Alert archive / Montana / Flash Flood Warnings in 2004
Flash Flood Warning 5, NWS Glasgow, MT
NWS Glasgow, MT issued this flash flood warning at Jul 7, 2004, 7:35 PM MDT for Roosevelt County, Montana. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2004, 7:35 PM MDT (01:35 UTC)
- Expired
- Jul 8, 2004, 1:30 AM MDT
- In force
- 6 hr
- Issued by
- NWS Glasgow, MT
- Area
- Counties, with a storm outline in the text
County Roosevelt County, MT
The radar
The Glasgow radar (KGGW), 172 km from the middle of the area, began a volume at 01:37 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.6 hours before the alert went out and 171 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
- 62 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 1764 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KGGW 080136 FFWGGW MTC085-080730- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE GLASGOW MT 735 PM MDT WED JUL 7 2004 THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A * FLASH FLOOD WARNING FOR... EASTERN ROOSEVELT COUNTY IN NORTHEAST MONTANA * UNTIL 130 AM MDT * AT 733 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL NEAR BAINVILLE...OR ABOUT 13 MILES EAST OF CULBERTSON...MOVING SOUTHEAST AT 5 MPH. * SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...BAINVILLE RADAR ESTIMATED UP TO 4 INCHES OF RAINFALL ALONG HIGHWAY 2 BETWEEN CULBERTSON AND BAINVILLE SINCE 5 PM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 4834 10441 4813 10445 4803 10408 4835 10414 $$ 79
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.
NWS Glasgow, MT wrote its last area forecast discussion before this flash flood warning went out at Jul 7, 2:30 PM MDT, 5 hours 5 minutes earlier.
Area forecast discussion, Jul 7, 2:30 PM MDT, 5 hours 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 230 PM MDT WED JUL 7 2004 .SHORT TERM...FOR NORTHEAST MONTANA...TONIGHT THROUGH FRIDAY... FORECAST PATTERN STILL SHAPING UP AS EXPECTED THROUGH THE SHORT TERM PERIOD AS AN UPPER LEVEL LOW CONTINUES TO APPROACH NORTHEAST MONTANA. ASSOCIATED SURFACE TROUGH LYING ALONG WESTERN EDGE OF FORECAST AREA. COLD FRONT STILL SCHEDULED TO PASS ON THROUGH YET THIS EVENING IN GGW...AND LATER TONIGHT IN THE SOUTHEAST. SPECIAL 18Z GGW SOUNDING NOT SHOWING THE GREATEST POTENTIAL FOR SEVERE WEATHER...BUT WITH MORE TIME FOR ADDITIONAL HEATING TODAY...STILL POSES A THREAT. SATELLITE ESTIMATED LIFTED INDEX CONTINUES TO DROP WHILE PRECIPITABLE WATER VALUES AND CAPE INCREASES. BEST CONVERGENCE SEEN IN THE EAST...AND WESTERN EDGE OF THE FORECAST AREA NOT AS UNSTABLE SO SEVERE THREAT LESS THERE. AT ANY RATE...WILL LEAVE A MENTION OF POSSIBLE SEVERE STORMS THROUGH THE EVENING HOURS. LARGE HAIL...DAMAGING WINDS...AND HEAVY RAIN STILL A POSSIBILITY. LATER TONIGHT...STRONG SUBSIDENCE BEHIND SYSTEM SHOULD ALLOW THINGS TO CLEAR OUT RATHER QUICKLY. HAVE TAPERED POPS AND ADJUSTED FORECAST ACCORDINGLY. BY FRIDAY...SYSTEM BECOMES STACKED AND REMAINS CENTERED IN CENTRAL SASKATCHEWAN. COOLER AIR CONTINUES TO WORK IN AND TEMPERATURES WILL REMAIN BELOW AVERAGE IN THE 70S. FOR FRIDAY...WARMER AIR BEGINS TO WORK BACK IN AS SYSTEM BEGINS TO SLOWLY SHIFT EAST AND LIFT NORTH. MODELS HINTING THAT ANOTHER SHORTWAVE MAY RESULT IN INCREASED INSTABILITY IN THE SOUTHEAST CORNER EARLY FRIDAY MORNING THROUGH AFTERNOON AND LEFT SOME LOW POPS TO COVER THIS. MODELS HAVE SHIFTED IT EAST...BUT RELUCTANT TO REMOVE POPS COMPLETELY. JAZ ..LONG TERM...FRIDAY NIGHT THRU WEDNESDAY... THE UPPER AIR TRANSITIONS INTO A PATTERN THAT IS VERY TYPICAL OF MID-SUMMER AND USUALLY DOES TAKE PLACE THIS TIME OF YEAR. MODELS SHOW THIS WEEKS UPPER LOW WILL SPLIT WITH ONE PART MOVING EAST OUT OF THE AREA ACROSS SOUTHERN CANADA...THE OTHER PART BECOMES STATIONARY AND WEAKENING ALONG THE OREGON COAST. THIS PUTS NE MT IN A SW FLOW ALOFT...BUT WITH BUILDING 500 MB HEIGHTS. THERE WILL BE WEAK SHORTWAVES AT LEAST...BUT IN THIS PATTERN AND TIME PERIOD PREFER TO GO