Alert archive / Colorado / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 49, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 23, 1993, 6:17 PM MDT for Logan County, Morgan County, Washington County, Colorado. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 23, 1993, 6:17 PM MDT (00:17 UTC)
- Expired
- Jun 23, 1993, 6:45 PM MDT
- In force
- 28 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Logan County, CO, Morgan County, CO, Washington County, CO
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 0.3 hours before the alert went out and 51 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 10.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 240019
SVRDEN
COC075-087-121-240045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
617 PM MDT WED JUN 23 1993
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES:
IN NORTHEASTERN COLORADO
SOUTHWESTERN LOGAN...NORTHEASTERN MORGAN AND EXTREME NORTH
CENTRAL WASHINGTON
INCLUDING THE FOLLOWING LOCATIONS
ATWOOD...LOGAN CORNERS...MERINO...PREWITT RESERVOIR...
STERLING AND WILLARD
AT 617 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 5 MILES SOUTH OF WILLARD...OR ABOUT 20MILES
SOUTHWEST OF STERLING.
THE STORM WAS MOVING EAST-NORTHEAST AT 20 TO 25 MPH. GOLFBALL TO
BASEBALL SIZE HAIL HAS BEEN REPORTED WITH THIS STORM AS IT MOVED
THROUGH HILLROSE AT 610 PM MDT.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA THROUGH MOST
OF THIS EVENING. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE
OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLA(CE OF SAFETY IN A
STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO
IS SPOTTED.
HEITKAMP
LAT...LON 4043 10311 4037 10354 4055 10357 4075 10325What 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.
In the hours before
Special weather statement, Jun 23, 1:55 PM MDT, 4 hours 22 minutes before
COZ011-012-013-240600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 155 PM MDT WED JUN 23 1993 ...TORNADO WATCH IN EFFECT UNTIL 8 PM MDT... AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR WAS INDICATING AN AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY... MAINLY NORTH OF FORT COLLINS. THESE STORMS WERE MOVING EAST AT 20 TO 30 MPH AND WERE NOT PRODUCING ANY SEVERE WEATHER AT THAT TIME. THE DEVELOPMENT OF MORE THUNDERSTORMS SHOULD CONTINUE INTO THIS AFTERNOON AND INTO THIS EVENING. THE POTENTIAL FOR STORMS THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE HIGH. BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUAL AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER. CONTINUE TO MONITOR NOAA WEATHER RADIO FOR FURTHER UPDATES. HEITKAMP
Special weather statement, Jun 23, 1:59 PM MDT, 4 hours 18 minutes before
COZ011-012-013-240600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 155 PM MDT WED JUN 23 1993 ...TORNADO WATCH IN EFFECT UNTIL 8 PM MDT... AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR WAS INDICATING AN AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY... MAINLY NORTH OF FORT COLLINS. THESE STORMS WERE MOVING EAST AT 20 TO 30 MPH AND WERE NOT PRODUCING ANY SEVERE WEATHER AT THAT TIME. THE DEVELOPMENT OF MORE THUNDERSTORMS SHOULD CONTINUE INTO THIS AFTERNOON AND INTO THIS EVENING. THE POTENTIAL FOR STORMS THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE HIGH. BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUAL AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER. CONTINUE TO MONITOR NOAA WEATHER RADIO FOR FURTHER UPDATES. HEITKAMP
Special weather statement, Jun 23, 2:44 PM MDT, 3 hours 33 minutes before
