Alert archive / Colorado / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 142, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Jul 17, 2009, 6:35 PM MDT for Yuma County, Colorado. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 17, 2009, 6:35 PM MDT (00:35 UTC)
- Expired
- Jul 17, 2009, 7:30 PM MDT
- In force
- 55 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
County Yuma County, CO
The radar
The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 00:35 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 17, 12:59 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.6 hours before the alert went out and 70 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3559 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 5:45 PM MDT, 50 minutes earlier.
Area forecast discussion, Jul 17, 5:45 PM MDT, 50 minutes before
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</html>Hazardous weather outlook, Jul 17, 10:40 AM MDT, 7 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 1040 AM MDT FRI JUL 17 2009 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-181500- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 1040 AM MDT FRI JUL 17 2009 /1140 AM CDT FRI JUL 17 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS THUNDERSTORMS WILL BE POSSIBLE THROUGH THE AFTERNOON HOURS. SOME THUNDERSTORMS MAY BE SEVERE...WITH LARGE HAIL AND DAMAGING WINDS THE PRIMARY THREATS. THUNDERSTORMS ARE EXPECTED TO REDEVELOP AFTER MIDNIGHT TONIGHT...PRIMARILY IN WESTERN AREAS. LARGE HAIL MAY ACCOMPANY ANY THUNDERSTORM TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS CHANCES WILL CONTINUE SATURDAY THROUGH THURSDAY. THE BEST CHANCES FOR THUNDERSTORMS WILL OCCUR SATURDAY MORNING AND AGAIN ON MONDAY...AND A FEW OF THOSE MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS. OTHERWISE...STORMS WILL BE WIDELY SCATTERED AND OCCUR MAINLY IN THE AFTERNOON AND EVENING HOURS...WITH THE PRIMARY HAZARD BEING LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND TONIGHT. 024
In the hours before
Local storm report, Jul 17, 4:38 PM MDT, 1 hour 57 minutes before
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</html>Local storm report, Jul 17, 4:45 PM MDT, 1 hour 50 minutes before
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</html>Local storm report, Jul 17, 4:48 PM MDT, 1 hour 47 minutes before
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</html>Local storm report, Jul 17, 4:50 PM MDT, 1 hour 45 minutes before
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</html>Local storm report, Jul 17, 5:39 PM MDT, 56 minutes before
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</html>Local storm report, Jul 17, 5:51 PM MDT, 44 minutes before
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</html>The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:45 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 27 min |
| Jul 17, 6:22 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 24 min |
| Jul 18, 5:16 AM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 45 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2009Every severe thunderstorm warning in 2009
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.