WITH A BROADBRUSH PATTERN OF ISOLATED THUNDERSTORMS EACH DAY. EVENTUALLY...THE LOW ON THE OREGON COAST WEAKENS AND FILLS AND IS REPLACED BY A DEEPER LOW FURTHER OFFSHORE. THIS ALLOWS THE FLOW ALOFT TO TURN A LITTLE MORE WESTERLY LATE IN THE PERIOD AS A LARGE SPRAWLING UPPER HIGH OVER THE SOUTHERN PART OF THE COUNTRY EXPANDS WEST AND NORTH. MODELS ARE ALL QUITE CONSISTENT RUN TO RUN AND WITH EACH OTHER WITH THESE IDEAS. THIS REDUCES THE THREAT OF THUNDERSTORMS LATE IN THE PERIOD...BUT WILL PASS TO NEXT SHIFT FOR A SECOND CLOSER LOOK BEFORE DROPPING DAY 6 AND 7 POPS. 500 MB HEIGHTS AVERAGE 580 DM...THICKNESSES IN LOW 570S WITH VERY LITTLE CHANGE THRU THE PERIOD. THIS WILL PRODUCE HIGHS ABOUT NORMAL...WHICH IS WELL INTO THE 80S. SURFACE PRESSURE GRADIENTS ARE WEAK MOST OF THE TIME FOR GENERALLY LIGHT WINDS AS WELL. SIMONSEN && .GGW WATCHES/WARNINGS/ADVISORIES...NONE. &&
Hazardous weather outlook, Jul 7, 5:56 AM MDT, 13 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 556 AM MDT WED JUL 7 2004 MTZ016>024-059>062-081200- CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-DANIELS- EASTERN ROOSEVELT-GARFIELD-MCCONE-NORTHERN PHILLIPS-NORTHERN VALLEY- PETROLEUM-RICHLAND-SHERIDAN-SOUTHWEST PHILLIPS-WESTERN ROOSEVELT- 556 AM MDT WED JUL 7 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING WITH THE POTENTIAL FOR SOME THUNDERSTORMS TO BECOME SEVERE. FOR ADDITIONAL INFORMATION...REFER TO GTFSPSGGW OR WWUS85 KGGW. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ025>027-081200- DAWSON-PRAIRIE-WIBAUX- 556 AM MDT WED JUL 7 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... SCATTERED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING WITH THE POTENTIAL FOR SOME THUNDERSTORMS TO BECOME SEVERE. FOR ADDITIONAL INFORMATION...REFER TO GTFSPSGGW OR WWUS85 KGGW. .DAYS TWO THROUGH SEVEN... SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL REMAIN A POSSIBILITY THURSDAY...WITH THE POTENTIAL FOR SOME THUNDERSTORMS TO BECOME SEVERE. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. DNS
In the hours before
Local storm report, Jul 7, 6:51 PM MDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
651 PM MDT WED JUL 07 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0648 PM HAIL 11 N VIDA 47.99N 105.49W
07/07/2004 0.25 INCH MCCONE MT TRAINED SPOTTER
HEAVY RAIN AND 30 MPH WIND GUSTS
&&
STLocal storm report, Jul 7, 7:18 PM MDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
718 PM MDT WED JUL 07 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0648 PM HEAVY RAIN 1 N RICHEY 47.64N 105.05W
07/07/2004 0.00 INCH DAWSON MT TRAINED SPOTTER
30 MPH WIND GUSTS
0648 PM HAIL RICHEY 47.64N 105.07W
07/07/2004 0.25 INCH DAWSON MT UNKNOWN
0.55 INCH RAIN
&&
STLocal storm report, Jul 7, 7:20 PM MDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
720 PM MDT WED JUL 07 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0719 PM LIGHTNING 9 S LINDSAY 47.08N 105.18W
07/07/2004 DAWSON MT TRAINED SPOTTER
45 MPH WIND GUSTS
&&
STLocal storm report, Jul 7, 7:29 PM MDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
729 PM MDT WED JUL 07 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0719 PM TSTM WND GST 1 N RICHEY 47.64N 105.05W
07/07/2004 0 MPH DAWSON MT TRAINED SPOTTER
60 MPH WIND GUST WITH 1.50 INCH RAIN
&&
STThe office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 6:59 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 61 min |
| Jul 7, 7:13 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 62 min |
| Jul 7, 7:31 PM MDT | Severe Thunderstorm Warning | GGW | Prairie | 44 min |
| Jul 7, 8:02 PM MDT | Severe Thunderstorm Warning | GGW | Dawson | 43 min |
| Jul 7, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | Richland | 48 min |
| Jul 7, 8:12 PM MDT | Severe Thunderstorm Warning | GGW | Roosevelt | 63 min |
Nearby
Flash Flood Warnings in Montana, 2004Every flash flood warning in 2004
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.