COZ011-012-013-240000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 245 PM MDT WED JUN 23 1993 ...TORNADO WATCHES COVER ALL OF NORTHEAST COLORADO WELL INTO THIS EVENING... AT 245 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY. THE MAJORITY OF THE ACTIVITY WAS NORTH OF FORT COLLINS. THESE STORMS WERE MOVING EAST-NORTHEAST AT 15 TO 25 MPH. NO REPORTS OF ANY SEVERE WEATHER HAVE BEEN RECEIVED WITH THESE STORMS. CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF MORE THUNDERSTORMS INTO THIS AFTERNOON AND INTO THIS EVENING. THE POTENTIAL FOR STORMS THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE HIGH. BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUALLY AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER. REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF NORTHEAST COLORADO UNTIL 8 PM MDT. WHILE AREAS ALONG THE NORTHEAST BORDER ARE UNDER A TORNADO WATCH UNTIL 10 PM MDT. HEITKAMP
Special weather statement, Jun 23, 2:45 PM MDT, 3 hours 32 minutes before
COZ011-012-013-240000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 245 PM MDT WED JUN 23 1993 ...TORNADO WATCHES COVER ALL OF NORTHEAST COLORADO WELL INTO THIS EVENING... AT 245 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY. THE MAJORITY OF THE ACTIVITY WAS NORTH OF FORT COLLINS. THESE STORMS WERE MOVING EAST-NORTHEAST AT 15 TO 25 MPH. NO REPORTS OF ANY SEVERE WEATHER HAVE BEEN RECEIVED WITH THESE STORMS. CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF MORE THUNDERSTORMS INTO THIS AFTERNOON AND INTO THIS EVENING. THE POTENTIAL FOR STORMS THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE HIGH. BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUALLY AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER. REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF NORTHEAST COLORADO UNTIL 8 PM MDT. WHILE AREAS ALONG THE NORTHEAST BORDER ARE UNDER A TORNADO WATCH UNTIL 10 PM MDT. HEITKAMP
Special weather statement, Jun 23, 3:37 PM MDT, 2 hours 40 minutes before
COZ012-232200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 337 PM MDT WED JUN 23 1993 ...STRONG THUNDERSTORM IN NORTHEAST WELD COUNTY... AT 337 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 20 MILES WEST OF WESTPLAINS...OR ABOUT 40 MILES NORTHWEST OF STERLING. THIS STORM WAS MOVING TO THE EAST-NORTHEAST AT 15 TO 20 MPH AND WILL BE IN NORTHWEST LOGAN COUNTY BY 4 PM MDT. THIS STORM IS CAPABLE OF PRODUCING BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL HAIL. IF YOU LIVE NEAR WESTPLAINS OR ELSEWHERE IN NORTHEAST WELD OR NORTHWEST LOGAN COUNTIES...BE ON THE LOOKOUT FOR THIS STORM. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES. REMEMBER TORNADO WATCHES ARE IN EFFECT FOR ALL OF NORTHEAST COLORADO WELL INTO THIS EVENING. HEITKAMP
Special weather statement, Jun 23, 3:39 PM MDT, 2 hours 38 minutes before
COZ012-232200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 337 PM MDT WED JUN 23 1993 ...STRONG THUNDERSTORM IN NORTHEAST WELD COUNTY... AT 337 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 20 MILES WEST OF WESTPLAINS...OR ABOUT 40 MILES NORTHWEST OF STERLING. THIS STORM WAS MOVING TO THE EAST-NORTHEAST AT 15 TO 20 MPH AND WILL BE IN NORTHWEST LOGAN COUNTY BY 4 PM MDT. THIS STORM IS CAPABLE OF PRODUCING BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL HAIL. IF YOU LIVE NEAR WESTPLAINS OR ELSEWHERE IN NORTHEAST WELD OR NORTHWEST LOGAN COUNTIES...BE ON THE LOOKOUT FOR THIS STORM. CONTINUE TO MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER UPDATES. REMEMBER TORNADO WATCHES ARE IN EFFECT FOR ALL OF NORTHEAST COLORADO WELL INTO THIS EVENING. HEITKAMP
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 6:15 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 30 min |
| Jun 23, 6:50 PM MDT | Tornado Warning | BOU | Washington | 25 min |
| Jun 23, 6:53 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Yuma | 37 min |
| Jun 23, 6:53 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 37 min |
| Jun 23, 7:20 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 40 min |
| Jun 23, 7:31 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 29 min |
| Jun 23, 8:03 PM MDT | Severe Thunderstorm Warning | BOU | Yuma | 27 min |
| Jun 23, 8:53 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 37 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1993Every severe thunderstorm warning in 1993
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.