Alert archive / Wyoming / Flash Flood Warnings in 1994
Flash Flood Warning 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jul 15, 1994, 2:37 AM MDT for Goshen County, Wyoming. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1994, 2:37 AM MDT (08:37 UTC)
- Expired
- Jul 15, 1994, 5:06 AM MDT
- In force
- 2 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Goshen County, WY
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 8.6 hours before the alert went out and 251 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
- 16 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 2305 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 150841 FFWCYS WYC015-151200- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 237 AM MDT FRI JUL 15 1994 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 600 AM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...CENTRAL AND EAST CENTRAL GOSHEN COUNTY THIS INCLUDES THE CITY OF HUNTLEY AND THE SMALL STREAMS FEEDING INTO THE PLATTE FROM THE SOUTH. THUNDERSTORMS WHICH PRODUCED HEAVY RAIN HAVE MOVED FROM WEST CENTRAL GOSHEN COUNTY TO THE EAST CENTRAL PART OF THE COUNTY DURING THE EARLY MORNING HOURS. AT 330 AM...THE STRONG THUNDERSTORMS PRODICING HEAVY RAIN WERE LOCATED BETWEEN TORRINGTON AND YODER. THESE STORMS WERE MOVING EAST AT 15 MPH. RADAR INDICATED THAT RAINFALL OF UP TO 2 INCHES HAS FALLEN SINCE 200 AM IN THE AREA BETWEEN TORRINGTON AND YODER AND FLASH FLOODING IS QUITE POSSIBLE. BE ESPECIALLY CAUTIOUS AT NIGHT WnHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. WEILAND
What forecasters said that day
The local office's own words before this flash flood 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, Jul 14, 10:57 PM MDT, 3 hours 40 minutes before
WYZ069-070-150530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1056 PM MDT THU JUL 14 1994 ...A STRONG THUNDERSTORM WILL MOVE JUST SOUTH OF PINE BLUFFS JUST JUST AFTER 11 PM... AT 1153 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG THUNDERSTORM 33 MILES EAST OF CHEYENNE ALONG INTERSTATE 80. THIS STORM WAS MOVING NORTHEAST AT 10 MILES AN HOUR...AND WILL PASS JUST SOUTH OF PINE BLUFFS AND INTO THE SOUGHERN NEBRASKvA PANHANDLE BETWEEN 1100 AND 1130 PM. VERY HEAVY RAIN...STRONG GUSTY WINDS...AND SOME SMALL HAIL ARE LIKELY WITH THIS STORM. IF YOUR ARE IN THE PATH OF THIS STORM...MOVE INDOORS UNTIL THE STORM HAS MOVED THROUGH. WCJIN-WYSE SULLIVAN
Special weather statement, Jul 14, 11:02 PM MDT, 3 hours 35 minutes before
WYZ069-070-150530- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CHEYENNE WY 1056 PM MDT THU JUL 14 1994 CORRECTED TIME LN 1 ...A STRONG THUNDERSTORM WILL MOVE JUST SOUTH OF PINE BLUFFS JUST AFTER 11 PM... AT 1053 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG THUNDERSTORM 33 MILES EAST OF CHEYENNE ALONG INTERSTATE 80. THIS STORM WAS MOVING NORTHEAST AT 10 MILES AN HOUR...AND WILL PASS JUST SOUTH OF PINE BLUFFS AND INTO THE SOUGHERN NEBRASKA PANHANDLE BETWEEN 1100 AND 1130 PM. VERY HEAVY RAIN...STRONG GUSTY WINDS...AND SOME SMALL HAIL ARE LIKELY WITH THIS STORM. IF YOUR ARE IN THE PATH OF THIS STORM...MOVE INDOORS UNTIL THE STORM HAS MOVED THROUGH. WCJIN-WYSE JBS
Special weather statement, Jul 14, 11:47 PM MDT, 2 hours 50 minutes before
