Alert archive / Colorado / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 29, NWS Grand Junction, CO
NWS Grand Junction, CO issued this severe thunderstorm warning at Sep 17, 2001, 3:16 PM MDT for Mesa County, Colorado. It was in force for 44 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 17, 2001, 3:16 PM MDT (21:16 UTC)
- Expired
- Sep 17, 2001, 4:00 PM MDT
- In force
- 44 min
- Issued by
- NWS Grand Junction, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Mesa County, CO
The radar
The Grand Junction radar (KGJX), 22 km from the middle of the area, began a volume at 21:18 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 17, 3:45 PM MDT | Hail 1 | Palisade, CO | |
| Sep 17, 3:45 PM MDT | Hail 0.75 | Palisade, CO | |
| Sep 17, 4:10 PM MDT | Hail 0.75 | Mesa, CO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Sep 17, 2:45 PM MDT, 31 minutes earlier.
Area forecast discussion, Sep 17, 2:45 PM MDT, 31 minutes before
WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 245 PM MDT MON SEP 17 2001 FORECASTS ON TRACK WITH MINOR CHANGES OR TWEAKS NEEDED FOR THE AFTERNOON ZONE PACKAGE. TROUGH AXIS SITUATED ON THE BORDER OF UTAH AND COLORADO EARLY AFTERNOON WITH STRONG CONVECTION OVER PARTS OF NORTHWEST COLORADO. ONE REPORT OF THREE QUARTERS INCH HAIL AT RIFLE FALLS STATE PARK. EXPECT SECONDARY BUT WEAK VORTICITY MAXIMA MOVING ACROSS THE NORTHERN ZONES TONIGHT. THIS MAY KEEP SOME SHOWERS AND THUNDER LASTING THROUGH THE NIGHT.. BUT THE OVERALL TREND WILL BE DECREASING ACTIVITY OVERNIGHT. WARMING ALOFT BEHIND TROUGH AXIS WILL PLACE A CAP ON ANY MOISTURE TRAPPED UNDERNEATH SUBSIDENCE INVERSION TUESDAY AFTERNOON. ANY THUNDER ON TUESDAY WILL BE LIMITED TO THE EASTERN FRINGE OF FORECAST AREA.. OTHERWISE CLEARING FROM THE WEST WILL OCCUR DURING THE DAY AS DRY WEST NORTHWEST FLOW DEVELOPS. THIS PATTERN HOLDS INTO THE EXTENDED PERIOD WITH TEMPERATURES REBOUNDING TO AROUND SEASONAL VALUES. FRISBIE IN THE EXTENDED... FLAT RIDGE TRANSITIONS TO A SOMEWHAT WEAK ZONAL PATTERN BY SATURDAY WITH A SLIGHT INCREASE IN MOISTURE ACROSS THE MOUNTAINS OF WESTERN COLORADO. WITH NOTHING ORGANIZED...WILL WAIT TO SEE IF NEXT MODEL RUN KEEPS THE SAME TREND BEFORE INTRODUCING MOUNTAIN SHOWERS INTO THE FORECAST FOR THIS WEEKEND. BROADER RIDGE PATTERN DEVELOPS OVER THE WESTERN US BY MONDAY. WILL CONTINUE DRY FORECAST THROUGH MONDAY... TEMPS LOOK GOOD. MPM .GJT...NONE.
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 1:11 PM MDT | Severe Thunderstorm Warning | GJT | Garfield, Rio Blanco | 49 min |
| Sep 17, 1:58 PM MDT | Severe Thunderstorm Warning | GJT | Garfield | 47 min |
| Sep 17, 2:59 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 46 min |
| Sep 17, 3:59 PM MDT | Severe Thunderstorm Warning | GJT | Mesa | 46 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; radar from the NEXRAD Level II archive.