Alert archive / Montana / Flash Flood Warnings in 1998
Flash Flood Warning 3, NWS Glasgow, MT
NWS Glasgow, MT issued this flash flood warning at Jul 4, 1998, 5:39 PM MDT for Daniels County, Montana. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 4, 1998, 5:39 PM MDT (23:39 UTC)
- Expired
- Jul 4, 1998, 7:40 PM MDT
- In force
- 2 hr
- Issued by
- NWS Glasgow, MT
- Area
- Whole counties
County Daniels County, MT
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 11.7 hours before the alert went out and 403 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
- 149 J/kg
- Mixed-layer CIN
- -293 J/kg
- Mixed-layer LCL
- 1077 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 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 4, 2:30 PM MDT, 3 hours 9 minutes earlier.
Area forecast discussion, Jul 4, 2:30 PM MDT, 3 hours 9 minutes before
NORTHEAST MONTANA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GLASGOW MT 230 PM MDT SAT JUL 4 1998 SETTING UP FOR A REPEAT OF LAST NIGHT. STORMS FIRING IN CENTRAL IDAHO AND WATCH BOX OUT FOR CENTRAL MONTANA. EXPECT THESE STORMS TO MOVE OUT INTO THE PLAINS BY LATE AFTERNOON/EVENING AND INTO NORTHEAST MONTANA OVERNIGHT. WEAK SURFACE TROF OVER CENTRAL MONTANA BUT SO FAR NOTHING OCCURING ALONG IT EXCEPT FOR STRATUS CU THIS MORNING ACROSS NORTHEAST MONTANA. DEW POINTS IN THE LOW-MID 60S OVER EASTERN MONTANA AND AIRMASS POTENTIALLY VERY UNSTABLE. UPPER TROF OVER PAC NW FORECAST TO OPEN UP MORE AS IT MOVES EAST WITH FLOW BECOMING MORE WEST-NW ON MONDAY. SURFACE TROF MOVE INTO DAKOTAS ON SUNDAY AND WITH LOW LEVEL FLOW ALSO GOING NORTHWEST MAY ACTUALLY SEE A DROP IN HUMIDITY TO MORE NORMAL FOR NORTHEAST MONTANA BY MIDDLE OF THE WEEK. GGW 7453 061/083/060/080 GDV 6443 063/082/062/082 CCF GGW TB 061/083 060/080 060 90745 EBERT
The office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 10:06 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 64 min |
| Jul 3, 10:55 PM MDT | Severe Thunderstorm Warning | GGW | Garfield | 65 min |
| Jul 3, 11:09 PM MDT | Severe Thunderstorm Warning | GGW | Phillips | 61 min |
| Jul 3, 11:39 PM MDT | Flash Flood Warning | GGW | Garfield, Phillips | 116 min |
| Jul 4, 1:00 AM MDT | Severe Thunderstorm Warning | GGW | Phillips | 65 min |
| Jul 4, 1:43 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 62 min |
| Jul 4, 2:52 AM MDT | Severe Thunderstorm Warning | GGW | Valley | 58 min |
| Jul 4, 4:54 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 61 min |
| Jul 4, 5:11 PM MDT | Severe Thunderstorm Warning | GGW | Valley | 64 min |
| Jul 4, 5:47 PM MDT | Severe Thunderstorm Warning | GGW | Daniels | 63 min |
| Jul 4, 5:50 PM MDT | Severe Thunderstorm Warning | GGW | Petroleum | 65 min |
Nearby
Flash Flood Warnings in Montana, 1998Every flash flood warning 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.