Alert archive / Colorado / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 34, NWS Grand Junction, CO
NWS Grand Junction, CO issued this severe thunderstorm warning at Aug 22, 2000, 2:48 PM MDT for Mesa County, Colorado. It was in force for 42 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
- Aug 22, 2000, 2:48 PM MDT (20:48 UTC)
- Expired
- Aug 22, 2000, 3:30 PM MDT
- In force
- 42 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 20:48 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
Grand Junction, CO (KGJT), launched 12:00Z, 8.8 hours before the alert went out and 13 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
- 22 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 1789 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 22, 1:48 PM MDT, 1 hour earlier.
Area forecast discussion, Aug 22, 1:48 PM MDT, 1 hour before
WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 148 PM MDT TUE AUG 22 2000 MODELS FAIRLY CONSISTENT IN KEEPING THINGS FAIRLY PERSISTENT. MONSOON PLUME PROGGED TO REMAIN OVER THE ENTIRE CWA THRU THURSDAY AND THE EXTENDED PERIOD. WEAK VORT MAXES TO CONTINUE TO RIDE THE SWLY FLOW ON THE WEST SIDE OF THE DOMINATING MIDWEST RIDGE...WITH MOST SIGNIFICANT ONE PROJECTED OVER NW CO/NR UT WED EVNG BY AVN. ONLY SIGNIFICANT CHANGE IS THE LOSS OF JET DYNAMICS AS R/R QUAD OF JET INFLUENCING THIS MORNINGS AND AFTERNOONS TSTMS OVER NW CO/NE UT EXITS TO WYOMING WITH NO REPLACEMENT IN SITE. MODELS WNAT TO RETROGRATD HIGH CENTR OVER CO BY THUR MORNING...ESPECIALLY THE ETA. ETA SHOVES MOISTURE PLUEN WEST OVER UT BY THEN...BUT AVN DOESNT MOVE THE MOISTURE PLUME AND PCPN MUCH AT ALL AND CANT FIND ANY STRONG INDICATIONS ON WV SATELLITE OF THE MONSOON LEAVING ANY TIME SOON. AND EASTERLY PUSH OVER S TX LOOKS TO GETTING TURNED WELL TO THE NORTH OVER NM. SO WILL STAY WITH THE WETTER AVN SOLN. NO CHANGES IN THE EXTENDED EITHER AS RIDGE CENTER SHOWN TO SLIDE BACK TO THE SOUTHEAST WITH MONSOON MOISTURE PAINTING THE CWA EACH DAY. CUOCO .GJT...NONE.
The office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 2:19 PM MDT | Severe Thunderstorm Warning | GJT | Hinsdale | 41 min |
| Aug 22, 4:09 PM MDT | Severe Thunderstorm Warning | GJT | Eagle, Garfield, Pitkin | 51 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2000Every severe thunderstorm warning in 2000
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.