Alert archive / Colorado / Tornado Watches in 1998
Tornado Watch 435
The Storm Prediction Center issued this tornado watch at May 26, 1998, 2:45 PM MDT for 20 counties in Colorado. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 26, 1998, 2:45 PM MDT (20:45 UTC)
- Expired
- May 26, 1998, 8:00 PM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Washington County, CO, Weld County, CO, Yuma County, CO
The radar
The Denver radar (KFTG), 120 km from the middle of the area, began a volume at 20:45 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.
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 3:37 PM MDT | Severe Thunderstorm Warning | PUB | El Paso | 63 min |
| May 26, 4:30 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 35 min |
| May 26, 4:58 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Washington | 32 min |
| May 26, 5:03 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 3 hr |
| May 26, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 40 min |
| May 26, 5:58 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 57 min |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 47 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1671 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
144 WWUS9 KMKC 262012 SEL5 MKC WW 262012 COZ000-270200- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 435 STORM PREDICTION CENTER NORMAN OK 212 PM MDT TUE MAY 26 1998 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF EASTERN COLORADO EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 245 PM UNTIL 800 PM MDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH NORTHWEST OF AKRON COLORADO TO 70 MILES SOUTH SOUTHWEST OF LAMAR COLORADO. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 430...WW 431...WW 432...WW 433...WW 434... DISCUSSION... AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25025. ...HALES 405,1022 370,1020 370,1042 405,1045
Nearby
Tornado Watches in Colorado, 1998Every tornado watch in 1998
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.