NEZ001>004-019>022-054>056-150645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 1147 PM MDT THU JUL 14 1994 ...SHOWERS AND THUNDERSTORMS OVER PARTS OF THE NEBRASKA PANHANDLE... AT 1145 PM MDT RADAR SHOWED AN AREA OF SHOWERS AND EMBEDDED HEAVY THUNDERSTORMS OVER THE NORTHERN PART OF THE NEBRASKA PANHANDLE. THE THUNDERSTORMS WERE LOCATED FROM 10 MILES SOUTHWEST OF CHADRON TO NEAR CRAWFORD NEBRASKA...OVER DAWES COUNTY. OTHER THUNDERSHOWERS WERE OVER KIMBALL COUNTY 35 MILES WEST OF SIDNEY NEBRASKA...NEAR THE CITY OF KIMBALL. MOVEMENT OF ALL THE SHOWERS AND THUNDERSTORMS WAS EAST AT 30 MPH. RESIDENTS OF DAWES AND KIMBALL COUNTIES MAY EXPERIENCE BRIEF HEAVY RAIN...G@USTY WIND AND DEADLY LIGHTNING AS THE STORMS MOVE OVER THEIR AREA THROUGH 1245 A.M. MDT. EMANUEL
Special weather statement, Jul 15, 12:48 AM MDT, 1 hour 49 minutes before
WYZ059-060-067-068-150900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1245 AM MDT FRI JUL 15 1994 ...STRONG THUNDERSTORMS CONTINUE OVER EAST CENTRAL WYOMING EARLY FRIDAY MORNING... AT 1235 AM...STRONG THUNDERSTORMS WERE LOCATED 10 MILES NORTH AND NORTHEAST OF WHEATLAND AS WELL AS 20 MILES SOUTHEAST OF DOUGLAS...NEAR GLENDO RESERVOIR. THE STORMS WERE MOVING EAST AT 20 MPH. THE STORMS NEAR WHEATLAND HAVE DEVELOPED RAPDILY SINCE MIDNIGHT. ALL OF THE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...SMALL HAIL...STRONG WIND GUSTS AND DANGEROUS LIGHTNING. SHORTLY AFTER MIDNIGHT...PEA SIZED HAIL WAS NOTED AT ORIN JUNCTION. PEOPLE IN CENTRAL AND NORTHERN PARTS OF PLATTE AND GOSHEN COUNTIES AS WELL AS THE SOUTH PARTS OF CONVERSE AND NIOBRARA COUNTIES WILL BE MOST AFFECTED BY THE THUNDERSTORMS UNTIL 300 AM. SOME CITIES IN THIS AREA INCLUDE...TORRINGTON...GLENDO...LUSK AND LINGLE. THE HEAVY RAIN MAY PRODUCE SMALL STREAMS AND LOW LYING AREA TO RISE. PEOPLE IN EAST CENTRAL WYOMING SHOULD BE AWARE OF THE THUNDERSTORMS EARLY THIS MORNIBG. IF A STORM APPROACHES...THE SAFEST PLACE TO BE IS IN A STURDY BUILDING. DO NOT TRY TO CROSS FLOODED ROADS OR BRIDGES. WCJIN-WYSE-WYNE WEILAND
Special weather statement, Jul 15, 12:54 AM MDT, 1 hour 43 minutes before
NEZ001>004-019>022-054>056-150800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 1253 AM MDT FRI JUL 15 1994 ...THUNDERSTORMS ACROSS THE NEBRASKA PANHANDLE... AT 1252 AM MDT RADAR INDICATED ISOLATED THUNDERSTORMS ACROSS THE PANHANDLE WITH THE STRONGEST STORM LOCATED 10 MILES SOUTHEAST OF CHADRON OR 25 MILES NORTH OF ALLIANCE MOVING EAST AT 25 MPH. RESIDENTS OF CENTRAL SHERIDAN COUNTY OF THE NEBRASKA PANHANDLE MAY EXPERIENCE BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND STRONG WIND UNTIL 200 AM MDT THIS MORNING. EASTLACK
Special weather statement, Jul 15, 1:34 AM MDT, 1 hour 3 minutes before
NEZ001>004-019>022-054>056-150830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 132 AM MDT FRI JUL 15 1994 ...THUNDERSTORMS ACROSS THE WESTERN NEBRASKA PANHANDLE... AT 131 AM MDT RADAR INDICATED AN AREA OF STRONG THUNDERSTORMS ACROSS THE WESTERN PANHANDLE WITH THE STRONGEST STORMS LOCATED 5 MILES SOUTHWEST OF SCOTTSBLUFF AND 45 MILES SOUTHWEST OF CHADRON MOVING EAST AT 20 MPH. RESIDENTS OF SCOTTS BLUFF AND SIOUX COUNTIES OF THE NEBRASKA PANHANDLE MAY EXPERIENCE BRIEF HEAVY RAIN...SMALL HAIL...DEADLY LIGHTNING AND STRONG WIND UNTIL 230 AM MDT THIS MORNING. EASTLACK
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 2:32 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 43 min |
| Jul 15, 2:48 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 42 min |
| Jul 15, 3:05 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 40 min |
| Jul 15, 3:38 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 52 min |
| Jul 15, 4:25 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 35 min |
| Jul 15, 5:04 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 41 min |
| Jul 15, 5:45 PM MDT | Tornado Warning | CYS | Goshen | 30 min |
Nearby
Flash Flood Warnings in Wyoming, 1994Every flash flood warning in 1994
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.