Alert archive / Colorado / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 45, NWS Grand Junction, CO
NWS Grand Junction, CO issued this severe thunderstorm warning at Oct 19, 2015, 10:15 PM MDT for Mesa County, Colorado. It was in force for 10 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
- Oct 19, 2015, 10:15 PM MDT (04:15 UTC)
- Expired
- Oct 19, 2015, 10:25 PM MDT
- In force
- 10 min
- Issued by
- NWS Grand Junction, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Mesa County, CO
The radar
The Grand Junction radar (KGJX), 22 km from the middle of the area, began a volume at 04:17 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 Grand Junction, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 19, 4:05 PM MDT, 6 hours 10 minutes earlier.
Area forecast discussion, Oct 19, 4:05 PM MDT, 6 hours 10 minutes before
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</html>Hazardous weather outlook, Oct 19, 4:35 AM MDT, 17 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 435 AM MDT MON OCT 19 2015 COZ001>014-017>023-UTZ022>025-027>029-201200- LOWER YAMPA RIVER BASIN-CENTRAL YAMPA RIVER BASIN- ROAN AND TAVAPUTS PLATEAUS-ELKHEAD AND PARK MOUNTAINS- UPPER YAMPA RIVER BASIN-GRAND VALLEY-DEBEQUE TO SILT CORRIDOR- CENTRAL COLORADO RIVER BASIN-GRAND AND BATTLEMENT MESAS- GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS- CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN- WEST ELK AND SAWATCH MOUNTAINS-FLATTOPS- UPPER GUNNISON RIVER VALLEY-UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE- NORTHWEST SAN JUAN MOUNTAINS-SOUTHWEST SAN JUAN MOUNTAINS- PARADOX VALLEY/LOWER DOLORES RIVER- FOUR CORNERS/UPPER DOLORES RIVER-ANIMAS RIVER BASIN- SAN JUAN RIVER BASIN-SOUTHEAST UTAH-EASTERN UINTA MOUNTAINS- EASTERN UINTA BASIN-TAVAPUTS PLATEAU-ARCHES/GRAND FLAT- LA SAL AND ABAJO MOUNTAINS-CANYONLANDS/NATURAL BRIDGES- 435 AM MDT MON OCT 19 2015 ...FLASH FLOOD WATCH FOR SOUTHEAST UTAH AND THE VALLEYS OF SOUTHWEST COLORADO THROUGH THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. .DAY ONE...TODAY AND TONIGHT THERE IS A MARGINAL RISK FOR SEVERE THUNDERSTORMS OVER EAST CENTRAL AND SOUTHEAST UTAH AND WEST CENTRAL COLORADO TODAY. GUSTY OUTFLOW WINDS TO NEAR 58 MPH AND HAIL UP TO ONE INCH IN DIAMETER WILL BE POSSIBLE WITH THE STRONGEST THUNDERSTORMS. HEAVY RAIN IS ALSO EXPECTED WITH THE STRONGEST STORMS LEADING TO THE POTENTIAL FOR FLASH FLOODING OVER SOUTHEAST UTAH AND THE LOWER VALLEYS OF SOUTHWEST COLORADO. THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS WILL DIMINISH LATE THIS AFTERNOON AND OVERNIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY PERIODIC SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE REGION THROUGH SUNDAY. SNOW LEVELS WILL VARY BETWEEN 9500 AND 12000 FEET WITH LIGHT ACCUMULATIONS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Local storm report, Oct 19, 4:59 PM MDT, 5 hours 16 minutes before
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</html>Local storm report, Oct 19, 5:20 PM MDT, 4 hours 55 minutes before
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</html>Local storm report, Oct 19, 5:21 PM MDT, 4 hours 54 minutes before
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</html>Local storm report, Oct 19, 5:53 PM MDT, 4 hours 22 minutes before
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</html>The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 8:03 PM MDT | Severe Thunderstorm Warning | GJT | Archuleta, La Plata | 57 min |
| Oct 19, 10:10 PM MDT | Special Weather Statement | GJT | Mesa | 35 min |
| Oct 19, 10:49 PM MDT | Special Weather Statement | GJT | Garfield | 26 min |
| Oct 19, 11:15 PM MDT | Special Weather Statement | GJT | Garfield | 30 min |
| Oct 20, 12:45 AM MDT | Special Weather Statement | GJT | 30 min | |
| Oct 20, 6:37 AM MDT | Special Weather Statement | GJT | 38 min | |
| Oct 20, 7:20 AM MDT | Special Weather Statement | GJT | La Plata | 40 min |
| Oct 20, 8:53 AM MDT | Special Weather Statement | GJT | San Juan | 37 min |
| Oct 20, 1:56 PM MDT | Winter Weather Advisory | GJT | Archuleta, Delta, Dolores, Gunnison, Hinsdale, La Plata and 5 more | 18 hr |
| Oct 20, 4:38 PM MDT | Special Weather Statement | GJT | Montezuma | 37 min |
| Oct 19, 9:04 PM MDT | Areal Flood Advisory | GJT | Grand | 6 hr |
| Oct 20, 12:18 AM MDT | Special Weather Statement | GJT | Grand | 27 min |
| Oct 20, 1:05 AM MDT | Special Weather Statement | GJT | Grand | 40 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2015Every severe thunderstorm warning in 2015
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.