Alert archive / Montana / Flash Flood Warnings in 2001
Flash Flood Warning 1, NWS Billings, MT
NWS Billings, MT issued this flash flood warning at May 28, 2001, 4:41 PM MDT for Carbon County, Montana. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 28, 2001, 4:41 PM MDT (22:41 UTC)
- Expired
- May 28, 2001, 5:15 PM MDT
- In force
- 34 min
- Issued by
- NWS Billings, MT
- Area
- Whole counties
County Carbon County, MT
The radar
The Billings radar (KBLX), 77 km from the middle of the area, began a volume at 22:44 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.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 10.7 hours before the alert went out and 245 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
- 1418 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KBYZ 282241 FFWBIL FFWBIL MTC009-282315- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BILLINGS MT 441 PM MDT MON MAY 28 2001 THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL CARBON COUNTY IN SOUTH CENTRAL MONTANA * UNTIL 515 PM MDT * AT 441 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA...NEAR JOLIET. * SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE WARNED AREA. ABSOLUTELY DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. $$ STROBIN
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 Billings, MT wrote its last area forecast discussion before this flash flood warning went out at May 28, 1:57 PM MDT, 2 hours 44 minutes earlier.
Area forecast discussion, May 28, 1:57 PM MDT, 2 hours 44 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
157 PM MDT MON MAY 28 2001
.TUE AND WED...
NEITHER THE ETA NOR THE AVN MODEL EXACTLY MATCH UP WITH THE 18Z WATER
VAPOR IMAGERY. THE RELATIVE HUMIDITY FIELDS ARE SOMEWHAT BEHIND WHAT
THE IMAGERY REVEALS ALTHOUGH ETA SEEMS TO DO SOMEWHAT BETTER WITH
PLACEMENT OF THE UPPER AIR FEATURES. ETA HAS A SLIGHT EDGE WITH THE
SURFACE FEATURES OVER CANADA AT 18Z...BUT AVN DOES BETTER OVER AREAS
OF THE CONUS SOUTH OF MONTANA.
THE ESSENCE OF BOTH MODELS...HOWEVER...IS SIMILAR. THE UPPER RIDGE
MOVES EAST FOLLOWED BY A STRONG SURGE ALOFT CREATING NEAR ZONAL FLOW
OVER THE COUNTY WARNING AREA BY TUESDAY LATE AFTERNOON. VORT LOBES
MAKE THEIR WAY INTO THE COUNTY WARNING AREA TONIGHT INTO TUESDAY
BRINGING THE MUCH NEEDED RAIN TO THE AREA. ON THE SURFACE...A FRONTAL
SYSTEM PASSES THROUGH THE COUNTY WARNING AREA...EXITING THE EASTERN
ZONES LATE TUESDAY AFTERNOON. HIGH TEMPERATURES BEHIND THE SYSTEM WILL
BE SOMEWHAT COOLER THAN READINGS HAVE BEEN RECENTLY.
INDICATIONS ARE THAT SOME SUBSIDENCE MAY SHUT OFF THE PRECIPITATION
VERY SOON AFTER FRONTAL PASSAGE. AM NOT SO SURE THAT WAY. AMONG OTHER
THINGS...THE SYSTEMS HAVE BEEN SLOW MOVING AND THIS ONE DOES NOT LOOK
LIKE THE EXCEPTION. A VORT MAX IS AROUND THE EASTERN ZONES ON WEDNESDAY
AT 18Z ACCORDING TO BOTH MODELS...MORE SO WITH ETA THAN AVN. MOREOVER...
ETA HINTS AT POSSIBLE PRECIPITATION OVER THE BIG HORNS ON WEDNESDAY.
FOR NOW WILL GRADUALLY SLOW DOWN THE PRECIPITATION OVER THE EAST TO
WHERE THERE WILL BE JUST ISOLATED LINGERING MORNING SHOWERS OVER THE
EXTREME EAST THAT DAY.
GUIDANCE TEMPERATURES FOR TUESDAY...ESPECIALLY FOR FAN AND MAV IN SOME
INSTANCES...SEEM RATHER COLD. THINGS GET BETTER WEDNESDAY...BUT STILL
A BIT COOL...ESPECIALLY THE MAV SOLUTION. CHB
.THU...FRI...SAT...SUN...MON...
NORTHWEST FLOW ALOFT WILL CONTINUE ACROSS THE AREA THURSDAY...BRINGING
ISOLATED SHOWERS TO THE EAST AND COOL WEATHER AREA-WIDE. UPPER LEVEL
RIDGE WILL BEGIN BUILDING IN THE WEST LATE THURSDAY AND MOVE SLOWLY
EAST THROUGH SATURDAY. RIDGE WILL BRING WARMING TEMPERATURES AND DRY
WEATHER TO THE WEST THURSDAY NIGHT AND FRIDAY AND TO THE EAST FRIDAY
AND FRIDAY NIGHT. SOUTHWEST FLOW WILL DEVELOP OVER THE AREA BY
SATURDAY...BRINGING A CHANCE OF SHOWERS TO THE AREA SATURDAY THROUGH
MONDAY. TEMPERATURES WILL BE IN A COOLING TREND SATURDAY AND SUNDAY.
MIDDENDORF
TUE WED THU FRI SAT SUN MON
-----------------------------------------------------------
BIL 050/071 045/075 050/075 052/087 057/078 047/070 049/072
62/W 00/B 20/U 02/B 23/T 33/T 32/B
LVM 048/067 040/072 043/075 045/085 050/075 042/067 043/070
62/W 00/B 20/U 02/B 23/T 33/T 32/B
HDN 048/073 043/077 046/078 048/090 053/082 043/073 044/075
63/W 20/B 20/U 02/B 23/T 33/T 32/B
MLS 055/074 045/075 047/072 052/090 055/089 050/075 049/075
66/T 30/B 22/B 20/U 03/T 33/T 33/T
4BQ 054/073 044/074 044/070 050/088 053/087 048/074 047/073
66/T 30/B 22/B 20/U 03/T 33/T 33/T
BHK 054/073 042/073 043/068 048/086 050/085 046/073 045/072
66/T 42/W 22/B 20/U 03/T 33/T 33/T
SHR 051/070 044/073 043/075 045/087 050/083 042/072 043/070
64/T 30/B 22/B 20/U 03/T 33/T 33/TNearby
Flash Flood Warnings in Montana, 2001Every flash flood warning in 2001
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.