL-POTTAWATOMIE-RILEY- 821 PM CDT TUE JUL 5 2011 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL RILEY... NORTHWESTERN POTTAWATOMIE AND SOUTHWESTERN MARSHALL COUNTIES... THROUGH 845 PM CDT...A STRONG THUNDERSTORM WILL MOVE SOUTH AT 30 MPH ACROSS PORTIONS OF NORTH CENTRAL RILEY...NORTHWESTERN POTTAWATOMIE AND SOUTHWESTERN MARSHALL COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING PENNY SIZE HAIL AND STRONG WINDS OF 40 TO 50 MPH. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE RANDOLPH...OLSBURG AND TUTTLE CREEK LAKE. A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT. && LAT...LON 3942 9642 3926 9675 3961 9681 3967 9656 TIME...MOT...LOC 0121Z 347DEG 28KT 3954 9668 $$
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 7:05 PM CDT | Severe Thunderstorm Warning | TOP | Marshall, Nemaha, Washington | 40 min |
| Jul 5, 7:41 PM CDT | Severe Thunderstorm Warning | TOP | Marshall, Nemaha, Pottawatomie, Riley, Washington | 34 min |
| Jul 5, 7:54 PM CDT | Severe Thunderstorm Warning | TOP | Republic, Washington | 36 min |
| Jul 5, 8:04 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Nemaha | 41 min |
| Jul 5, 8:41 PM CDT | Special Weather Statement | TOP | Washington | 34 min |
| Jul 5, 9:05 PM CDT | Special Weather Statement | TOP | Dickinson, Morris, Wabaunsee | 40 min |
| Jul 5, 9:59 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson | 38 min |
| Jul 6, 4:37 AM CDT | Special Weather Statement | TOP | Osage | 23 min |
Nearby
Special Weather Statements in Kansas, 2011Every special weather statement in 2011
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.