Alert archive / Nebraska / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 258, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 26, 2019, 5:08 PM MDT for Cheyenne County, Nebraska. It was in force for 37 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 26, 2019, 5:08 PM MDT (23:08 UTC)
- Expired
- Jul 26, 2019, 5:45 PM MDT
- In force
- 37 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Cheyenne County, NE
The radar
The Cheyenne radar (KCYS), 152 km from the middle of the area, began a volume at 23:08 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.
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 Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 2:22 PM MDT, 2 hours 46 minutes earlier.
Area forecast discussion, Jul 26, 2:22 PM MDT, 2 hours 46 minutes before
Area Forecast Discussion National Weather Service Cheyenne WY 222 PM MDT Fri Jul 26 2019 .SHORT TERM...(This evening through Saturday night) Issued at 222 PM MDT Fri Jul 26 2019 Fairly quiet so far this afternoon with convection firing mostly just south and east of the CWA. Outflow boundary along the se Wy/Co border has set off a few storms but they are tending to die out after the boundary passes. best chance for convection still looks to be around the mtns and close to the Co border into this evening though noting some Cu formation along the Pine Ridge. Should see more widespread convection over the CWA Sat afternoon and evening as a decent shortwave passes across and interacts with a sfc boundary along the mtns. A few stronger storms possible given instability and some shear. Activity may continue into the night as the wave moves into the Neb Panhandle. Otherwise a bit cooler over the plains Saturday as a weak surface high settles over the northern plains. .LONG TERM...(Sunday through Friday) Issued at 222 PM MDT Fri Jul 26 2019 Looking like a drier pattern over the CWA Sunday and Monday as an upper high builds over the 4 corners area and warms the mid levels a bit. Monsoonal moisture then makes a return Tuesday onward bringing chances for mainly aftn/evng showers and storms back to the area the rest of the week. temperatures remaining seasonably warm. && .AVIATION...(For the 18Z TAFS through 18Z Saturday afternoon) Issued at 1140 AM MDT Fri Jul 26 2019 The main concern with this portion of the forecast is where the convection will develop this afternoon. Latest surface analysis was showing northerly to northeast flow east of the Laramie Range. This type of flow is not conducive to thunderstorm development at this time. However, the models are trying to show this flow turning more easterly as the afternoon wears on in response to the surface low strengthening. This will may allow for some isolated convection to develop along the Laramie Range late in the day. However, confidence is still rather low at this point. && .FIRE WEATHER... Issued at 222 PM MDT Fri Jul 26 2019 Fire weather concerns should remain low into early next week with min RHs staying above critical levels. There will be sctd to numerous showers and storms most likely Saturday afternoon and evening. Drier conditions are expected Sunday and Monday before chances for rain return Tuesday. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...None. NE...None. && SHORT TERM...RE LONG TERM...RE AVIATION...REC FIRE WEATHER...RE
Hazardous weather outlook, Jul 26, 5:17 AM MDT, 11 hours 51 minutes before
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Special weather statement, Jul 26, 4:11 PM MDT, 57 minutes before
Special Weather Statement National Weather Service Cheyenne WY 411 PM MDT Fri Jul 26 2019 WYZ106-117-262230- Central Laramie Range and Southwest Platte County WY- South Laramie Range Foothills WY- 411 PM MDT Fri Jul 26 2019 ...SPECIAL WEATHER STATEMENT... At 411 PM MDT, Doppler radar was tracking a strong thunderstorm near Horse Creek, or 26 miles northeast of Laramie, moving north at 10 mph. Half inch hail and winds in excess of 30 mph will be possible with this storm. This storm will remain over mainly rural areas of northwestern Laramie County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4141 10504 4146 10521 4160 10519 4155 10493 TIME...MOT...LOC 2211Z 192DEG 7KT 4148 10512 Brothers
Special weather statement, Jul 26, 4:15 PM MDT, 53 minutes before
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Special Weather Statement National Weather Service Cheyenne WY 430 PM MDT Fri Jul 26 2019 WYZ106-117-118-262300- Central Laramie Range and Southwest Platte County WY- Central Laramie County WY-South Laramie Range Foothills WY- 430 PM MDT Fri Jul 26 2019 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LARAMIE COUNTY UNTIL 500 PM MDT... At 429 PM MDT, Doppler radar was tracking a strong thunderstorm near Iron Mountain, or 29 miles northeast of Laramie, moving northeast at 10 mph. Penny size hail and winds in excess of 30 mph will be possible with this storm. This storm will remain over mainly rural areas of northwestern Laramie County. This includes Interstate 25 in Wyoming between mile markers 38 and 41. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4147 10519 4165 10515 4157 10483 4142 10503 TIME...MOT...LOC 2229Z 212DEG 9KT 4151 10509 Brothers
Special weather statement, Jul 26, 4:56 PM MDT, 12 minutes before
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 4:11 PM MDT | Special Weather Statement | CYS | Laramie | 19 min |
| Jul 26, 4:20 PM MDT | Special Weather Statement | CYS | Platte | 25 min |
| Jul 26, 4:30 PM MDT | Special Weather Statement | CYS | Laramie | 30 min |
| Jul 26, 4:49 PM MDT | Areal Flood Advisory | CYS | Laramie | 2 hr |
| Jul 26, 4:56 PM MDT | Special Weather Statement | CYS | Laramie | 34 min |
| Jul 26, 4:59 PM MDT | Special Weather Statement | CYS | Platte | 31 min |
| Jul 26, 5:16 PM MDT | Severe Thunderstorm Warning | CYS | Laramie, Platte | 29 min |
| Jul 26, 5:45 PM MDT | Severe Thunderstorm Warning | CYS | Laramie, Platte | 30 min |
| Jul 26, 4:15 PM MDT | Special Weather Statement | CYS | Cheyenne | 30 min |
| Jul 26, 4:39 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 36 min |
| Jul 26, 5:12 PM MDT | Special Weather Statement | CYS | Cheyenne | 33 min |
| Jul 26, 5:28 PM MDT | Flash Flood Warning | CYS | Cheyenne | 5 hr |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.